Annotation of embedaddon/quagga/doc/texinfo.tex, revision 1.1.1.3

1.1       misho       1: % texinfo.tex -- TeX macros to handle Texinfo files.
                      2: % 
                      3: % Load plain if necessary, i.e., if running under initex.
                      4: \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
                      5: %
1.1.1.3 ! misho       6: \def\texinfoversion{2012-03-11.15}
1.1       misho       7: %
                      8: % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
                      9: % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
1.1.1.3 ! misho      10: % 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
1.1       misho      11: %
                     12: % This texinfo.tex file is free software: you can redistribute it and/or
                     13: % modify it under the terms of the GNU General Public License as
                     14: % published by the Free Software Foundation, either version 3 of the
                     15: % License, or (at your option) any later version.
                     16: %
                     17: % This texinfo.tex file is distributed in the hope that it will be
                     18: % useful, but WITHOUT ANY WARRANTY; without even the implied warranty
                     19: % of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     20: % General Public License for more details.
                     21: %
                     22: % You should have received a copy of the GNU General Public License
                     23: % along with this program.  If not, see <http://www.gnu.org/licenses/>.
                     24: %
                     25: % As a special exception, when this file is read by TeX when processing
                     26: % a Texinfo source document, you may use the result without
                     27: % restriction.  (This has been our intent since Texinfo was invented.)
                     28: %
                     29: % Please try the latest version of texinfo.tex before submitting bug
                     30: % reports; you can get the latest version from:
                     31: %   http://www.gnu.org/software/texinfo/ (the Texinfo home page), or
                     32: %   ftp://tug.org/tex/texinfo.tex
                     33: %     (and all CTAN mirrors, see http://www.ctan.org).
                     34: % The texinfo.tex in any given distribution could well be out
                     35: % of date, so if that's what you're using, please check.
                     36: %
                     37: % Send bug reports to bug-texinfo@gnu.org.  Please include including a
                     38: % complete document in each bug report with which we can reproduce the
                     39: % problem.  Patches are, of course, greatly appreciated.
                     40: %
                     41: % To process a Texinfo manual with TeX, it's most reliable to use the
                     42: % texi2dvi shell script that comes with the distribution.  For a simple
                     43: % manual foo.texi, however, you can get away with this:
                     44: %   tex foo.texi
                     45: %   texindex foo.??
                     46: %   tex foo.texi
                     47: %   tex foo.texi
                     48: %   dvips foo.dvi -o  # or whatever; this makes foo.ps.
                     49: % The extra TeX runs get the cross-reference information correct.
                     50: % Sometimes one run after texindex suffices, and sometimes you need more
                     51: % than two; texi2dvi does it as many times as necessary.
                     52: %
                     53: % It is possible to adapt texinfo.tex for other languages, to some
                     54: % extent.  You can get the existing language-specific files from the
                     55: % full Texinfo distribution.
                     56: %
                     57: % The GNU Texinfo home page is http://www.gnu.org/software/texinfo.
                     58: 
                     59: 
                     60: \message{Loading texinfo [version \texinfoversion]:}
                     61: 
                     62: % If in a .fmt file, print the version number
                     63: % and turn on active characters that we couldn't do earlier because
                     64: % they might have appeared in the input file name.
                     65: \everyjob{\message{[Texinfo version \texinfoversion]}%
                     66:   \catcode`+=\active \catcode`\_=\active}
                     67: 
                     68: \chardef\other=12
                     69: 
                     70: % We never want plain's \outer definition of \+ in Texinfo.
                     71: % For @tex, we can use \tabalign.
                     72: \let\+ = \relax
                     73: 
                     74: % Save some plain tex macros whose names we will redefine.
                     75: \let\ptexb=\b
                     76: \let\ptexbullet=\bullet
                     77: \let\ptexc=\c
                     78: \let\ptexcomma=\,
                     79: \let\ptexdot=\.
                     80: \let\ptexdots=\dots
                     81: \let\ptexend=\end
                     82: \let\ptexequiv=\equiv
                     83: \let\ptexexclam=\!
                     84: \let\ptexfootnote=\footnote
                     85: \let\ptexgtr=>
                     86: \let\ptexhat=^
                     87: \let\ptexi=\i
                     88: \let\ptexindent=\indent
                     89: \let\ptexinsert=\insert
                     90: \let\ptexlbrace=\{
                     91: \let\ptexless=<
                     92: \let\ptexnewwrite\newwrite
                     93: \let\ptexnoindent=\noindent
                     94: \let\ptexplus=+
1.1.1.2   misho      95: \let\ptexraggedright=\raggedright
1.1       misho      96: \let\ptexrbrace=\}
                     97: \let\ptexslash=\/
                     98: \let\ptexstar=\*
                     99: \let\ptext=\t
                    100: \let\ptextop=\top
1.1.1.2   misho     101: {\catcode`\'=\active \global\let\ptexquoteright'}% active in plain's math mode
1.1       misho     102: 
                    103: % If this character appears in an error message or help string, it
                    104: % starts a new line in the output.
                    105: \newlinechar = `^^J
                    106: 
                    107: % Use TeX 3.0's \inputlineno to get the line number, for better error
                    108: % messages, but if we're using an old version of TeX, don't do anything.
                    109: %
                    110: \ifx\inputlineno\thisisundefined
                    111:   \let\linenumber = \empty % Pre-3.0.
                    112: \else
                    113:   \def\linenumber{l.\the\inputlineno:\space}
                    114: \fi
                    115: 
                    116: % Set up fixed words for English if not already set.
                    117: \ifx\putwordAppendix\undefined  \gdef\putwordAppendix{Appendix}\fi
                    118: \ifx\putwordChapter\undefined   \gdef\putwordChapter{Chapter}\fi
1.1.1.2   misho     119: \ifx\putworderror\undefined     \gdef\putworderror{error}\fi
1.1       misho     120: \ifx\putwordfile\undefined      \gdef\putwordfile{file}\fi
                    121: \ifx\putwordin\undefined        \gdef\putwordin{in}\fi
1.1.1.2   misho     122: \ifx\putwordIndexIsEmpty\undefined       \gdef\putwordIndexIsEmpty{(Index is empty)}\fi
                    123: \ifx\putwordIndexNonexistent\undefined   \gdef\putwordIndexNonexistent{(Index is nonexistent)}\fi
1.1       misho     124: \ifx\putwordInfo\undefined      \gdef\putwordInfo{Info}\fi
                    125: \ifx\putwordInstanceVariableof\undefined \gdef\putwordInstanceVariableof{Instance Variable of}\fi
                    126: \ifx\putwordMethodon\undefined  \gdef\putwordMethodon{Method on}\fi
                    127: \ifx\putwordNoTitle\undefined   \gdef\putwordNoTitle{No Title}\fi
                    128: \ifx\putwordof\undefined        \gdef\putwordof{of}\fi
                    129: \ifx\putwordon\undefined        \gdef\putwordon{on}\fi
                    130: \ifx\putwordpage\undefined      \gdef\putwordpage{page}\fi
                    131: \ifx\putwordsection\undefined   \gdef\putwordsection{section}\fi
                    132: \ifx\putwordSection\undefined   \gdef\putwordSection{Section}\fi
                    133: \ifx\putwordsee\undefined       \gdef\putwordsee{see}\fi
                    134: \ifx\putwordSee\undefined       \gdef\putwordSee{See}\fi
                    135: \ifx\putwordShortTOC\undefined  \gdef\putwordShortTOC{Short Contents}\fi
                    136: \ifx\putwordTOC\undefined       \gdef\putwordTOC{Table of Contents}\fi
                    137: %
                    138: \ifx\putwordMJan\undefined \gdef\putwordMJan{January}\fi
                    139: \ifx\putwordMFeb\undefined \gdef\putwordMFeb{February}\fi
                    140: \ifx\putwordMMar\undefined \gdef\putwordMMar{March}\fi
                    141: \ifx\putwordMApr\undefined \gdef\putwordMApr{April}\fi
                    142: \ifx\putwordMMay\undefined \gdef\putwordMMay{May}\fi
                    143: \ifx\putwordMJun\undefined \gdef\putwordMJun{June}\fi
                    144: \ifx\putwordMJul\undefined \gdef\putwordMJul{July}\fi
                    145: \ifx\putwordMAug\undefined \gdef\putwordMAug{August}\fi
                    146: \ifx\putwordMSep\undefined \gdef\putwordMSep{September}\fi
                    147: \ifx\putwordMOct\undefined \gdef\putwordMOct{October}\fi
                    148: \ifx\putwordMNov\undefined \gdef\putwordMNov{November}\fi
                    149: \ifx\putwordMDec\undefined \gdef\putwordMDec{December}\fi
                    150: %
                    151: \ifx\putwordDefmac\undefined    \gdef\putwordDefmac{Macro}\fi
                    152: \ifx\putwordDefspec\undefined   \gdef\putwordDefspec{Special Form}\fi
                    153: \ifx\putwordDefvar\undefined    \gdef\putwordDefvar{Variable}\fi
                    154: \ifx\putwordDefopt\undefined    \gdef\putwordDefopt{User Option}\fi
                    155: \ifx\putwordDeffunc\undefined   \gdef\putwordDeffunc{Function}\fi
                    156: 
                    157: % Since the category of space is not known, we have to be careful.
                    158: \chardef\spacecat = 10
                    159: \def\spaceisspace{\catcode`\ =\spacecat}
                    160: 
                    161: % sometimes characters are active, so we need control sequences.
1.1.1.2   misho     162: \chardef\ampChar   = `\&
1.1       misho     163: \chardef\colonChar = `\:
                    164: \chardef\commaChar = `\,
                    165: \chardef\dashChar  = `\-
                    166: \chardef\dotChar   = `\.
                    167: \chardef\exclamChar= `\!
1.1.1.2   misho     168: \chardef\hashChar  = `\#
1.1       misho     169: \chardef\lquoteChar= `\`
                    170: \chardef\questChar = `\?
                    171: \chardef\rquoteChar= `\'
                    172: \chardef\semiChar  = `\;
1.1.1.2   misho     173: \chardef\slashChar = `\/
1.1       misho     174: \chardef\underChar = `\_
                    175: 
                    176: % Ignore a token.
                    177: %
                    178: \def\gobble#1{}
                    179: 
                    180: % The following is used inside several \edef's.
                    181: \def\makecsname#1{\expandafter\noexpand\csname#1\endcsname}
                    182: 
                    183: % Hyphenation fixes.
                    184: \hyphenation{
                    185:   Flor-i-da Ghost-script Ghost-view Mac-OS Post-Script
                    186:   ap-pen-dix bit-map bit-maps
                    187:   data-base data-bases eshell fall-ing half-way long-est man-u-script
                    188:   man-u-scripts mini-buf-fer mini-buf-fers over-view par-a-digm
                    189:   par-a-digms rath-er rec-tan-gu-lar ro-bot-ics se-vere-ly set-up spa-ces
                    190:   spell-ing spell-ings
                    191:   stand-alone strong-est time-stamp time-stamps which-ever white-space
                    192:   wide-spread wrap-around
                    193: }
                    194: 
                    195: % Margin to add to right of even pages, to left of odd pages.
                    196: \newdimen\bindingoffset
                    197: \newdimen\normaloffset
                    198: \newdimen\pagewidth \newdimen\pageheight
                    199: 
                    200: % For a final copy, take out the rectangles
                    201: % that mark overfull boxes (in case you have decided
                    202: % that the text looks ok even though it passes the margin).
                    203: %
1.1.1.2   misho     204: \def\finalout{\overfullrule=0pt }
1.1       misho     205: 
                    206: % Sometimes it is convenient to have everything in the transcript file
                    207: % and nothing on the terminal.  We don't just call \tracingall here,
                    208: % since that produces some useless output on the terminal.  We also make
                    209: % some effort to order the tracing commands to reduce output in the log
                    210: % file; cf. trace.sty in LaTeX.
                    211: %
                    212: \def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
                    213: \def\loggingall{%
                    214:   \tracingstats2
                    215:   \tracingpages1
                    216:   \tracinglostchars2  % 2 gives us more in etex
                    217:   \tracingparagraphs1
                    218:   \tracingoutput1
                    219:   \tracingmacros2
                    220:   \tracingrestores1
                    221:   \showboxbreadth\maxdimen \showboxdepth\maxdimen
1.1.1.2   misho     222:   \ifx\eTeXversion\thisisundefined\else % etex gives us more logging
1.1       misho     223:     \tracingscantokens1
                    224:     \tracingifs1
                    225:     \tracinggroups1
                    226:     \tracingnesting2
                    227:     \tracingassigns1
                    228:   \fi
                    229:   \tracingcommands3  % 3 gives us more in etex
                    230:   \errorcontextlines16
                    231: }%
                    232: 
1.1.1.3 ! misho     233: % @errormsg{MSG}.  Do the index-like expansions on MSG, but if things
        !           234: % aren't perfect, it's not the end of the world, being an error message,
        !           235: % after all.
        !           236: % 
        !           237: \def\errormsg{\begingroup \indexnofonts \doerrormsg}
        !           238: \def\doerrormsg#1{\errmessage{#1}}
        !           239: 
1.1       misho     240: % add check for \lastpenalty to plain's definitions.  If the last thing
                    241: % we did was a \nobreak, we don't want to insert more space.
                    242: %
                    243: \def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount
                    244:   \removelastskip\penalty-50\smallskip\fi\fi}
                    245: \def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount
                    246:   \removelastskip\penalty-100\medskip\fi\fi}
                    247: \def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount
                    248:   \removelastskip\penalty-200\bigskip\fi\fi}
                    249: 
                    250: % Do @cropmarks to get crop marks.
                    251: %
                    252: \newif\ifcropmarks
                    253: \let\cropmarks = \cropmarkstrue
                    254: %
                    255: % Dimensions to add cropmarks at corners.
                    256: % Added by P. A. MacKay, 12 Nov. 1986
                    257: %
                    258: \newdimen\outerhsize \newdimen\outervsize % set by the paper size routines
                    259: \newdimen\cornerlong  \cornerlong=1pc
                    260: \newdimen\cornerthick \cornerthick=.3pt
                    261: \newdimen\topandbottommargin \topandbottommargin=.75in
                    262: 
                    263: % Output a mark which sets \thischapter, \thissection and \thiscolor.
                    264: % We dump everything together because we only have one kind of mark.
                    265: % This works because we only use \botmark / \topmark, not \firstmark.
                    266: %
                    267: % A mark contains a subexpression of the \ifcase ... \fi construct.
                    268: % \get*marks macros below extract the needed part using \ifcase.
                    269: %
                    270: % Another complication is to let the user choose whether \thischapter
                    271: % (\thissection) refers to the chapter (section) in effect at the top
                    272: % of a page, or that at the bottom of a page.  The solution is
                    273: % described on page 260 of The TeXbook.  It involves outputting two
                    274: % marks for the sectioning macros, one before the section break, and
                    275: % one after.  I won't pretend I can describe this better than DEK...
                    276: \def\domark{%
                    277:   \toks0=\expandafter{\lastchapterdefs}%
                    278:   \toks2=\expandafter{\lastsectiondefs}%
                    279:   \toks4=\expandafter{\prevchapterdefs}%
                    280:   \toks6=\expandafter{\prevsectiondefs}%
                    281:   \toks8=\expandafter{\lastcolordefs}%
                    282:   \mark{%
                    283:                    \the\toks0 \the\toks2
                    284:       \noexpand\or \the\toks4 \the\toks6
                    285:     \noexpand\else \the\toks8
                    286:   }%
                    287: }
                    288: % \topmark doesn't work for the very first chapter (after the title
                    289: % page or the contents), so we use \firstmark there -- this gets us
                    290: % the mark with the chapter defs, unless the user sneaks in, e.g.,
                    291: % @setcolor (or @url, or @link, etc.) between @contents and the very
                    292: % first @chapter.
                    293: \def\gettopheadingmarks{%
                    294:   \ifcase0\topmark\fi
                    295:   \ifx\thischapter\empty \ifcase0\firstmark\fi \fi
                    296: }
                    297: \def\getbottomheadingmarks{\ifcase1\botmark\fi}
                    298: \def\getcolormarks{\ifcase2\topmark\fi}
                    299: 
                    300: % Avoid "undefined control sequence" errors.
                    301: \def\lastchapterdefs{}
                    302: \def\lastsectiondefs{}
                    303: \def\prevchapterdefs{}
                    304: \def\prevsectiondefs{}
                    305: \def\lastcolordefs{}
                    306: 
                    307: % Main output routine.
                    308: \chardef\PAGE = 255
                    309: \output = {\onepageout{\pagecontents\PAGE}}
                    310: 
                    311: \newbox\headlinebox
                    312: \newbox\footlinebox
                    313: 
                    314: % \onepageout takes a vbox as an argument.  Note that \pagecontents
                    315: % does insertions, but you have to call it yourself.
                    316: \def\onepageout#1{%
                    317:   \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
                    318:   %
                    319:   \ifodd\pageno  \advance\hoffset by \bindingoffset
                    320:   \else \advance\hoffset by -\bindingoffset\fi
                    321:   %
                    322:   % Do this outside of the \shipout so @code etc. will be expanded in
                    323:   % the headline as they should be, not taken literally (outputting ''code).
                    324:   \ifodd\pageno \getoddheadingmarks \else \getevenheadingmarks \fi
                    325:   \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}%
                    326:   \ifodd\pageno \getoddfootingmarks \else \getevenfootingmarks \fi
                    327:   \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}%
                    328:   %
                    329:   {%
                    330:     % Have to do this stuff outside the \shipout because we want it to
                    331:     % take effect in \write's, yet the group defined by the \vbox ends
                    332:     % before the \shipout runs.
                    333:     %
                    334:     \indexdummies         % don't expand commands in the output.
                    335:     \normalturnoffactive  % \ in index entries must not stay \, e.g., if
                    336:                % the page break happens to be in the middle of an example.
                    337:                % We don't want .vr (or whatever) entries like this:
                    338:                % \entry{{\tt \indexbackslash }acronym}{32}{\code {\acronym}}
                    339:                % "\acronym" won't work when it's read back in;
                    340:                % it needs to be
                    341:                % {\code {{\tt \backslashcurfont }acronym}
                    342:     \shipout\vbox{%
                    343:       % Do this early so pdf references go to the beginning of the page.
                    344:       \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi
                    345:       %
                    346:       \ifcropmarks \vbox to \outervsize\bgroup
                    347:         \hsize = \outerhsize
                    348:         \vskip-\topandbottommargin
                    349:         \vtop to0pt{%
                    350:           \line{\ewtop\hfil\ewtop}%
                    351:           \nointerlineskip
                    352:           \line{%
                    353:             \vbox{\moveleft\cornerthick\nstop}%
                    354:             \hfill
                    355:             \vbox{\moveright\cornerthick\nstop}%
                    356:           }%
                    357:           \vss}%
                    358:         \vskip\topandbottommargin
                    359:         \line\bgroup
                    360:           \hfil % center the page within the outer (page) hsize.
                    361:           \ifodd\pageno\hskip\bindingoffset\fi
                    362:           \vbox\bgroup
                    363:       \fi
                    364:       %
                    365:       \unvbox\headlinebox
                    366:       \pagebody{#1}%
                    367:       \ifdim\ht\footlinebox > 0pt
                    368:         % Only leave this space if the footline is nonempty.
                    369:         % (We lessened \vsize for it in \oddfootingyyy.)
                    370:         % The \baselineskip=24pt in plain's \makefootline has no effect.
                    371:         \vskip 24pt
                    372:         \unvbox\footlinebox
                    373:       \fi
                    374:       %
                    375:       \ifcropmarks
                    376:           \egroup % end of \vbox\bgroup
                    377:         \hfil\egroup % end of (centering) \line\bgroup
                    378:         \vskip\topandbottommargin plus1fill minus1fill
                    379:         \boxmaxdepth = \cornerthick
                    380:         \vbox to0pt{\vss
                    381:           \line{%
                    382:             \vbox{\moveleft\cornerthick\nsbot}%
                    383:             \hfill
                    384:             \vbox{\moveright\cornerthick\nsbot}%
                    385:           }%
                    386:           \nointerlineskip
                    387:           \line{\ewbot\hfil\ewbot}%
                    388:         }%
                    389:       \egroup % \vbox from first cropmarks clause
                    390:       \fi
                    391:     }% end of \shipout\vbox
                    392:   }% end of group with \indexdummies
                    393:   \advancepageno
                    394:   \ifnum\outputpenalty>-20000 \else\dosupereject\fi
                    395: }
                    396: 
                    397: \newinsert\margin \dimen\margin=\maxdimen
                    398: 
                    399: \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
                    400: {\catcode`\@ =11
                    401: \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
                    402: % marginal hacks, juha@viisa.uucp (Juha Takala)
                    403: \ifvoid\margin\else % marginal info is present
                    404:   \rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi
                    405: \dimen@=\dp#1\relax \unvbox#1\relax
                    406: \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
                    407: \ifr@ggedbottom \kern-\dimen@ \vfil \fi}
                    408: }
                    409: 
                    410: % Here are the rules for the cropmarks.  Note that they are
                    411: % offset so that the space between them is truly \outerhsize or \outervsize
                    412: % (P. A. MacKay, 12 November, 1986)
                    413: %
                    414: \def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
                    415: \def\nstop{\vbox
                    416:   {\hrule height\cornerthick depth\cornerlong width\cornerthick}}
                    417: \def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
                    418: \def\nsbot{\vbox
                    419:   {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
                    420: 
                    421: % Parse an argument, then pass it to #1.  The argument is the rest of
                    422: % the input line (except we remove a trailing comment).  #1 should be a
                    423: % macro which expects an ordinary undelimited TeX argument.
                    424: %
                    425: \def\parsearg{\parseargusing{}}
                    426: \def\parseargusing#1#2{%
                    427:   \def\argtorun{#2}%
                    428:   \begingroup
                    429:     \obeylines
                    430:     \spaceisspace
                    431:     #1%
                    432:     \parseargline\empty% Insert the \empty token, see \finishparsearg below.
                    433: }
                    434: 
                    435: {\obeylines %
                    436:   \gdef\parseargline#1^^M{%
                    437:     \endgroup % End of the group started in \parsearg.
                    438:     \argremovecomment #1\comment\ArgTerm%
                    439:   }%
                    440: }
                    441: 
                    442: % First remove any @comment, then any @c comment.
                    443: \def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm}
                    444: \def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm}
                    445: 
                    446: % Each occurrence of `\^^M' or `<space>\^^M' is replaced by a single space.
                    447: %
                    448: % \argremovec might leave us with trailing space, e.g.,
                    449: %    @end itemize  @c foo
                    450: % This space token undergoes the same procedure and is eventually removed
                    451: % by \finishparsearg.
                    452: %
                    453: \def\argcheckspaces#1\^^M{\argcheckspacesX#1\^^M \^^M}
                    454: \def\argcheckspacesX#1 \^^M{\argcheckspacesY#1\^^M}
                    455: \def\argcheckspacesY#1\^^M#2\^^M#3\ArgTerm{%
                    456:   \def\temp{#3}%
                    457:   \ifx\temp\empty
                    458:     % Do not use \next, perhaps the caller of \parsearg uses it; reuse \temp:
                    459:     \let\temp\finishparsearg
                    460:   \else
                    461:     \let\temp\argcheckspaces
                    462:   \fi
                    463:   % Put the space token in:
                    464:   \temp#1 #3\ArgTerm
                    465: }
                    466: 
                    467: % If a _delimited_ argument is enclosed in braces, they get stripped; so
                    468: % to get _exactly_ the rest of the line, we had to prevent such situation.
                    469: % We prepended an \empty token at the very beginning and we expand it now,
                    470: % just before passing the control to \argtorun.
                    471: % (Similarly, we have to think about #3 of \argcheckspacesY above: it is
                    472: % either the null string, or it ends with \^^M---thus there is no danger
                    473: % that a pair of braces would be stripped.
                    474: %
                    475: % But first, we have to remove the trailing space token.
                    476: %
                    477: \def\finishparsearg#1 \ArgTerm{\expandafter\argtorun\expandafter{#1}}
                    478: 
                    479: % \parseargdef\foo{...}
                    480: %      is roughly equivalent to
                    481: % \def\foo{\parsearg\Xfoo}
                    482: % \def\Xfoo#1{...}
                    483: %
                    484: % Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my
                    485: % favourite TeX trick.  --kasal, 16nov03
                    486: 
                    487: \def\parseargdef#1{%
                    488:   \expandafter \doparseargdef \csname\string#1\endcsname #1%
                    489: }
                    490: \def\doparseargdef#1#2{%
                    491:   \def#2{\parsearg#1}%
                    492:   \def#1##1%
                    493: }
                    494: 
                    495: % Several utility definitions with active space:
                    496: {
                    497:   \obeyspaces
                    498:   \gdef\obeyedspace{ }
                    499: 
                    500:   % Make each space character in the input produce a normal interword
                    501:   % space in the output.  Don't allow a line break at this space, as this
                    502:   % is used only in environments like @example, where each line of input
                    503:   % should produce a line of output anyway.
                    504:   %
                    505:   \gdef\sepspaces{\obeyspaces\let =\tie}
                    506: 
                    507:   % If an index command is used in an @example environment, any spaces
                    508:   % therein should become regular spaces in the raw index file, not the
                    509:   % expansion of \tie (\leavevmode \penalty \@M \ ).
                    510:   \gdef\unsepspaces{\let =\space}
                    511: }
                    512: 
                    513: 
                    514: \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
                    515: 
                    516: % Define the framework for environments in texinfo.tex.  It's used like this:
                    517: %
                    518: %   \envdef\foo{...}
                    519: %   \def\Efoo{...}
                    520: %
                    521: % It's the responsibility of \envdef to insert \begingroup before the
                    522: % actual body; @end closes the group after calling \Efoo.  \envdef also
                    523: % defines \thisenv, so the current environment is known; @end checks
                    524: % whether the environment name matches.  The \checkenv macro can also be
                    525: % used to check whether the current environment is the one expected.
                    526: %
                    527: % Non-false conditionals (@iftex, @ifset) don't fit into this, so they
                    528: % are not treated as environments; they don't open a group.  (The
                    529: % implementation of @end takes care not to call \endgroup in this
                    530: % special case.)
                    531: 
                    532: 
                    533: % At run-time, environments start with this:
                    534: \def\startenvironment#1{\begingroup\def\thisenv{#1}}
                    535: % initialize
                    536: \let\thisenv\empty
                    537: 
                    538: % ... but they get defined via ``\envdef\foo{...}'':
                    539: \long\def\envdef#1#2{\def#1{\startenvironment#1#2}}
                    540: \def\envparseargdef#1#2{\parseargdef#1{\startenvironment#1#2}}
                    541: 
                    542: % Check whether we're in the right environment:
                    543: \def\checkenv#1{%
                    544:   \def\temp{#1}%
                    545:   \ifx\thisenv\temp
                    546:   \else
                    547:     \badenverr
                    548:   \fi
                    549: }
                    550: 
                    551: % Environment mismatch, #1 expected:
                    552: \def\badenverr{%
                    553:   \errhelp = \EMsimple
                    554:   \errmessage{This command can appear only \inenvironment\temp,
                    555:     not \inenvironment\thisenv}%
                    556: }
                    557: \def\inenvironment#1{%
                    558:   \ifx#1\empty
1.1.1.2   misho     559:     outside of any environment%
1.1       misho     560:   \else
                    561:     in environment \expandafter\string#1%
                    562:   \fi
                    563: }
                    564: 
                    565: % @end foo executes the definition of \Efoo.
                    566: % But first, it executes a specialized version of \checkenv
                    567: %
                    568: \parseargdef\end{%
                    569:   \if 1\csname iscond.#1\endcsname
                    570:   \else
1.1.1.2   misho     571:     % The general wording of \badenverr may not be ideal.
1.1       misho     572:     \expandafter\checkenv\csname#1\endcsname
                    573:     \csname E#1\endcsname
                    574:     \endgroup
                    575:   \fi
                    576: }
                    577: 
                    578: \newhelp\EMsimple{Press RETURN to continue.}
                    579: 
                    580: 
                    581: % Be sure we're in horizontal mode when doing a tie, since we make space
                    582: % equivalent to this in @example-like environments. Otherwise, a space
                    583: % at the beginning of a line will start with \penalty -- and
                    584: % since \penalty is valid in vertical mode, we'd end up putting the
                    585: % penalty on the vertical list instead of in the new paragraph.
                    586: {\catcode`@ = 11
                    587:  % Avoid using \@M directly, because that causes trouble
                    588:  % if the definition is written into an index file.
                    589:  \global\let\tiepenalty = \@M
                    590:  \gdef\tie{\leavevmode\penalty\tiepenalty\ }
                    591: }
                    592: 
                    593: % @: forces normal size whitespace following.
                    594: \def\:{\spacefactor=1000 }
                    595: 
                    596: % @* forces a line break.
                    597: \def\*{\hfil\break\hbox{}\ignorespaces}
                    598: 
                    599: % @/ allows a line break.
                    600: \let\/=\allowbreak
                    601: 
                    602: % @. is an end-of-sentence period.
                    603: \def\.{.\spacefactor=\endofsentencespacefactor\space}
                    604: 
                    605: % @! is an end-of-sentence bang.
                    606: \def\!{!\spacefactor=\endofsentencespacefactor\space}
                    607: 
                    608: % @? is an end-of-sentence query.
                    609: \def\?{?\spacefactor=\endofsentencespacefactor\space}
                    610: 
                    611: % @frenchspacing on|off  says whether to put extra space after punctuation.
                    612: %
                    613: \def\onword{on}
                    614: \def\offword{off}
                    615: %
                    616: \parseargdef\frenchspacing{%
                    617:   \def\temp{#1}%
                    618:   \ifx\temp\onword \plainfrenchspacing
                    619:   \else\ifx\temp\offword \plainnonfrenchspacing
                    620:   \else
                    621:     \errhelp = \EMsimple
1.1.1.2   misho     622:     \errmessage{Unknown @frenchspacing option `\temp', must be on|off}%
1.1       misho     623:   \fi\fi
                    624: }
                    625: 
                    626: % @w prevents a word break.  Without the \leavevmode, @w at the
                    627: % beginning of a paragraph, when TeX is still in vertical mode, would
                    628: % produce a whole line of output instead of starting the paragraph.
                    629: \def\w#1{\leavevmode\hbox{#1}}
                    630: 
                    631: % @group ... @end group forces ... to be all on one page, by enclosing
                    632: % it in a TeX vbox.  We use \vtop instead of \vbox to construct the box
                    633: % to keep its height that of a normal line.  According to the rules for
                    634: % \topskip (p.114 of the TeXbook), the glue inserted is
                    635: % max (\topskip - \ht (first item), 0).  If that height is large,
                    636: % therefore, no glue is inserted, and the space between the headline and
                    637: % the text is small, which looks bad.
                    638: %
                    639: % Another complication is that the group might be very large.  This can
                    640: % cause the glue on the previous page to be unduly stretched, because it
                    641: % does not have much material.  In this case, it's better to add an
                    642: % explicit \vfill so that the extra space is at the bottom.  The
                    643: % threshold for doing this is if the group is more than \vfilllimit
                    644: % percent of a page (\vfilllimit can be changed inside of @tex).
                    645: %
                    646: \newbox\groupbox
                    647: \def\vfilllimit{0.7}
                    648: %
                    649: \envdef\group{%
                    650:   \ifnum\catcode`\^^M=\active \else
                    651:     \errhelp = \groupinvalidhelp
                    652:     \errmessage{@group invalid in context where filling is enabled}%
                    653:   \fi
                    654:   \startsavinginserts
                    655:   %
                    656:   \setbox\groupbox = \vtop\bgroup
                    657:     % Do @comment since we are called inside an environment such as
                    658:     % @example, where each end-of-line in the input causes an
                    659:     % end-of-line in the output.  We don't want the end-of-line after
                    660:     % the `@group' to put extra space in the output.  Since @group
                    661:     % should appear on a line by itself (according to the Texinfo
                    662:     % manual), we don't worry about eating any user text.
                    663:     \comment
                    664: }
                    665: %
                    666: % The \vtop produces a box with normal height and large depth; thus, TeX puts
                    667: % \baselineskip glue before it, and (when the next line of text is done)
                    668: % \lineskip glue after it.  Thus, space below is not quite equal to space
                    669: % above.  But it's pretty close.
                    670: \def\Egroup{%
                    671:     % To get correct interline space between the last line of the group
                    672:     % and the first line afterwards, we have to propagate \prevdepth.
                    673:     \endgraf % Not \par, as it may have been set to \lisppar.
                    674:     \global\dimen1 = \prevdepth
                    675:   \egroup           % End the \vtop.
                    676:   % \dimen0 is the vertical size of the group's box.
                    677:   \dimen0 = \ht\groupbox  \advance\dimen0 by \dp\groupbox
                    678:   % \dimen2 is how much space is left on the page (more or less).
                    679:   \dimen2 = \pageheight   \advance\dimen2 by -\pagetotal
                    680:   % if the group doesn't fit on the current page, and it's a big big
                    681:   % group, force a page break.
                    682:   \ifdim \dimen0 > \dimen2
                    683:     \ifdim \pagetotal < \vfilllimit\pageheight
                    684:       \page
                    685:     \fi
                    686:   \fi
                    687:   \box\groupbox
                    688:   \prevdepth = \dimen1
                    689:   \checkinserts
                    690: }
                    691: %
                    692: % TeX puts in an \escapechar (i.e., `@') at the beginning of the help
                    693: % message, so this ends up printing `@group can only ...'.
                    694: %
                    695: \newhelp\groupinvalidhelp{%
                    696: group can only be used in environments such as @example,^^J%
                    697: where each line of input produces a line of output.}
                    698: 
                    699: % @need space-in-mils
                    700: % forces a page break if there is not space-in-mils remaining.
                    701: 
                    702: \newdimen\mil  \mil=0.001in
                    703: 
                    704: \parseargdef\need{%
                    705:   % Ensure vertical mode, so we don't make a big box in the middle of a
                    706:   % paragraph.
                    707:   \par
                    708:   %
                    709:   % If the @need value is less than one line space, it's useless.
                    710:   \dimen0 = #1\mil
                    711:   \dimen2 = \ht\strutbox
                    712:   \advance\dimen2 by \dp\strutbox
                    713:   \ifdim\dimen0 > \dimen2
                    714:     %
                    715:     % Do a \strut just to make the height of this box be normal, so the
                    716:     % normal leading is inserted relative to the preceding line.
                    717:     % And a page break here is fine.
                    718:     \vtop to #1\mil{\strut\vfil}%
                    719:     %
                    720:     % TeX does not even consider page breaks if a penalty added to the
                    721:     % main vertical list is 10000 or more.  But in order to see if the
                    722:     % empty box we just added fits on the page, we must make it consider
                    723:     % page breaks.  On the other hand, we don't want to actually break the
                    724:     % page after the empty box.  So we use a penalty of 9999.
                    725:     %
                    726:     % There is an extremely small chance that TeX will actually break the
                    727:     % page at this \penalty, if there are no other feasible breakpoints in
                    728:     % sight.  (If the user is using lots of big @group commands, which
                    729:     % almost-but-not-quite fill up a page, TeX will have a hard time doing
                    730:     % good page breaking, for example.)  However, I could not construct an
                    731:     % example where a page broke at this \penalty; if it happens in a real
                    732:     % document, then we can reconsider our strategy.
                    733:     \penalty9999
                    734:     %
                    735:     % Back up by the size of the box, whether we did a page break or not.
                    736:     \kern -#1\mil
                    737:     %
                    738:     % Do not allow a page break right after this kern.
                    739:     \nobreak
                    740:   \fi
                    741: }
                    742: 
                    743: % @br   forces paragraph break (and is undocumented).
                    744: 
                    745: \let\br = \par
                    746: 
                    747: % @page forces the start of a new page.
                    748: %
                    749: \def\page{\par\vfill\supereject}
                    750: 
                    751: % @exdent text....
                    752: % outputs text on separate line in roman font, starting at standard page margin
                    753: 
                    754: % This records the amount of indent in the innermost environment.
                    755: % That's how much \exdent should take out.
                    756: \newskip\exdentamount
                    757: 
                    758: % This defn is used inside fill environments such as @defun.
                    759: \parseargdef\exdent{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}
                    760: 
                    761: % This defn is used inside nofill environments such as @example.
                    762: \parseargdef\nofillexdent{{\advance \leftskip by -\exdentamount
                    763:   \leftline{\hskip\leftskip{\rm#1}}}}
                    764: 
                    765: % @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current
                    766: % paragraph.  For more general purposes, use the \margin insertion
1.1.1.2   misho     767: % class.  WHICH is `l' or `r'.  Not documented, written for gawk manual.
1.1       misho     768: %
                    769: \newskip\inmarginspacing \inmarginspacing=1cm
                    770: \def\strutdepth{\dp\strutbox}
                    771: %
                    772: \def\doinmargin#1#2{\strut\vadjust{%
                    773:   \nobreak
                    774:   \kern-\strutdepth
                    775:   \vtop to \strutdepth{%
                    776:     \baselineskip=\strutdepth
                    777:     \vss
                    778:     % if you have multiple lines of stuff to put here, you'll need to
                    779:     % make the vbox yourself of the appropriate size.
                    780:     \ifx#1l%
                    781:       \llap{\ignorespaces #2\hskip\inmarginspacing}%
                    782:     \else
                    783:       \rlap{\hskip\hsize \hskip\inmarginspacing \ignorespaces #2}%
                    784:     \fi
                    785:     \null
                    786:   }%
                    787: }}
                    788: \def\inleftmargin{\doinmargin l}
                    789: \def\inrightmargin{\doinmargin r}
                    790: %
                    791: % @inmargin{TEXT [, RIGHT-TEXT]}
                    792: % (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right;
                    793: % else use TEXT for both).
                    794: %
                    795: \def\inmargin#1{\parseinmargin #1,,\finish}
                    796: \def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing.
                    797:   \setbox0 = \hbox{\ignorespaces #2}%
                    798:   \ifdim\wd0 > 0pt
                    799:     \def\lefttext{#1}%  have both texts
                    800:     \def\righttext{#2}%
                    801:   \else
                    802:     \def\lefttext{#1}%  have only one text
                    803:     \def\righttext{#1}%
                    804:   \fi
                    805:   %
                    806:   \ifodd\pageno
                    807:     \def\temp{\inrightmargin\righttext}% odd page -> outside is right margin
                    808:   \else
                    809:     \def\temp{\inleftmargin\lefttext}%
                    810:   \fi
                    811:   \temp
                    812: }
                    813: 
1.1.1.2   misho     814: % @| inserts a changebar to the left of the current line.  It should
                    815: % surround any changed text.  This approach does *not* work if the
                    816: % change spans more than two lines of output.  To handle that, we would
                    817: % have adopt a much more difficult approach (putting marks into the main
                    818: % vertical list for the beginning and end of each change).  This command
                    819: % is not documented, not supported, and doesn't work.
                    820: %
                    821: \def\|{%
                    822:   % \vadjust can only be used in horizontal mode.
                    823:   \leavevmode
                    824:   %
                    825:   % Append this vertical mode material after the current line in the output.
                    826:   \vadjust{%
                    827:     % We want to insert a rule with the height and depth of the current
                    828:     % leading; that is exactly what \strutbox is supposed to record.
                    829:     \vskip-\baselineskip
                    830:     %
                    831:     % \vadjust-items are inserted at the left edge of the type.  So
                    832:     % the \llap here moves out into the left-hand margin.
                    833:     \llap{%
                    834:       %
                    835:       % For a thicker or thinner bar, change the `1pt'.
                    836:       \vrule height\baselineskip width1pt
                    837:       %
                    838:       % This is the space between the bar and the text.
                    839:       \hskip 12pt
                    840:     }%
                    841:   }%
                    842: }
                    843: 
1.1       misho     844: % @include FILE -- \input text of FILE.
                    845: %
                    846: \def\include{\parseargusing\filenamecatcodes\includezzz}
                    847: \def\includezzz#1{%
                    848:   \pushthisfilestack
                    849:   \def\thisfile{#1}%
                    850:   {%
                    851:     \makevalueexpandable  % we want to expand any @value in FILE.
                    852:     \turnoffactive        % and allow special characters in the expansion
                    853:     \indexnofonts         % Allow `@@' and other weird things in file names.
1.1.1.2   misho     854:     \wlog{texinfo.tex: doing @include of #1^^J}%
1.1       misho     855:     \edef\temp{\noexpand\input #1 }%
                    856:     %
                    857:     % This trickery is to read FILE outside of a group, in case it makes
                    858:     % definitions, etc.
                    859:     \expandafter
                    860:   }\temp
                    861:   \popthisfilestack
                    862: }
                    863: \def\filenamecatcodes{%
                    864:   \catcode`\\=\other
                    865:   \catcode`~=\other
                    866:   \catcode`^=\other
                    867:   \catcode`_=\other
                    868:   \catcode`|=\other
                    869:   \catcode`<=\other
                    870:   \catcode`>=\other
                    871:   \catcode`+=\other
                    872:   \catcode`-=\other
                    873:   \catcode`\`=\other
                    874:   \catcode`\'=\other
                    875: }
                    876: 
                    877: \def\pushthisfilestack{%
                    878:   \expandafter\pushthisfilestackX\popthisfilestack\StackTerm
                    879: }
                    880: \def\pushthisfilestackX{%
                    881:   \expandafter\pushthisfilestackY\thisfile\StackTerm
                    882: }
                    883: \def\pushthisfilestackY #1\StackTerm #2\StackTerm {%
                    884:   \gdef\popthisfilestack{\gdef\thisfile{#1}\gdef\popthisfilestack{#2}}%
                    885: }
                    886: 
                    887: \def\popthisfilestack{\errthisfilestackempty}
                    888: \def\errthisfilestackempty{\errmessage{Internal error:
                    889:   the stack of filenames is empty.}}
1.1.1.3 ! misho     890: %
1.1       misho     891: \def\thisfile{}
                    892: 
                    893: % @center line
                    894: % outputs that line, centered.
                    895: %
                    896: \parseargdef\center{%
                    897:   \ifhmode
1.1.1.3 ! misho     898:     \let\centersub\centerH
1.1       misho     899:   \else
1.1.1.3 ! misho     900:     \let\centersub\centerV
1.1       misho     901:   \fi
1.1.1.3 ! misho     902:   \centersub{\hfil \ignorespaces#1\unskip \hfil}%
        !           903:   \let\centersub\relax % don't let the definition persist, just in case
1.1       misho     904: }
1.1.1.3 ! misho     905: \def\centerH#1{{%
        !           906:   \hfil\break
        !           907:   \advance\hsize by -\leftskip
        !           908:   \advance\hsize by -\rightskip
        !           909:   \line{#1}%
        !           910:   \break
        !           911: }}
        !           912: %
        !           913: \newcount\centerpenalty
        !           914: \def\centerV#1{%
        !           915:   % The idea here is the same as in \startdefun, \cartouche, etc.: if
        !           916:   % @center is the first thing after a section heading, we need to wipe
        !           917:   % out the negative parskip inserted by \sectionheading, but still
        !           918:   % prevent a page break here.
        !           919:   \centerpenalty = \lastpenalty
        !           920:   \ifnum\centerpenalty>10000 \vskip\parskip \fi
        !           921:   \ifnum\centerpenalty>9999 \penalty\centerpenalty \fi
        !           922:   \line{\kern\leftskip #1\kern\rightskip}%
1.1       misho     923: }
                    924: 
                    925: % @sp n   outputs n lines of vertical space
1.1.1.3 ! misho     926: %
1.1       misho     927: \parseargdef\sp{\vskip #1\baselineskip}
                    928: 
                    929: % @comment ...line which is ignored...
                    930: % @c is the same as @comment
                    931: % @ignore ... @end ignore  is another way to write a comment
1.1.1.3 ! misho     932: %
1.1       misho     933: \def\comment{\begingroup \catcode`\^^M=\other%
                    934: \catcode`\@=\other \catcode`\{=\other \catcode`\}=\other%
                    935: \commentxxx}
                    936: {\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}}
1.1.1.3 ! misho     937: %
1.1       misho     938: \let\c=\comment
                    939: 
                    940: % @paragraphindent NCHARS
                    941: % We'll use ems for NCHARS, close enough.
                    942: % NCHARS can also be the word `asis' or `none'.
                    943: % We cannot feasibly implement @paragraphindent asis, though.
                    944: %
                    945: \def\asisword{asis} % no translation, these are keywords
                    946: \def\noneword{none}
                    947: %
                    948: \parseargdef\paragraphindent{%
                    949:   \def\temp{#1}%
                    950:   \ifx\temp\asisword
                    951:   \else
                    952:     \ifx\temp\noneword
                    953:       \defaultparindent = 0pt
                    954:     \else
                    955:       \defaultparindent = #1em
                    956:     \fi
                    957:   \fi
                    958:   \parindent = \defaultparindent
                    959: }
                    960: 
                    961: % @exampleindent NCHARS
                    962: % We'll use ems for NCHARS like @paragraphindent.
                    963: % It seems @exampleindent asis isn't necessary, but
                    964: % I preserve it to make it similar to @paragraphindent.
                    965: \parseargdef\exampleindent{%
                    966:   \def\temp{#1}%
                    967:   \ifx\temp\asisword
                    968:   \else
                    969:     \ifx\temp\noneword
                    970:       \lispnarrowing = 0pt
                    971:     \else
                    972:       \lispnarrowing = #1em
                    973:     \fi
                    974:   \fi
                    975: }
                    976: 
                    977: % @firstparagraphindent WORD
                    978: % If WORD is `none', then suppress indentation of the first paragraph
                    979: % after a section heading.  If WORD is `insert', then do indent at such
                    980: % paragraphs.
                    981: %
                    982: % The paragraph indentation is suppressed or not by calling
                    983: % \suppressfirstparagraphindent, which the sectioning commands do.
                    984: % We switch the definition of this back and forth according to WORD.
                    985: % By default, we suppress indentation.
                    986: %
                    987: \def\suppressfirstparagraphindent{\dosuppressfirstparagraphindent}
                    988: \def\insertword{insert}
                    989: %
                    990: \parseargdef\firstparagraphindent{%
                    991:   \def\temp{#1}%
                    992:   \ifx\temp\noneword
                    993:     \let\suppressfirstparagraphindent = \dosuppressfirstparagraphindent
                    994:   \else\ifx\temp\insertword
                    995:     \let\suppressfirstparagraphindent = \relax
                    996:   \else
                    997:     \errhelp = \EMsimple
                    998:     \errmessage{Unknown @firstparagraphindent option `\temp'}%
                    999:   \fi\fi
                   1000: }
                   1001: 
                   1002: % Here is how we actually suppress indentation.  Redefine \everypar to
                   1003: % \kern backwards by \parindent, and then reset itself to empty.
                   1004: %
                   1005: % We also make \indent itself not actually do anything until the next
                   1006: % paragraph.
                   1007: %
                   1008: \gdef\dosuppressfirstparagraphindent{%
                   1009:   \gdef\indent{%
                   1010:     \restorefirstparagraphindent
                   1011:     \indent
                   1012:   }%
                   1013:   \gdef\noindent{%
                   1014:     \restorefirstparagraphindent
                   1015:     \noindent
                   1016:   }%
                   1017:   \global\everypar = {%
                   1018:     \kern -\parindent
                   1019:     \restorefirstparagraphindent
                   1020:   }%
                   1021: }
                   1022: 
                   1023: \gdef\restorefirstparagraphindent{%
                   1024:   \global \let \indent = \ptexindent
                   1025:   \global \let \noindent = \ptexnoindent
                   1026:   \global \everypar = {}%
                   1027: }
                   1028: 
                   1029: 
                   1030: % @refill is a no-op.
                   1031: \let\refill=\relax
                   1032: 
                   1033: % If working on a large document in chapters, it is convenient to
                   1034: % be able to disable indexing, cross-referencing, and contents, for test runs.
                   1035: % This is done with @novalidate (before @setfilename).
                   1036: %
                   1037: \newif\iflinks \linkstrue % by default we want the aux files.
                   1038: \let\novalidate = \linksfalse
                   1039: 
                   1040: % @setfilename is done at the beginning of every texinfo file.
                   1041: % So open here the files we need to have open while reading the input.
                   1042: % This makes it possible to make a .fmt file for texinfo.
                   1043: \def\setfilename{%
                   1044:    \fixbackslash  % Turn off hack to swallow `\input texinfo'.
                   1045:    \iflinks
                   1046:      \tryauxfile
                   1047:      % Open the new aux file.  TeX will close it automatically at exit.
                   1048:      \immediate\openout\auxfile=\jobname.aux
                   1049:    \fi % \openindices needs to do some work in any case.
                   1050:    \openindices
                   1051:    \let\setfilename=\comment % Ignore extra @setfilename cmds.
                   1052:    %
                   1053:    % If texinfo.cnf is present on the system, read it.
                   1054:    % Useful for site-wide @afourpaper, etc.
                   1055:    \openin 1 texinfo.cnf
                   1056:    \ifeof 1 \else \input texinfo.cnf \fi
                   1057:    \closein 1
                   1058:    %
                   1059:    \comment % Ignore the actual filename.
                   1060: }
                   1061: 
                   1062: % Called from \setfilename.
                   1063: %
                   1064: \def\openindices{%
                   1065:   \newindex{cp}%
                   1066:   \newcodeindex{fn}%
                   1067:   \newcodeindex{vr}%
                   1068:   \newcodeindex{tp}%
                   1069:   \newcodeindex{ky}%
                   1070:   \newcodeindex{pg}%
                   1071: }
                   1072: 
                   1073: % @bye.
                   1074: \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
                   1075: 
                   1076: 
                   1077: \message{pdf,}
                   1078: % adobe `portable' document format
                   1079: \newcount\tempnum
                   1080: \newcount\lnkcount
                   1081: \newtoks\filename
                   1082: \newcount\filenamelength
                   1083: \newcount\pgn
                   1084: \newtoks\toksA
                   1085: \newtoks\toksB
                   1086: \newtoks\toksC
                   1087: \newtoks\toksD
                   1088: \newbox\boxA
                   1089: \newcount\countA
                   1090: \newif\ifpdf
                   1091: \newif\ifpdfmakepagedest
                   1092: 
                   1093: % when pdftex is run in dvi mode, \pdfoutput is defined (so \pdfoutput=1
1.1.1.2   misho    1094: % can be set).  So we test for \relax and 0 as well as being undefined.
                   1095: \ifx\pdfoutput\thisisundefined
1.1       misho    1096: \else
                   1097:   \ifx\pdfoutput\relax
                   1098:   \else
                   1099:     \ifcase\pdfoutput
                   1100:     \else
                   1101:       \pdftrue
                   1102:     \fi
                   1103:   \fi
                   1104: \fi
                   1105: 
                   1106: % PDF uses PostScript string constants for the names of xref targets,
                   1107: % for display in the outlines, and in other places.  Thus, we have to
                   1108: % double any backslashes.  Otherwise, a name like "\node" will be
                   1109: % interpreted as a newline (\n), followed by o, d, e.  Not good.
1.1.1.3 ! misho    1110: % 
        !          1111: % See http://www.ntg.nl/pipermail/ntg-pdftex/2004-July/000654.html and
        !          1112: % related messages.  The final outcome is that it is up to the TeX user
        !          1113: % to double the backslashes and otherwise make the string valid, so
        !          1114: % that's what we do.  pdftex 1.30.0 (ca.2005) introduced a primitive to
        !          1115: % do this reliably, so we use it.
        !          1116: 
        !          1117: % #1 is a control sequence in which to do the replacements,
        !          1118: % which we \xdef.
        !          1119: \def\txiescapepdf#1{%
        !          1120:   \ifx\pdfescapestring\relax
        !          1121:     % No primitive available; should we give a warning or log?
        !          1122:     % Many times it won't matter.
        !          1123:   \else
        !          1124:     % The expandable \pdfescapestring primitive escapes parentheses,
        !          1125:     % backslashes, and other special chars.
        !          1126:     \xdef#1{\pdfescapestring{#1}}%
        !          1127:   \fi
1.1       misho    1128: }
                   1129: 
                   1130: \newhelp\nopdfimagehelp{Texinfo supports .png, .jpg, .jpeg, and .pdf images
                   1131: with PDF output, and none of those formats could be found.  (.eps cannot
                   1132: be supported due to the design of the PDF format; use regular TeX (DVI
                   1133: output) for that.)}
                   1134: 
                   1135: \ifpdf
                   1136:   %
                   1137:   % Color manipulation macros based on pdfcolor.tex,
                   1138:   % except using rgb instead of cmyk; the latter is said to render as a
                   1139:   % very dark gray on-screen and a very dark halftone in print, instead
                   1140:   % of actual black.
                   1141:   \def\rgbDarkRed{0.50 0.09 0.12}
                   1142:   \def\rgbBlack{0 0 0}
                   1143:   %
                   1144:   % k sets the color for filling (usual text, etc.);
                   1145:   % K sets the color for stroking (thin rules, e.g., normal _'s).
                   1146:   \def\pdfsetcolor#1{\pdfliteral{#1 rg  #1 RG}}
                   1147:   %
                   1148:   % Set color, and create a mark which defines \thiscolor accordingly,
                   1149:   % so that \makeheadline knows which color to restore.
                   1150:   \def\setcolor#1{%
                   1151:     \xdef\lastcolordefs{\gdef\noexpand\thiscolor{#1}}%
                   1152:     \domark
                   1153:     \pdfsetcolor{#1}%
                   1154:   }
                   1155:   %
                   1156:   \def\maincolor{\rgbBlack}
                   1157:   \pdfsetcolor{\maincolor}
                   1158:   \edef\thiscolor{\maincolor}
                   1159:   \def\lastcolordefs{}
                   1160:   %
                   1161:   \def\makefootline{%
                   1162:     \baselineskip24pt
                   1163:     \line{\pdfsetcolor{\maincolor}\the\footline}%
                   1164:   }
                   1165:   %
                   1166:   \def\makeheadline{%
                   1167:     \vbox to 0pt{%
                   1168:       \vskip-22.5pt
                   1169:       \line{%
                   1170:         \vbox to8.5pt{}%
                   1171:         % Extract \thiscolor definition from the marks.
                   1172:         \getcolormarks
                   1173:         % Typeset the headline with \maincolor, then restore the color.
                   1174:         \pdfsetcolor{\maincolor}\the\headline\pdfsetcolor{\thiscolor}%
                   1175:       }%
                   1176:       \vss
                   1177:     }%
                   1178:     \nointerlineskip
                   1179:   }
                   1180:   %
                   1181:   %
                   1182:   \pdfcatalog{/PageMode /UseOutlines}
                   1183:   %
                   1184:   % #1 is image name, #2 width (might be empty/whitespace), #3 height (ditto).
                   1185:   \def\dopdfimage#1#2#3{%
1.1.1.3 ! misho    1186:     \def\pdfimagewidth{#2}\setbox0 = \hbox{\ignorespaces #2}%
        !          1187:     \def\pdfimageheight{#3}\setbox2 = \hbox{\ignorespaces #3}%
1.1       misho    1188:     %
1.1.1.2   misho    1189:     % pdftex (and the PDF format) support .pdf, .png, .jpg (among
                   1190:     % others).  Let's try in that order, PDF first since if
                   1191:     % someone has a scalable image, presumably better to use that than a
                   1192:     % bitmap.
1.1       misho    1193:     \let\pdfimgext=\empty
                   1194:     \begingroup
1.1.1.2   misho    1195:       \openin 1 #1.pdf \ifeof 1
                   1196:         \openin 1 #1.PDF \ifeof 1
                   1197:           \openin 1 #1.png \ifeof 1
                   1198:             \openin 1 #1.jpg \ifeof 1
                   1199:               \openin 1 #1.jpeg \ifeof 1
                   1200:                 \openin 1 #1.JPG \ifeof 1
1.1       misho    1201:                   \errhelp = \nopdfimagehelp
                   1202:                   \errmessage{Could not find image file #1 for pdf}%
1.1.1.2   misho    1203:                 \else \gdef\pdfimgext{JPG}%
1.1       misho    1204:                 \fi
1.1.1.2   misho    1205:               \else \gdef\pdfimgext{jpeg}%
1.1       misho    1206:               \fi
1.1.1.2   misho    1207:             \else \gdef\pdfimgext{jpg}%
1.1       misho    1208:             \fi
1.1.1.2   misho    1209:           \else \gdef\pdfimgext{png}%
1.1       misho    1210:           \fi
1.1.1.2   misho    1211:         \else \gdef\pdfimgext{PDF}%
1.1       misho    1212:         \fi
1.1.1.2   misho    1213:       \else \gdef\pdfimgext{pdf}%
1.1       misho    1214:       \fi
                   1215:       \closein 1
                   1216:     \endgroup
                   1217:     %
                   1218:     % without \immediate, ancient pdftex seg faults when the same image is
                   1219:     % included twice.  (Version 3.14159-pre-1.0-unofficial-20010704.)
                   1220:     \ifnum\pdftexversion < 14
                   1221:       \immediate\pdfimage
                   1222:     \else
                   1223:       \immediate\pdfximage
                   1224:     \fi
1.1.1.3 ! misho    1225:       \ifdim \wd0 >0pt width \pdfimagewidth \fi
        !          1226:       \ifdim \wd2 >0pt height \pdfimageheight \fi
1.1       misho    1227:       \ifnum\pdftexversion<13
                   1228:          #1.\pdfimgext
                   1229:        \else
                   1230:          {#1.\pdfimgext}%
                   1231:        \fi
                   1232:     \ifnum\pdftexversion < 14 \else
                   1233:       \pdfrefximage \pdflastximage
                   1234:     \fi}
                   1235:   %
                   1236:   \def\pdfmkdest#1{{%
                   1237:     % We have to set dummies so commands such as @code, and characters
                   1238:     % such as \, aren't expanded when present in a section title.
                   1239:     \indexnofonts
                   1240:     \turnoffactive
                   1241:     \makevalueexpandable
                   1242:     \def\pdfdestname{#1}%
1.1.1.3 ! misho    1243:     \txiescapepdf\pdfdestname
1.1       misho    1244:     \safewhatsit{\pdfdest name{\pdfdestname} xyz}%
                   1245:   }}
                   1246:   %
                   1247:   % used to mark target names; must be expandable.
                   1248:   \def\pdfmkpgn#1{#1}
                   1249:   %
                   1250:   % by default, use a color that is dark enough to print on paper as
                   1251:   % nearly black, but still distinguishable for online viewing.
                   1252:   \def\urlcolor{\rgbDarkRed}
                   1253:   \def\linkcolor{\rgbDarkRed}
                   1254:   \def\endlink{\setcolor{\maincolor}\pdfendlink}
                   1255:   %
                   1256:   % Adding outlines to PDF; macros for calculating structure of outlines
                   1257:   % come from Petr Olsak
                   1258:   \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0%
                   1259:     \else \csname#1\endcsname \fi}
                   1260:   \def\advancenumber#1{\tempnum=\expnumber{#1}\relax
                   1261:     \advance\tempnum by 1
                   1262:     \expandafter\xdef\csname#1\endcsname{\the\tempnum}}
                   1263:   %
                   1264:   % #1 is the section text, which is what will be displayed in the
                   1265:   % outline by the pdf viewer.  #2 is the pdf expression for the number
                   1266:   % of subentries (or empty, for subsubsections).  #3 is the node text,
                   1267:   % which might be empty if this toc entry had no corresponding node.
                   1268:   % #4 is the page number
                   1269:   %
                   1270:   \def\dopdfoutline#1#2#3#4{%
                   1271:     % Generate a link to the node text if that exists; else, use the
                   1272:     % page number.  We could generate a destination for the section
                   1273:     % text in the case where a section has no node, but it doesn't
                   1274:     % seem worth the trouble, since most documents are normally structured.
1.1.1.3 ! misho    1275:     \edef\pdfoutlinedest{#3}%
1.1       misho    1276:     \ifx\pdfoutlinedest\empty
                   1277:       \def\pdfoutlinedest{#4}%
                   1278:     \else
1.1.1.3 ! misho    1279:       \txiescapepdf\pdfoutlinedest
1.1       misho    1280:     \fi
                   1281:     %
1.1.1.3 ! misho    1282:     % Also escape PDF chars in the display string.
        !          1283:     \edef\pdfoutlinetext{#1}%
        !          1284:     \txiescapepdf\pdfoutlinetext
1.1       misho    1285:     %
                   1286:     \pdfoutline goto name{\pdfmkpgn{\pdfoutlinedest}}#2{\pdfoutlinetext}%
                   1287:   }
                   1288:   %
                   1289:   \def\pdfmakeoutlines{%
                   1290:     \begingroup
                   1291:       % Read toc silently, to get counts of subentries for \pdfoutline.
1.1.1.2   misho    1292:       \def\partentry##1##2##3##4{}% ignore parts in the outlines
1.1       misho    1293:       \def\numchapentry##1##2##3##4{%
                   1294:        \def\thischapnum{##2}%
                   1295:        \def\thissecnum{0}%
                   1296:        \def\thissubsecnum{0}%
                   1297:       }%
                   1298:       \def\numsecentry##1##2##3##4{%
                   1299:        \advancenumber{chap\thischapnum}%
                   1300:        \def\thissecnum{##2}%
                   1301:        \def\thissubsecnum{0}%
                   1302:       }%
                   1303:       \def\numsubsecentry##1##2##3##4{%
                   1304:        \advancenumber{sec\thissecnum}%
                   1305:        \def\thissubsecnum{##2}%
                   1306:       }%
                   1307:       \def\numsubsubsecentry##1##2##3##4{%
                   1308:        \advancenumber{subsec\thissubsecnum}%
                   1309:       }%
                   1310:       \def\thischapnum{0}%
                   1311:       \def\thissecnum{0}%
                   1312:       \def\thissubsecnum{0}%
                   1313:       %
                   1314:       % use \def rather than \let here because we redefine \chapentry et
                   1315:       % al. a second time, below.
                   1316:       \def\appentry{\numchapentry}%
                   1317:       \def\appsecentry{\numsecentry}%
                   1318:       \def\appsubsecentry{\numsubsecentry}%
                   1319:       \def\appsubsubsecentry{\numsubsubsecentry}%
                   1320:       \def\unnchapentry{\numchapentry}%
                   1321:       \def\unnsecentry{\numsecentry}%
                   1322:       \def\unnsubsecentry{\numsubsecentry}%
                   1323:       \def\unnsubsubsecentry{\numsubsubsecentry}%
                   1324:       \readdatafile{toc}%
                   1325:       %
                   1326:       % Read toc second time, this time actually producing the outlines.
                   1327:       % The `-' means take the \expnumber as the absolute number of
                   1328:       % subentries, which we calculated on our first read of the .toc above.
                   1329:       %
                   1330:       % We use the node names as the destinations.
                   1331:       \def\numchapentry##1##2##3##4{%
                   1332:         \dopdfoutline{##1}{count-\expnumber{chap##2}}{##3}{##4}}%
                   1333:       \def\numsecentry##1##2##3##4{%
                   1334:         \dopdfoutline{##1}{count-\expnumber{sec##2}}{##3}{##4}}%
                   1335:       \def\numsubsecentry##1##2##3##4{%
                   1336:         \dopdfoutline{##1}{count-\expnumber{subsec##2}}{##3}{##4}}%
                   1337:       \def\numsubsubsecentry##1##2##3##4{% count is always zero
                   1338:         \dopdfoutline{##1}{}{##3}{##4}}%
                   1339:       %
                   1340:       % PDF outlines are displayed using system fonts, instead of
                   1341:       % document fonts.  Therefore we cannot use special characters,
                   1342:       % since the encoding is unknown.  For example, the eogonek from
                   1343:       % Latin 2 (0xea) gets translated to a | character.  Info from
                   1344:       % Staszek Wawrykiewicz, 19 Jan 2004 04:09:24 +0100.
                   1345:       %
1.1.1.3 ! misho    1346:       % TODO this right, we have to translate 8-bit characters to
        !          1347:       % their "best" equivalent, based on the @documentencoding.  Too
        !          1348:       % much work for too little return.  Just use the ASCII equivalents
        !          1349:       % we use for the index sort strings.
        !          1350:       % 
1.1       misho    1351:       \indexnofonts
                   1352:       \setupdatafile
1.1.1.3 ! misho    1353:       % We can have normal brace characters in the PDF outlines, unlike
        !          1354:       % Texinfo index files.  So set that up.
        !          1355:       \def\{{\lbracecharliteral}%
        !          1356:       \def\}{\rbracecharliteral}%
1.1       misho    1357:       \catcode`\\=\active \otherbackslash
                   1358:       \input \tocreadfilename
                   1359:     \endgroup
                   1360:   }
1.1.1.3 ! misho    1361:   {\catcode`[=1 \catcode`]=2
        !          1362:    \catcode`{=\other \catcode`}=\other
        !          1363:    \gdef\lbracecharliteral[{]%
        !          1364:    \gdef\rbracecharliteral[}]%
        !          1365:   ]
1.1       misho    1366:   %
                   1367:   \def\skipspaces#1{\def\PP{#1}\def\D{|}%
                   1368:     \ifx\PP\D\let\nextsp\relax
                   1369:     \else\let\nextsp\skipspaces
                   1370:       \ifx\p\space\else\addtokens{\filename}{\PP}%
                   1371:         \advance\filenamelength by 1
                   1372:       \fi
                   1373:     \fi
                   1374:     \nextsp}
1.1.1.3 ! misho    1375:   \def\getfilename#1{%
        !          1376:     \filenamelength=0
        !          1377:     % If we don't expand the argument now, \skipspaces will get
        !          1378:     % snagged on things like "@value{foo}".
        !          1379:     \edef\temp{#1}%
        !          1380:     \expandafter\skipspaces\temp|\relax
        !          1381:   }
1.1       misho    1382:   \ifnum\pdftexversion < 14
                   1383:     \let \startlink \pdfannotlink
                   1384:   \else
                   1385:     \let \startlink \pdfstartlink
                   1386:   \fi
                   1387:   % make a live url in pdf output.
                   1388:   \def\pdfurl#1{%
                   1389:     \begingroup
                   1390:       % it seems we really need yet another set of dummies; have not
                   1391:       % tried to figure out what each command should do in the context
                   1392:       % of @url.  for now, just make @/ a no-op, that's the only one
                   1393:       % people have actually reported a problem with.
                   1394:       %
                   1395:       \normalturnoffactive
                   1396:       \def\@{@}%
                   1397:       \let\/=\empty
                   1398:       \makevalueexpandable
                   1399:       % do we want to go so far as to use \indexnofonts instead of just
                   1400:       % special-casing \var here?
                   1401:       \def\var##1{##1}%
                   1402:       %
                   1403:       \leavevmode\setcolor{\urlcolor}%
                   1404:       \startlink attr{/Border [0 0 0]}%
                   1405:         user{/Subtype /Link /A << /S /URI /URI (#1) >>}%
                   1406:     \endgroup}
                   1407:   \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}}
                   1408:   \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
                   1409:   \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks}
                   1410:   \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}}
                   1411:   \def\maketoks{%
                   1412:     \expandafter\poptoks\the\toksA|ENDTOKS|\relax
                   1413:     \ifx\first0\adn0
                   1414:     \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3
                   1415:     \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6
                   1416:     \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9
                   1417:     \else
                   1418:       \ifnum0=\countA\else\makelink\fi
                   1419:       \ifx\first.\let\next=\done\else
                   1420:         \let\next=\maketoks
                   1421:         \addtokens{\toksB}{\the\toksD}
                   1422:         \ifx\first,\addtokens{\toksB}{\space}\fi
                   1423:       \fi
                   1424:     \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
                   1425:     \next}
                   1426:   \def\makelink{\addtokens{\toksB}%
                   1427:     {\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
                   1428:   \def\pdflink#1{%
                   1429:     \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}}
                   1430:     \setcolor{\linkcolor}#1\endlink}
                   1431:   \def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
                   1432: \else
                   1433:   % non-pdf mode
                   1434:   \let\pdfmkdest = \gobble
                   1435:   \let\pdfurl = \gobble
                   1436:   \let\endlink = \relax
                   1437:   \let\setcolor = \gobble
                   1438:   \let\pdfsetcolor = \gobble
                   1439:   \let\pdfmakeoutlines = \relax
                   1440: \fi  % \ifx\pdfoutput
                   1441: 
                   1442: 
                   1443: \message{fonts,}
                   1444: 
                   1445: % Change the current font style to #1, remembering it in \curfontstyle.
                   1446: % For now, we do not accumulate font styles: @b{@i{foo}} prints foo in
                   1447: % italics, not bold italics.
                   1448: %
                   1449: \def\setfontstyle#1{%
                   1450:   \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd.
                   1451:   \csname ten#1\endcsname  % change the current font
                   1452: }
                   1453: 
                   1454: % Select #1 fonts with the current style.
                   1455: %
                   1456: \def\selectfonts#1{\csname #1fonts\endcsname \csname\curfontstyle\endcsname}
                   1457: 
                   1458: \def\rm{\fam=0 \setfontstyle{rm}}
                   1459: \def\it{\fam=\itfam \setfontstyle{it}}
                   1460: \def\sl{\fam=\slfam \setfontstyle{sl}}
                   1461: \def\bf{\fam=\bffam \setfontstyle{bf}}\def\bfstylename{bf}
                   1462: \def\tt{\fam=\ttfam \setfontstyle{tt}}
                   1463: 
                   1464: % Unfortunately, we have to override this for titles and the like, since
                   1465: % in those cases "rm" is bold.  Sigh.
                   1466: \def\rmisbold{\rm\def\curfontstyle{bf}}
                   1467: 
                   1468: % Texinfo sort of supports the sans serif font style, which plain TeX does not.
                   1469: % So we set up a \sf.
                   1470: \newfam\sffam
                   1471: \def\sf{\fam=\sffam \setfontstyle{sf}}
                   1472: \let\li = \sf % Sometimes we call it \li, not \sf.
                   1473: 
                   1474: % We don't need math for this font style.
                   1475: \def\ttsl{\setfontstyle{ttsl}}
                   1476: 
                   1477: 
                   1478: % Default leading.
                   1479: \newdimen\textleading  \textleading = 13.2pt
                   1480: 
                   1481: % Set the baselineskip to #1, and the lineskip and strut size
                   1482: % correspondingly.  There is no deep meaning behind these magic numbers
                   1483: % used as factors; they just match (closely enough) what Knuth defined.
                   1484: %
                   1485: \def\lineskipfactor{.08333}
                   1486: \def\strutheightpercent{.70833}
                   1487: \def\strutdepthpercent {.29167}
                   1488: %
                   1489: % can get a sort of poor man's double spacing by redefining this.
                   1490: \def\baselinefactor{1}
                   1491: %
                   1492: \def\setleading#1{%
                   1493:   \dimen0 = #1\relax
                   1494:   \normalbaselineskip = \baselinefactor\dimen0
                   1495:   \normallineskip = \lineskipfactor\normalbaselineskip
                   1496:   \normalbaselines
                   1497:   \setbox\strutbox =\hbox{%
                   1498:     \vrule width0pt height\strutheightpercent\baselineskip
                   1499:                     depth \strutdepthpercent \baselineskip
                   1500:   }%
                   1501: }
                   1502: 
                   1503: % PDF CMaps.  See also LaTeX's t1.cmap.
                   1504: %
                   1505: % do nothing with this by default.
                   1506: \expandafter\let\csname cmapOT1\endcsname\gobble
                   1507: \expandafter\let\csname cmapOT1IT\endcsname\gobble
                   1508: \expandafter\let\csname cmapOT1TT\endcsname\gobble
                   1509: 
                   1510: % if we are producing pdf, and we have \pdffontattr, then define cmaps.
                   1511: % (\pdffontattr was introduced many years ago, but people still run
                   1512: % older pdftex's; it's easy to conditionalize, so we do.)
1.1.1.2   misho    1513: \ifpdf \ifx\pdffontattr\thisisundefined \else
1.1       misho    1514:   \begingroup
                   1515:     \catcode`\^^M=\active \def^^M{^^J}% Output line endings as the ^^J char.
                   1516:     \catcode`\%=12 \immediate\pdfobj stream {%!PS-Adobe-3.0 Resource-CMap
                   1517: %%DocumentNeededResources: ProcSet (CIDInit)
                   1518: %%IncludeResource: ProcSet (CIDInit)
                   1519: %%BeginResource: CMap (TeX-OT1-0)
                   1520: %%Title: (TeX-OT1-0 TeX OT1 0)
                   1521: %%Version: 1.000
                   1522: %%EndComments
                   1523: /CIDInit /ProcSet findresource begin
                   1524: 12 dict begin
                   1525: begincmap
                   1526: /CIDSystemInfo
                   1527: << /Registry (TeX)
                   1528: /Ordering (OT1)
                   1529: /Supplement 0
                   1530: >> def
                   1531: /CMapName /TeX-OT1-0 def
                   1532: /CMapType 2 def
                   1533: 1 begincodespacerange
                   1534: <00> <7F>
                   1535: endcodespacerange
                   1536: 8 beginbfrange
                   1537: <00> <01> <0393>
                   1538: <09> <0A> <03A8>
                   1539: <23> <26> <0023>
                   1540: <28> <3B> <0028>
                   1541: <3F> <5B> <003F>
                   1542: <5D> <5E> <005D>
                   1543: <61> <7A> <0061>
                   1544: <7B> <7C> <2013>
                   1545: endbfrange
                   1546: 40 beginbfchar
                   1547: <02> <0398>
                   1548: <03> <039B>
                   1549: <04> <039E>
                   1550: <05> <03A0>
                   1551: <06> <03A3>
                   1552: <07> <03D2>
                   1553: <08> <03A6>
                   1554: <0B> <00660066>
                   1555: <0C> <00660069>
                   1556: <0D> <0066006C>
                   1557: <0E> <006600660069>
                   1558: <0F> <00660066006C>
                   1559: <10> <0131>
                   1560: <11> <0237>
                   1561: <12> <0060>
                   1562: <13> <00B4>
                   1563: <14> <02C7>
                   1564: <15> <02D8>
                   1565: <16> <00AF>
                   1566: <17> <02DA>
                   1567: <18> <00B8>
                   1568: <19> <00DF>
                   1569: <1A> <00E6>
                   1570: <1B> <0153>
                   1571: <1C> <00F8>
                   1572: <1D> <00C6>
                   1573: <1E> <0152>
                   1574: <1F> <00D8>
                   1575: <21> <0021>
                   1576: <22> <201D>
                   1577: <27> <2019>
                   1578: <3C> <00A1>
                   1579: <3D> <003D>
                   1580: <3E> <00BF>
                   1581: <5C> <201C>
                   1582: <5F> <02D9>
                   1583: <60> <2018>
                   1584: <7D> <02DD>
                   1585: <7E> <007E>
                   1586: <7F> <00A8>
                   1587: endbfchar
                   1588: endcmap
                   1589: CMapName currentdict /CMap defineresource pop
                   1590: end
                   1591: end
                   1592: %%EndResource
                   1593: %%EOF
                   1594:     }\endgroup
                   1595:   \expandafter\edef\csname cmapOT1\endcsname#1{%
                   1596:     \pdffontattr#1{/ToUnicode \the\pdflastobj\space 0 R}%
                   1597:   }%
                   1598: %
                   1599: % \cmapOT1IT
                   1600:   \begingroup
                   1601:     \catcode`\^^M=\active \def^^M{^^J}% Output line endings as the ^^J char.
                   1602:     \catcode`\%=12 \immediate\pdfobj stream {%!PS-Adobe-3.0 Resource-CMap
                   1603: %%DocumentNeededResources: ProcSet (CIDInit)
                   1604: %%IncludeResource: ProcSet (CIDInit)
                   1605: %%BeginResource: CMap (TeX-OT1IT-0)
                   1606: %%Title: (TeX-OT1IT-0 TeX OT1IT 0)
                   1607: %%Version: 1.000
                   1608: %%EndComments
                   1609: /CIDInit /ProcSet findresource begin
                   1610: 12 dict begin
                   1611: begincmap
                   1612: /CIDSystemInfo
                   1613: << /Registry (TeX)
                   1614: /Ordering (OT1IT)
                   1615: /Supplement 0
                   1616: >> def
                   1617: /CMapName /TeX-OT1IT-0 def
                   1618: /CMapType 2 def
                   1619: 1 begincodespacerange
                   1620: <00> <7F>
                   1621: endcodespacerange
                   1622: 8 beginbfrange
                   1623: <00> <01> <0393>
                   1624: <09> <0A> <03A8>
                   1625: <25> <26> <0025>
                   1626: <28> <3B> <0028>
                   1627: <3F> <5B> <003F>
                   1628: <5D> <5E> <005D>
                   1629: <61> <7A> <0061>
                   1630: <7B> <7C> <2013>
                   1631: endbfrange
                   1632: 42 beginbfchar
                   1633: <02> <0398>
                   1634: <03> <039B>
                   1635: <04> <039E>
                   1636: <05> <03A0>
                   1637: <06> <03A3>
                   1638: <07> <03D2>
                   1639: <08> <03A6>
                   1640: <0B> <00660066>
                   1641: <0C> <00660069>
                   1642: <0D> <0066006C>
                   1643: <0E> <006600660069>
                   1644: <0F> <00660066006C>
                   1645: <10> <0131>
                   1646: <11> <0237>
                   1647: <12> <0060>
                   1648: <13> <00B4>
                   1649: <14> <02C7>
                   1650: <15> <02D8>
                   1651: <16> <00AF>
                   1652: <17> <02DA>
                   1653: <18> <00B8>
                   1654: <19> <00DF>
                   1655: <1A> <00E6>
                   1656: <1B> <0153>
                   1657: <1C> <00F8>
                   1658: <1D> <00C6>
                   1659: <1E> <0152>
                   1660: <1F> <00D8>
                   1661: <21> <0021>
                   1662: <22> <201D>
                   1663: <23> <0023>
                   1664: <24> <00A3>
                   1665: <27> <2019>
                   1666: <3C> <00A1>
                   1667: <3D> <003D>
                   1668: <3E> <00BF>
                   1669: <5C> <201C>
                   1670: <5F> <02D9>
                   1671: <60> <2018>
                   1672: <7D> <02DD>
                   1673: <7E> <007E>
                   1674: <7F> <00A8>
                   1675: endbfchar
                   1676: endcmap
                   1677: CMapName currentdict /CMap defineresource pop
                   1678: end
                   1679: end
                   1680: %%EndResource
                   1681: %%EOF
                   1682:     }\endgroup
                   1683:   \expandafter\edef\csname cmapOT1IT\endcsname#1{%
                   1684:     \pdffontattr#1{/ToUnicode \the\pdflastobj\space 0 R}%
                   1685:   }%
                   1686: %
                   1687: % \cmapOT1TT
                   1688:   \begingroup
                   1689:     \catcode`\^^M=\active \def^^M{^^J}% Output line endings as the ^^J char.
                   1690:     \catcode`\%=12 \immediate\pdfobj stream {%!PS-Adobe-3.0 Resource-CMap
                   1691: %%DocumentNeededResources: ProcSet (CIDInit)
                   1692: %%IncludeResource: ProcSet (CIDInit)
                   1693: %%BeginResource: CMap (TeX-OT1TT-0)
                   1694: %%Title: (TeX-OT1TT-0 TeX OT1TT 0)
                   1695: %%Version: 1.000
                   1696: %%EndComments
                   1697: /CIDInit /ProcSet findresource begin
                   1698: 12 dict begin
                   1699: begincmap
                   1700: /CIDSystemInfo
                   1701: << /Registry (TeX)
                   1702: /Ordering (OT1TT)
                   1703: /Supplement 0
                   1704: >> def
                   1705: /CMapName /TeX-OT1TT-0 def
                   1706: /CMapType 2 def
                   1707: 1 begincodespacerange
                   1708: <00> <7F>
                   1709: endcodespacerange
                   1710: 5 beginbfrange
                   1711: <00> <01> <0393>
                   1712: <09> <0A> <03A8>
                   1713: <21> <26> <0021>
                   1714: <28> <5F> <0028>
                   1715: <61> <7E> <0061>
                   1716: endbfrange
                   1717: 32 beginbfchar
                   1718: <02> <0398>
                   1719: <03> <039B>
                   1720: <04> <039E>
                   1721: <05> <03A0>
                   1722: <06> <03A3>
                   1723: <07> <03D2>
                   1724: <08> <03A6>
                   1725: <0B> <2191>
                   1726: <0C> <2193>
                   1727: <0D> <0027>
                   1728: <0E> <00A1>
                   1729: <0F> <00BF>
                   1730: <10> <0131>
                   1731: <11> <0237>
                   1732: <12> <0060>
                   1733: <13> <00B4>
                   1734: <14> <02C7>
                   1735: <15> <02D8>
                   1736: <16> <00AF>
                   1737: <17> <02DA>
                   1738: <18> <00B8>
                   1739: <19> <00DF>
                   1740: <1A> <00E6>
                   1741: <1B> <0153>
                   1742: <1C> <00F8>
                   1743: <1D> <00C6>
                   1744: <1E> <0152>
                   1745: <1F> <00D8>
                   1746: <20> <2423>
                   1747: <27> <2019>
                   1748: <60> <2018>
                   1749: <7F> <00A8>
                   1750: endbfchar
                   1751: endcmap
                   1752: CMapName currentdict /CMap defineresource pop
                   1753: end
                   1754: end
                   1755: %%EndResource
                   1756: %%EOF
                   1757:     }\endgroup
                   1758:   \expandafter\edef\csname cmapOT1TT\endcsname#1{%
                   1759:     \pdffontattr#1{/ToUnicode \the\pdflastobj\space 0 R}%
                   1760:   }%
                   1761: \fi\fi
                   1762: 
                   1763: 
                   1764: % Set the font macro #1 to the font named #2, adding on the
                   1765: % specified font prefix (normally `cm').
                   1766: % #3 is the font's design size, #4 is a scale factor, #5 is the CMap
                   1767: % encoding (currently only OT1, OT1IT and OT1TT are allowed, pass
                   1768: % empty to omit).
                   1769: \def\setfont#1#2#3#4#5{%
                   1770:   \font#1=\fontprefix#2#3 scaled #4
                   1771:   \csname cmap#5\endcsname#1%
                   1772: }
                   1773: % This is what gets called when #5 of \setfont is empty.
                   1774: \let\cmap\gobble
                   1775: % emacs-page end of cmaps
                   1776: 
                   1777: % Use cm as the default font prefix.
                   1778: % To specify the font prefix, you must define \fontprefix
                   1779: % before you read in texinfo.tex.
1.1.1.2   misho    1780: \ifx\fontprefix\thisisundefined
1.1       misho    1781: \def\fontprefix{cm}
                   1782: \fi
                   1783: % Support font families that don't use the same naming scheme as CM.
                   1784: \def\rmshape{r}
                   1785: \def\rmbshape{bx}               %where the normal face is bold
                   1786: \def\bfshape{b}
                   1787: \def\bxshape{bx}
                   1788: \def\ttshape{tt}
                   1789: \def\ttbshape{tt}
                   1790: \def\ttslshape{sltt}
                   1791: \def\itshape{ti}
                   1792: \def\itbshape{bxti}
                   1793: \def\slshape{sl}
                   1794: \def\slbshape{bxsl}
                   1795: \def\sfshape{ss}
                   1796: \def\sfbshape{ss}
                   1797: \def\scshape{csc}
                   1798: \def\scbshape{csc}
                   1799: 
                   1800: % Definitions for a main text size of 11pt.  This is the default in
                   1801: % Texinfo.
                   1802: %
                   1803: \def\definetextfontsizexi{%
                   1804: % Text fonts (11.2pt, magstep1).
                   1805: \def\textnominalsize{11pt}
                   1806: \edef\mainmagstep{\magstephalf}
                   1807: \setfont\textrm\rmshape{10}{\mainmagstep}{OT1}
                   1808: \setfont\texttt\ttshape{10}{\mainmagstep}{OT1TT}
                   1809: \setfont\textbf\bfshape{10}{\mainmagstep}{OT1}
                   1810: \setfont\textit\itshape{10}{\mainmagstep}{OT1IT}
                   1811: \setfont\textsl\slshape{10}{\mainmagstep}{OT1}
                   1812: \setfont\textsf\sfshape{10}{\mainmagstep}{OT1}
                   1813: \setfont\textsc\scshape{10}{\mainmagstep}{OT1}
                   1814: \setfont\textttsl\ttslshape{10}{\mainmagstep}{OT1TT}
                   1815: \font\texti=cmmi10 scaled \mainmagstep
                   1816: \font\textsy=cmsy10 scaled \mainmagstep
                   1817: \def\textecsize{1095}
                   1818: 
                   1819: % A few fonts for @defun names and args.
                   1820: \setfont\defbf\bfshape{10}{\magstep1}{OT1}
                   1821: \setfont\deftt\ttshape{10}{\magstep1}{OT1TT}
                   1822: \setfont\defttsl\ttslshape{10}{\magstep1}{OT1TT}
                   1823: \def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf}
                   1824: 
                   1825: % Fonts for indices, footnotes, small examples (9pt).
                   1826: \def\smallnominalsize{9pt}
                   1827: \setfont\smallrm\rmshape{9}{1000}{OT1}
                   1828: \setfont\smalltt\ttshape{9}{1000}{OT1TT}
                   1829: \setfont\smallbf\bfshape{10}{900}{OT1}
                   1830: \setfont\smallit\itshape{9}{1000}{OT1IT}
                   1831: \setfont\smallsl\slshape{9}{1000}{OT1}
                   1832: \setfont\smallsf\sfshape{9}{1000}{OT1}
                   1833: \setfont\smallsc\scshape{10}{900}{OT1}
                   1834: \setfont\smallttsl\ttslshape{10}{900}{OT1TT}
                   1835: \font\smalli=cmmi9
                   1836: \font\smallsy=cmsy9
                   1837: \def\smallecsize{0900}
                   1838: 
                   1839: % Fonts for small examples (8pt).
                   1840: \def\smallernominalsize{8pt}
                   1841: \setfont\smallerrm\rmshape{8}{1000}{OT1}
                   1842: \setfont\smallertt\ttshape{8}{1000}{OT1TT}
                   1843: \setfont\smallerbf\bfshape{10}{800}{OT1}
                   1844: \setfont\smallerit\itshape{8}{1000}{OT1IT}
                   1845: \setfont\smallersl\slshape{8}{1000}{OT1}
                   1846: \setfont\smallersf\sfshape{8}{1000}{OT1}
                   1847: \setfont\smallersc\scshape{10}{800}{OT1}
                   1848: \setfont\smallerttsl\ttslshape{10}{800}{OT1TT}
                   1849: \font\smalleri=cmmi8
                   1850: \font\smallersy=cmsy8
                   1851: \def\smallerecsize{0800}
                   1852: 
                   1853: % Fonts for title page (20.4pt):
                   1854: \def\titlenominalsize{20pt}
                   1855: \setfont\titlerm\rmbshape{12}{\magstep3}{OT1}
                   1856: \setfont\titleit\itbshape{10}{\magstep4}{OT1IT}
                   1857: \setfont\titlesl\slbshape{10}{\magstep4}{OT1}
                   1858: \setfont\titlett\ttbshape{12}{\magstep3}{OT1TT}
                   1859: \setfont\titlettsl\ttslshape{10}{\magstep4}{OT1TT}
                   1860: \setfont\titlesf\sfbshape{17}{\magstep1}{OT1}
                   1861: \let\titlebf=\titlerm
                   1862: \setfont\titlesc\scbshape{10}{\magstep4}{OT1}
                   1863: \font\titlei=cmmi12 scaled \magstep3
                   1864: \font\titlesy=cmsy10 scaled \magstep4
                   1865: \def\titleecsize{2074}
                   1866: 
                   1867: % Chapter (and unnumbered) fonts (17.28pt).
                   1868: \def\chapnominalsize{17pt}
                   1869: \setfont\chaprm\rmbshape{12}{\magstep2}{OT1}
                   1870: \setfont\chapit\itbshape{10}{\magstep3}{OT1IT}
                   1871: \setfont\chapsl\slbshape{10}{\magstep3}{OT1}
                   1872: \setfont\chaptt\ttbshape{12}{\magstep2}{OT1TT}
                   1873: \setfont\chapttsl\ttslshape{10}{\magstep3}{OT1TT}
                   1874: \setfont\chapsf\sfbshape{17}{1000}{OT1}
                   1875: \let\chapbf=\chaprm
                   1876: \setfont\chapsc\scbshape{10}{\magstep3}{OT1}
                   1877: \font\chapi=cmmi12 scaled \magstep2
                   1878: \font\chapsy=cmsy10 scaled \magstep3
                   1879: \def\chapecsize{1728}
                   1880: 
                   1881: % Section fonts (14.4pt).
                   1882: \def\secnominalsize{14pt}
                   1883: \setfont\secrm\rmbshape{12}{\magstep1}{OT1}
                   1884: \setfont\secit\itbshape{10}{\magstep2}{OT1IT}
                   1885: \setfont\secsl\slbshape{10}{\magstep2}{OT1}
                   1886: \setfont\sectt\ttbshape{12}{\magstep1}{OT1TT}
                   1887: \setfont\secttsl\ttslshape{10}{\magstep2}{OT1TT}
                   1888: \setfont\secsf\sfbshape{12}{\magstep1}{OT1}
                   1889: \let\secbf\secrm
                   1890: \setfont\secsc\scbshape{10}{\magstep2}{OT1}
                   1891: \font\seci=cmmi12 scaled \magstep1
                   1892: \font\secsy=cmsy10 scaled \magstep2
                   1893: \def\sececsize{1440}
                   1894: 
                   1895: % Subsection fonts (13.15pt).
                   1896: \def\ssecnominalsize{13pt}
                   1897: \setfont\ssecrm\rmbshape{12}{\magstephalf}{OT1}
                   1898: \setfont\ssecit\itbshape{10}{1315}{OT1IT}
                   1899: \setfont\ssecsl\slbshape{10}{1315}{OT1}
                   1900: \setfont\ssectt\ttbshape{12}{\magstephalf}{OT1TT}
                   1901: \setfont\ssecttsl\ttslshape{10}{1315}{OT1TT}
                   1902: \setfont\ssecsf\sfbshape{12}{\magstephalf}{OT1}
                   1903: \let\ssecbf\ssecrm
                   1904: \setfont\ssecsc\scbshape{10}{1315}{OT1}
                   1905: \font\sseci=cmmi12 scaled \magstephalf
                   1906: \font\ssecsy=cmsy10 scaled 1315
                   1907: \def\ssececsize{1200}
                   1908: 
                   1909: % Reduced fonts for @acro in text (10pt).
                   1910: \def\reducednominalsize{10pt}
                   1911: \setfont\reducedrm\rmshape{10}{1000}{OT1}
                   1912: \setfont\reducedtt\ttshape{10}{1000}{OT1TT}
                   1913: \setfont\reducedbf\bfshape{10}{1000}{OT1}
                   1914: \setfont\reducedit\itshape{10}{1000}{OT1IT}
                   1915: \setfont\reducedsl\slshape{10}{1000}{OT1}
                   1916: \setfont\reducedsf\sfshape{10}{1000}{OT1}
                   1917: \setfont\reducedsc\scshape{10}{1000}{OT1}
                   1918: \setfont\reducedttsl\ttslshape{10}{1000}{OT1TT}
                   1919: \font\reducedi=cmmi10
                   1920: \font\reducedsy=cmsy10
                   1921: \def\reducedecsize{1000}
                   1922: 
1.1.1.2   misho    1923: \textleading = 13.2pt % line spacing for 11pt CM
                   1924: \textfonts            % reset the current fonts
1.1       misho    1925: \rm
                   1926: } % end of 11pt text font size definitions
                   1927: 
                   1928: 
                   1929: % Definitions to make the main text be 10pt Computer Modern, with
                   1930: % section, chapter, etc., sizes following suit.  This is for the GNU
                   1931: % Press printing of the Emacs 22 manual.  Maybe other manuals in the
                   1932: % future.  Used with @smallbook, which sets the leading to 12pt.
                   1933: %
                   1934: \def\definetextfontsizex{%
                   1935: % Text fonts (10pt).
                   1936: \def\textnominalsize{10pt}
                   1937: \edef\mainmagstep{1000}
                   1938: \setfont\textrm\rmshape{10}{\mainmagstep}{OT1}
                   1939: \setfont\texttt\ttshape{10}{\mainmagstep}{OT1TT}
                   1940: \setfont\textbf\bfshape{10}{\mainmagstep}{OT1}
                   1941: \setfont\textit\itshape{10}{\mainmagstep}{OT1IT}
                   1942: \setfont\textsl\slshape{10}{\mainmagstep}{OT1}
                   1943: \setfont\textsf\sfshape{10}{\mainmagstep}{OT1}
                   1944: \setfont\textsc\scshape{10}{\mainmagstep}{OT1}
                   1945: \setfont\textttsl\ttslshape{10}{\mainmagstep}{OT1TT}
                   1946: \font\texti=cmmi10 scaled \mainmagstep
                   1947: \font\textsy=cmsy10 scaled \mainmagstep
                   1948: \def\textecsize{1000}
                   1949: 
                   1950: % A few fonts for @defun names and args.
                   1951: \setfont\defbf\bfshape{10}{\magstephalf}{OT1}
                   1952: \setfont\deftt\ttshape{10}{\magstephalf}{OT1TT}
                   1953: \setfont\defttsl\ttslshape{10}{\magstephalf}{OT1TT}
                   1954: \def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf}
                   1955: 
                   1956: % Fonts for indices, footnotes, small examples (9pt).
                   1957: \def\smallnominalsize{9pt}
                   1958: \setfont\smallrm\rmshape{9}{1000}{OT1}
                   1959: \setfont\smalltt\ttshape{9}{1000}{OT1TT}
                   1960: \setfont\smallbf\bfshape{10}{900}{OT1}
                   1961: \setfont\smallit\itshape{9}{1000}{OT1IT}
                   1962: \setfont\smallsl\slshape{9}{1000}{OT1}
                   1963: \setfont\smallsf\sfshape{9}{1000}{OT1}
                   1964: \setfont\smallsc\scshape{10}{900}{OT1}
                   1965: \setfont\smallttsl\ttslshape{10}{900}{OT1TT}
                   1966: \font\smalli=cmmi9
                   1967: \font\smallsy=cmsy9
                   1968: \def\smallecsize{0900}
                   1969: 
                   1970: % Fonts for small examples (8pt).
                   1971: \def\smallernominalsize{8pt}
                   1972: \setfont\smallerrm\rmshape{8}{1000}{OT1}
                   1973: \setfont\smallertt\ttshape{8}{1000}{OT1TT}
                   1974: \setfont\smallerbf\bfshape{10}{800}{OT1}
                   1975: \setfont\smallerit\itshape{8}{1000}{OT1IT}
                   1976: \setfont\smallersl\slshape{8}{1000}{OT1}
                   1977: \setfont\smallersf\sfshape{8}{1000}{OT1}
                   1978: \setfont\smallersc\scshape{10}{800}{OT1}
                   1979: \setfont\smallerttsl\ttslshape{10}{800}{OT1TT}
                   1980: \font\smalleri=cmmi8
                   1981: \font\smallersy=cmsy8
                   1982: \def\smallerecsize{0800}
                   1983: 
                   1984: % Fonts for title page (20.4pt):
                   1985: \def\titlenominalsize{20pt}
                   1986: \setfont\titlerm\rmbshape{12}{\magstep3}{OT1}
                   1987: \setfont\titleit\itbshape{10}{\magstep4}{OT1IT}
                   1988: \setfont\titlesl\slbshape{10}{\magstep4}{OT1}
                   1989: \setfont\titlett\ttbshape{12}{\magstep3}{OT1TT}
                   1990: \setfont\titlettsl\ttslshape{10}{\magstep4}{OT1TT}
                   1991: \setfont\titlesf\sfbshape{17}{\magstep1}{OT1}
                   1992: \let\titlebf=\titlerm
                   1993: \setfont\titlesc\scbshape{10}{\magstep4}{OT1}
                   1994: \font\titlei=cmmi12 scaled \magstep3
                   1995: \font\titlesy=cmsy10 scaled \magstep4
                   1996: \def\titleecsize{2074}
                   1997: 
                   1998: % Chapter fonts (14.4pt).
                   1999: \def\chapnominalsize{14pt}
                   2000: \setfont\chaprm\rmbshape{12}{\magstep1}{OT1}
                   2001: \setfont\chapit\itbshape{10}{\magstep2}{OT1IT}
                   2002: \setfont\chapsl\slbshape{10}{\magstep2}{OT1}
                   2003: \setfont\chaptt\ttbshape{12}{\magstep1}{OT1TT}
                   2004: \setfont\chapttsl\ttslshape{10}{\magstep2}{OT1TT}
                   2005: \setfont\chapsf\sfbshape{12}{\magstep1}{OT1}
                   2006: \let\chapbf\chaprm
                   2007: \setfont\chapsc\scbshape{10}{\magstep2}{OT1}
                   2008: \font\chapi=cmmi12 scaled \magstep1
                   2009: \font\chapsy=cmsy10 scaled \magstep2
                   2010: \def\chapecsize{1440}
                   2011: 
                   2012: % Section fonts (12pt).
                   2013: \def\secnominalsize{12pt}
                   2014: \setfont\secrm\rmbshape{12}{1000}{OT1}
                   2015: \setfont\secit\itbshape{10}{\magstep1}{OT1IT}
                   2016: \setfont\secsl\slbshape{10}{\magstep1}{OT1}
                   2017: \setfont\sectt\ttbshape{12}{1000}{OT1TT}
                   2018: \setfont\secttsl\ttslshape{10}{\magstep1}{OT1TT}
                   2019: \setfont\secsf\sfbshape{12}{1000}{OT1}
                   2020: \let\secbf\secrm
                   2021: \setfont\secsc\scbshape{10}{\magstep1}{OT1}
                   2022: \font\seci=cmmi12
                   2023: \font\secsy=cmsy10 scaled \magstep1
                   2024: \def\sececsize{1200}
                   2025: 
                   2026: % Subsection fonts (10pt).
                   2027: \def\ssecnominalsize{10pt}
                   2028: \setfont\ssecrm\rmbshape{10}{1000}{OT1}
                   2029: \setfont\ssecit\itbshape{10}{1000}{OT1IT}
                   2030: \setfont\ssecsl\slbshape{10}{1000}{OT1}
                   2031: \setfont\ssectt\ttbshape{10}{1000}{OT1TT}
                   2032: \setfont\ssecttsl\ttslshape{10}{1000}{OT1TT}
                   2033: \setfont\ssecsf\sfbshape{10}{1000}{OT1}
                   2034: \let\ssecbf\ssecrm
                   2035: \setfont\ssecsc\scbshape{10}{1000}{OT1}
                   2036: \font\sseci=cmmi10
                   2037: \font\ssecsy=cmsy10
                   2038: \def\ssececsize{1000}
                   2039: 
                   2040: % Reduced fonts for @acro in text (9pt).
                   2041: \def\reducednominalsize{9pt}
                   2042: \setfont\reducedrm\rmshape{9}{1000}{OT1}
                   2043: \setfont\reducedtt\ttshape{9}{1000}{OT1TT}
                   2044: \setfont\reducedbf\bfshape{10}{900}{OT1}
                   2045: \setfont\reducedit\itshape{9}{1000}{OT1IT}
                   2046: \setfont\reducedsl\slshape{9}{1000}{OT1}
                   2047: \setfont\reducedsf\sfshape{9}{1000}{OT1}
                   2048: \setfont\reducedsc\scshape{10}{900}{OT1}
                   2049: \setfont\reducedttsl\ttslshape{10}{900}{OT1TT}
                   2050: \font\reducedi=cmmi9
                   2051: \font\reducedsy=cmsy9
                   2052: \def\reducedecsize{0900}
                   2053: 
1.1.1.2   misho    2054: \divide\parskip by 2  % reduce space between paragraphs
                   2055: \textleading = 12pt   % line spacing for 10pt CM
                   2056: \textfonts            % reset the current fonts
1.1       misho    2057: \rm
                   2058: } % end of 10pt text font size definitions
                   2059: 
                   2060: 
                   2061: % We provide the user-level command
                   2062: %   @fonttextsize 10
                   2063: % (or 11) to redefine the text font size.  pt is assumed.
                   2064: %
                   2065: \def\xiword{11}
1.1.1.2   misho    2066: \def\xword{10}
                   2067: \def\xwordpt{10pt}
1.1       misho    2068: %
                   2069: \parseargdef\fonttextsize{%
                   2070:   \def\textsizearg{#1}%
1.1.1.2   misho    2071:   %\wlog{doing @fonttextsize \textsizearg}%
1.1       misho    2072:   %
                   2073:   % Set \globaldefs so that documents can use this inside @tex, since
                   2074:   % makeinfo 4.8 does not support it, but we need it nonetheless.
                   2075:   %
                   2076:  \begingroup \globaldefs=1
                   2077:   \ifx\textsizearg\xword \definetextfontsizex
                   2078:   \else \ifx\textsizearg\xiword \definetextfontsizexi
                   2079:   \else
                   2080:     \errhelp=\EMsimple
                   2081:     \errmessage{@fonttextsize only supports `10' or `11', not `\textsizearg'}
                   2082:   \fi\fi
                   2083:  \endgroup
                   2084: }
                   2085: 
                   2086: 
                   2087: % In order for the font changes to affect most math symbols and letters,
                   2088: % we have to define the \textfont of the standard families.  Since
                   2089: % texinfo doesn't allow for producing subscripts and superscripts except
                   2090: % in the main text, we don't bother to reset \scriptfont and
                   2091: % \scriptscriptfont (which would also require loading a lot more fonts).
                   2092: %
                   2093: \def\resetmathfonts{%
                   2094:   \textfont0=\tenrm \textfont1=\teni \textfont2=\tensy
                   2095:   \textfont\itfam=\tenit \textfont\slfam=\tensl \textfont\bffam=\tenbf
                   2096:   \textfont\ttfam=\tentt \textfont\sffam=\tensf
                   2097: }
                   2098: 
                   2099: % The font-changing commands redefine the meanings of \tenSTYLE, instead
                   2100: % of just \STYLE.  We do this because \STYLE needs to also set the
                   2101: % current \fam for math mode.  Our \STYLE (e.g., \rm) commands hardwire
                   2102: % \tenSTYLE to set the current font.
                   2103: %
                   2104: % Each font-changing command also sets the names \lsize (one size lower)
                   2105: % and \lllsize (three sizes lower).  These relative commands are used in
                   2106: % the LaTeX logo and acronyms.
                   2107: %
                   2108: % This all needs generalizing, badly.
                   2109: %
                   2110: \def\textfonts{%
                   2111:   \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
                   2112:   \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
                   2113:   \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy
                   2114:   \let\tenttsl=\textttsl
                   2115:   \def\curfontsize{text}%
                   2116:   \def\lsize{reduced}\def\lllsize{smaller}%
                   2117:   \resetmathfonts \setleading{\textleading}}
                   2118: \def\titlefonts{%
                   2119:   \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
                   2120:   \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
                   2121:   \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
                   2122:   \let\tenttsl=\titlettsl
                   2123:   \def\curfontsize{title}%
                   2124:   \def\lsize{chap}\def\lllsize{subsec}%
1.1.1.2   misho    2125:   \resetmathfonts \setleading{27pt}}
1.1       misho    2126: \def\titlefont#1{{\titlefonts\rmisbold #1}}
                   2127: \def\chapfonts{%
                   2128:   \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
                   2129:   \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
                   2130:   \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy
                   2131:   \let\tenttsl=\chapttsl
                   2132:   \def\curfontsize{chap}%
                   2133:   \def\lsize{sec}\def\lllsize{text}%
                   2134:   \resetmathfonts \setleading{19pt}}
                   2135: \def\secfonts{%
                   2136:   \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
                   2137:   \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
                   2138:   \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy
                   2139:   \let\tenttsl=\secttsl
                   2140:   \def\curfontsize{sec}%
                   2141:   \def\lsize{subsec}\def\lllsize{reduced}%
                   2142:   \resetmathfonts \setleading{16pt}}
                   2143: \def\subsecfonts{%
                   2144:   \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
                   2145:   \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
                   2146:   \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy
                   2147:   \let\tenttsl=\ssecttsl
                   2148:   \def\curfontsize{ssec}%
                   2149:   \def\lsize{text}\def\lllsize{small}%
                   2150:   \resetmathfonts \setleading{15pt}}
                   2151: \let\subsubsecfonts = \subsecfonts
                   2152: \def\reducedfonts{%
                   2153:   \let\tenrm=\reducedrm \let\tenit=\reducedit \let\tensl=\reducedsl
                   2154:   \let\tenbf=\reducedbf \let\tentt=\reducedtt \let\reducedcaps=\reducedsc
                   2155:   \let\tensf=\reducedsf \let\teni=\reducedi \let\tensy=\reducedsy
                   2156:   \let\tenttsl=\reducedttsl
                   2157:   \def\curfontsize{reduced}%
                   2158:   \def\lsize{small}\def\lllsize{smaller}%
                   2159:   \resetmathfonts \setleading{10.5pt}}
                   2160: \def\smallfonts{%
                   2161:   \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl
                   2162:   \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc
                   2163:   \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy
                   2164:   \let\tenttsl=\smallttsl
                   2165:   \def\curfontsize{small}%
                   2166:   \def\lsize{smaller}\def\lllsize{smaller}%
                   2167:   \resetmathfonts \setleading{10.5pt}}
                   2168: \def\smallerfonts{%
                   2169:   \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl
                   2170:   \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc
                   2171:   \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy
                   2172:   \let\tenttsl=\smallerttsl
                   2173:   \def\curfontsize{smaller}%
                   2174:   \def\lsize{smaller}\def\lllsize{smaller}%
                   2175:   \resetmathfonts \setleading{9.5pt}}
                   2176: 
                   2177: % Fonts for short table of contents.
                   2178: \setfont\shortcontrm\rmshape{12}{1000}{OT1}
                   2179: \setfont\shortcontbf\bfshape{10}{\magstep1}{OT1}  % no cmb12
                   2180: \setfont\shortcontsl\slshape{12}{1000}{OT1}
                   2181: \setfont\shortconttt\ttshape{12}{1000}{OT1TT}
                   2182: 
                   2183: % Define these just so they can be easily changed for other fonts.
                   2184: \def\angleleft{$\langle$}
                   2185: \def\angleright{$\rangle$}
                   2186: 
                   2187: % Set the fonts to use with the @small... environments.
                   2188: \let\smallexamplefonts = \smallfonts
                   2189: 
                   2190: % About \smallexamplefonts.  If we use \smallfonts (9pt), @smallexample
                   2191: % can fit this many characters:
                   2192: %   8.5x11=86   smallbook=72  a4=90  a5=69
                   2193: % If we use \scriptfonts (8pt), then we can fit this many characters:
                   2194: %   8.5x11=90+  smallbook=80  a4=90+  a5=77
                   2195: % For me, subjectively, the few extra characters that fit aren't worth
                   2196: % the additional smallness of 8pt.  So I'm making the default 9pt.
                   2197: %
                   2198: % By the way, for comparison, here's what fits with @example (10pt):
                   2199: %   8.5x11=71  smallbook=60  a4=75  a5=58
                   2200: % --karl, 24jan03.
                   2201: 
                   2202: % Set up the default fonts, so we can use them for creating boxes.
                   2203: %
                   2204: \definetextfontsizexi
                   2205: 
                   2206: 
                   2207: \message{markup,}
                   2208: 
                   2209: % Check if we are currently using a typewriter font.  Since all the
                   2210: % Computer Modern typewriter fonts have zero interword stretch (and
                   2211: % shrink), and it is reasonable to expect all typewriter fonts to have
                   2212: % this property, we can check that font parameter.
                   2213: %
                   2214: \def\ifmonospace{\ifdim\fontdimen3\font=0pt }
                   2215: 
                   2216: % Markup style infrastructure.  \defmarkupstylesetup\INITMACRO will
                   2217: % define and register \INITMACRO to be called on markup style changes.
                   2218: % \INITMACRO can check \currentmarkupstyle for the innermost
                   2219: % style and the set of \ifmarkupSTYLE switches for all styles
                   2220: % currently in effect.
                   2221: \newif\ifmarkupvar
                   2222: \newif\ifmarkupsamp
                   2223: \newif\ifmarkupkey
                   2224: %\newif\ifmarkupfile % @file == @samp.
                   2225: %\newif\ifmarkupoption % @option == @samp.
                   2226: \newif\ifmarkupcode
                   2227: \newif\ifmarkupkbd
                   2228: %\newif\ifmarkupenv % @env == @code.
                   2229: %\newif\ifmarkupcommand % @command == @code.
                   2230: \newif\ifmarkuptex % @tex (and part of @math, for now).
                   2231: \newif\ifmarkupexample
                   2232: \newif\ifmarkupverb
                   2233: \newif\ifmarkupverbatim
                   2234: 
                   2235: \let\currentmarkupstyle\empty
                   2236: 
                   2237: \def\setupmarkupstyle#1{%
                   2238:   \csname markup#1true\endcsname
                   2239:   \def\currentmarkupstyle{#1}%
                   2240:   \markupstylesetup
                   2241: }
                   2242: 
                   2243: \let\markupstylesetup\empty
                   2244: 
                   2245: \def\defmarkupstylesetup#1{%
                   2246:   \expandafter\def\expandafter\markupstylesetup
                   2247:     \expandafter{\markupstylesetup #1}%
                   2248:   \def#1%
                   2249: }
                   2250: 
                   2251: % Markup style setup for left and right quotes.
                   2252: \defmarkupstylesetup\markupsetuplq{%
1.1.1.2   misho    2253:   \expandafter\let\expandafter \temp
                   2254:     \csname markupsetuplq\currentmarkupstyle\endcsname
1.1       misho    2255:   \ifx\temp\relax \markupsetuplqdefault \else \temp \fi
                   2256: }
                   2257: 
                   2258: \defmarkupstylesetup\markupsetuprq{%
1.1.1.2   misho    2259:   \expandafter\let\expandafter \temp
                   2260:     \csname markupsetuprq\currentmarkupstyle\endcsname
1.1       misho    2261:   \ifx\temp\relax \markupsetuprqdefault \else \temp \fi
                   2262: }
                   2263: 
                   2264: {
                   2265: \catcode`\'=\active
                   2266: \catcode`\`=\active
                   2267: 
                   2268: \gdef\markupsetuplqdefault{\let`\lq}
                   2269: \gdef\markupsetuprqdefault{\let'\rq}
                   2270: 
                   2271: \gdef\markupsetcodequoteleft{\let`\codequoteleft}
                   2272: \gdef\markupsetcodequoteright{\let'\codequoteright}
                   2273: 
                   2274: \gdef\markupsetnoligaturesquoteleft{\let`\noligaturesquoteleft}
                   2275: }
                   2276: 
                   2277: \let\markupsetuplqcode \markupsetcodequoteleft
                   2278: \let\markupsetuprqcode \markupsetcodequoteright
1.1.1.2   misho    2279: %
1.1       misho    2280: \let\markupsetuplqexample \markupsetcodequoteleft
                   2281: \let\markupsetuprqexample \markupsetcodequoteright
1.1.1.2   misho    2282: %
                   2283: \let\markupsetuplqsamp \markupsetcodequoteleft
                   2284: \let\markupsetuprqsamp \markupsetcodequoteright
                   2285: %
1.1       misho    2286: \let\markupsetuplqverb \markupsetcodequoteleft
                   2287: \let\markupsetuprqverb \markupsetcodequoteright
1.1.1.2   misho    2288: %
1.1       misho    2289: \let\markupsetuplqverbatim \markupsetcodequoteleft
                   2290: \let\markupsetuprqverbatim \markupsetcodequoteright
                   2291: 
                   2292: \let\markupsetuplqkbd \markupsetnoligaturesquoteleft
                   2293: 
1.1.1.2   misho    2294: % Allow an option to not use regular directed right quote/apostrophe
                   2295: % (char 0x27), but instead the undirected quote from cmtt (char 0x0d).
                   2296: % The undirected quote is ugly, so don't make it the default, but it
                   2297: % works for pasting with more pdf viewers (at least evince), the
                   2298: % lilypond developers report.  xpdf does work with the regular 0x27.
1.1       misho    2299: %
                   2300: \def\codequoteright{%
                   2301:   \expandafter\ifx\csname SETtxicodequoteundirected\endcsname\relax
                   2302:     \expandafter\ifx\csname SETcodequoteundirected\endcsname\relax
                   2303:       '%
                   2304:     \else \char'15 \fi
                   2305:   \else \char'15 \fi
                   2306: }
                   2307: %
                   2308: % and a similar option for the left quote char vs. a grave accent.
                   2309: % Modern fonts display ASCII 0x60 as a grave accent, so some people like
                   2310: % the code environments to do likewise.
                   2311: %
                   2312: \def\codequoteleft{%
                   2313:   \expandafter\ifx\csname SETtxicodequotebacktick\endcsname\relax
                   2314:     \expandafter\ifx\csname SETcodequotebacktick\endcsname\relax
                   2315:       % [Knuth] pp. 380,381,391
                   2316:       % \relax disables Spanish ligatures ?` and !` of \tt font.
                   2317:       \relax`%
                   2318:     \else \char'22 \fi
                   2319:   \else \char'22 \fi
                   2320: }
                   2321: 
1.1.1.2   misho    2322: % Commands to set the quote options.
                   2323: % 
                   2324: \parseargdef\codequoteundirected{%
                   2325:   \def\temp{#1}%
                   2326:   \ifx\temp\onword
                   2327:     \expandafter\let\csname SETtxicodequoteundirected\endcsname
                   2328:       = t%
                   2329:   \else\ifx\temp\offword
                   2330:     \expandafter\let\csname SETtxicodequoteundirected\endcsname
                   2331:       = \relax
                   2332:   \else
                   2333:     \errhelp = \EMsimple
                   2334:     \errmessage{Unknown @codequoteundirected value `\temp', must be on|off}%
                   2335:   \fi\fi
                   2336: }
                   2337: %
                   2338: \parseargdef\codequotebacktick{%
                   2339:   \def\temp{#1}%
                   2340:   \ifx\temp\onword
                   2341:     \expandafter\let\csname SETtxicodequotebacktick\endcsname
                   2342:       = t%
                   2343:   \else\ifx\temp\offword
                   2344:     \expandafter\let\csname SETtxicodequotebacktick\endcsname
                   2345:       = \relax
                   2346:   \else
                   2347:     \errhelp = \EMsimple
                   2348:     \errmessage{Unknown @codequotebacktick value `\temp', must be on|off}%
                   2349:   \fi\fi
                   2350: }
                   2351: 
1.1       misho    2352: % [Knuth] pp. 380,381,391, disable Spanish ligatures ?` and !` of \tt font.
                   2353: \def\noligaturesquoteleft{\relax\lq}
                   2354: 
                   2355: % Count depth in font-changes, for error checks
                   2356: \newcount\fontdepth \fontdepth=0
                   2357: 
1.1.1.2   misho    2358: % Font commands.
1.1       misho    2359: 
1.1.1.2   misho    2360: % #1 is the font command (\sl or \it), #2 is the text to slant.
                   2361: % If we are in a monospaced environment, however, 1) always use \ttsl,
                   2362: % and 2) do not add an italic correction.
                   2363: \def\dosmartslant#1#2{%
                   2364:   \ifusingtt 
                   2365:     {{\ttsl #2}\let\next=\relax}%
                   2366:     {\def\next{{#1#2}\futurelet\next\smartitaliccorrection}}%
                   2367:   \next
                   2368: }
                   2369: \def\smartslanted{\dosmartslant\sl}
                   2370: \def\smartitalic{\dosmartslant\it}
                   2371: 
                   2372: % Output an italic correction unless \next (presumed to be the following
                   2373: % character) is such as not to need one.
                   2374: \def\smartitaliccorrection{%
                   2375:   \ifx\next,%
                   2376:   \else\ifx\next-%
                   2377:   \else\ifx\next.%
                   2378:   \else\ptexslash
                   2379:   \fi\fi\fi
                   2380:   \aftersmartic
                   2381: }
1.1       misho    2382: 
1.1.1.2   misho    2383: % like \smartslanted except unconditionally uses \ttsl, and no ic.
1.1       misho    2384: % @var is set to this for defun arguments.
1.1.1.2   misho    2385: \def\ttslanted#1{{\ttsl #1}}
1.1       misho    2386: 
                   2387: % @cite is like \smartslanted except unconditionally use \sl.  We never want
                   2388: % ttsl for book titles, do we?
1.1.1.2   misho    2389: \def\cite#1{{\sl #1}\futurelet\next\smartitaliccorrection}
                   2390: 
                   2391: \def\aftersmartic{}
                   2392: \def\var#1{%
                   2393:   \let\saveaftersmartic = \aftersmartic
                   2394:   \def\aftersmartic{\null\let\aftersmartic=\saveaftersmartic}%
                   2395:   \smartslanted{#1}%
                   2396: }
1.1       misho    2397: 
                   2398: \let\i=\smartitalic
                   2399: \let\slanted=\smartslanted
                   2400: \let\dfn=\smartslanted
                   2401: \let\emph=\smartitalic
                   2402: 
                   2403: % Explicit font changes: @r, @sc, undocumented @ii.
                   2404: \def\r#1{{\rm #1}}              % roman font
                   2405: \def\sc#1{{\smallcaps#1}}       % smallcaps font
                   2406: \def\ii#1{{\it #1}}             % italic font
                   2407: 
                   2408: % @b, explicit bold.  Also @strong.
                   2409: \def\b#1{{\bf #1}}
                   2410: \let\strong=\b
                   2411: 
                   2412: % @sansserif, explicit sans.
                   2413: \def\sansserif#1{{\sf #1}}
                   2414: 
                   2415: % We can't just use \exhyphenpenalty, because that only has effect at
                   2416: % the end of a paragraph.  Restore normal hyphenation at the end of the
                   2417: % group within which \nohyphenation is presumably called.
                   2418: %
                   2419: \def\nohyphenation{\hyphenchar\font = -1  \aftergroup\restorehyphenation}
                   2420: \def\restorehyphenation{\hyphenchar\font = `- }
                   2421: 
                   2422: % Set sfcode to normal for the chars that usually have another value.
                   2423: % Can't use plain's \frenchspacing because it uses the `\x notation, and
                   2424: % sometimes \x has an active definition that messes things up.
                   2425: %
                   2426: \catcode`@=11
                   2427:   \def\plainfrenchspacing{%
                   2428:     \sfcode\dotChar  =\@m \sfcode\questChar=\@m \sfcode\exclamChar=\@m
                   2429:     \sfcode\colonChar=\@m \sfcode\semiChar =\@m \sfcode\commaChar =\@m
                   2430:     \def\endofsentencespacefactor{1000}% for @. and friends
                   2431:   }
                   2432:   \def\plainnonfrenchspacing{%
                   2433:     \sfcode`\.3000\sfcode`\?3000\sfcode`\!3000
                   2434:     \sfcode`\:2000\sfcode`\;1500\sfcode`\,1250
                   2435:     \def\endofsentencespacefactor{3000}% for @. and friends
                   2436:   }
                   2437: \catcode`@=\other
                   2438: \def\endofsentencespacefactor{3000}% default
                   2439: 
                   2440: % @t, explicit typewriter.
                   2441: \def\t#1{%
                   2442:   {\tt \rawbackslash \plainfrenchspacing #1}%
                   2443:   \null
                   2444: }
                   2445: 
                   2446: % @samp.
                   2447: \def\samp#1{{\setupmarkupstyle{samp}\lq\tclose{#1}\rq\null}}
                   2448: 
                   2449: % definition of @key that produces a lozenge.  Doesn't adjust to text size.
                   2450: %\setfont\keyrm\rmshape{8}{1000}{OT1}
                   2451: %\font\keysy=cmsy9
                   2452: %\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
                   2453: %  \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
                   2454: %    \vbox{\hrule\kern-0.4pt
                   2455: %     \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
                   2456: %    \kern-0.4pt\hrule}%
                   2457: %  \kern-.06em\raise0.4pt\hbox{\angleright}}}}
                   2458: 
                   2459: % definition of @key with no lozenge.  If the current font is already
                   2460: % monospace, don't change it; that way, we respect @kbdinputstyle.  But
                   2461: % if it isn't monospace, then use \tt.
                   2462: %
                   2463: \def\key#1{{\setupmarkupstyle{key}%
                   2464:   \nohyphenation
                   2465:   \ifmonospace\else\tt\fi
                   2466:   #1}\null}
                   2467: 
                   2468: % ctrl is no longer a Texinfo command.
                   2469: \def\ctrl #1{{\tt \rawbackslash \hat}#1}
                   2470: 
                   2471: % @file, @option are the same as @samp.
                   2472: \let\file=\samp
                   2473: \let\option=\samp
                   2474: 
                   2475: % @code is a modification of @t,
                   2476: % which makes spaces the same size as normal in the surrounding text.
                   2477: \def\tclose#1{%
                   2478:   {%
                   2479:     % Change normal interword space to be same as for the current font.
                   2480:     \spaceskip = \fontdimen2\font
                   2481:     %
                   2482:     % Switch to typewriter.
                   2483:     \tt
                   2484:     %
                   2485:     % But `\ ' produces the large typewriter interword space.
                   2486:     \def\ {{\spaceskip = 0pt{} }}%
                   2487:     %
                   2488:     % Turn off hyphenation.
                   2489:     \nohyphenation
                   2490:     %
                   2491:     \rawbackslash
                   2492:     \plainfrenchspacing
                   2493:     #1%
                   2494:   }%
1.1.1.2   misho    2495:   \null % reset spacefactor to 1000
1.1       misho    2496: }
                   2497: 
                   2498: % We *must* turn on hyphenation at `-' and `_' in @code.
                   2499: % Otherwise, it is too hard to avoid overfull hboxes
                   2500: % in the Emacs manual, the Library manual, etc.
                   2501: 
                   2502: % Unfortunately, TeX uses one parameter (\hyphenchar) to control
                   2503: % both hyphenation at - and hyphenation within words.
                   2504: % We must therefore turn them both off (\tclose does that)
                   2505: % and arrange explicitly to hyphenate at a dash.
                   2506: %  -- rms.
                   2507: {
                   2508:   \catcode`\-=\active \catcode`\_=\active
                   2509:   \catcode`\'=\active \catcode`\`=\active
                   2510:   \global\let'=\rq \global\let`=\lq  % default definitions
                   2511:   %
                   2512:   \global\def\code{\begingroup
                   2513:     \setupmarkupstyle{code}%
                   2514:     % The following should really be moved into \setupmarkupstyle handlers.
                   2515:     \catcode\dashChar=\active  \catcode\underChar=\active
                   2516:     \ifallowcodebreaks
                   2517:      \let-\codedash
                   2518:      \let_\codeunder
                   2519:     \else
                   2520:      \let-\realdash
                   2521:      \let_\realunder
                   2522:     \fi
                   2523:     \codex
                   2524:   }
                   2525: }
                   2526: 
1.1.1.2   misho    2527: \def\codex #1{\tclose{#1}\endgroup}
                   2528: 
1.1       misho    2529: \def\realdash{-}
                   2530: \def\codedash{-\discretionary{}{}{}}
                   2531: \def\codeunder{%
                   2532:   % this is all so @math{@code{var_name}+1} can work.  In math mode, _
                   2533:   % is "active" (mathcode"8000) and \normalunderscore (or \char95, etc.)
                   2534:   % will therefore expand the active definition of _, which is us
                   2535:   % (inside @code that is), therefore an endless loop.
                   2536:   \ifusingtt{\ifmmode
                   2537:                \mathchar"075F % class 0=ordinary, family 7=ttfam, pos 0x5F=_.
                   2538:              \else\normalunderscore \fi
                   2539:              \discretionary{}{}{}}%
                   2540:             {\_}%
                   2541: }
                   2542: 
                   2543: % An additional complication: the above will allow breaks after, e.g.,
                   2544: % each of the four underscores in __typeof__.  This is undesirable in
                   2545: % some manuals, especially if they don't have long identifiers in
                   2546: % general.  @allowcodebreaks provides a way to control this.
                   2547: %
                   2548: \newif\ifallowcodebreaks  \allowcodebreakstrue
                   2549: 
                   2550: \def\keywordtrue{true}
                   2551: \def\keywordfalse{false}
                   2552: 
                   2553: \parseargdef\allowcodebreaks{%
                   2554:   \def\txiarg{#1}%
                   2555:   \ifx\txiarg\keywordtrue
                   2556:     \allowcodebreakstrue
                   2557:   \else\ifx\txiarg\keywordfalse
                   2558:     \allowcodebreaksfalse
                   2559:   \else
                   2560:     \errhelp = \EMsimple
1.1.1.2   misho    2561:     \errmessage{Unknown @allowcodebreaks option `\txiarg', must be true|false}%
1.1       misho    2562:   \fi\fi
                   2563: }
                   2564: 
1.1.1.2   misho    2565: % @uref (abbreviation for `urlref') takes an optional (comma-separated)
                   2566: % second argument specifying the text to display and an optional third
                   2567: % arg as text to display instead of (rather than in addition to) the url
                   2568: % itself.  First (mandatory) arg is the url.
                   2569: % (This \urefnobreak definition isn't used now, leaving it for a while
                   2570: % for comparison.)
                   2571: \def\urefnobreak#1{\dourefnobreak #1,,,\finish}
                   2572: \def\dourefnobreak#1,#2,#3,#4\finish{\begingroup
                   2573:   \unsepspaces
                   2574:   \pdfurl{#1}%
                   2575:   \setbox0 = \hbox{\ignorespaces #3}%
                   2576:   \ifdim\wd0 > 0pt
                   2577:     \unhbox0 % third arg given, show only that
                   2578:   \else
                   2579:     \setbox0 = \hbox{\ignorespaces #2}%
                   2580:     \ifdim\wd0 > 0pt
                   2581:       \ifpdf
                   2582:         \unhbox0             % PDF: 2nd arg given, show only it
                   2583:       \else
                   2584:         \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url
                   2585:       \fi
                   2586:     \else
                   2587:       \code{#1}% only url given, so show it
                   2588:     \fi
                   2589:   \fi
                   2590:   \endlink
                   2591: \endgroup}
                   2592: 
                   2593: % This \urefbreak definition is the active one.
                   2594: \def\urefbreak{\begingroup \urefcatcodes \dourefbreak}
                   2595: \let\uref=\urefbreak
                   2596: \def\dourefbreak#1{\urefbreakfinish #1,,,\finish}
                   2597: \def\urefbreakfinish#1,#2,#3,#4\finish{% doesn't work in @example
                   2598:   \unsepspaces
                   2599:   \pdfurl{#1}%
                   2600:   \setbox0 = \hbox{\ignorespaces #3}%
                   2601:   \ifdim\wd0 > 0pt
                   2602:     \unhbox0 % third arg given, show only that
                   2603:   \else
                   2604:     \setbox0 = \hbox{\ignorespaces #2}%
                   2605:     \ifdim\wd0 > 0pt
                   2606:       \ifpdf
                   2607:         \unhbox0             % PDF: 2nd arg given, show only it
                   2608:       \else
                   2609:         \unhbox0\ (\urefcode{#1})% DVI: 2nd arg given, show both it and url
                   2610:       \fi
                   2611:     \else
                   2612:       \urefcode{#1}% only url given, so show it
                   2613:     \fi
                   2614:   \fi
                   2615:   \endlink
                   2616: \endgroup}
                   2617: 
                   2618: % Allow line breaks around only a few characters (only).
                   2619: \def\urefcatcodes{%
                   2620:   \catcode\ampChar=\active   \catcode\dotChar=\active
                   2621:   \catcode\hashChar=\active  \catcode\questChar=\active
                   2622:   \catcode\slashChar=\active
                   2623: }
                   2624: {
                   2625:   \urefcatcodes
                   2626:   %
                   2627:   \global\def\urefcode{\begingroup
                   2628:     \setupmarkupstyle{code}%
                   2629:     \urefcatcodes
                   2630:     \let&\urefcodeamp
                   2631:     \let.\urefcodedot
                   2632:     \let#\urefcodehash
                   2633:     \let?\urefcodequest
                   2634:     \let/\urefcodeslash
                   2635:     \codex
                   2636:   }
                   2637:   %
                   2638:   % By default, they are just regular characters.
                   2639:   \global\def&{\normalamp}
                   2640:   \global\def.{\normaldot}
                   2641:   \global\def#{\normalhash}
                   2642:   \global\def?{\normalquest}
                   2643:   \global\def/{\normalslash}
                   2644: }
                   2645: 
                   2646: % we put a little stretch before and after the breakable chars, to help
                   2647: % line breaking of long url's.  The unequal skips make look better in
                   2648: % cmtt at least, especially for dots.
                   2649: \def\urefprestretch{\urefprebreak \hskip0pt plus.13em }
                   2650: \def\urefpoststretch{\urefpostbreak \hskip0pt plus.1em }
                   2651: %
                   2652: \def\urefcodeamp{\urefprestretch \&\urefpoststretch}
                   2653: \def\urefcodedot{\urefprestretch .\urefpoststretch}
                   2654: \def\urefcodehash{\urefprestretch \#\urefpoststretch}
                   2655: \def\urefcodequest{\urefprestretch ?\urefpoststretch}
                   2656: \def\urefcodeslash{\futurelet\next\urefcodeslashfinish}
                   2657: {
                   2658:   \catcode`\/=\active
                   2659:   \global\def\urefcodeslashfinish{%
                   2660:     \urefprestretch \slashChar
                   2661:     % Allow line break only after the final / in a sequence of
                   2662:     % slashes, to avoid line break between the slashes in http://.
                   2663:     \ifx\next/\else \urefpoststretch \fi
                   2664:   }
                   2665: }
                   2666: 
                   2667: % One more complication: by default we'll break after the special
                   2668: % characters, but some people like to break before the special chars, so
                   2669: % allow that.  Also allow no breaking at all, for manual control.
                   2670: % 
                   2671: \parseargdef\urefbreakstyle{%
                   2672:   \def\txiarg{#1}%
                   2673:   \ifx\txiarg\wordnone
                   2674:     \def\urefprebreak{\nobreak}\def\urefpostbreak{\nobreak}
                   2675:   \else\ifx\txiarg\wordbefore
                   2676:     \def\urefprebreak{\allowbreak}\def\urefpostbreak{\nobreak}
                   2677:   \else\ifx\txiarg\wordafter
                   2678:     \def\urefprebreak{\nobreak}\def\urefpostbreak{\allowbreak}
                   2679:   \else
                   2680:     \errhelp = \EMsimple
                   2681:     \errmessage{Unknown @urefbreakstyle setting `\txiarg'}%
                   2682:   \fi\fi\fi
                   2683: }
                   2684: \def\wordafter{after}
                   2685: \def\wordbefore{before}
                   2686: \def\wordnone{none}
                   2687: 
                   2688: \urefbreakstyle after
                   2689: 
                   2690: % @url synonym for @uref, since that's how everyone uses it.
                   2691: %
                   2692: \let\url=\uref
                   2693: 
                   2694: % rms does not like angle brackets --karl, 17may97.
                   2695: % So now @email is just like @uref, unless we are pdf.
                   2696: %
                   2697: %\def\email#1{\angleleft{\tt #1}\angleright}
                   2698: \ifpdf
                   2699:   \def\email#1{\doemail#1,,\finish}
                   2700:   \def\doemail#1,#2,#3\finish{\begingroup
                   2701:     \unsepspaces
                   2702:     \pdfurl{mailto:#1}%
                   2703:     \setbox0 = \hbox{\ignorespaces #2}%
                   2704:     \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi
                   2705:     \endlink
                   2706:   \endgroup}
                   2707: \else
                   2708:   \let\email=\uref
                   2709: \fi
                   2710: 
1.1       misho    2711: % @kbd is like @code, except that if the argument is just one @key command,
                   2712: % then @kbd has no effect.
                   2713: \def\kbd#1{{\setupmarkupstyle{kbd}\def\look{#1}\expandafter\kbdfoo\look??\par}}
                   2714: 
                   2715: % @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
                   2716: %   `example' (@kbd uses ttsl only inside of @example and friends),
                   2717: %   or `code' (@kbd uses normal tty font always).
                   2718: \parseargdef\kbdinputstyle{%
                   2719:   \def\txiarg{#1}%
                   2720:   \ifx\txiarg\worddistinct
                   2721:     \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}%
                   2722:   \else\ifx\txiarg\wordexample
                   2723:     \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}%
                   2724:   \else\ifx\txiarg\wordcode
                   2725:     \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}%
                   2726:   \else
                   2727:     \errhelp = \EMsimple
1.1.1.2   misho    2728:     \errmessage{Unknown @kbdinputstyle setting `\txiarg'}%
1.1       misho    2729:   \fi\fi\fi
                   2730: }
                   2731: \def\worddistinct{distinct}
                   2732: \def\wordexample{example}
                   2733: \def\wordcode{code}
                   2734: 
                   2735: % Default is `distinct'.
                   2736: \kbdinputstyle distinct
                   2737: 
                   2738: \def\xkey{\key}
                   2739: \def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
                   2740: \ifx\one\xkey\ifx\threex\three \key{#2}%
                   2741: \else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi
                   2742: \else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi}
                   2743: 
                   2744: % For @indicateurl, @env, @command quotes seem unnecessary, so use \code.
                   2745: \let\indicateurl=\code
                   2746: \let\env=\code
                   2747: \let\command=\code
                   2748: 
                   2749: % @clicksequence{File @click{} Open ...}
                   2750: \def\clicksequence#1{\begingroup #1\endgroup}
                   2751: 
                   2752: % @clickstyle @arrow   (by default)
                   2753: \parseargdef\clickstyle{\def\click{#1}}
                   2754: \def\click{\arrow}
                   2755: 
1.1.1.2   misho    2756: % Typeset a dimension, e.g., `in' or `pt'.  The only reason for the
                   2757: % argument is to make the input look right: @dmn{pt} instead of @dmn{}pt.
1.1       misho    2758: %
1.1.1.2   misho    2759: \def\dmn#1{\thinspace #1}
                   2760: 
                   2761: % @l was never documented to mean ``switch to the Lisp font'',
                   2762: % and it is not used as such in any manual I can find.  We need it for
                   2763: % Polish suppressed-l.  --karl, 22sep96.
                   2764: %\def\l#1{{\li #1}\null}
                   2765: 
                   2766: % @acronym for "FBI", "NATO", and the like.
                   2767: % We print this one point size smaller, since it's intended for
                   2768: % all-uppercase.
                   2769: %
                   2770: \def\acronym#1{\doacronym #1,,\finish}
                   2771: \def\doacronym#1,#2,#3\finish{%
                   2772:   {\selectfonts\lsize #1}%
                   2773:   \def\temp{#2}%
                   2774:   \ifx\temp\empty \else
                   2775:     \space ({\unsepspaces \ignorespaces \temp \unskip})%
1.1       misho    2776:   \fi
1.1.1.2   misho    2777:   \null % reset \spacefactor=1000
                   2778: }
1.1       misho    2779: 
1.1.1.2   misho    2780: % @abbr for "Comput. J." and the like.
                   2781: % No font change, but don't do end-of-sentence spacing.
1.1       misho    2782: %
1.1.1.2   misho    2783: \def\abbr#1{\doabbr #1,,\finish}
                   2784: \def\doabbr#1,#2,#3\finish{%
                   2785:   {\plainfrenchspacing #1}%
                   2786:   \def\temp{#2}%
                   2787:   \ifx\temp\empty \else
                   2788:     \space ({\unsepspaces \ignorespaces \temp \unskip})%
                   2789:   \fi
                   2790:   \null % reset \spacefactor=1000
                   2791: }
                   2792: 
                   2793: % @asis just yields its argument.  Used with @table, for example.
                   2794: %
                   2795: \def\asis#1{#1}
                   2796: 
                   2797: % @math outputs its argument in math mode.
                   2798: %
                   2799: % One complication: _ usually means subscripts, but it could also mean
                   2800: % an actual _ character, as in @math{@var{some_variable} + 1}.  So make
                   2801: % _ active, and distinguish by seeing if the current family is \slfam,
                   2802: % which is what @var uses.
                   2803: {
                   2804:   \catcode`\_ = \active
                   2805:   \gdef\mathunderscore{%
                   2806:     \catcode`\_=\active
                   2807:     \def_{\ifnum\fam=\slfam \_\else\sb\fi}%
                   2808:   }
                   2809: }
                   2810: % Another complication: we want \\ (and @\) to output a math (or tt) \.
                   2811: % FYI, plain.tex uses \\ as a temporary control sequence (for no
                   2812: % particular reason), but this is not advertised and we don't care.
                   2813: %
                   2814: % The \mathchar is class=0=ordinary, family=7=ttfam, position=5C=\.
                   2815: \def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi}
                   2816: %
                   2817: \def\math{%
                   2818:   \tex
                   2819:   \mathunderscore
                   2820:   \let\\ = \mathbackslash
                   2821:   \mathactive
                   2822:   % make the texinfo accent commands work in math mode
                   2823:   \let\"=\ddot
                   2824:   \let\'=\acute
                   2825:   \let\==\bar
                   2826:   \let\^=\hat
                   2827:   \let\`=\grave
                   2828:   \let\u=\breve
                   2829:   \let\v=\check
                   2830:   \let\~=\tilde
                   2831:   \let\dotaccent=\dot
                   2832:   $\finishmath
                   2833: }
                   2834: \def\finishmath#1{#1$\endgroup}  % Close the group opened by \tex.
                   2835: 
                   2836: % Some active characters (such as <) are spaced differently in math.
                   2837: % We have to reset their definitions in case the @math was an argument
                   2838: % to a command which sets the catcodes (such as @item or @section).
                   2839: %
                   2840: {
                   2841:   \catcode`^ = \active
                   2842:   \catcode`< = \active
                   2843:   \catcode`> = \active
                   2844:   \catcode`+ = \active
                   2845:   \catcode`' = \active
                   2846:   \gdef\mathactive{%
                   2847:     \let^ = \ptexhat
                   2848:     \let< = \ptexless
                   2849:     \let> = \ptexgtr
                   2850:     \let+ = \ptexplus
                   2851:     \let' = \ptexquoteright
                   2852:   }
                   2853: }
                   2854: 
1.1.1.3 ! misho    2855: % @inlinefmt{FMTNAME,PROCESSED-TEXT} and @inlineraw{FMTNAME,RAW-TEXT}.
        !          2856: % Ignore unless FMTNAME == tex; then it is like @iftex and @tex,
        !          2857: % except specified as a normal braced arg, so no newlines to worry about.
        !          2858: % 
        !          2859: \def\outfmtnametex{tex}
        !          2860: %
        !          2861: \long\def\inlinefmt#1{\doinlinefmt #1,\finish}
        !          2862: \long\def\doinlinefmt#1,#2,\finish{%
        !          2863:   \def\inlinefmtname{#1}%
        !          2864:   \ifx\inlinefmtname\outfmtnametex \ignorespaces #2\fi
        !          2865: }
        !          2866: % For raw, must switch into @tex before parsing the argument, to avoid
        !          2867: % setting catcodes prematurely.  Doing it this way means that, for
        !          2868: % example, @inlineraw{html, foo{bar} gets a parse error instead of being
        !          2869: % ignored.  But this isn't important because if people want a literal
        !          2870: % *right* brace they would have to use a command anyway, so they may as
        !          2871: % well use a command to get a left brace too.  We could re-use the
        !          2872: % delimiter character idea from \verb, but it seems like overkill.
        !          2873: % 
        !          2874: \long\def\inlineraw{\tex \doinlineraw}
        !          2875: \long\def\doinlineraw#1{\doinlinerawtwo #1,\finish}
        !          2876: \def\doinlinerawtwo#1,#2,\finish{%
        !          2877:   \def\inlinerawname{#1}%
        !          2878:   \ifx\inlinerawname\outfmtnametex \ignorespaces #2\fi
        !          2879:   \endgroup % close group opened by \tex.
        !          2880: }
        !          2881: 
1.1.1.2   misho    2882: 
                   2883: \message{glyphs,}
                   2884: % and logos.
                   2885: 
1.1.1.3 ! misho    2886: % @@ prints an @, as does @atchar{}.
1.1.1.2   misho    2887: \def\@{\char64 }
1.1.1.3 ! misho    2888: \let\atchar=\@
1.1.1.2   misho    2889: 
1.1.1.3 ! misho    2890: % @{ @} @lbracechar{} @rbracechar{} all generate brace characters.
        !          2891: % Unless we're in typewriter, use \ecfont because the CM text fonts do
        !          2892: % not have braces, and we don't want to switch into math.
1.1.1.2   misho    2893: \def\mylbrace{{\ifmonospace\else\ecfont\fi \char123}}
                   2894: \def\myrbrace{{\ifmonospace\else\ecfont\fi \char125}}
1.1.1.3 ! misho    2895: \let\{=\mylbrace \let\lbracechar=\{
        !          2896: \let\}=\myrbrace \let\rbracechar=\}
1.1.1.2   misho    2897: \begingroup
                   2898:   % Definitions to produce \{ and \} commands for indices,
                   2899:   % and @{ and @} for the aux/toc files.
                   2900:   \catcode`\{ = \other \catcode`\} = \other
                   2901:   \catcode`\[ = 1 \catcode`\] = 2
                   2902:   \catcode`\! = 0 \catcode`\\ = \other
                   2903:   !gdef!lbracecmd[\{]%
                   2904:   !gdef!rbracecmd[\}]%
                   2905:   !gdef!lbraceatcmd[@{]%
                   2906:   !gdef!rbraceatcmd[@}]%
                   2907: !endgroup
                   2908: 
                   2909: % @comma{} to avoid , parsing problems.
                   2910: \let\comma = ,
                   2911: 
                   2912: % Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent
                   2913: % Others are defined by plain TeX: @` @' @" @^ @~ @= @u @v @H.
                   2914: \let\, = \ptexc
                   2915: \let\dotaccent = \ptexdot
                   2916: \def\ringaccent#1{{\accent23 #1}}
                   2917: \let\tieaccent = \ptext
                   2918: \let\ubaraccent = \ptexb
                   2919: \let\udotaccent = \d
                   2920: 
                   2921: % Other special characters: @questiondown @exclamdown @ordf @ordm
                   2922: % Plain TeX defines: @AA @AE @O @OE @L (plus lowercase versions) @ss.
                   2923: \def\questiondown{?`}
                   2924: \def\exclamdown{!`}
                   2925: \def\ordf{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{a}}}
                   2926: \def\ordm{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{o}}}
1.1       misho    2927: 
1.1.1.2   misho    2928: % Dotless i and dotless j, used for accents.
                   2929: \def\imacro{i}
                   2930: \def\jmacro{j}
                   2931: \def\dotless#1{%
                   2932:   \def\temp{#1}%
                   2933:   \ifx\temp\imacro \ifmmode\imath \else\ptexi \fi
                   2934:   \else\ifx\temp\jmacro \ifmmode\jmath \else\j \fi
                   2935:   \else \errmessage{@dotless can be used only with i or j}%
                   2936:   \fi\fi
                   2937: }
                   2938: 
                   2939: % The \TeX{} logo, as in plain, but resetting the spacing so that a
                   2940: % period following counts as ending a sentence.  (Idea found in latex.)
1.1       misho    2941: %
1.1.1.2   misho    2942: \edef\TeX{\TeX \spacefactor=1000 }
1.1       misho    2943: 
1.1.1.2   misho    2944: % @LaTeX{} logo.  Not quite the same results as the definition in
                   2945: % latex.ltx, since we use a different font for the raised A; it's most
                   2946: % convenient for us to use an explicitly smaller font, rather than using
                   2947: % the \scriptstyle font (since we don't reset \scriptstyle and
                   2948: % \scriptscriptstyle).
1.1       misho    2949: %
1.1.1.2   misho    2950: \def\LaTeX{%
                   2951:   L\kern-.36em
                   2952:   {\setbox0=\hbox{T}%
                   2953:    \vbox to \ht0{\hbox{%
                   2954:      \ifx\textnominalsize\xwordpt
                   2955:        % for 10pt running text, \lllsize (8pt) is too small for the A in LaTeX.
                   2956:        % Revert to plain's \scriptsize, which is 7pt.
                   2957:        \count255=\the\fam $\fam\count255 \scriptstyle A$%
                   2958:      \else
                   2959:        % For 11pt, we can use our lllsize.
                   2960:        \selectfonts\lllsize A%
                   2961:      \fi
                   2962:      }%
                   2963:      \vss
                   2964:   }}%
                   2965:   \kern-.15em
                   2966:   \TeX
                   2967: }
1.1       misho    2968: 
1.1.1.2   misho    2969: % Some math mode symbols.
                   2970: \def\bullet{$\ptexbullet$}
                   2971: \def\geq{\ifmmode \ge\else $\ge$\fi}
                   2972: \def\leq{\ifmmode \le\else $\le$\fi}
                   2973: \def\minus{\ifmmode -\else $-$\fi}
1.1       misho    2974: 
1.1.1.2   misho    2975: % @dots{} outputs an ellipsis using the current font.
                   2976: % We do .5em per period so that it has the same spacing in the cm
                   2977: % typewriter fonts as three actual period characters; on the other hand,
                   2978: % in other typewriter fonts three periods are wider than 1.5em.  So do
                   2979: % whichever is larger.
1.1       misho    2980: %
1.1.1.2   misho    2981: \def\dots{%
                   2982:   \leavevmode
                   2983:   \setbox0=\hbox{...}% get width of three periods
                   2984:   \ifdim\wd0 > 1.5em
                   2985:     \dimen0 = \wd0
                   2986:   \else
                   2987:     \dimen0 = 1.5em
1.1       misho    2988:   \fi
1.1.1.2   misho    2989:   \hbox to \dimen0{%
                   2990:     \hskip 0pt plus.25fil
                   2991:     .\hskip 0pt plus1fil
                   2992:     .\hskip 0pt plus1fil
                   2993:     .\hskip 0pt plus.5fil
                   2994:   }%
1.1       misho    2995: }
                   2996: 
1.1.1.2   misho    2997: % @enddots{} is an end-of-sentence ellipsis.
1.1       misho    2998: %
1.1.1.2   misho    2999: \def\enddots{%
                   3000:   \dots
                   3001:   \spacefactor=\endofsentencespacefactor
1.1       misho    3002: }
                   3003: 
                   3004: % @point{}, @result{}, @expansion{}, @print{}, @equiv{}.
                   3005: %
                   3006: % Since these characters are used in examples, they should be an even number of
                   3007: % \tt widths. Each \tt character is 1en, so two makes it 1em.
                   3008: %
                   3009: \def\point{$\star$}
                   3010: \def\arrow{\leavevmode\raise.05ex\hbox to 1em{\hfil$\rightarrow$\hfil}}
                   3011: \def\result{\leavevmode\raise.05ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}
                   3012: \def\expansion{\leavevmode\hbox to 1em{\hfil$\mapsto$\hfil}}
                   3013: \def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}
                   3014: \def\equiv{\leavevmode\hbox to 1em{\hfil$\ptexequiv$\hfil}}
                   3015: 
                   3016: % The @error{} command.
                   3017: % Adapted from the TeXbook's \boxit.
                   3018: %
                   3019: \newbox\errorbox
                   3020: %
                   3021: {\tentt \global\dimen0 = 3em}% Width of the box.
                   3022: \dimen2 = .55pt % Thickness of rules
                   3023: % The text. (`r' is open on the right, `e' somewhat less so on the left.)
1.1.1.2   misho    3024: \setbox0 = \hbox{\kern-.75pt \reducedsf \putworderror\kern-1.5pt}
1.1       misho    3025: %
                   3026: \setbox\errorbox=\hbox to \dimen0{\hfil
                   3027:    \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right.
                   3028:    \advance\hsize by -2\dimen2 % Rules.
                   3029:    \vbox{%
                   3030:       \hrule height\dimen2
                   3031:       \hbox{\vrule width\dimen2 \kern3pt          % Space to left of text.
                   3032:          \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below.
                   3033:          \kern3pt\vrule width\dimen2}% Space to right.
                   3034:       \hrule height\dimen2}
                   3035:     \hfil}
                   3036: %
                   3037: \def\error{\leavevmode\lower.7ex\copy\errorbox}
                   3038: 
                   3039: % @pounds{} is a sterling sign, which Knuth put in the CM italic font.
                   3040: %
                   3041: \def\pounds{{\it\$}}
                   3042: 
                   3043: % @euro{} comes from a separate font, depending on the current style.
                   3044: % We use the free feym* fonts from the eurosym package by Henrik
                   3045: % Theiling, which support regular, slanted, bold and bold slanted (and
                   3046: % "outlined" (blackboard board, sort of) versions, which we don't need).
                   3047: % It is available from http://www.ctan.org/tex-archive/fonts/eurosym.
                   3048: %
                   3049: % Although only regular is the truly official Euro symbol, we ignore
                   3050: % that.  The Euro is designed to be slightly taller than the regular
                   3051: % font height.
                   3052: %
                   3053: % feymr - regular
                   3054: % feymo - slanted
                   3055: % feybr - bold
                   3056: % feybo - bold slanted
                   3057: %
                   3058: % There is no good (free) typewriter version, to my knowledge.
                   3059: % A feymr10 euro is ~7.3pt wide, while a normal cmtt10 char is ~5.25pt wide.
                   3060: % Hmm.
                   3061: %
                   3062: % Also doesn't work in math.  Do we need to do math with euro symbols?
                   3063: % Hope not.
                   3064: %
                   3065: %
                   3066: \def\euro{{\eurofont e}}
                   3067: \def\eurofont{%
                   3068:   % We set the font at each command, rather than predefining it in
                   3069:   % \textfonts and the other font-switching commands, so that
                   3070:   % installations which never need the symbol don't have to have the
                   3071:   % font installed.
                   3072:   %
                   3073:   % There is only one designed size (nominal 10pt), so we always scale
                   3074:   % that to the current nominal size.
                   3075:   %
                   3076:   % By the way, simply using "at 1em" works for cmr10 and the like, but
                   3077:   % does not work for cmbx10 and other extended/shrunken fonts.
                   3078:   %
                   3079:   \def\eurosize{\csname\curfontsize nominalsize\endcsname}%
                   3080:   %
                   3081:   \ifx\curfontstyle\bfstylename
                   3082:     % bold:
                   3083:     \font\thiseurofont = \ifusingit{feybo10}{feybr10} at \eurosize
                   3084:   \else
                   3085:     % regular:
                   3086:     \font\thiseurofont = \ifusingit{feymo10}{feymr10} at \eurosize
                   3087:   \fi
                   3088:   \thiseurofont
                   3089: }
                   3090: 
                   3091: % Glyphs from the EC fonts.  We don't use \let for the aliases, because
                   3092: % sometimes we redefine the original macro, and the alias should reflect
                   3093: % the redefinition.
                   3094: %
                   3095: % Use LaTeX names for the Icelandic letters.
                   3096: \def\DH{{\ecfont \char"D0}} % Eth
                   3097: \def\dh{{\ecfont \char"F0}} % eth
                   3098: \def\TH{{\ecfont \char"DE}} % Thorn
                   3099: \def\th{{\ecfont \char"FE}} % thorn
                   3100: %
                   3101: \def\guillemetleft{{\ecfont \char"13}}
                   3102: \def\guillemotleft{\guillemetleft}
                   3103: \def\guillemetright{{\ecfont \char"14}}
                   3104: \def\guillemotright{\guillemetright}
                   3105: \def\guilsinglleft{{\ecfont \char"0E}}
                   3106: \def\guilsinglright{{\ecfont \char"0F}}
                   3107: \def\quotedblbase{{\ecfont \char"12}}
                   3108: \def\quotesinglbase{{\ecfont \char"0D}}
                   3109: %
                   3110: % This positioning is not perfect (see the ogonek LaTeX package), but
                   3111: % we have the precomposed glyphs for the most common cases.  We put the
                   3112: % tests to use those glyphs in the single \ogonek macro so we have fewer
                   3113: % dummy definitions to worry about for index entries, etc.
                   3114: %
                   3115: % ogonek is also used with other letters in Lithuanian (IOU), but using
                   3116: % the precomposed glyphs for those is not so easy since they aren't in
                   3117: % the same EC font.
                   3118: \def\ogonek#1{{%
                   3119:   \def\temp{#1}%
                   3120:   \ifx\temp\macrocharA\Aogonek
                   3121:   \else\ifx\temp\macrochara\aogonek
                   3122:   \else\ifx\temp\macrocharE\Eogonek
                   3123:   \else\ifx\temp\macrochare\eogonek
                   3124:   \else
                   3125:     \ecfont \setbox0=\hbox{#1}%
                   3126:     \ifdim\ht0=1ex\accent"0C #1%
                   3127:     \else\ooalign{\unhbox0\crcr\hidewidth\char"0C \hidewidth}%
                   3128:     \fi
                   3129:   \fi\fi\fi\fi
                   3130:   }%
                   3131: }
                   3132: \def\Aogonek{{\ecfont \char"81}}\def\macrocharA{A}
                   3133: \def\aogonek{{\ecfont \char"A1}}\def\macrochara{a}
                   3134: \def\Eogonek{{\ecfont \char"86}}\def\macrocharE{E}
                   3135: \def\eogonek{{\ecfont \char"A6}}\def\macrochare{e}
                   3136: %
                   3137: % Use the ec* fonts (cm-super in outline format) for non-CM glyphs.
                   3138: \def\ecfont{%
                   3139:   % We can't distinguish serif/sans and italic/slanted, but this
                   3140:   % is used for crude hacks anyway (like adding French and German
                   3141:   % quotes to documents typeset with CM, where we lose kerning), so
                   3142:   % hopefully nobody will notice/care.
                   3143:   \edef\ecsize{\csname\curfontsize ecsize\endcsname}%
                   3144:   \edef\nominalsize{\csname\curfontsize nominalsize\endcsname}%
                   3145:   \ifx\curfontstyle\bfstylename
                   3146:     % bold:
                   3147:     \font\thisecfont = ecb\ifusingit{i}{x}\ecsize \space at \nominalsize
                   3148:   \else
                   3149:     % regular:
                   3150:     \font\thisecfont = ec\ifusingit{ti}{rm}\ecsize \space at \nominalsize
                   3151:   \fi
                   3152:   \thisecfont
                   3153: }
                   3154: 
                   3155: % @registeredsymbol - R in a circle.  The font for the R should really
                   3156: % be smaller yet, but lllsize is the best we can do for now.
                   3157: % Adapted from the plain.tex definition of \copyright.
                   3158: %
                   3159: \def\registeredsymbol{%
                   3160:   $^{{\ooalign{\hfil\raise.07ex\hbox{\selectfonts\lllsize R}%
                   3161:                \hfil\crcr\Orb}}%
                   3162:     }$%
                   3163: }
                   3164: 
                   3165: % @textdegree - the normal degrees sign.
                   3166: %
                   3167: \def\textdegree{$^\circ$}
                   3168: 
                   3169: % Laurent Siebenmann reports \Orb undefined with:
                   3170: %  Textures 1.7.7 (preloaded format=plain 93.10.14)  (68K)  16 APR 2004 02:38
                   3171: % so we'll define it if necessary.
                   3172: %
1.1.1.2   misho    3173: \ifx\Orb\thisisundefined
1.1       misho    3174: \def\Orb{\mathhexbox20D}
                   3175: \fi
                   3176: 
                   3177: % Quotes.
                   3178: \chardef\quotedblleft="5C
                   3179: \chardef\quotedblright=`\"
                   3180: \chardef\quoteleft=`\`
                   3181: \chardef\quoteright=`\'
                   3182: 
                   3183: 
                   3184: \message{page headings,}
                   3185: 
                   3186: \newskip\titlepagetopglue \titlepagetopglue = 1.5in
                   3187: \newskip\titlepagebottomglue \titlepagebottomglue = 2pc
                   3188: 
                   3189: % First the title page.  Must do @settitle before @titlepage.
                   3190: \newif\ifseenauthor
                   3191: \newif\iffinishedtitlepage
                   3192: 
                   3193: % Do an implicit @contents or @shortcontents after @end titlepage if the
                   3194: % user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage.
                   3195: %
                   3196: \newif\ifsetcontentsaftertitlepage
                   3197:  \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue
                   3198: \newif\ifsetshortcontentsaftertitlepage
                   3199:  \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue
                   3200: 
1.1.1.2   misho    3201: \parseargdef\shorttitlepage{%
                   3202:   \begingroup \hbox{}\vskip 1.5in \chaprm \centerline{#1}%
                   3203:   \endgroup\page\hbox{}\page}
1.1       misho    3204: 
                   3205: \envdef\titlepage{%
                   3206:   % Open one extra group, as we want to close it in the middle of \Etitlepage.
                   3207:   \begingroup
                   3208:     \parindent=0pt \textfonts
                   3209:     % Leave some space at the very top of the page.
                   3210:     \vglue\titlepagetopglue
                   3211:     % No rule at page bottom unless we print one at the top with @title.
                   3212:     \finishedtitlepagetrue
                   3213:     %
                   3214:     % Most title ``pages'' are actually two pages long, with space
                   3215:     % at the top of the second.  We don't want the ragged left on the second.
                   3216:     \let\oldpage = \page
                   3217:     \def\page{%
                   3218:       \iffinishedtitlepage\else
                   3219:         \finishtitlepage
                   3220:       \fi
                   3221:       \let\page = \oldpage
                   3222:       \page
                   3223:       \null
                   3224:     }%
                   3225: }
                   3226: 
                   3227: \def\Etitlepage{%
                   3228:     \iffinishedtitlepage\else
                   3229:        \finishtitlepage
                   3230:     \fi
                   3231:     % It is important to do the page break before ending the group,
                   3232:     % because the headline and footline are only empty inside the group.
                   3233:     % If we use the new definition of \page, we always get a blank page
                   3234:     % after the title page, which we certainly don't want.
                   3235:     \oldpage
                   3236:   \endgroup
                   3237:   %
                   3238:   % Need this before the \...aftertitlepage checks so that if they are
                   3239:   % in effect the toc pages will come out with page numbers.
                   3240:   \HEADINGSon
                   3241:   %
                   3242:   % If they want short, they certainly want long too.
                   3243:   \ifsetshortcontentsaftertitlepage
                   3244:     \shortcontents
                   3245:     \contents
                   3246:     \global\let\shortcontents = \relax
                   3247:     \global\let\contents = \relax
                   3248:   \fi
                   3249:   %
                   3250:   \ifsetcontentsaftertitlepage
                   3251:     \contents
                   3252:     \global\let\contents = \relax
                   3253:     \global\let\shortcontents = \relax
                   3254:   \fi
                   3255: }
                   3256: 
                   3257: \def\finishtitlepage{%
                   3258:   \vskip4pt \hrule height 2pt width \hsize
                   3259:   \vskip\titlepagebottomglue
                   3260:   \finishedtitlepagetrue
                   3261: }
                   3262: 
1.1.1.2   misho    3263: % Macros to be used within @titlepage:
1.1       misho    3264: 
                   3265: \let\subtitlerm=\tenrm
                   3266: \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}
                   3267: 
                   3268: \parseargdef\title{%
                   3269:   \checkenv\titlepage
                   3270:   \leftline{\titlefonts\rmisbold #1}
                   3271:   % print a rule at the page bottom also.
                   3272:   \finishedtitlepagefalse
                   3273:   \vskip4pt \hrule height 4pt width \hsize \vskip4pt
                   3274: }
                   3275: 
                   3276: \parseargdef\subtitle{%
                   3277:   \checkenv\titlepage
                   3278:   {\subtitlefont \rightline{#1}}%
                   3279: }
                   3280: 
                   3281: % @author should come last, but may come many times.
                   3282: % It can also be used inside @quotation.
                   3283: %
                   3284: \parseargdef\author{%
                   3285:   \def\temp{\quotation}%
                   3286:   \ifx\thisenv\temp
                   3287:     \def\quotationauthor{#1}% printed in \Equotation.
                   3288:   \else
                   3289:     \checkenv\titlepage
                   3290:     \ifseenauthor\else \vskip 0pt plus 1filll \seenauthortrue \fi
                   3291:     {\secfonts\rmisbold \leftline{#1}}%
                   3292:   \fi
                   3293: }
                   3294: 
                   3295: 
1.1.1.2   misho    3296: % Set up page headings and footings.
1.1       misho    3297: 
                   3298: \let\thispage=\folio
                   3299: 
                   3300: \newtoks\evenheadline    % headline on even pages
                   3301: \newtoks\oddheadline     % headline on odd pages
                   3302: \newtoks\evenfootline    % footline on even pages
                   3303: \newtoks\oddfootline     % footline on odd pages
                   3304: 
                   3305: % Now make TeX use those variables
                   3306: \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
                   3307:                             \else \the\evenheadline \fi}}
                   3308: \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
                   3309:                             \else \the\evenfootline \fi}\HEADINGShook}
                   3310: \let\HEADINGShook=\relax
                   3311: 
                   3312: % Commands to set those variables.
                   3313: % For example, this is what  @headings on  does
                   3314: % @evenheading @thistitle|@thispage|@thischapter
                   3315: % @oddheading @thischapter|@thispage|@thistitle
                   3316: % @evenfooting @thisfile||
                   3317: % @oddfooting ||@thisfile
                   3318: 
                   3319: 
                   3320: \def\evenheading{\parsearg\evenheadingxxx}
                   3321: \def\evenheadingxxx #1{\evenheadingyyy #1\|\|\|\|\finish}
                   3322: \def\evenheadingyyy #1\|#2\|#3\|#4\finish{%
                   3323: \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
                   3324: 
                   3325: \def\oddheading{\parsearg\oddheadingxxx}
                   3326: \def\oddheadingxxx #1{\oddheadingyyy #1\|\|\|\|\finish}
                   3327: \def\oddheadingyyy #1\|#2\|#3\|#4\finish{%
                   3328: \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
                   3329: 
                   3330: \parseargdef\everyheading{\oddheadingxxx{#1}\evenheadingxxx{#1}}%
                   3331: 
                   3332: \def\evenfooting{\parsearg\evenfootingxxx}
                   3333: \def\evenfootingxxx #1{\evenfootingyyy #1\|\|\|\|\finish}
                   3334: \def\evenfootingyyy #1\|#2\|#3\|#4\finish{%
                   3335: \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
                   3336: 
                   3337: \def\oddfooting{\parsearg\oddfootingxxx}
                   3338: \def\oddfootingxxx #1{\oddfootingyyy #1\|\|\|\|\finish}
                   3339: \def\oddfootingyyy #1\|#2\|#3\|#4\finish{%
                   3340:   \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}%
                   3341:   %
                   3342:   % Leave some space for the footline.  Hopefully ok to assume
                   3343:   % @evenfooting will not be used by itself.
                   3344:   \global\advance\pageheight by -12pt
                   3345:   \global\advance\vsize by -12pt
                   3346: }
                   3347: 
                   3348: \parseargdef\everyfooting{\oddfootingxxx{#1}\evenfootingxxx{#1}}
                   3349: 
                   3350: % @evenheadingmarks top     \thischapter <- chapter at the top of a page
                   3351: % @evenheadingmarks bottom  \thischapter <- chapter at the bottom of a page
                   3352: %
                   3353: % The same set of arguments for:
                   3354: %
                   3355: % @oddheadingmarks
                   3356: % @evenfootingmarks
                   3357: % @oddfootingmarks
                   3358: % @everyheadingmarks
                   3359: % @everyfootingmarks
                   3360: 
                   3361: \def\evenheadingmarks{\headingmarks{even}{heading}}
                   3362: \def\oddheadingmarks{\headingmarks{odd}{heading}}
                   3363: \def\evenfootingmarks{\headingmarks{even}{footing}}
                   3364: \def\oddfootingmarks{\headingmarks{odd}{footing}}
                   3365: \def\everyheadingmarks#1 {\headingmarks{even}{heading}{#1}
                   3366:                           \headingmarks{odd}{heading}{#1} }
                   3367: \def\everyfootingmarks#1 {\headingmarks{even}{footing}{#1}
                   3368:                           \headingmarks{odd}{footing}{#1} }
                   3369: % #1 = even/odd, #2 = heading/footing, #3 = top/bottom.
                   3370: \def\headingmarks#1#2#3 {%
                   3371:   \expandafter\let\expandafter\temp \csname get#3headingmarks\endcsname
                   3372:   \global\expandafter\let\csname get#1#2marks\endcsname \temp
                   3373: }
                   3374: 
                   3375: \everyheadingmarks bottom
                   3376: \everyfootingmarks bottom
                   3377: 
                   3378: % @headings double      turns headings on for double-sided printing.
                   3379: % @headings single      turns headings on for single-sided printing.
                   3380: % @headings off         turns them off.
                   3381: % @headings on          same as @headings double, retained for compatibility.
                   3382: % @headings after       turns on double-sided headings after this page.
                   3383: % @headings doubleafter turns on double-sided headings after this page.
                   3384: % @headings singleafter turns on single-sided headings after this page.
                   3385: % By default, they are off at the start of a document,
                   3386: % and turned `on' after @end titlepage.
                   3387: 
                   3388: \def\headings #1 {\csname HEADINGS#1\endcsname}
                   3389: 
1.1.1.2   misho    3390: \def\headingsoff{% non-global headings elimination
                   3391:   \evenheadline={\hfil}\evenfootline={\hfil}%
                   3392:    \oddheadline={\hfil}\oddfootline={\hfil}%
                   3393: }
                   3394: 
                   3395: \def\HEADINGSoff{{\globaldefs=1 \headingsoff}} % global setting
                   3396: \HEADINGSoff  % it's the default
                   3397: 
1.1       misho    3398: % When we turn headings on, set the page number to 1.
                   3399: % For double-sided printing, put current file name in lower left corner,
                   3400: % chapter name on inside top of right hand pages, document
                   3401: % title on inside top of left hand pages, and page numbers on outside top
                   3402: % edge of all pages.
                   3403: \def\HEADINGSdouble{%
                   3404: \global\pageno=1
                   3405: \global\evenfootline={\hfil}
                   3406: \global\oddfootline={\hfil}
                   3407: \global\evenheadline={\line{\folio\hfil\thistitle}}
                   3408: \global\oddheadline={\line{\thischapter\hfil\folio}}
                   3409: \global\let\contentsalignmacro = \chapoddpage
                   3410: }
                   3411: \let\contentsalignmacro = \chappager
                   3412: 
                   3413: % For single-sided printing, chapter title goes across top left of page,
                   3414: % page number on top right.
                   3415: \def\HEADINGSsingle{%
                   3416: \global\pageno=1
                   3417: \global\evenfootline={\hfil}
                   3418: \global\oddfootline={\hfil}
                   3419: \global\evenheadline={\line{\thischapter\hfil\folio}}
                   3420: \global\oddheadline={\line{\thischapter\hfil\folio}}
                   3421: \global\let\contentsalignmacro = \chappager
                   3422: }
                   3423: \def\HEADINGSon{\HEADINGSdouble}
                   3424: 
                   3425: \def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex}
                   3426: \let\HEADINGSdoubleafter=\HEADINGSafter
                   3427: \def\HEADINGSdoublex{%
                   3428: \global\evenfootline={\hfil}
                   3429: \global\oddfootline={\hfil}
                   3430: \global\evenheadline={\line{\folio\hfil\thistitle}}
                   3431: \global\oddheadline={\line{\thischapter\hfil\folio}}
                   3432: \global\let\contentsalignmacro = \chapoddpage
                   3433: }
                   3434: 
                   3435: \def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
                   3436: \def\HEADINGSsinglex{%
                   3437: \global\evenfootline={\hfil}
                   3438: \global\oddfootline={\hfil}
                   3439: \global\evenheadline={\line{\thischapter\hfil\folio}}
                   3440: \global\oddheadline={\line{\thischapter\hfil\folio}}
                   3441: \global\let\contentsalignmacro = \chappager
                   3442: }
                   3443: 
                   3444: % Subroutines used in generating headings
                   3445: % This produces Day Month Year style of output.
                   3446: % Only define if not already defined, in case a txi-??.tex file has set
                   3447: % up a different format (e.g., txi-cs.tex does this).
1.1.1.2   misho    3448: \ifx\today\thisisundefined
1.1       misho    3449: \def\today{%
                   3450:   \number\day\space
                   3451:   \ifcase\month
                   3452:   \or\putwordMJan\or\putwordMFeb\or\putwordMMar\or\putwordMApr
                   3453:   \or\putwordMMay\or\putwordMJun\or\putwordMJul\or\putwordMAug
                   3454:   \or\putwordMSep\or\putwordMOct\or\putwordMNov\or\putwordMDec
                   3455:   \fi
                   3456:   \space\number\year}
                   3457: \fi
                   3458: 
                   3459: % @settitle line...  specifies the title of the document, for headings.
                   3460: % It generates no output of its own.
                   3461: \def\thistitle{\putwordNoTitle}
                   3462: \def\settitle{\parsearg{\gdef\thistitle}}
                   3463: 
                   3464: 
                   3465: \message{tables,}
                   3466: % Tables -- @table, @ftable, @vtable, @item(x).
                   3467: 
                   3468: % default indentation of table text
                   3469: \newdimen\tableindent \tableindent=.8in
                   3470: % default indentation of @itemize and @enumerate text
                   3471: \newdimen\itemindent  \itemindent=.3in
                   3472: % margin between end of table item and start of table text.
                   3473: \newdimen\itemmargin  \itemmargin=.1in
                   3474: 
                   3475: % used internally for \itemindent minus \itemmargin
                   3476: \newdimen\itemmax
                   3477: 
                   3478: % Note @table, @ftable, and @vtable define @item, @itemx, etc., with
                   3479: % these defs.
                   3480: % They also define \itemindex
                   3481: % to index the item name in whatever manner is desired (perhaps none).
                   3482: 
                   3483: \newif\ifitemxneedsnegativevskip
                   3484: 
                   3485: \def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi}
                   3486: 
                   3487: \def\internalBitem{\smallbreak \parsearg\itemzzz}
                   3488: \def\internalBitemx{\itemxpar \parsearg\itemzzz}
                   3489: 
                   3490: \def\itemzzz #1{\begingroup %
                   3491:   \advance\hsize by -\rightskip
                   3492:   \advance\hsize by -\tableindent
                   3493:   \setbox0=\hbox{\itemindicate{#1}}%
                   3494:   \itemindex{#1}%
                   3495:   \nobreak % This prevents a break before @itemx.
                   3496:   %
                   3497:   % If the item text does not fit in the space we have, put it on a line
                   3498:   % by itself, and do not allow a page break either before or after that
                   3499:   % line.  We do not start a paragraph here because then if the next
                   3500:   % command is, e.g., @kindex, the whatsit would get put into the
                   3501:   % horizontal list on a line by itself, resulting in extra blank space.
                   3502:   \ifdim \wd0>\itemmax
                   3503:     %
                   3504:     % Make this a paragraph so we get the \parskip glue and wrapping,
                   3505:     % but leave it ragged-right.
                   3506:     \begingroup
                   3507:       \advance\leftskip by-\tableindent
                   3508:       \advance\hsize by\tableindent
1.1.1.2   misho    3509:       \advance\rightskip by0pt plus1fil\relax
1.1       misho    3510:       \leavevmode\unhbox0\par
                   3511:     \endgroup
                   3512:     %
                   3513:     % We're going to be starting a paragraph, but we don't want the
                   3514:     % \parskip glue -- logically it's part of the @item we just started.
                   3515:     \nobreak \vskip-\parskip
                   3516:     %
                   3517:     % Stop a page break at the \parskip glue coming up.  However, if
                   3518:     % what follows is an environment such as @example, there will be no
                   3519:     % \parskip glue; then the negative vskip we just inserted would
                   3520:     % cause the example and the item to crash together.  So we use this
                   3521:     % bizarre value of 10001 as a signal to \aboveenvbreak to insert
                   3522:     % \parskip glue after all.  Section titles are handled this way also.
                   3523:     %
                   3524:     \penalty 10001
                   3525:     \endgroup
                   3526:     \itemxneedsnegativevskipfalse
                   3527:   \else
                   3528:     % The item text fits into the space.  Start a paragraph, so that the
                   3529:     % following text (if any) will end up on the same line.
                   3530:     \noindent
                   3531:     % Do this with kerns and \unhbox so that if there is a footnote in
                   3532:     % the item text, it can migrate to the main vertical list and
                   3533:     % eventually be printed.
                   3534:     \nobreak\kern-\tableindent
                   3535:     \dimen0 = \itemmax  \advance\dimen0 by \itemmargin \advance\dimen0 by -\wd0
                   3536:     \unhbox0
                   3537:     \nobreak\kern\dimen0
                   3538:     \endgroup
                   3539:     \itemxneedsnegativevskiptrue
                   3540:   \fi
                   3541: }
                   3542: 
                   3543: \def\item{\errmessage{@item while not in a list environment}}
                   3544: \def\itemx{\errmessage{@itemx while not in a list environment}}
                   3545: 
                   3546: % @table, @ftable, @vtable.
                   3547: \envdef\table{%
                   3548:   \let\itemindex\gobble
                   3549:   \tablecheck{table}%
                   3550: }
                   3551: \envdef\ftable{%
                   3552:   \def\itemindex ##1{\doind {fn}{\code{##1}}}%
                   3553:   \tablecheck{ftable}%
                   3554: }
                   3555: \envdef\vtable{%
                   3556:   \def\itemindex ##1{\doind {vr}{\code{##1}}}%
                   3557:   \tablecheck{vtable}%
                   3558: }
                   3559: \def\tablecheck#1{%
                   3560:   \ifnum \the\catcode`\^^M=\active
                   3561:     \endgroup
                   3562:     \errmessage{This command won't work in this context; perhaps the problem is
                   3563:       that we are \inenvironment\thisenv}%
                   3564:     \def\next{\doignore{#1}}%
                   3565:   \else
                   3566:     \let\next\tablex
                   3567:   \fi
                   3568:   \next
                   3569: }
                   3570: \def\tablex#1{%
                   3571:   \def\itemindicate{#1}%
                   3572:   \parsearg\tabley
                   3573: }
                   3574: \def\tabley#1{%
                   3575:   {%
                   3576:     \makevalueexpandable
                   3577:     \edef\temp{\noexpand\tablez #1\space\space\space}%
                   3578:     \expandafter
                   3579:   }\temp \endtablez
                   3580: }
                   3581: \def\tablez #1 #2 #3 #4\endtablez{%
                   3582:   \aboveenvbreak
                   3583:   \ifnum 0#1>0 \advance \leftskip by #1\mil \fi
                   3584:   \ifnum 0#2>0 \tableindent=#2\mil \fi
                   3585:   \ifnum 0#3>0 \advance \rightskip by #3\mil \fi
                   3586:   \itemmax=\tableindent
                   3587:   \advance \itemmax by -\itemmargin
                   3588:   \advance \leftskip by \tableindent
                   3589:   \exdentamount=\tableindent
                   3590:   \parindent = 0pt
                   3591:   \parskip = \smallskipamount
                   3592:   \ifdim \parskip=0pt \parskip=2pt \fi
                   3593:   \let\item = \internalBitem
                   3594:   \let\itemx = \internalBitemx
                   3595: }
                   3596: \def\Etable{\endgraf\afterenvbreak}
                   3597: \let\Eftable\Etable
                   3598: \let\Evtable\Etable
                   3599: \let\Eitemize\Etable
                   3600: \let\Eenumerate\Etable
                   3601: 
                   3602: % This is the counter used by @enumerate, which is really @itemize
                   3603: 
                   3604: \newcount \itemno
                   3605: 
                   3606: \envdef\itemize{\parsearg\doitemize}
                   3607: 
                   3608: \def\doitemize#1{%
                   3609:   \aboveenvbreak
                   3610:   \itemmax=\itemindent
                   3611:   \advance\itemmax by -\itemmargin
                   3612:   \advance\leftskip by \itemindent
                   3613:   \exdentamount=\itemindent
                   3614:   \parindent=0pt
                   3615:   \parskip=\smallskipamount
                   3616:   \ifdim\parskip=0pt \parskip=2pt \fi
                   3617:   %
                   3618:   % Try typesetting the item mark that if the document erroneously says
                   3619:   % something like @itemize @samp (intending @table), there's an error
                   3620:   % right away at the @itemize.  It's not the best error message in the
                   3621:   % world, but it's better than leaving it to the @item.  This means if
                   3622:   % the user wants an empty mark, they have to say @w{} not just @w.
                   3623:   \def\itemcontents{#1}%
                   3624:   \setbox0 = \hbox{\itemcontents}%
                   3625:   %
                   3626:   % @itemize with no arg is equivalent to @itemize @bullet.
                   3627:   \ifx\itemcontents\empty\def\itemcontents{\bullet}\fi
                   3628:   %
                   3629:   \let\item=\itemizeitem
                   3630: }
                   3631: 
                   3632: % Definition of @item while inside @itemize and @enumerate.
                   3633: %
                   3634: \def\itemizeitem{%
                   3635:   \advance\itemno by 1  % for enumerations
                   3636:   {\let\par=\endgraf \smallbreak}% reasonable place to break
                   3637:   {%
                   3638:    % If the document has an @itemize directly after a section title, a
                   3639:    % \nobreak will be last on the list, and \sectionheading will have
                   3640:    % done a \vskip-\parskip.  In that case, we don't want to zero
                   3641:    % parskip, or the item text will crash with the heading.  On the
                   3642:    % other hand, when there is normal text preceding the item (as there
                   3643:    % usually is), we do want to zero parskip, or there would be too much
                   3644:    % space.  In that case, we won't have a \nobreak before.  At least
                   3645:    % that's the theory.
                   3646:    \ifnum\lastpenalty<10000 \parskip=0in \fi
                   3647:    \noindent
                   3648:    \hbox to 0pt{\hss \itemcontents \kern\itemmargin}%
                   3649:    %
                   3650:    \vadjust{\penalty 1200}}% not good to break after first line of item.
                   3651:   \flushcr
                   3652: }
                   3653: 
                   3654: % \splitoff TOKENS\endmark defines \first to be the first token in
                   3655: % TOKENS, and \rest to be the remainder.
                   3656: %
                   3657: \def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%
                   3658: 
                   3659: % Allow an optional argument of an uppercase letter, lowercase letter,
                   3660: % or number, to specify the first label in the enumerated list.  No
                   3661: % argument is the same as `1'.
                   3662: %
                   3663: \envparseargdef\enumerate{\enumeratey #1  \endenumeratey}
                   3664: \def\enumeratey #1 #2\endenumeratey{%
                   3665:   % If we were given no argument, pretend we were given `1'.
                   3666:   \def\thearg{#1}%
                   3667:   \ifx\thearg\empty \def\thearg{1}\fi
                   3668:   %
                   3669:   % Detect if the argument is a single token.  If so, it might be a
                   3670:   % letter.  Otherwise, the only valid thing it can be is a number.
                   3671:   % (We will always have one token, because of the test we just made.
                   3672:   % This is a good thing, since \splitoff doesn't work given nothing at
                   3673:   % all -- the first parameter is undelimited.)
                   3674:   \expandafter\splitoff\thearg\endmark
                   3675:   \ifx\rest\empty
                   3676:     % Only one token in the argument.  It could still be anything.
                   3677:     % A ``lowercase letter'' is one whose \lccode is nonzero.
                   3678:     % An ``uppercase letter'' is one whose \lccode is both nonzero, and
                   3679:     %   not equal to itself.
                   3680:     % Otherwise, we assume it's a number.
                   3681:     %
                   3682:     % We need the \relax at the end of the \ifnum lines to stop TeX from
                   3683:     % continuing to look for a <number>.
                   3684:     %
                   3685:     \ifnum\lccode\expandafter`\thearg=0\relax
                   3686:       \numericenumerate % a number (we hope)
                   3687:     \else
                   3688:       % It's a letter.
                   3689:       \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax
                   3690:         \lowercaseenumerate % lowercase letter
                   3691:       \else
                   3692:         \uppercaseenumerate % uppercase letter
                   3693:       \fi
                   3694:     \fi
                   3695:   \else
                   3696:     % Multiple tokens in the argument.  We hope it's a number.
                   3697:     \numericenumerate
                   3698:   \fi
                   3699: }
                   3700: 
                   3701: % An @enumerate whose labels are integers.  The starting integer is
                   3702: % given in \thearg.
                   3703: %
                   3704: \def\numericenumerate{%
                   3705:   \itemno = \thearg
                   3706:   \startenumeration{\the\itemno}%
                   3707: }
                   3708: 
                   3709: % The starting (lowercase) letter is in \thearg.
                   3710: \def\lowercaseenumerate{%
                   3711:   \itemno = \expandafter`\thearg
                   3712:   \startenumeration{%
                   3713:     % Be sure we're not beyond the end of the alphabet.
                   3714:     \ifnum\itemno=0
                   3715:       \errmessage{No more lowercase letters in @enumerate; get a bigger
                   3716:                   alphabet}%
                   3717:     \fi
                   3718:     \char\lccode\itemno
                   3719:   }%
                   3720: }
                   3721: 
                   3722: % The starting (uppercase) letter is in \thearg.
                   3723: \def\uppercaseenumerate{%
                   3724:   \itemno = \expandafter`\thearg
                   3725:   \startenumeration{%
                   3726:     % Be sure we're not beyond the end of the alphabet.
                   3727:     \ifnum\itemno=0
                   3728:       \errmessage{No more uppercase letters in @enumerate; get a bigger
                   3729:                   alphabet}
                   3730:     \fi
                   3731:     \char\uccode\itemno
                   3732:   }%
                   3733: }
                   3734: 
                   3735: % Call \doitemize, adding a period to the first argument and supplying the
                   3736: % common last two arguments.  Also subtract one from the initial value in
                   3737: % \itemno, since @item increments \itemno.
                   3738: %
                   3739: \def\startenumeration#1{%
                   3740:   \advance\itemno by -1
                   3741:   \doitemize{#1.}\flushcr
                   3742: }
                   3743: 
                   3744: % @alphaenumerate and @capsenumerate are abbreviations for giving an arg
                   3745: % to @enumerate.
                   3746: %
                   3747: \def\alphaenumerate{\enumerate{a}}
                   3748: \def\capsenumerate{\enumerate{A}}
                   3749: \def\Ealphaenumerate{\Eenumerate}
                   3750: \def\Ecapsenumerate{\Eenumerate}
                   3751: 
                   3752: 
                   3753: % @multitable macros
                   3754: % Amy Hendrickson, 8/18/94, 3/6/96
                   3755: %
                   3756: % @multitable ... @end multitable will make as many columns as desired.
                   3757: % Contents of each column will wrap at width given in preamble.  Width
                   3758: % can be specified either with sample text given in a template line,
                   3759: % or in percent of \hsize, the current width of text on page.
                   3760: 
                   3761: % Table can continue over pages but will only break between lines.
                   3762: 
                   3763: % To make preamble:
                   3764: %
                   3765: % Either define widths of columns in terms of percent of \hsize:
                   3766: %   @multitable @columnfractions .25 .3 .45
                   3767: %   @item ...
                   3768: %
                   3769: %   Numbers following @columnfractions are the percent of the total
                   3770: %   current hsize to be used for each column. You may use as many
                   3771: %   columns as desired.
                   3772: 
                   3773: 
                   3774: % Or use a template:
                   3775: %   @multitable {Column 1 template} {Column 2 template} {Column 3 template}
                   3776: %   @item ...
                   3777: %   using the widest term desired in each column.
                   3778: 
                   3779: % Each new table line starts with @item, each subsequent new column
                   3780: % starts with @tab. Empty columns may be produced by supplying @tab's
                   3781: % with nothing between them for as many times as empty columns are needed,
                   3782: % ie, @tab@tab@tab will produce two empty columns.
                   3783: 
                   3784: % @item, @tab do not need to be on their own lines, but it will not hurt
                   3785: % if they are.
                   3786: 
                   3787: % Sample multitable:
                   3788: 
                   3789: %   @multitable {Column 1 template} {Column 2 template} {Column 3 template}
                   3790: %   @item first col stuff @tab second col stuff @tab third col
                   3791: %   @item
                   3792: %   first col stuff
                   3793: %   @tab
                   3794: %   second col stuff
                   3795: %   @tab
                   3796: %   third col
                   3797: %   @item first col stuff @tab second col stuff
                   3798: %   @tab Many paragraphs of text may be used in any column.
                   3799: %
                   3800: %         They will wrap at the width determined by the template.
                   3801: %   @item@tab@tab This will be in third column.
                   3802: %   @end multitable
                   3803: 
                   3804: % Default dimensions may be reset by user.
                   3805: % @multitableparskip is vertical space between paragraphs in table.
                   3806: % @multitableparindent is paragraph indent in table.
                   3807: % @multitablecolmargin is horizontal space to be left between columns.
                   3808: % @multitablelinespace is space to leave between table items, baseline
                   3809: %                                                            to baseline.
                   3810: %   0pt means it depends on current normal line spacing.
                   3811: %
                   3812: \newskip\multitableparskip
                   3813: \newskip\multitableparindent
                   3814: \newdimen\multitablecolspace
                   3815: \newskip\multitablelinespace
                   3816: \multitableparskip=0pt
                   3817: \multitableparindent=6pt
                   3818: \multitablecolspace=12pt
                   3819: \multitablelinespace=0pt
                   3820: 
                   3821: % Macros used to set up halign preamble:
                   3822: %
                   3823: \let\endsetuptable\relax
                   3824: \def\xendsetuptable{\endsetuptable}
                   3825: \let\columnfractions\relax
                   3826: \def\xcolumnfractions{\columnfractions}
                   3827: \newif\ifsetpercent
                   3828: 
                   3829: % #1 is the @columnfraction, usually a decimal number like .5, but might
                   3830: % be just 1.  We just use it, whatever it is.
                   3831: %
                   3832: \def\pickupwholefraction#1 {%
                   3833:   \global\advance\colcount by 1
                   3834:   \expandafter\xdef\csname col\the\colcount\endcsname{#1\hsize}%
                   3835:   \setuptable
                   3836: }
                   3837: 
                   3838: \newcount\colcount
                   3839: \def\setuptable#1{%
                   3840:   \def\firstarg{#1}%
                   3841:   \ifx\firstarg\xendsetuptable
                   3842:     \let\go = \relax
                   3843:   \else
                   3844:     \ifx\firstarg\xcolumnfractions
                   3845:       \global\setpercenttrue
                   3846:     \else
                   3847:       \ifsetpercent
                   3848:          \let\go\pickupwholefraction
                   3849:       \else
                   3850:          \global\advance\colcount by 1
                   3851:          \setbox0=\hbox{#1\unskip\space}% Add a normal word space as a
                   3852:                    % separator; typically that is always in the input, anyway.
                   3853:          \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
                   3854:       \fi
                   3855:     \fi
                   3856:     \ifx\go\pickupwholefraction
                   3857:       % Put the argument back for the \pickupwholefraction call, so
                   3858:       % we'll always have a period there to be parsed.
                   3859:       \def\go{\pickupwholefraction#1}%
                   3860:     \else
                   3861:       \let\go = \setuptable
                   3862:     \fi%
                   3863:   \fi
                   3864:   \go
                   3865: }
                   3866: 
                   3867: % multitable-only commands.
                   3868: %
                   3869: % @headitem starts a heading row, which we typeset in bold.
                   3870: % Assignments have to be global since we are inside the implicit group
                   3871: % of an alignment entry.  \everycr resets \everytab so we don't have to
                   3872: % undo it ourselves.
                   3873: \def\headitemfont{\b}% for people to use in the template row; not changeable
                   3874: \def\headitem{%
                   3875:   \checkenv\multitable
                   3876:   \crcr
                   3877:   \global\everytab={\bf}% can't use \headitemfont since the parsing differs
                   3878:   \the\everytab % for the first item
                   3879: }%
                   3880: %
                   3881: % A \tab used to include \hskip1sp.  But then the space in a template
                   3882: % line is not enough.  That is bad.  So let's go back to just `&' until
                   3883: % we again encounter the problem the 1sp was intended to solve.
                   3884: %                                      --karl, nathan@acm.org, 20apr99.
                   3885: \def\tab{\checkenv\multitable &\the\everytab}%
                   3886: 
                   3887: % @multitable ... @end multitable definitions:
                   3888: %
                   3889: \newtoks\everytab  % insert after every tab.
                   3890: %
                   3891: \envdef\multitable{%
                   3892:   \vskip\parskip
                   3893:   \startsavinginserts
                   3894:   %
                   3895:   % @item within a multitable starts a normal row.
                   3896:   % We use \def instead of \let so that if one of the multitable entries
                   3897:   % contains an @itemize, we don't choke on the \item (seen as \crcr aka
                   3898:   % \endtemplate) expanding \doitemize.
                   3899:   \def\item{\crcr}%
                   3900:   %
                   3901:   \tolerance=9500
                   3902:   \hbadness=9500
                   3903:   \setmultitablespacing
                   3904:   \parskip=\multitableparskip
                   3905:   \parindent=\multitableparindent
                   3906:   \overfullrule=0pt
                   3907:   \global\colcount=0
                   3908:   %
                   3909:   \everycr = {%
                   3910:     \noalign{%
                   3911:       \global\everytab={}%
                   3912:       \global\colcount=0 % Reset the column counter.
                   3913:       % Check for saved footnotes, etc.
                   3914:       \checkinserts
                   3915:       % Keeps underfull box messages off when table breaks over pages.
                   3916:       %\filbreak
                   3917:        % Maybe so, but it also creates really weird page breaks when the
                   3918:        % table breaks over pages. Wouldn't \vfil be better?  Wait until the
                   3919:        % problem manifests itself, so it can be fixed for real --karl.
                   3920:     }%
                   3921:   }%
                   3922:   %
                   3923:   \parsearg\domultitable
                   3924: }
                   3925: \def\domultitable#1{%
                   3926:   % To parse everything between @multitable and @item:
                   3927:   \setuptable#1 \endsetuptable
                   3928:   %
                   3929:   % This preamble sets up a generic column definition, which will
                   3930:   % be used as many times as user calls for columns.
                   3931:   % \vtop will set a single line and will also let text wrap and
                   3932:   % continue for many paragraphs if desired.
                   3933:   \halign\bgroup &%
                   3934:     \global\advance\colcount by 1
                   3935:     \multistrut
                   3936:     \vtop{%
                   3937:       % Use the current \colcount to find the correct column width:
                   3938:       \hsize=\expandafter\csname col\the\colcount\endcsname
                   3939:       %
                   3940:       % In order to keep entries from bumping into each other
                   3941:       % we will add a \leftskip of \multitablecolspace to all columns after
                   3942:       % the first one.
                   3943:       %
                   3944:       % If a template has been used, we will add \multitablecolspace
                   3945:       % to the width of each template entry.
                   3946:       %
                   3947:       % If the user has set preamble in terms of percent of \hsize we will
                   3948:       % use that dimension as the width of the column, and the \leftskip
                   3949:       % will keep entries from bumping into each other.  Table will start at
                   3950:       % left margin and final column will justify at right margin.
                   3951:       %
                   3952:       % Make sure we don't inherit \rightskip from the outer environment.
                   3953:       \rightskip=0pt
                   3954:       \ifnum\colcount=1
                   3955:        % The first column will be indented with the surrounding text.
                   3956:        \advance\hsize by\leftskip
                   3957:       \else
                   3958:        \ifsetpercent \else
                   3959:          % If user has not set preamble in terms of percent of \hsize
                   3960:          % we will advance \hsize by \multitablecolspace.
                   3961:          \advance\hsize by \multitablecolspace
                   3962:        \fi
                   3963:        % In either case we will make \leftskip=\multitablecolspace:
                   3964:       \leftskip=\multitablecolspace
                   3965:       \fi
                   3966:       % Ignoring space at the beginning and end avoids an occasional spurious
                   3967:       % blank line, when TeX decides to break the line at the space before the
                   3968:       % box from the multistrut, so the strut ends up on a line by itself.
                   3969:       % For example:
                   3970:       % @multitable @columnfractions .11 .89
                   3971:       % @item @code{#}
                   3972:       % @tab Legal holiday which is valid in major parts of the whole country.
                   3973:       % Is automatically provided with highlighting sequences respectively
                   3974:       % marking characters.
                   3975:       \noindent\ignorespaces##\unskip\multistrut
                   3976:     }\cr
                   3977: }
                   3978: \def\Emultitable{%
                   3979:   \crcr
                   3980:   \egroup % end the \halign
                   3981:   \global\setpercentfalse
                   3982: }
                   3983: 
                   3984: \def\setmultitablespacing{%
                   3985:   \def\multistrut{\strut}% just use the standard line spacing
                   3986:   %
                   3987:   % Compute \multitablelinespace (if not defined by user) for use in
                   3988:   % \multitableparskip calculation.  We used define \multistrut based on
                   3989:   % this, but (ironically) that caused the spacing to be off.
                   3990:   % See bug-texinfo report from Werner Lemberg, 31 Oct 2004 12:52:20 +0100.
                   3991: \ifdim\multitablelinespace=0pt
                   3992: \setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip
                   3993: \global\advance\multitablelinespace by-\ht0
                   3994: \fi
1.1.1.2   misho    3995: % Test to see if parskip is larger than space between lines of
                   3996: % table. If not, do nothing.
                   3997: %        If so, set to same dimension as multitablelinespace.
1.1       misho    3998: \ifdim\multitableparskip>\multitablelinespace
                   3999: \global\multitableparskip=\multitablelinespace
1.1.1.2   misho    4000: \global\advance\multitableparskip-7pt % to keep parskip somewhat smaller
                   4001:                                       % than skip between lines in the table.
1.1       misho    4002: \fi%
                   4003: \ifdim\multitableparskip=0pt
                   4004: \global\multitableparskip=\multitablelinespace
1.1.1.2   misho    4005: \global\advance\multitableparskip-7pt % to keep parskip somewhat smaller
                   4006:                                       % than skip between lines in the table.
1.1       misho    4007: \fi}
                   4008: 
                   4009: 
                   4010: \message{conditionals,}
                   4011: 
                   4012: % @iftex, @ifnotdocbook, @ifnothtml, @ifnotinfo, @ifnotplaintext,
                   4013: % @ifnotxml always succeed.  They currently do nothing; we don't
                   4014: % attempt to check whether the conditionals are properly nested.  But we
                   4015: % have to remember that they are conditionals, so that @end doesn't
                   4016: % attempt to close an environment group.
                   4017: %
                   4018: \def\makecond#1{%
                   4019:   \expandafter\let\csname #1\endcsname = \relax
                   4020:   \expandafter\let\csname iscond.#1\endcsname = 1
                   4021: }
                   4022: \makecond{iftex}
                   4023: \makecond{ifnotdocbook}
                   4024: \makecond{ifnothtml}
                   4025: \makecond{ifnotinfo}
                   4026: \makecond{ifnotplaintext}
                   4027: \makecond{ifnotxml}
                   4028: 
                   4029: % Ignore @ignore, @ifhtml, @ifinfo, and the like.
                   4030: %
                   4031: \def\direntry{\doignore{direntry}}
                   4032: \def\documentdescription{\doignore{documentdescription}}
                   4033: \def\docbook{\doignore{docbook}}
                   4034: \def\html{\doignore{html}}
                   4035: \def\ifdocbook{\doignore{ifdocbook}}
                   4036: \def\ifhtml{\doignore{ifhtml}}
                   4037: \def\ifinfo{\doignore{ifinfo}}
                   4038: \def\ifnottex{\doignore{ifnottex}}
                   4039: \def\ifplaintext{\doignore{ifplaintext}}
                   4040: \def\ifxml{\doignore{ifxml}}
                   4041: \def\ignore{\doignore{ignore}}
                   4042: \def\menu{\doignore{menu}}
                   4043: \def\xml{\doignore{xml}}
                   4044: 
                   4045: % Ignore text until a line `@end #1', keeping track of nested conditionals.
                   4046: %
                   4047: % A count to remember the depth of nesting.
                   4048: \newcount\doignorecount
                   4049: 
                   4050: \def\doignore#1{\begingroup
                   4051:   % Scan in ``verbatim'' mode:
                   4052:   \obeylines
                   4053:   \catcode`\@ = \other
                   4054:   \catcode`\{ = \other
                   4055:   \catcode`\} = \other
                   4056:   %
                   4057:   % Make sure that spaces turn into tokens that match what \doignoretext wants.
                   4058:   \spaceisspace
                   4059:   %
                   4060:   % Count number of #1's that we've seen.
                   4061:   \doignorecount = 0
                   4062:   %
                   4063:   % Swallow text until we reach the matching `@end #1'.
                   4064:   \dodoignore{#1}%
                   4065: }
                   4066: 
                   4067: { \catcode`_=11 % We want to use \_STOP_ which cannot appear in texinfo source.
                   4068:   \obeylines %
                   4069:   %
                   4070:   \gdef\dodoignore#1{%
                   4071:     % #1 contains the command name as a string, e.g., `ifinfo'.
                   4072:     %
                   4073:     % Define a command to find the next `@end #1'.
                   4074:     \long\def\doignoretext##1^^M@end #1{%
                   4075:       \doignoretextyyy##1^^M@#1\_STOP_}%
                   4076:     %
                   4077:     % And this command to find another #1 command, at the beginning of a
                   4078:     % line.  (Otherwise, we would consider a line `@c @ifset', for
                   4079:     % example, to count as an @ifset for nesting.)
                   4080:     \long\def\doignoretextyyy##1^^M@#1##2\_STOP_{\doignoreyyy{##2}\_STOP_}%
                   4081:     %
                   4082:     % And now expand that command.
                   4083:     \doignoretext ^^M%
                   4084:   }%
                   4085: }
                   4086: 
                   4087: \def\doignoreyyy#1{%
                   4088:   \def\temp{#1}%
                   4089:   \ifx\temp\empty                      % Nothing found.
                   4090:     \let\next\doignoretextzzz
                   4091:   \else                                        % Found a nested condition, ...
                   4092:     \advance\doignorecount by 1
                   4093:     \let\next\doignoretextyyy          % ..., look for another.
                   4094:     % If we're here, #1 ends with ^^M\ifinfo (for example).
                   4095:   \fi
                   4096:   \next #1% the token \_STOP_ is present just after this macro.
                   4097: }
                   4098: 
                   4099: % We have to swallow the remaining "\_STOP_".
                   4100: %
                   4101: \def\doignoretextzzz#1{%
                   4102:   \ifnum\doignorecount = 0     % We have just found the outermost @end.
                   4103:     \let\next\enddoignore
                   4104:   \else                                % Still inside a nested condition.
                   4105:     \advance\doignorecount by -1
                   4106:     \let\next\doignoretext      % Look for the next @end.
                   4107:   \fi
                   4108:   \next
                   4109: }
                   4110: 
                   4111: % Finish off ignored text.
                   4112: { \obeylines%
                   4113:   % Ignore anything after the last `@end #1'; this matters in verbatim
                   4114:   % environments, where otherwise the newline after an ignored conditional
                   4115:   % would result in a blank line in the output.
                   4116:   \gdef\enddoignore#1^^M{\endgroup\ignorespaces}%
                   4117: }
                   4118: 
                   4119: 
                   4120: % @set VAR sets the variable VAR to an empty value.
                   4121: % @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
                   4122: %
                   4123: % Since we want to separate VAR from REST-OF-LINE (which might be
                   4124: % empty), we can't just use \parsearg; we have to insert a space of our
                   4125: % own to delimit the rest of the line, and then take it out again if we
                   4126: % didn't need it.
                   4127: % We rely on the fact that \parsearg sets \catcode`\ =10.
                   4128: %
                   4129: \parseargdef\set{\setyyy#1 \endsetyyy}
                   4130: \def\setyyy#1 #2\endsetyyy{%
                   4131:   {%
                   4132:     \makevalueexpandable
                   4133:     \def\temp{#2}%
                   4134:     \edef\next{\gdef\makecsname{SET#1}}%
                   4135:     \ifx\temp\empty
                   4136:       \next{}%
                   4137:     \else
                   4138:       \setzzz#2\endsetzzz
                   4139:     \fi
                   4140:   }%
                   4141: }
                   4142: % Remove the trailing space \setxxx inserted.
                   4143: \def\setzzz#1 \endsetzzz{\next{#1}}
                   4144: 
                   4145: % @clear VAR clears (i.e., unsets) the variable VAR.
                   4146: %
                   4147: \parseargdef\clear{%
                   4148:   {%
                   4149:     \makevalueexpandable
                   4150:     \global\expandafter\let\csname SET#1\endcsname=\relax
                   4151:   }%
                   4152: }
                   4153: 
                   4154: % @value{foo} gets the text saved in variable foo.
                   4155: \def\value{\begingroup\makevalueexpandable\valuexxx}
                   4156: \def\valuexxx#1{\expandablevalue{#1}\endgroup}
                   4157: {
                   4158:   \catcode`\- = \active \catcode`\_ = \active
                   4159:   %
                   4160:   \gdef\makevalueexpandable{%
                   4161:     \let\value = \expandablevalue
                   4162:     % We don't want these characters active, ...
                   4163:     \catcode`\-=\other \catcode`\_=\other
                   4164:     % ..., but we might end up with active ones in the argument if
                   4165:     % we're called from @code, as @code{@value{foo-bar_}}, though.
                   4166:     % So \let them to their normal equivalents.
                   4167:     \let-\realdash \let_\normalunderscore
                   4168:   }
                   4169: }
                   4170: 
                   4171: % We have this subroutine so that we can handle at least some @value's
                   4172: % properly in indexes (we call \makevalueexpandable in \indexdummies).
                   4173: % The command has to be fully expandable (if the variable is set), since
                   4174: % the result winds up in the index file.  This means that if the
                   4175: % variable's value contains other Texinfo commands, it's almost certain
                   4176: % it will fail (although perhaps we could fix that with sufficient work
                   4177: % to do a one-level expansion on the result, instead of complete).
                   4178: %
                   4179: \def\expandablevalue#1{%
                   4180:   \expandafter\ifx\csname SET#1\endcsname\relax
                   4181:     {[No value for ``#1'']}%
                   4182:     \message{Variable `#1', used in @value, is not set.}%
                   4183:   \else
                   4184:     \csname SET#1\endcsname
                   4185:   \fi
                   4186: }
                   4187: 
                   4188: % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
                   4189: % with @set.
                   4190: %
                   4191: % To get special treatment of `@end ifset,' call \makeond and the redefine.
                   4192: %
                   4193: \makecond{ifset}
                   4194: \def\ifset{\parsearg{\doifset{\let\next=\ifsetfail}}}
                   4195: \def\doifset#1#2{%
                   4196:   {%
                   4197:     \makevalueexpandable
                   4198:     \let\next=\empty
                   4199:     \expandafter\ifx\csname SET#2\endcsname\relax
                   4200:       #1% If not set, redefine \next.
                   4201:     \fi
                   4202:     \expandafter
                   4203:   }\next
                   4204: }
                   4205: \def\ifsetfail{\doignore{ifset}}
                   4206: 
                   4207: % @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
                   4208: % defined with @set, or has been undefined with @clear.
                   4209: %
                   4210: % The `\else' inside the `\doifset' parameter is a trick to reuse the
                   4211: % above code: if the variable is not set, do nothing, if it is set,
                   4212: % then redefine \next to \ifclearfail.
                   4213: %
                   4214: \makecond{ifclear}
                   4215: \def\ifclear{\parsearg{\doifset{\else \let\next=\ifclearfail}}}
                   4216: \def\ifclearfail{\doignore{ifclear}}
                   4217: 
                   4218: % @dircategory CATEGORY  -- specify a category of the dir file
                   4219: % which this file should belong to.  Ignore this in TeX.
                   4220: \let\dircategory=\comment
                   4221: 
                   4222: % @defininfoenclose.
                   4223: \let\definfoenclose=\comment
                   4224: 
                   4225: 
                   4226: \message{indexing,}
                   4227: % Index generation facilities
                   4228: 
                   4229: % Define \newwrite to be identical to plain tex's \newwrite
                   4230: % except not \outer, so it can be used within macros and \if's.
                   4231: \edef\newwrite{\makecsname{ptexnewwrite}}
                   4232: 
                   4233: % \newindex {foo} defines an index named foo.
                   4234: % It automatically defines \fooindex such that
                   4235: % \fooindex ...rest of line... puts an entry in the index foo.
                   4236: % It also defines \fooindfile to be the number of the output channel for
                   4237: % the file that accumulates this index.  The file's extension is foo.
                   4238: % The name of an index should be no more than 2 characters long
                   4239: % for the sake of vms.
                   4240: %
                   4241: \def\newindex#1{%
                   4242:   \iflinks
                   4243:     \expandafter\newwrite \csname#1indfile\endcsname
                   4244:     \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
                   4245:   \fi
                   4246:   \expandafter\xdef\csname#1index\endcsname{%     % Define @#1index
                   4247:     \noexpand\doindex{#1}}
                   4248: }
                   4249: 
                   4250: % @defindex foo  ==  \newindex{foo}
                   4251: %
                   4252: \def\defindex{\parsearg\newindex}
                   4253: 
                   4254: % Define @defcodeindex, like @defindex except put all entries in @code.
                   4255: %
                   4256: \def\defcodeindex{\parsearg\newcodeindex}
                   4257: %
                   4258: \def\newcodeindex#1{%
                   4259:   \iflinks
                   4260:     \expandafter\newwrite \csname#1indfile\endcsname
                   4261:     \openout \csname#1indfile\endcsname \jobname.#1
                   4262:   \fi
                   4263:   \expandafter\xdef\csname#1index\endcsname{%
                   4264:     \noexpand\docodeindex{#1}}%
                   4265: }
                   4266: 
                   4267: 
                   4268: % @synindex foo bar    makes index foo feed into index bar.
                   4269: % Do this instead of @defindex foo if you don't want it as a separate index.
                   4270: %
                   4271: % @syncodeindex foo bar   similar, but put all entries made for index foo
                   4272: % inside @code.
                   4273: %
                   4274: \def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}}
                   4275: \def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}}
                   4276: 
                   4277: % #1 is \doindex or \docodeindex, #2 the index getting redefined (foo),
                   4278: % #3 the target index (bar).
                   4279: \def\dosynindex#1#2#3{%
                   4280:   % Only do \closeout if we haven't already done it, else we'll end up
                   4281:   % closing the target index.
                   4282:   \expandafter \ifx\csname donesynindex#2\endcsname \relax
                   4283:     % The \closeout helps reduce unnecessary open files; the limit on the
                   4284:     % Acorn RISC OS is a mere 16 files.
                   4285:     \expandafter\closeout\csname#2indfile\endcsname
                   4286:     \expandafter\let\csname donesynindex#2\endcsname = 1
                   4287:   \fi
                   4288:   % redefine \fooindfile:
                   4289:   \expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname
                   4290:   \expandafter\let\csname#2indfile\endcsname=\temp
                   4291:   % redefine \fooindex:
                   4292:   \expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}%
                   4293: }
                   4294: 
                   4295: % Define \doindex, the driver for all \fooindex macros.
                   4296: % Argument #1 is generated by the calling \fooindex macro,
                   4297: %  and it is "foo", the name of the index.
                   4298: 
                   4299: % \doindex just uses \parsearg; it calls \doind for the actual work.
                   4300: % This is because \doind is more useful to call from other macros.
                   4301: 
                   4302: % There is also \dosubind {index}{topic}{subtopic}
                   4303: % which makes an entry in a two-level index such as the operation index.
                   4304: 
                   4305: \def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
                   4306: \def\singleindexer #1{\doind{\indexname}{#1}}
                   4307: 
                   4308: % like the previous two, but they put @code around the argument.
                   4309: \def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
                   4310: \def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
                   4311: 
                   4312: % Take care of Texinfo commands that can appear in an index entry.
                   4313: % Since there are some commands we want to expand, and others we don't,
                   4314: % we have to laboriously prevent expansion for those that we don't.
                   4315: %
                   4316: \def\indexdummies{%
                   4317:   \escapechar = `\\     % use backslash in output files.
                   4318:   \def\@{@}% change to @@ when we switch to @ as escape char in index files.
                   4319:   \def\ {\realbackslash\space }%
                   4320:   %
1.1.1.2   misho    4321:   % Need these unexpandable (because we define \tt as a dummy)
                   4322:   % definitions when @{ or @} appear in index entry text.  Also, more
                   4323:   % complicated, when \tex is in effect and \{ is a \delimiter again.
                   4324:   % We can't use \lbracecmd and \rbracecmd because texindex assumes
                   4325:   % braces and backslashes are used only as delimiters.  Perhaps we
                   4326:   % should define @lbrace and @rbrace commands a la @comma.
                   4327:   \def\{{{\tt\char123}}%
                   4328:   \def\}{{\tt\char125}}%
1.1       misho    4329:   %
                   4330:   % I don't entirely understand this, but when an index entry is
                   4331:   % generated from a macro call, the \endinput which \scanmacro inserts
                   4332:   % causes processing to be prematurely terminated.  This is,
                   4333:   % apparently, because \indexsorttmp is fully expanded, and \endinput
                   4334:   % is an expandable command.  The redefinition below makes \endinput
                   4335:   % disappear altogether for that purpose -- although logging shows that
                   4336:   % processing continues to some further point.  On the other hand, it
                   4337:   % seems \endinput does not hurt in the printed index arg, since that
                   4338:   % is still getting written without apparent harm.
                   4339:   %
                   4340:   % Sample source (mac-idx3.tex, reported by Graham Percival to
                   4341:   % help-texinfo, 22may06):
                   4342:   % @macro funindex {WORD}
                   4343:   % @findex xyz
                   4344:   % @end macro
                   4345:   % ...
                   4346:   % @funindex commtest
                   4347:   %
                   4348:   % The above is not enough to reproduce the bug, but it gives the flavor.
                   4349:   %
                   4350:   % Sample whatsit resulting:
                   4351:   % .@write3{\entry{xyz}{@folio }{@code {xyz@endinput }}}
                   4352:   %
                   4353:   % So:
                   4354:   \let\endinput = \empty
                   4355:   %
                   4356:   % Do the redefinitions.
                   4357:   \commondummies
                   4358: }
                   4359: 
                   4360: % For the aux and toc files, @ is the escape character.  So we want to
                   4361: % redefine everything using @ as the escape character (instead of
                   4362: % \realbackslash, still used for index files).  When everything uses @,
                   4363: % this will be simpler.
                   4364: %
                   4365: \def\atdummies{%
                   4366:   \def\@{@@}%
                   4367:   \def\ {@ }%
                   4368:   \let\{ = \lbraceatcmd
                   4369:   \let\} = \rbraceatcmd
                   4370:   %
                   4371:   % Do the redefinitions.
                   4372:   \commondummies
                   4373:   \otherbackslash
                   4374: }
                   4375: 
                   4376: % Called from \indexdummies and \atdummies.
                   4377: %
                   4378: \def\commondummies{%
                   4379:   %
                   4380:   % \definedummyword defines \#1 as \string\#1\space, thus effectively
1.1.1.2   misho    4381:   % preventing its expansion.  This is used only for control words,
1.1       misho    4382:   % not control letters, because the \space would be incorrect for
                   4383:   % control characters, but is needed to separate the control word
                   4384:   % from whatever follows.
                   4385:   %
                   4386:   % For control letters, we have \definedummyletter, which omits the
                   4387:   % space.
                   4388:   %
                   4389:   % These can be used both for control words that take an argument and
                   4390:   % those that do not.  If it is followed by {arg} in the input, then
                   4391:   % that will dutifully get written to the index (or wherever).
                   4392:   %
                   4393:   \def\definedummyword  ##1{\def##1{\string##1\space}}%
                   4394:   \def\definedummyletter##1{\def##1{\string##1}}%
                   4395:   \let\definedummyaccent\definedummyletter
                   4396:   %
                   4397:   \commondummiesnofonts
                   4398:   %
                   4399:   \definedummyletter\_%
1.1.1.2   misho    4400:   \definedummyletter\-%
1.1       misho    4401:   %
                   4402:   % Non-English letters.
                   4403:   \definedummyword\AA
                   4404:   \definedummyword\AE
                   4405:   \definedummyword\DH
                   4406:   \definedummyword\L
                   4407:   \definedummyword\O
                   4408:   \definedummyword\OE
                   4409:   \definedummyword\TH
                   4410:   \definedummyword\aa
                   4411:   \definedummyword\ae
                   4412:   \definedummyword\dh
                   4413:   \definedummyword\exclamdown
                   4414:   \definedummyword\l
                   4415:   \definedummyword\o
                   4416:   \definedummyword\oe
                   4417:   \definedummyword\ordf
                   4418:   \definedummyword\ordm
                   4419:   \definedummyword\questiondown
                   4420:   \definedummyword\ss
                   4421:   \definedummyword\th
                   4422:   %
                   4423:   % Although these internal commands shouldn't show up, sometimes they do.
                   4424:   \definedummyword\bf
                   4425:   \definedummyword\gtr
                   4426:   \definedummyword\hat
                   4427:   \definedummyword\less
                   4428:   \definedummyword\sf
                   4429:   \definedummyword\sl
                   4430:   \definedummyword\tclose
                   4431:   \definedummyword\tt
                   4432:   %
                   4433:   \definedummyword\LaTeX
                   4434:   \definedummyword\TeX
                   4435:   %
                   4436:   % Assorted special characters.
1.1.1.2   misho    4437:   \definedummyword\arrow
1.1       misho    4438:   \definedummyword\bullet
                   4439:   \definedummyword\comma
                   4440:   \definedummyword\copyright
                   4441:   \definedummyword\registeredsymbol
                   4442:   \definedummyword\dots
                   4443:   \definedummyword\enddots
1.1.1.2   misho    4444:   \definedummyword\entrybreak
1.1       misho    4445:   \definedummyword\equiv
                   4446:   \definedummyword\error
                   4447:   \definedummyword\euro
1.1.1.2   misho    4448:   \definedummyword\expansion
                   4449:   \definedummyword\geq
1.1       misho    4450:   \definedummyword\guillemetleft
                   4451:   \definedummyword\guillemetright
                   4452:   \definedummyword\guilsinglleft
                   4453:   \definedummyword\guilsinglright
1.1.1.2   misho    4454:   \definedummyword\leq
1.1       misho    4455:   \definedummyword\minus
                   4456:   \definedummyword\ogonek
                   4457:   \definedummyword\pounds
                   4458:   \definedummyword\point
                   4459:   \definedummyword\print
                   4460:   \definedummyword\quotedblbase
                   4461:   \definedummyword\quotedblleft
                   4462:   \definedummyword\quotedblright
                   4463:   \definedummyword\quoteleft
                   4464:   \definedummyword\quoteright
                   4465:   \definedummyword\quotesinglbase
                   4466:   \definedummyword\result
                   4467:   \definedummyword\textdegree
                   4468:   %
                   4469:   % We want to disable all macros so that they are not expanded by \write.
                   4470:   \macrolist
                   4471:   %
                   4472:   \normalturnoffactive
                   4473:   %
                   4474:   % Handle some cases of @value -- where it does not contain any
                   4475:   % (non-fully-expandable) commands.
                   4476:   \makevalueexpandable
                   4477: }
                   4478: 
                   4479: % \commondummiesnofonts: common to \commondummies and \indexnofonts.
                   4480: %
                   4481: \def\commondummiesnofonts{%
                   4482:   % Control letters and accents.
                   4483:   \definedummyletter\!%
                   4484:   \definedummyaccent\"%
                   4485:   \definedummyaccent\'%
                   4486:   \definedummyletter\*%
                   4487:   \definedummyaccent\,%
                   4488:   \definedummyletter\.%
                   4489:   \definedummyletter\/%
                   4490:   \definedummyletter\:%
                   4491:   \definedummyaccent\=%
                   4492:   \definedummyletter\?%
                   4493:   \definedummyaccent\^%
                   4494:   \definedummyaccent\`%
                   4495:   \definedummyaccent\~%
                   4496:   \definedummyword\u
                   4497:   \definedummyword\v
                   4498:   \definedummyword\H
                   4499:   \definedummyword\dotaccent
                   4500:   \definedummyword\ogonek
                   4501:   \definedummyword\ringaccent
                   4502:   \definedummyword\tieaccent
                   4503:   \definedummyword\ubaraccent
                   4504:   \definedummyword\udotaccent
                   4505:   \definedummyword\dotless
                   4506:   %
                   4507:   % Texinfo font commands.
                   4508:   \definedummyword\b
                   4509:   \definedummyword\i
                   4510:   \definedummyword\r
1.1.1.2   misho    4511:   \definedummyword\sansserif
1.1       misho    4512:   \definedummyword\sc
1.1.1.2   misho    4513:   \definedummyword\slanted
1.1       misho    4514:   \definedummyword\t
                   4515:   %
                   4516:   % Commands that take arguments.
                   4517:   \definedummyword\acronym
1.1.1.3 ! misho    4518:   \definedummyword\anchor
1.1       misho    4519:   \definedummyword\cite
                   4520:   \definedummyword\code
                   4521:   \definedummyword\command
                   4522:   \definedummyword\dfn
1.1.1.2   misho    4523:   \definedummyword\dmn
1.1       misho    4524:   \definedummyword\email
                   4525:   \definedummyword\emph
                   4526:   \definedummyword\env
                   4527:   \definedummyword\file
1.1.1.2   misho    4528:   \definedummyword\indicateurl
1.1       misho    4529:   \definedummyword\kbd
                   4530:   \definedummyword\key
                   4531:   \definedummyword\math
                   4532:   \definedummyword\option
                   4533:   \definedummyword\pxref
                   4534:   \definedummyword\ref
                   4535:   \definedummyword\samp
                   4536:   \definedummyword\strong
                   4537:   \definedummyword\tie
                   4538:   \definedummyword\uref
                   4539:   \definedummyword\url
                   4540:   \definedummyword\var
                   4541:   \definedummyword\verb
                   4542:   \definedummyword\w
                   4543:   \definedummyword\xref
                   4544: }
                   4545: 
                   4546: % \indexnofonts is used when outputting the strings to sort the index
                   4547: % by, and when constructing control sequence names.  It eliminates all
                   4548: % control sequences and just writes whatever the best ASCII sort string
                   4549: % would be for a given command (usually its argument).
                   4550: %
                   4551: \def\indexnofonts{%
                   4552:   % Accent commands should become @asis.
                   4553:   \def\definedummyaccent##1{\let##1\asis}%
                   4554:   % We can just ignore other control letters.
                   4555:   \def\definedummyletter##1{\let##1\empty}%
1.1.1.2   misho    4556:   % All control words become @asis by default; overrides below.
1.1       misho    4557:   \let\definedummyword\definedummyaccent
                   4558:   %
                   4559:   \commondummiesnofonts
                   4560:   %
                   4561:   % Don't no-op \tt, since it isn't a user-level command
                   4562:   % and is used in the definitions of the active chars like <, >, |, etc.
                   4563:   % Likewise with the other plain tex font commands.
                   4564:   %\let\tt=\asis
                   4565:   %
                   4566:   \def\ { }%
                   4567:   \def\@{@}%
                   4568:   \def\_{\normalunderscore}%
1.1.1.2   misho    4569:   \def\-{}% @- shouldn't affect sorting
                   4570:   %
                   4571:   % Unfortunately, texindex is not prepared to handle braces in the
                   4572:   % content at all.  So for index sorting, we map @{ and @} to strings
                   4573:   % starting with |, since that ASCII character is between ASCII { and }.
                   4574:   \def\{{|a}%
                   4575:   \def\}{|b}%
1.1       misho    4576:   %
                   4577:   % Non-English letters.
                   4578:   \def\AA{AA}%
                   4579:   \def\AE{AE}%
                   4580:   \def\DH{DZZ}%
                   4581:   \def\L{L}%
                   4582:   \def\OE{OE}%
                   4583:   \def\O{O}%
                   4584:   \def\TH{ZZZ}%
                   4585:   \def\aa{aa}%
                   4586:   \def\ae{ae}%
                   4587:   \def\dh{dzz}%
                   4588:   \def\exclamdown{!}%
                   4589:   \def\l{l}%
                   4590:   \def\oe{oe}%
                   4591:   \def\ordf{a}%
                   4592:   \def\ordm{o}%
                   4593:   \def\o{o}%
                   4594:   \def\questiondown{?}%
                   4595:   \def\ss{ss}%
                   4596:   \def\th{zzz}%
                   4597:   %
                   4598:   \def\LaTeX{LaTeX}%
                   4599:   \def\TeX{TeX}%
                   4600:   %
                   4601:   % Assorted special characters.
                   4602:   % (The following {} will end up in the sort string, but that's ok.)
1.1.1.2   misho    4603:   \def\arrow{->}%
1.1       misho    4604:   \def\bullet{bullet}%
                   4605:   \def\comma{,}%
                   4606:   \def\copyright{copyright}%
                   4607:   \def\dots{...}%
                   4608:   \def\enddots{...}%
                   4609:   \def\equiv{==}%
                   4610:   \def\error{error}%
                   4611:   \def\euro{euro}%
                   4612:   \def\expansion{==>}%
1.1.1.2   misho    4613:   \def\geq{>=}%
1.1       misho    4614:   \def\guillemetleft{<<}%
                   4615:   \def\guillemetright{>>}%
                   4616:   \def\guilsinglleft{<}%
                   4617:   \def\guilsinglright{>}%
1.1.1.2   misho    4618:   \def\leq{<=}%
1.1       misho    4619:   \def\minus{-}%
                   4620:   \def\point{.}%
                   4621:   \def\pounds{pounds}%
                   4622:   \def\print{-|}%
                   4623:   \def\quotedblbase{"}%
                   4624:   \def\quotedblleft{"}%
                   4625:   \def\quotedblright{"}%
                   4626:   \def\quoteleft{`}%
                   4627:   \def\quoteright{'}%
                   4628:   \def\quotesinglbase{,}%
                   4629:   \def\registeredsymbol{R}%
                   4630:   \def\result{=>}%
                   4631:   \def\textdegree{o}%
                   4632:   %
1.1.1.2   misho    4633:   \expandafter\ifx\csname SETtxiindexlquoteignore\endcsname\relax
                   4634:   \else \indexlquoteignore \fi
                   4635:   %
1.1       misho    4636:   % We need to get rid of all macros, leaving only the arguments (if present).
                   4637:   % Of course this is not nearly correct, but it is the best we can do for now.
                   4638:   % makeinfo does not expand macros in the argument to @deffn, which ends up
                   4639:   % writing an index entry, and texindex isn't prepared for an index sort entry
                   4640:   % that starts with \.
                   4641:   %
                   4642:   % Since macro invocations are followed by braces, we can just redefine them
                   4643:   % to take a single TeX argument.  The case of a macro invocation that
                   4644:   % goes to end-of-line is not handled.
                   4645:   %
                   4646:   \macrolist
                   4647: }
                   4648: 
1.1.1.2   misho    4649: % Undocumented (for FSFS 2nd ed.): @set txiindexlquoteignore makes us
                   4650: % ignore left quotes in the sort term.
                   4651: {\catcode`\`=\active
                   4652:  \gdef\indexlquoteignore{\let`=\empty}}
                   4653: 
1.1       misho    4654: \let\indexbackslash=0  %overridden during \printindex.
                   4655: \let\SETmarginindex=\relax % put index entries in margin (undocumented)?
                   4656: 
                   4657: % Most index entries go through here, but \dosubind is the general case.
                   4658: % #1 is the index name, #2 is the entry text.
                   4659: \def\doind#1#2{\dosubind{#1}{#2}{}}
                   4660: 
                   4661: % Workhorse for all \fooindexes.
                   4662: % #1 is name of index, #2 is stuff to put there, #3 is subentry --
                   4663: % empty if called from \doind, as we usually are (the main exception
                   4664: % is with most defuns, which call us directly).
                   4665: %
                   4666: \def\dosubind#1#2#3{%
                   4667:   \iflinks
                   4668:   {%
                   4669:     % Store the main index entry text (including the third arg).
                   4670:     \toks0 = {#2}%
                   4671:     % If third arg is present, precede it with a space.
                   4672:     \def\thirdarg{#3}%
                   4673:     \ifx\thirdarg\empty \else
                   4674:       \toks0 = \expandafter{\the\toks0 \space #3}%
                   4675:     \fi
                   4676:     %
                   4677:     \edef\writeto{\csname#1indfile\endcsname}%
                   4678:     %
                   4679:     \safewhatsit\dosubindwrite
                   4680:   }%
                   4681:   \fi
                   4682: }
                   4683: 
                   4684: % Write the entry in \toks0 to the index file:
                   4685: %
                   4686: \def\dosubindwrite{%
                   4687:   % Put the index entry in the margin if desired.
                   4688:   \ifx\SETmarginindex\relax\else
                   4689:     \insert\margin{\hbox{\vrule height8pt depth3pt width0pt \the\toks0}}%
                   4690:   \fi
                   4691:   %
                   4692:   % Remember, we are within a group.
                   4693:   \indexdummies % Must do this here, since \bf, etc expand at this stage
                   4694:   \def\backslashcurfont{\indexbackslash}% \indexbackslash isn't defined now
                   4695:       % so it will be output as is; and it will print as backslash.
                   4696:   %
                   4697:   % Process the index entry with all font commands turned off, to
                   4698:   % get the string to sort by.
                   4699:   {\indexnofonts
                   4700:    \edef\temp{\the\toks0}% need full expansion
                   4701:    \xdef\indexsorttmp{\temp}%
                   4702:   }%
                   4703:   %
                   4704:   % Set up the complete index entry, with both the sort key and
                   4705:   % the original text, including any font commands.  We write
                   4706:   % three arguments to \entry to the .?? file (four in the
                   4707:   % subentry case), texindex reduces to two when writing the .??s
                   4708:   % sorted result.
                   4709:   \edef\temp{%
                   4710:     \write\writeto{%
                   4711:       \string\entry{\indexsorttmp}{\noexpand\folio}{\the\toks0}}%
                   4712:   }%
                   4713:   \temp
                   4714: }
                   4715: 
                   4716: % Take care of unwanted page breaks/skips around a whatsit:
                   4717: %
                   4718: % If a skip is the last thing on the list now, preserve it
                   4719: % by backing up by \lastskip, doing the \write, then inserting
                   4720: % the skip again.  Otherwise, the whatsit generated by the
                   4721: % \write or \pdfdest will make \lastskip zero.  The result is that
                   4722: % sequences like this:
                   4723: % @end defun
                   4724: % @tindex whatever
                   4725: % @defun ...
                   4726: % will have extra space inserted, because the \medbreak in the
                   4727: % start of the @defun won't see the skip inserted by the @end of
                   4728: % the previous defun.
                   4729: %
                   4730: % But don't do any of this if we're not in vertical mode.  We
                   4731: % don't want to do a \vskip and prematurely end a paragraph.
                   4732: %
                   4733: % Avoid page breaks due to these extra skips, too.
                   4734: %
                   4735: % But wait, there is a catch there:
                   4736: % We'll have to check whether \lastskip is zero skip.  \ifdim is not
                   4737: % sufficient for this purpose, as it ignores stretch and shrink parts
                   4738: % of the skip.  The only way seems to be to check the textual
                   4739: % representation of the skip.
                   4740: %
                   4741: % The following is almost like \def\zeroskipmacro{0.0pt} except that
                   4742: % the ``p'' and ``t'' characters have catcode \other, not 11 (letter).
                   4743: %
                   4744: \edef\zeroskipmacro{\expandafter\the\csname z@skip\endcsname}
                   4745: %
                   4746: \newskip\whatsitskip
                   4747: \newcount\whatsitpenalty
                   4748: %
                   4749: % ..., ready, GO:
                   4750: %
1.1.1.3 ! misho    4751: \def\safewhatsit#1{\ifhmode
1.1       misho    4752:   #1%
1.1.1.3 ! misho    4753:  \else
1.1       misho    4754:   % \lastskip and \lastpenalty cannot both be nonzero simultaneously.
                   4755:   \whatsitskip = \lastskip
                   4756:   \edef\lastskipmacro{\the\lastskip}%
                   4757:   \whatsitpenalty = \lastpenalty
                   4758:   %
                   4759:   % If \lastskip is nonzero, that means the last item was a
                   4760:   % skip.  And since a skip is discardable, that means this
                   4761:   % -\whatsitskip glue we're inserting is preceded by a
                   4762:   % non-discardable item, therefore it is not a potential
                   4763:   % breakpoint, therefore no \nobreak needed.
                   4764:   \ifx\lastskipmacro\zeroskipmacro
                   4765:   \else
                   4766:     \vskip-\whatsitskip
                   4767:   \fi
                   4768:   %
                   4769:   #1%
                   4770:   %
                   4771:   \ifx\lastskipmacro\zeroskipmacro
                   4772:     % If \lastskip was zero, perhaps the last item was a penalty, and
                   4773:     % perhaps it was >=10000, e.g., a \nobreak.  In that case, we want
                   4774:     % to re-insert the same penalty (values >10000 are used for various
                   4775:     % signals); since we just inserted a non-discardable item, any
                   4776:     % following glue (such as a \parskip) would be a breakpoint.  For example:
                   4777:     %   @deffn deffn-whatever
                   4778:     %   @vindex index-whatever
                   4779:     %   Description.
                   4780:     % would allow a break between the index-whatever whatsit
                   4781:     % and the "Description." paragraph.
                   4782:     \ifnum\whatsitpenalty>9999 \penalty\whatsitpenalty \fi
                   4783:   \else
                   4784:     % On the other hand, if we had a nonzero \lastskip,
                   4785:     % this make-up glue would be preceded by a non-discardable item
                   4786:     % (the whatsit from the \write), so we must insert a \nobreak.
                   4787:     \nobreak\vskip\whatsitskip
                   4788:   \fi
1.1.1.3 ! misho    4789: \fi}
1.1       misho    4790: 
                   4791: % The index entry written in the file actually looks like
                   4792: %  \entry {sortstring}{page}{topic}
                   4793: % or
                   4794: %  \entry {sortstring}{page}{topic}{subtopic}
                   4795: % The texindex program reads in these files and writes files
                   4796: % containing these kinds of lines:
                   4797: %  \initial {c}
                   4798: %     before the first topic whose initial is c
                   4799: %  \entry {topic}{pagelist}
                   4800: %     for a topic that is used without subtopics
                   4801: %  \primary {topic}
                   4802: %     for the beginning of a topic that is used with subtopics
                   4803: %  \secondary {subtopic}{pagelist}
                   4804: %     for each subtopic.
                   4805: 
                   4806: % Define the user-accessible indexing commands
                   4807: % @findex, @vindex, @kindex, @cindex.
                   4808: 
                   4809: \def\findex {\fnindex}
                   4810: \def\kindex {\kyindex}
                   4811: \def\cindex {\cpindex}
                   4812: \def\vindex {\vrindex}
                   4813: \def\tindex {\tpindex}
                   4814: \def\pindex {\pgindex}
                   4815: 
                   4816: \def\cindexsub {\begingroup\obeylines\cindexsub}
                   4817: {\obeylines %
                   4818: \gdef\cindexsub "#1" #2^^M{\endgroup %
                   4819: \dosubind{cp}{#2}{#1}}}
                   4820: 
                   4821: % Define the macros used in formatting output of the sorted index material.
                   4822: 
                   4823: % @printindex causes a particular index (the ??s file) to get printed.
                   4824: % It does not print any chapter heading (usually an @unnumbered).
                   4825: %
                   4826: \parseargdef\printindex{\begingroup
                   4827:   \dobreak \chapheadingskip{10000}%
                   4828:   %
                   4829:   \smallfonts \rm
                   4830:   \tolerance = 9500
                   4831:   \plainfrenchspacing
                   4832:   \everypar = {}% don't want the \kern\-parindent from indentation suppression.
                   4833:   %
                   4834:   % See if the index file exists and is nonempty.
                   4835:   % Change catcode of @ here so that if the index file contains
                   4836:   % \initial {@}
                   4837:   % as its first line, TeX doesn't complain about mismatched braces
                   4838:   % (because it thinks @} is a control sequence).
                   4839:   \catcode`\@ = 11
                   4840:   \openin 1 \jobname.#1s
                   4841:   \ifeof 1
                   4842:     % \enddoublecolumns gets confused if there is no text in the index,
                   4843:     % and it loses the chapter title and the aux file entries for the
                   4844:     % index.  The easiest way to prevent this problem is to make sure
                   4845:     % there is some text.
                   4846:     \putwordIndexNonexistent
                   4847:   \else
                   4848:     %
                   4849:     % If the index file exists but is empty, then \openin leaves \ifeof
                   4850:     % false.  We have to make TeX try to read something from the file, so
                   4851:     % it can discover if there is anything in it.
                   4852:     \read 1 to \temp
                   4853:     \ifeof 1
                   4854:       \putwordIndexIsEmpty
                   4855:     \else
                   4856:       % Index files are almost Texinfo source, but we use \ as the escape
                   4857:       % character.  It would be better to use @, but that's too big a change
                   4858:       % to make right now.
                   4859:       \def\indexbackslash{\backslashcurfont}%
                   4860:       \catcode`\\ = 0
                   4861:       \escapechar = `\\
                   4862:       \begindoublecolumns
                   4863:       \input \jobname.#1s
                   4864:       \enddoublecolumns
                   4865:     \fi
                   4866:   \fi
                   4867:   \closein 1
                   4868: \endgroup}
                   4869: 
                   4870: % These macros are used by the sorted index file itself.
                   4871: % Change them to control the appearance of the index.
                   4872: 
                   4873: \def\initial#1{{%
                   4874:   % Some minor font changes for the special characters.
                   4875:   \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
                   4876:   %
                   4877:   % Remove any glue we may have, we'll be inserting our own.
                   4878:   \removelastskip
                   4879:   %
                   4880:   % We like breaks before the index initials, so insert a bonus.
                   4881:   \nobreak
                   4882:   \vskip 0pt plus 3\baselineskip
                   4883:   \penalty 0
                   4884:   \vskip 0pt plus -3\baselineskip
                   4885:   %
                   4886:   % Typeset the initial.  Making this add up to a whole number of
                   4887:   % baselineskips increases the chance of the dots lining up from column
                   4888:   % to column.  It still won't often be perfect, because of the stretch
                   4889:   % we need before each entry, but it's better.
                   4890:   %
                   4891:   % No shrink because it confuses \balancecolumns.
                   4892:   \vskip 1.67\baselineskip plus .5\baselineskip
                   4893:   \leftline{\secbf #1}%
                   4894:   % Do our best not to break after the initial.
                   4895:   \nobreak
                   4896:   \vskip .33\baselineskip plus .1\baselineskip
                   4897: }}
                   4898: 
                   4899: % \entry typesets a paragraph consisting of the text (#1), dot leaders, and
                   4900: % then page number (#2) flushed to the right margin.  It is used for index
                   4901: % and table of contents entries.  The paragraph is indented by \leftskip.
                   4902: %
                   4903: % A straightforward implementation would start like this:
                   4904: %      \def\entry#1#2{...
                   4905: % But this freezes the catcodes in the argument, and can cause problems to
                   4906: % @code, which sets - active.  This problem was fixed by a kludge---
                   4907: % ``-'' was active throughout whole index, but this isn't really right.
                   4908: % The right solution is to prevent \entry from swallowing the whole text.
                   4909: %                                 --kasal, 21nov03
                   4910: \def\entry{%
                   4911:   \begingroup
                   4912:     %
                   4913:     % Start a new paragraph if necessary, so our assignments below can't
                   4914:     % affect previous text.
                   4915:     \par
                   4916:     %
                   4917:     % Do not fill out the last line with white space.
                   4918:     \parfillskip = 0in
                   4919:     %
                   4920:     % No extra space above this paragraph.
                   4921:     \parskip = 0in
                   4922:     %
                   4923:     % Do not prefer a separate line ending with a hyphen to fewer lines.
                   4924:     \finalhyphendemerits = 0
                   4925:     %
                   4926:     % \hangindent is only relevant when the entry text and page number
                   4927:     % don't both fit on one line.  In that case, bob suggests starting the
                   4928:     % dots pretty far over on the line.  Unfortunately, a large
                   4929:     % indentation looks wrong when the entry text itself is broken across
                   4930:     % lines.  So we use a small indentation and put up with long leaders.
                   4931:     %
                   4932:     % \hangafter is reset to 1 (which is the value we want) at the start
                   4933:     % of each paragraph, so we need not do anything with that.
                   4934:     \hangindent = 2em
                   4935:     %
                   4936:     % When the entry text needs to be broken, just fill out the first line
                   4937:     % with blank space.
                   4938:     \rightskip = 0pt plus1fil
                   4939:     %
                   4940:     % A bit of stretch before each entry for the benefit of balancing
                   4941:     % columns.
                   4942:     \vskip 0pt plus1pt
                   4943:     %
1.1.1.2   misho    4944:     % When reading the text of entry, convert explicit line breaks
                   4945:     % from @* into spaces.  The user might give these in long section
                   4946:     % titles, for instance.
                   4947:     \def\*{\unskip\space\ignorespaces}%
                   4948:     \def\entrybreak{\hfil\break}%
                   4949:     %
1.1       misho    4950:     % Swallow the left brace of the text (first parameter):
                   4951:     \afterassignment\doentry
                   4952:     \let\temp =
                   4953: }
1.1.1.2   misho    4954: \def\entrybreak{\unskip\space\ignorespaces}%
1.1       misho    4955: \def\doentry{%
                   4956:     \bgroup % Instead of the swallowed brace.
                   4957:       \noindent
                   4958:       \aftergroup\finishentry
                   4959:       % And now comes the text of the entry.
                   4960: }
                   4961: \def\finishentry#1{%
                   4962:     % #1 is the page number.
                   4963:     %
                   4964:     % The following is kludged to not output a line of dots in the index if
                   4965:     % there are no page numbers.  The next person who breaks this will be
                   4966:     % cursed by a Unix daemon.
                   4967:     \setbox\boxA = \hbox{#1}%
                   4968:     \ifdim\wd\boxA = 0pt
                   4969:       \ %
                   4970:     \else
                   4971:       %
                   4972:       % If we must, put the page number on a line of its own, and fill out
                   4973:       % this line with blank space.  (The \hfil is overwhelmed with the
                   4974:       % fill leaders glue in \indexdotfill if the page number does fit.)
                   4975:       \hfil\penalty50
                   4976:       \null\nobreak\indexdotfill % Have leaders before the page number.
                   4977:       %
                   4978:       % The `\ ' here is removed by the implicit \unskip that TeX does as
                   4979:       % part of (the primitive) \par.  Without it, a spurious underfull
                   4980:       % \hbox ensues.
                   4981:       \ifpdf
                   4982:        \pdfgettoks#1.%
                   4983:        \ \the\toksA
                   4984:       \else
                   4985:        \ #1%
                   4986:       \fi
                   4987:     \fi
                   4988:     \par
                   4989:   \endgroup
                   4990: }
                   4991: 
                   4992: % Like plain.tex's \dotfill, except uses up at least 1 em.
                   4993: \def\indexdotfill{\cleaders
                   4994:   \hbox{$\mathsurround=0pt \mkern1.5mu.\mkern1.5mu$}\hskip 1em plus 1fill}
                   4995: 
                   4996: \def\primary #1{\line{#1\hfil}}
                   4997: 
                   4998: \newskip\secondaryindent \secondaryindent=0.5cm
                   4999: \def\secondary#1#2{{%
                   5000:   \parfillskip=0in
                   5001:   \parskip=0in
                   5002:   \hangindent=1in
                   5003:   \hangafter=1
                   5004:   \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill
                   5005:   \ifpdf
                   5006:     \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
                   5007:   \else
                   5008:     #2
                   5009:   \fi
                   5010:   \par
                   5011: }}
                   5012: 
                   5013: % Define two-column mode, which we use to typeset indexes.
                   5014: % Adapted from the TeXbook, page 416, which is to say,
                   5015: % the manmac.tex format used to print the TeXbook itself.
                   5016: \catcode`\@=11
                   5017: 
                   5018: \newbox\partialpage
                   5019: \newdimen\doublecolumnhsize
                   5020: 
                   5021: \def\begindoublecolumns{\begingroup % ended by \enddoublecolumns
                   5022:   % Grab any single-column material above us.
                   5023:   \output = {%
                   5024:     %
                   5025:     % Here is a possibility not foreseen in manmac: if we accumulate a
                   5026:     % whole lot of material, we might end up calling this \output
                   5027:     % routine twice in a row (see the doublecol-lose test, which is
                   5028:     % essentially a couple of indexes with @setchapternewpage off).  In
                   5029:     % that case we just ship out what is in \partialpage with the normal
                   5030:     % output routine.  Generally, \partialpage will be empty when this
                   5031:     % runs and this will be a no-op.  See the indexspread.tex test case.
                   5032:     \ifvoid\partialpage \else
                   5033:       \onepageout{\pagecontents\partialpage}%
                   5034:     \fi
                   5035:     %
                   5036:     \global\setbox\partialpage = \vbox{%
                   5037:       % Unvbox the main output page.
                   5038:       \unvbox\PAGE
                   5039:       \kern-\topskip \kern\baselineskip
                   5040:     }%
                   5041:   }%
                   5042:   \eject % run that output routine to set \partialpage
                   5043:   %
                   5044:   % Use the double-column output routine for subsequent pages.
                   5045:   \output = {\doublecolumnout}%
                   5046:   %
                   5047:   % Change the page size parameters.  We could do this once outside this
                   5048:   % routine, in each of @smallbook, @afourpaper, and the default 8.5x11
                   5049:   % format, but then we repeat the same computation.  Repeating a couple
                   5050:   % of assignments once per index is clearly meaningless for the
                   5051:   % execution time, so we may as well do it in one place.
                   5052:   %
                   5053:   % First we halve the line length, less a little for the gutter between
                   5054:   % the columns.  We compute the gutter based on the line length, so it
                   5055:   % changes automatically with the paper format.  The magic constant
                   5056:   % below is chosen so that the gutter has the same value (well, +-<1pt)
                   5057:   % as it did when we hard-coded it.
                   5058:   %
                   5059:   % We put the result in a separate register, \doublecolumhsize, so we
                   5060:   % can restore it in \pagesofar, after \hsize itself has (potentially)
                   5061:   % been clobbered.
                   5062:   %
                   5063:   \doublecolumnhsize = \hsize
                   5064:     \advance\doublecolumnhsize by -.04154\hsize
                   5065:     \divide\doublecolumnhsize by 2
                   5066:   \hsize = \doublecolumnhsize
                   5067:   %
                   5068:   % Double the \vsize as well.  (We don't need a separate register here,
                   5069:   % since nobody clobbers \vsize.)
                   5070:   \vsize = 2\vsize
                   5071: }
                   5072: 
                   5073: % The double-column output routine for all double-column pages except
                   5074: % the last.
                   5075: %
                   5076: \def\doublecolumnout{%
                   5077:   \splittopskip=\topskip \splitmaxdepth=\maxdepth
                   5078:   % Get the available space for the double columns -- the normal
                   5079:   % (undoubled) page height minus any material left over from the
                   5080:   % previous page.
                   5081:   \dimen@ = \vsize
                   5082:   \divide\dimen@ by 2
                   5083:   \advance\dimen@ by -\ht\partialpage
                   5084:   %
                   5085:   % box0 will be the left-hand column, box2 the right.
                   5086:   \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
                   5087:   \onepageout\pagesofar
                   5088:   \unvbox255
                   5089:   \penalty\outputpenalty
                   5090: }
                   5091: %
                   5092: % Re-output the contents of the output page -- any previous material,
                   5093: % followed by the two boxes we just split, in box0 and box2.
                   5094: \def\pagesofar{%
                   5095:   \unvbox\partialpage
                   5096:   %
                   5097:   \hsize = \doublecolumnhsize
                   5098:   \wd0=\hsize \wd2=\hsize
                   5099:   \hbox to\pagewidth{\box0\hfil\box2}%
                   5100: }
                   5101: %
                   5102: % All done with double columns.
                   5103: \def\enddoublecolumns{%
                   5104:   % The following penalty ensures that the page builder is exercised
                   5105:   % _before_ we change the output routine.  This is necessary in the
                   5106:   % following situation:
                   5107:   %
                   5108:   % The last section of the index consists only of a single entry.
                   5109:   % Before this section, \pagetotal is less than \pagegoal, so no
                   5110:   % break occurs before the last section starts.  However, the last
                   5111:   % section, consisting of \initial and the single \entry, does not
                   5112:   % fit on the page and has to be broken off.  Without the following
                   5113:   % penalty the page builder will not be exercised until \eject
                   5114:   % below, and by that time we'll already have changed the output
                   5115:   % routine to the \balancecolumns version, so the next-to-last
                   5116:   % double-column page will be processed with \balancecolumns, which
                   5117:   % is wrong:  The two columns will go to the main vertical list, with
                   5118:   % the broken-off section in the recent contributions.  As soon as
                   5119:   % the output routine finishes, TeX starts reconsidering the page
                   5120:   % break.  The two columns and the broken-off section both fit on the
                   5121:   % page, because the two columns now take up only half of the page
                   5122:   % goal.  When TeX sees \eject from below which follows the final
                   5123:   % section, it invokes the new output routine that we've set after
                   5124:   % \balancecolumns below; \onepageout will try to fit the two columns
                   5125:   % and the final section into the vbox of \pageheight (see
                   5126:   % \pagebody), causing an overfull box.
                   5127:   %
                   5128:   % Note that glue won't work here, because glue does not exercise the
                   5129:   % page builder, unlike penalties (see The TeXbook, pp. 280-281).
                   5130:   \penalty0
                   5131:   %
                   5132:   \output = {%
                   5133:     % Split the last of the double-column material.  Leave it on the
                   5134:     % current page, no automatic page break.
                   5135:     \balancecolumns
                   5136:     %
                   5137:     % If we end up splitting too much material for the current page,
                   5138:     % though, there will be another page break right after this \output
                   5139:     % invocation ends.  Having called \balancecolumns once, we do not
                   5140:     % want to call it again.  Therefore, reset \output to its normal
                   5141:     % definition right away.  (We hope \balancecolumns will never be
                   5142:     % called on to balance too much material, but if it is, this makes
                   5143:     % the output somewhat more palatable.)
                   5144:     \global\output = {\onepageout{\pagecontents\PAGE}}%
                   5145:   }%
                   5146:   \eject
                   5147:   \endgroup % started in \begindoublecolumns
                   5148:   %
                   5149:   % \pagegoal was set to the doubled \vsize above, since we restarted
                   5150:   % the current page.  We're now back to normal single-column
                   5151:   % typesetting, so reset \pagegoal to the normal \vsize (after the
                   5152:   % \endgroup where \vsize got restored).
                   5153:   \pagegoal = \vsize
                   5154: }
                   5155: %
                   5156: % Called at the end of the double column material.
                   5157: \def\balancecolumns{%
                   5158:   \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120.
                   5159:   \dimen@ = \ht0
                   5160:   \advance\dimen@ by \topskip
                   5161:   \advance\dimen@ by-\baselineskip
                   5162:   \divide\dimen@ by 2 % target to split to
                   5163:   %debug\message{final 2-column material height=\the\ht0, target=\the\dimen@.}%
                   5164:   \splittopskip = \topskip
                   5165:   % Loop until we get a decent breakpoint.
                   5166:   {%
                   5167:     \vbadness = 10000
                   5168:     \loop
                   5169:       \global\setbox3 = \copy0
                   5170:       \global\setbox1 = \vsplit3 to \dimen@
                   5171:     \ifdim\ht3>\dimen@
                   5172:       \global\advance\dimen@ by 1pt
                   5173:     \repeat
                   5174:   }%
                   5175:   %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}%
                   5176:   \setbox0=\vbox to\dimen@{\unvbox1}%
                   5177:   \setbox2=\vbox to\dimen@{\unvbox3}%
                   5178:   %
                   5179:   \pagesofar
                   5180: }
                   5181: \catcode`\@ = \other
                   5182: 
                   5183: 
                   5184: \message{sectioning,}
                   5185: % Chapters, sections, etc.
                   5186: 
1.1.1.2   misho    5187: % Let's start with @part.
                   5188: \outer\parseargdef\part{\partzzz{#1}}
                   5189: \def\partzzz#1{%
                   5190:   \chapoddpage
                   5191:   \null
                   5192:   \vskip.3\vsize  % move it down on the page a bit
                   5193:   \begingroup
                   5194:     \noindent \titlefonts\rmisbold #1\par % the text
                   5195:     \let\lastnode=\empty      % no node to associate with
                   5196:     \writetocentry{part}{#1}{}% but put it in the toc
                   5197:     \headingsoff              % no headline or footline on the part page
                   5198:     \chapoddpage
                   5199:   \endgroup
                   5200: }
                   5201: 
                   5202: % \unnumberedno is an oxymoron.  But we count the unnumbered
1.1       misho    5203: % sections so that we can refer to them unambiguously in the pdf
                   5204: % outlines by their "section number".  We avoid collisions with chapter
                   5205: % numbers by starting them at 10000.  (If a document ever has 10000
                   5206: % chapters, we're in trouble anyway, I'm sure.)
                   5207: \newcount\unnumberedno \unnumberedno = 10000
                   5208: \newcount\chapno
                   5209: \newcount\secno        \secno=0
                   5210: \newcount\subsecno     \subsecno=0
                   5211: \newcount\subsubsecno  \subsubsecno=0
                   5212: 
                   5213: % This counter is funny since it counts through charcodes of letters A, B, ...
                   5214: \newcount\appendixno  \appendixno = `\@
                   5215: %
                   5216: % \def\appendixletter{\char\the\appendixno}
                   5217: % We do the following ugly conditional instead of the above simple
                   5218: % construct for the sake of pdftex, which needs the actual
                   5219: % letter in the expansion, not just typeset.
                   5220: %
                   5221: \def\appendixletter{%
                   5222:   \ifnum\appendixno=`A A%
                   5223:   \else\ifnum\appendixno=`B B%
                   5224:   \else\ifnum\appendixno=`C C%
                   5225:   \else\ifnum\appendixno=`D D%
                   5226:   \else\ifnum\appendixno=`E E%
                   5227:   \else\ifnum\appendixno=`F F%
                   5228:   \else\ifnum\appendixno=`G G%
                   5229:   \else\ifnum\appendixno=`H H%
                   5230:   \else\ifnum\appendixno=`I I%
                   5231:   \else\ifnum\appendixno=`J J%
                   5232:   \else\ifnum\appendixno=`K K%
                   5233:   \else\ifnum\appendixno=`L L%
                   5234:   \else\ifnum\appendixno=`M M%
                   5235:   \else\ifnum\appendixno=`N N%
                   5236:   \else\ifnum\appendixno=`O O%
                   5237:   \else\ifnum\appendixno=`P P%
                   5238:   \else\ifnum\appendixno=`Q Q%
                   5239:   \else\ifnum\appendixno=`R R%
                   5240:   \else\ifnum\appendixno=`S S%
                   5241:   \else\ifnum\appendixno=`T T%
                   5242:   \else\ifnum\appendixno=`U U%
                   5243:   \else\ifnum\appendixno=`V V%
                   5244:   \else\ifnum\appendixno=`W W%
                   5245:   \else\ifnum\appendixno=`X X%
                   5246:   \else\ifnum\appendixno=`Y Y%
                   5247:   \else\ifnum\appendixno=`Z Z%
                   5248:   % The \the is necessary, despite appearances, because \appendixletter is
                   5249:   % expanded while writing the .toc file.  \char\appendixno is not
                   5250:   % expandable, thus it is written literally, thus all appendixes come out
                   5251:   % with the same letter (or @) in the toc without it.
                   5252:   \else\char\the\appendixno
                   5253:   \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
                   5254:   \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
                   5255: 
                   5256: % Each @chapter defines these (using marks) as the number+name, number
                   5257: % and name of the chapter.  Page headings and footings can use
                   5258: % these.  @section does likewise.
                   5259: \def\thischapter{}
                   5260: \def\thischapternum{}
                   5261: \def\thischaptername{}
                   5262: \def\thissection{}
                   5263: \def\thissectionnum{}
                   5264: \def\thissectionname{}
                   5265: 
                   5266: \newcount\absseclevel % used to calculate proper heading level
                   5267: \newcount\secbase\secbase=0 % @raisesections/@lowersections modify this count
                   5268: 
                   5269: % @raisesections: treat @section as chapter, @subsection as section, etc.
                   5270: \def\raisesections{\global\advance\secbase by -1}
                   5271: \let\up=\raisesections % original BFox name
                   5272: 
                   5273: % @lowersections: treat @chapter as section, @section as subsection, etc.
                   5274: \def\lowersections{\global\advance\secbase by 1}
                   5275: \let\down=\lowersections % original BFox name
                   5276: 
                   5277: % we only have subsub.
                   5278: \chardef\maxseclevel = 3
                   5279: %
                   5280: % A numbered section within an unnumbered changes to unnumbered too.
1.1.1.2   misho    5281: % To achieve this, remember the "biggest" unnum. sec. we are currently in:
                   5282: \chardef\unnlevel = \maxseclevel
1.1       misho    5283: %
                   5284: % Trace whether the current chapter is an appendix or not:
                   5285: % \chapheadtype is "N" or "A", unnumbered chapters are ignored.
                   5286: \def\chapheadtype{N}
                   5287: 
                   5288: % Choose a heading macro
                   5289: % #1 is heading type
                   5290: % #2 is heading level
                   5291: % #3 is text for heading
                   5292: \def\genhead#1#2#3{%
                   5293:   % Compute the abs. sec. level:
                   5294:   \absseclevel=#2
                   5295:   \advance\absseclevel by \secbase
                   5296:   % Make sure \absseclevel doesn't fall outside the range:
                   5297:   \ifnum \absseclevel < 0
                   5298:     \absseclevel = 0
                   5299:   \else
                   5300:     \ifnum \absseclevel > 3
                   5301:       \absseclevel = 3
                   5302:     \fi
                   5303:   \fi
                   5304:   % The heading type:
                   5305:   \def\headtype{#1}%
                   5306:   \if \headtype U%
1.1.1.2   misho    5307:     \ifnum \absseclevel < \unnlevel
                   5308:       \chardef\unnlevel = \absseclevel
1.1       misho    5309:     \fi
                   5310:   \else
                   5311:     % Check for appendix sections:
                   5312:     \ifnum \absseclevel = 0
                   5313:       \edef\chapheadtype{\headtype}%
                   5314:     \else
                   5315:       \if \headtype A\if \chapheadtype N%
                   5316:        \errmessage{@appendix... within a non-appendix chapter}%
                   5317:       \fi\fi
                   5318:     \fi
                   5319:     % Check for numbered within unnumbered:
1.1.1.2   misho    5320:     \ifnum \absseclevel > \unnlevel
1.1       misho    5321:       \def\headtype{U}%
                   5322:     \else
1.1.1.2   misho    5323:       \chardef\unnlevel = 3
1.1       misho    5324:     \fi
                   5325:   \fi
                   5326:   % Now print the heading:
                   5327:   \if \headtype U%
                   5328:     \ifcase\absseclevel
                   5329:        \unnumberedzzz{#3}%
                   5330:     \or \unnumberedseczzz{#3}%
                   5331:     \or \unnumberedsubseczzz{#3}%
                   5332:     \or \unnumberedsubsubseczzz{#3}%
                   5333:     \fi
                   5334:   \else
                   5335:     \if \headtype A%
                   5336:       \ifcase\absseclevel
                   5337:          \appendixzzz{#3}%
                   5338:       \or \appendixsectionzzz{#3}%
                   5339:       \or \appendixsubseczzz{#3}%
                   5340:       \or \appendixsubsubseczzz{#3}%
                   5341:       \fi
                   5342:     \else
                   5343:       \ifcase\absseclevel
                   5344:          \chapterzzz{#3}%
                   5345:       \or \seczzz{#3}%
                   5346:       \or \numberedsubseczzz{#3}%
                   5347:       \or \numberedsubsubseczzz{#3}%
                   5348:       \fi
                   5349:     \fi
                   5350:   \fi
                   5351:   \suppressfirstparagraphindent
                   5352: }
                   5353: 
                   5354: % an interface:
                   5355: \def\numhead{\genhead N}
                   5356: \def\apphead{\genhead A}
                   5357: \def\unnmhead{\genhead U}
                   5358: 
                   5359: % @chapter, @appendix, @unnumbered.  Increment top-level counter, reset
                   5360: % all lower-level sectioning counters to zero.
                   5361: %
                   5362: % Also set \chaplevelprefix, which we prepend to @float sequence numbers
                   5363: % (e.g., figures), q.v.  By default (before any chapter), that is empty.
                   5364: \let\chaplevelprefix = \empty
                   5365: %
                   5366: \outer\parseargdef\chapter{\numhead0{#1}} % normally numhead0 calls chapterzzz
                   5367: \def\chapterzzz#1{%
                   5368:   % section resetting is \global in case the chapter is in a group, such
                   5369:   % as an @include file.
                   5370:   \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
                   5371:     \global\advance\chapno by 1
                   5372:   %
                   5373:   % Used for \float.
                   5374:   \gdef\chaplevelprefix{\the\chapno.}%
                   5375:   \resetallfloatnos
                   5376:   %
                   5377:   % \putwordChapter can contain complex things in translations.
                   5378:   \toks0=\expandafter{\putwordChapter}%
                   5379:   \message{\the\toks0 \space \the\chapno}%
                   5380:   %
                   5381:   % Write the actual heading.
                   5382:   \chapmacro{#1}{Ynumbered}{\the\chapno}%
                   5383:   %
                   5384:   % So @section and the like are numbered underneath this chapter.
                   5385:   \global\let\section = \numberedsec
                   5386:   \global\let\subsection = \numberedsubsec
                   5387:   \global\let\subsubsection = \numberedsubsubsec
                   5388: }
                   5389: 
                   5390: \outer\parseargdef\appendix{\apphead0{#1}} % normally calls appendixzzz
                   5391: %
                   5392: \def\appendixzzz#1{%
                   5393:   \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
                   5394:     \global\advance\appendixno by 1
                   5395:   \gdef\chaplevelprefix{\appendixletter.}%
                   5396:   \resetallfloatnos
                   5397:   %
                   5398:   % \putwordAppendix can contain complex things in translations.
                   5399:   \toks0=\expandafter{\putwordAppendix}%
                   5400:   \message{\the\toks0 \space \appendixletter}%
                   5401:   %
                   5402:   \chapmacro{#1}{Yappendix}{\appendixletter}%
                   5403:   %
                   5404:   \global\let\section = \appendixsec
                   5405:   \global\let\subsection = \appendixsubsec
                   5406:   \global\let\subsubsection = \appendixsubsubsec
                   5407: }
                   5408: 
1.1.1.2   misho    5409: % normally unnmhead0 calls unnumberedzzz:
                   5410: \outer\parseargdef\unnumbered{\unnmhead0{#1}}
1.1       misho    5411: \def\unnumberedzzz#1{%
                   5412:   \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
                   5413:     \global\advance\unnumberedno by 1
                   5414:   %
                   5415:   % Since an unnumbered has no number, no prefix for figures.
                   5416:   \global\let\chaplevelprefix = \empty
                   5417:   \resetallfloatnos
                   5418:   %
                   5419:   % This used to be simply \message{#1}, but TeX fully expands the
                   5420:   % argument to \message.  Therefore, if #1 contained @-commands, TeX
                   5421:   % expanded them.  For example, in `@unnumbered The @cite{Book}', TeX
                   5422:   % expanded @cite (which turns out to cause errors because \cite is meant
                   5423:   % to be executed, not expanded).
                   5424:   %
                   5425:   % Anyway, we don't want the fully-expanded definition of @cite to appear
                   5426:   % as a result of the \message, we just want `@cite' itself.  We use
                   5427:   % \the<toks register> to achieve this: TeX expands \the<toks> only once,
                   5428:   % simply yielding the contents of <toks register>.  (We also do this for
                   5429:   % the toc entries.)
                   5430:   \toks0 = {#1}%
                   5431:   \message{(\the\toks0)}%
                   5432:   %
                   5433:   \chapmacro{#1}{Ynothing}{\the\unnumberedno}%
                   5434:   %
                   5435:   \global\let\section = \unnumberedsec
                   5436:   \global\let\subsection = \unnumberedsubsec
                   5437:   \global\let\subsubsection = \unnumberedsubsubsec
                   5438: }
                   5439: 
                   5440: % @centerchap is like @unnumbered, but the heading is centered.
                   5441: \outer\parseargdef\centerchap{%
                   5442:   % Well, we could do the following in a group, but that would break
                   5443:   % an assumption that \chapmacro is called at the outermost level.
                   5444:   % Thus we are safer this way:                --kasal, 24feb04
                   5445:   \let\centerparametersmaybe = \centerparameters
                   5446:   \unnmhead0{#1}%
                   5447:   \let\centerparametersmaybe = \relax
                   5448: }
                   5449: 
                   5450: % @top is like @unnumbered.
                   5451: \let\top\unnumbered
                   5452: 
                   5453: % Sections.
1.1.1.2   misho    5454: % 
1.1       misho    5455: \outer\parseargdef\numberedsec{\numhead1{#1}} % normally calls seczzz
                   5456: \def\seczzz#1{%
                   5457:   \global\subsecno=0 \global\subsubsecno=0  \global\advance\secno by 1
                   5458:   \sectionheading{#1}{sec}{Ynumbered}{\the\chapno.\the\secno}%
                   5459: }
                   5460: 
1.1.1.2   misho    5461: % normally calls appendixsectionzzz:
                   5462: \outer\parseargdef\appendixsection{\apphead1{#1}}
1.1       misho    5463: \def\appendixsectionzzz#1{%
                   5464:   \global\subsecno=0 \global\subsubsecno=0  \global\advance\secno by 1
                   5465:   \sectionheading{#1}{sec}{Yappendix}{\appendixletter.\the\secno}%
                   5466: }
                   5467: \let\appendixsec\appendixsection
                   5468: 
1.1.1.2   misho    5469: % normally calls unnumberedseczzz:
                   5470: \outer\parseargdef\unnumberedsec{\unnmhead1{#1}}
1.1       misho    5471: \def\unnumberedseczzz#1{%
                   5472:   \global\subsecno=0 \global\subsubsecno=0  \global\advance\secno by 1
                   5473:   \sectionheading{#1}{sec}{Ynothing}{\the\unnumberedno.\the\secno}%
                   5474: }
                   5475: 
                   5476: % Subsections.
1.1.1.2   misho    5477: % 
                   5478: % normally calls numberedsubseczzz:
                   5479: \outer\parseargdef\numberedsubsec{\numhead2{#1}}
1.1       misho    5480: \def\numberedsubseczzz#1{%
                   5481:   \global\subsubsecno=0  \global\advance\subsecno by 1
                   5482:   \sectionheading{#1}{subsec}{Ynumbered}{\the\chapno.\the\secno.\the\subsecno}%
                   5483: }
                   5484: 
1.1.1.2   misho    5485: % normally calls appendixsubseczzz:
                   5486: \outer\parseargdef\appendixsubsec{\apphead2{#1}}
1.1       misho    5487: \def\appendixsubseczzz#1{%
                   5488:   \global\subsubsecno=0  \global\advance\subsecno by 1
                   5489:   \sectionheading{#1}{subsec}{Yappendix}%
                   5490:                  {\appendixletter.\the\secno.\the\subsecno}%
                   5491: }
                   5492: 
1.1.1.2   misho    5493: % normally calls unnumberedsubseczzz:
                   5494: \outer\parseargdef\unnumberedsubsec{\unnmhead2{#1}}
1.1       misho    5495: \def\unnumberedsubseczzz#1{%
                   5496:   \global\subsubsecno=0  \global\advance\subsecno by 1
                   5497:   \sectionheading{#1}{subsec}{Ynothing}%
                   5498:                  {\the\unnumberedno.\the\secno.\the\subsecno}%
                   5499: }
                   5500: 
                   5501: % Subsubsections.
1.1.1.2   misho    5502: % 
                   5503: % normally numberedsubsubseczzz:
                   5504: \outer\parseargdef\numberedsubsubsec{\numhead3{#1}}
1.1       misho    5505: \def\numberedsubsubseczzz#1{%
                   5506:   \global\advance\subsubsecno by 1
                   5507:   \sectionheading{#1}{subsubsec}{Ynumbered}%
                   5508:                  {\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno}%
                   5509: }
                   5510: 
1.1.1.2   misho    5511: % normally appendixsubsubseczzz:
                   5512: \outer\parseargdef\appendixsubsubsec{\apphead3{#1}}
1.1       misho    5513: \def\appendixsubsubseczzz#1{%
                   5514:   \global\advance\subsubsecno by 1
                   5515:   \sectionheading{#1}{subsubsec}{Yappendix}%
                   5516:                  {\appendixletter.\the\secno.\the\subsecno.\the\subsubsecno}%
                   5517: }
                   5518: 
1.1.1.2   misho    5519: % normally unnumberedsubsubseczzz:
                   5520: \outer\parseargdef\unnumberedsubsubsec{\unnmhead3{#1}}
1.1       misho    5521: \def\unnumberedsubsubseczzz#1{%
                   5522:   \global\advance\subsubsecno by 1
                   5523:   \sectionheading{#1}{subsubsec}{Ynothing}%
                   5524:                  {\the\unnumberedno.\the\secno.\the\subsecno.\the\subsubsecno}%
                   5525: }
                   5526: 
                   5527: % These macros control what the section commands do, according
                   5528: % to what kind of chapter we are in (ordinary, appendix, or unnumbered).
                   5529: % Define them by default for a numbered chapter.
                   5530: \let\section = \numberedsec
                   5531: \let\subsection = \numberedsubsec
                   5532: \let\subsubsection = \numberedsubsubsec
                   5533: 
                   5534: % Define @majorheading, @heading and @subheading
                   5535: 
                   5536: % NOTE on use of \vbox for chapter headings, section headings, and such:
                   5537: %       1) We use \vbox rather than the earlier \line to permit
                   5538: %          overlong headings to fold.
                   5539: %       2) \hyphenpenalty is set to 10000 because hyphenation in a
                   5540: %          heading is obnoxious; this forbids it.
                   5541: %       3) Likewise, headings look best if no \parindent is used, and
                   5542: %          if justification is not attempted.  Hence \raggedright.
                   5543: 
                   5544: \def\majorheading{%
                   5545:   {\advance\chapheadingskip by 10pt \chapbreak }%
                   5546:   \parsearg\chapheadingzzz
                   5547: }
                   5548: 
                   5549: \def\chapheading{\chapbreak \parsearg\chapheadingzzz}
                   5550: \def\chapheadingzzz#1{%
                   5551:   {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
                   5552:                     \parindent=0pt\ptexraggedright
                   5553:                     \rmisbold #1\hfill}}%
                   5554:   \bigskip \par\penalty 200\relax
                   5555:   \suppressfirstparagraphindent
                   5556: }
                   5557: 
                   5558: % @heading, @subheading, @subsubheading.
                   5559: \parseargdef\heading{\sectionheading{#1}{sec}{Yomitfromtoc}{}
                   5560:   \suppressfirstparagraphindent}
                   5561: \parseargdef\subheading{\sectionheading{#1}{subsec}{Yomitfromtoc}{}
                   5562:   \suppressfirstparagraphindent}
                   5563: \parseargdef\subsubheading{\sectionheading{#1}{subsubsec}{Yomitfromtoc}{}
                   5564:   \suppressfirstparagraphindent}
                   5565: 
                   5566: % These macros generate a chapter, section, etc. heading only
                   5567: % (including whitespace, linebreaking, etc. around it),
                   5568: % given all the information in convenient, parsed form.
                   5569: 
1.1.1.2   misho    5570: % Args are the skip and penalty (usually negative)
1.1       misho    5571: \def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
                   5572: 
                   5573: % Parameter controlling skip before chapter headings (if needed)
                   5574: \newskip\chapheadingskip
                   5575: 
1.1.1.2   misho    5576: % Define plain chapter starts, and page on/off switching for it.
1.1       misho    5577: \def\chapbreak{\dobreak \chapheadingskip {-4000}}
                   5578: \def\chappager{\par\vfill\supereject}
                   5579: % Because \domark is called before \chapoddpage, the filler page will
                   5580: % get the headings for the next chapter, which is wrong.  But we don't
                   5581: % care -- we just disable all headings on the filler page.
                   5582: \def\chapoddpage{%
                   5583:   \chappager
                   5584:   \ifodd\pageno \else
                   5585:     \begingroup
1.1.1.2   misho    5586:       \headingsoff
                   5587:       \null
1.1       misho    5588:       \chappager
                   5589:     \endgroup
                   5590:   \fi
                   5591: }
                   5592: 
                   5593: \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
                   5594: 
                   5595: \def\CHAPPAGoff{%
                   5596: \global\let\contentsalignmacro = \chappager
                   5597: \global\let\pchapsepmacro=\chapbreak
                   5598: \global\let\pagealignmacro=\chappager}
                   5599: 
                   5600: \def\CHAPPAGon{%
                   5601: \global\let\contentsalignmacro = \chappager
                   5602: \global\let\pchapsepmacro=\chappager
                   5603: \global\let\pagealignmacro=\chappager
                   5604: \global\def\HEADINGSon{\HEADINGSsingle}}
                   5605: 
                   5606: \def\CHAPPAGodd{%
                   5607: \global\let\contentsalignmacro = \chapoddpage
                   5608: \global\let\pchapsepmacro=\chapoddpage
                   5609: \global\let\pagealignmacro=\chapoddpage
                   5610: \global\def\HEADINGSon{\HEADINGSdouble}}
                   5611: 
                   5612: \CHAPPAGon
                   5613: 
                   5614: % Chapter opening.
                   5615: %
                   5616: % #1 is the text, #2 is the section type (Ynumbered, Ynothing,
                   5617: % Yappendix, Yomitfromtoc), #3 the chapter number.
                   5618: %
                   5619: % To test against our argument.
                   5620: \def\Ynothingkeyword{Ynothing}
                   5621: \def\Yomitfromtockeyword{Yomitfromtoc}
                   5622: \def\Yappendixkeyword{Yappendix}
                   5623: %
                   5624: \def\chapmacro#1#2#3{%
                   5625:   % Insert the first mark before the heading break (see notes for \domark).
                   5626:   \let\prevchapterdefs=\lastchapterdefs
                   5627:   \let\prevsectiondefs=\lastsectiondefs
                   5628:   \gdef\lastsectiondefs{\gdef\thissectionname{}\gdef\thissectionnum{}%
                   5629:                         \gdef\thissection{}}%
                   5630:   %
                   5631:   \def\temptype{#2}%
                   5632:   \ifx\temptype\Ynothingkeyword
                   5633:     \gdef\lastchapterdefs{\gdef\thischaptername{#1}\gdef\thischapternum{}%
                   5634:                           \gdef\thischapter{\thischaptername}}%
                   5635:   \else\ifx\temptype\Yomitfromtockeyword
                   5636:     \gdef\lastchapterdefs{\gdef\thischaptername{#1}\gdef\thischapternum{}%
                   5637:                           \gdef\thischapter{}}%
                   5638:   \else\ifx\temptype\Yappendixkeyword
                   5639:     \toks0={#1}%
                   5640:     \xdef\lastchapterdefs{%
                   5641:       \gdef\noexpand\thischaptername{\the\toks0}%
                   5642:       \gdef\noexpand\thischapternum{\appendixletter}%
                   5643:       % \noexpand\putwordAppendix avoids expanding indigestible
                   5644:       % commands in some of the translations.
                   5645:       \gdef\noexpand\thischapter{\noexpand\putwordAppendix{}
                   5646:                                  \noexpand\thischapternum:
                   5647:                                  \noexpand\thischaptername}%
                   5648:     }%
                   5649:   \else
                   5650:     \toks0={#1}%
                   5651:     \xdef\lastchapterdefs{%
                   5652:       \gdef\noexpand\thischaptername{\the\toks0}%
                   5653:       \gdef\noexpand\thischapternum{\the\chapno}%
                   5654:       % \noexpand\putwordChapter avoids expanding indigestible
                   5655:       % commands in some of the translations.
                   5656:       \gdef\noexpand\thischapter{\noexpand\putwordChapter{}
                   5657:                                  \noexpand\thischapternum:
                   5658:                                  \noexpand\thischaptername}%
                   5659:     }%
                   5660:   \fi\fi\fi
                   5661:   %
                   5662:   % Output the mark.  Pass it through \safewhatsit, to take care of
                   5663:   % the preceding space.
                   5664:   \safewhatsit\domark
                   5665:   %
                   5666:   % Insert the chapter heading break.
                   5667:   \pchapsepmacro
                   5668:   %
                   5669:   % Now the second mark, after the heading break.  No break points
                   5670:   % between here and the heading.
                   5671:   \let\prevchapterdefs=\lastchapterdefs
                   5672:   \let\prevsectiondefs=\lastsectiondefs
                   5673:   \domark
                   5674:   %
                   5675:   {%
                   5676:     \chapfonts \rmisbold
                   5677:     %
                   5678:     % Have to define \lastsection before calling \donoderef, because the
                   5679:     % xref code eventually uses it.  On the other hand, it has to be called
                   5680:     % after \pchapsepmacro, or the headline will change too soon.
                   5681:     \gdef\lastsection{#1}%
                   5682:     %
                   5683:     % Only insert the separating space if we have a chapter/appendix
                   5684:     % number, and don't print the unnumbered ``number''.
                   5685:     \ifx\temptype\Ynothingkeyword
                   5686:       \setbox0 = \hbox{}%
                   5687:       \def\toctype{unnchap}%
                   5688:     \else\ifx\temptype\Yomitfromtockeyword
                   5689:       \setbox0 = \hbox{}% contents like unnumbered, but no toc entry
                   5690:       \def\toctype{omit}%
                   5691:     \else\ifx\temptype\Yappendixkeyword
                   5692:       \setbox0 = \hbox{\putwordAppendix{} #3\enspace}%
                   5693:       \def\toctype{app}%
                   5694:     \else
                   5695:       \setbox0 = \hbox{#3\enspace}%
                   5696:       \def\toctype{numchap}%
                   5697:     \fi\fi\fi
                   5698:     %
                   5699:     % Write the toc entry for this chapter.  Must come before the
                   5700:     % \donoderef, because we include the current node name in the toc
                   5701:     % entry, and \donoderef resets it to empty.
                   5702:     \writetocentry{\toctype}{#1}{#3}%
                   5703:     %
                   5704:     % For pdftex, we have to write out the node definition (aka, make
                   5705:     % the pdfdest) after any page break, but before the actual text has
                   5706:     % been typeset.  If the destination for the pdf outline is after the
                   5707:     % text, then jumping from the outline may wind up with the text not
                   5708:     % being visible, for instance under high magnification.
                   5709:     \donoderef{#2}%
                   5710:     %
                   5711:     % Typeset the actual heading.
                   5712:     \nobreak % Avoid page breaks at the interline glue.
                   5713:     \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \ptexraggedright
                   5714:           \hangindent=\wd0 \centerparametersmaybe
                   5715:           \unhbox0 #1\par}%
                   5716:   }%
                   5717:   \nobreak\bigskip % no page break after a chapter title
                   5718:   \nobreak
                   5719: }
                   5720: 
                   5721: % @centerchap -- centered and unnumbered.
                   5722: \let\centerparametersmaybe = \relax
                   5723: \def\centerparameters{%
                   5724:   \advance\rightskip by 3\rightskip
                   5725:   \leftskip = \rightskip
                   5726:   \parfillskip = 0pt
                   5727: }
                   5728: 
                   5729: 
                   5730: % I don't think this chapter style is supported any more, so I'm not
                   5731: % updating it with the new noderef stuff.  We'll see.  --karl, 11aug03.
                   5732: %
                   5733: \def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
                   5734: %
                   5735: \def\unnchfopen #1{%
                   5736: \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
                   5737:                        \parindent=0pt\ptexraggedright
                   5738:                        \rmisbold #1\hfill}}\bigskip \par\nobreak
                   5739: }
                   5740: \def\chfopen #1#2{\chapoddpage {\chapfonts
                   5741: \vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
                   5742: \par\penalty 5000 %
                   5743: }
                   5744: \def\centerchfopen #1{%
                   5745: \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
                   5746:                        \parindent=0pt
                   5747:                        \hfill {\rmisbold #1}\hfill}}\bigskip \par\nobreak
                   5748: }
                   5749: \def\CHAPFopen{%
                   5750:   \global\let\chapmacro=\chfopen
                   5751:   \global\let\centerchapmacro=\centerchfopen}
                   5752: 
                   5753: 
                   5754: % Section titles.  These macros combine the section number parts and
                   5755: % call the generic \sectionheading to do the printing.
                   5756: %
                   5757: \newskip\secheadingskip
                   5758: \def\secheadingbreak{\dobreak \secheadingskip{-1000}}
                   5759: 
                   5760: % Subsection titles.
                   5761: \newskip\subsecheadingskip
                   5762: \def\subsecheadingbreak{\dobreak \subsecheadingskip{-500}}
                   5763: 
                   5764: % Subsubsection titles.
                   5765: \def\subsubsecheadingskip{\subsecheadingskip}
                   5766: \def\subsubsecheadingbreak{\subsecheadingbreak}
                   5767: 
                   5768: 
                   5769: % Print any size, any type, section title.
                   5770: %
                   5771: % #1 is the text, #2 is the section level (sec/subsec/subsubsec), #3 is
                   5772: % the section type for xrefs (Ynumbered, Ynothing, Yappendix), #4 is the
                   5773: % section number.
                   5774: %
                   5775: \def\seckeyword{sec}
                   5776: %
                   5777: \def\sectionheading#1#2#3#4{%
                   5778:   {%
1.1.1.2   misho    5779:     \checkenv{}% should not be in an environment.
                   5780:     %
1.1       misho    5781:     % Switch to the right set of fonts.
                   5782:     \csname #2fonts\endcsname \rmisbold
                   5783:     %
                   5784:     \def\sectionlevel{#2}%
                   5785:     \def\temptype{#3}%
                   5786:     %
                   5787:     % Insert first mark before the heading break (see notes for \domark).
                   5788:     \let\prevsectiondefs=\lastsectiondefs
                   5789:     \ifx\temptype\Ynothingkeyword
                   5790:       \ifx\sectionlevel\seckeyword
                   5791:         \gdef\lastsectiondefs{\gdef\thissectionname{#1}\gdef\thissectionnum{}%
                   5792:                               \gdef\thissection{\thissectionname}}%
                   5793:       \fi
                   5794:     \else\ifx\temptype\Yomitfromtockeyword
                   5795:       % Don't redefine \thissection.
                   5796:     \else\ifx\temptype\Yappendixkeyword
                   5797:       \ifx\sectionlevel\seckeyword
                   5798:         \toks0={#1}%
                   5799:         \xdef\lastsectiondefs{%
                   5800:           \gdef\noexpand\thissectionname{\the\toks0}%
                   5801:           \gdef\noexpand\thissectionnum{#4}%
                   5802:           % \noexpand\putwordSection avoids expanding indigestible
                   5803:           % commands in some of the translations.
                   5804:           \gdef\noexpand\thissection{\noexpand\putwordSection{}
                   5805:                                      \noexpand\thissectionnum:
                   5806:                                      \noexpand\thissectionname}%
                   5807:         }%
                   5808:       \fi
                   5809:     \else
                   5810:       \ifx\sectionlevel\seckeyword
                   5811:         \toks0={#1}%
                   5812:         \xdef\lastsectiondefs{%
                   5813:           \gdef\noexpand\thissectionname{\the\toks0}%
                   5814:           \gdef\noexpand\thissectionnum{#4}%
                   5815:           % \noexpand\putwordSection avoids expanding indigestible
                   5816:           % commands in some of the translations.
                   5817:           \gdef\noexpand\thissection{\noexpand\putwordSection{}
                   5818:                                      \noexpand\thissectionnum:
                   5819:                                      \noexpand\thissectionname}%
                   5820:         }%
                   5821:       \fi
                   5822:     \fi\fi\fi
                   5823:     %
                   5824:     % Go into vertical mode.  Usually we'll already be there, but we
                   5825:     % don't want the following whatsit to end up in a preceding paragraph
                   5826:     % if the document didn't happen to have a blank line.
                   5827:     \par
                   5828:     %
                   5829:     % Output the mark.  Pass it through \safewhatsit, to take care of
                   5830:     % the preceding space.
                   5831:     \safewhatsit\domark
                   5832:     %
                   5833:     % Insert space above the heading.
                   5834:     \csname #2headingbreak\endcsname
                   5835:     %
                   5836:     % Now the second mark, after the heading break.  No break points
                   5837:     % between here and the heading.
                   5838:     \let\prevsectiondefs=\lastsectiondefs
                   5839:     \domark
                   5840:     %
                   5841:     % Only insert the space after the number if we have a section number.
                   5842:     \ifx\temptype\Ynothingkeyword
                   5843:       \setbox0 = \hbox{}%
                   5844:       \def\toctype{unn}%
                   5845:       \gdef\lastsection{#1}%
                   5846:     \else\ifx\temptype\Yomitfromtockeyword
                   5847:       % for @headings -- no section number, don't include in toc,
                   5848:       % and don't redefine \lastsection.
                   5849:       \setbox0 = \hbox{}%
                   5850:       \def\toctype{omit}%
                   5851:       \let\sectionlevel=\empty
                   5852:     \else\ifx\temptype\Yappendixkeyword
                   5853:       \setbox0 = \hbox{#4\enspace}%
                   5854:       \def\toctype{app}%
                   5855:       \gdef\lastsection{#1}%
                   5856:     \else
                   5857:       \setbox0 = \hbox{#4\enspace}%
                   5858:       \def\toctype{num}%
                   5859:       \gdef\lastsection{#1}%
                   5860:     \fi\fi\fi
                   5861:     %
                   5862:     % Write the toc entry (before \donoderef).  See comments in \chapmacro.
                   5863:     \writetocentry{\toctype\sectionlevel}{#1}{#4}%
                   5864:     %
                   5865:     % Write the node reference (= pdf destination for pdftex).
                   5866:     % Again, see comments in \chapmacro.
                   5867:     \donoderef{#3}%
                   5868:     %
                   5869:     % Interline glue will be inserted when the vbox is completed.
                   5870:     % That glue will be a valid breakpoint for the page, since it'll be
                   5871:     % preceded by a whatsit (usually from the \donoderef, or from the
                   5872:     % \writetocentry if there was no node).  We don't want to allow that
                   5873:     % break, since then the whatsits could end up on page n while the
                   5874:     % section is on page n+1, thus toc/etc. are wrong.  Debian bug 276000.
                   5875:     \nobreak
                   5876:     %
                   5877:     % Output the actual section heading.
                   5878:     \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \ptexraggedright
                   5879:           \hangindent=\wd0  % zero if no section number
                   5880:           \unhbox0 #1}%
                   5881:   }%
                   5882:   % Add extra space after the heading -- half of whatever came above it.
                   5883:   % Don't allow stretch, though.
                   5884:   \kern .5 \csname #2headingskip\endcsname
                   5885:   %
                   5886:   % Do not let the kern be a potential breakpoint, as it would be if it
                   5887:   % was followed by glue.
                   5888:   \nobreak
                   5889:   %
                   5890:   % We'll almost certainly start a paragraph next, so don't let that
                   5891:   % glue accumulate.  (Not a breakpoint because it's preceded by a
1.1.1.3 ! misho    5892:   % discardable item.)  However, when a paragraph is not started next
        !          5893:   % (\startdefun, \cartouche, \center, etc.), this needs to be wiped out
        !          5894:   % or the negative glue will cause weirdly wrong output, typically
        !          5895:   % obscuring the section heading with something else.
1.1       misho    5896:   \vskip-\parskip
                   5897:   %
1.1.1.3 ! misho    5898:   % This is so the last item on the main vertical list is a known
        !          5899:   % \penalty > 10000, so \startdefun, etc., can recognize the situation
        !          5900:   % and do the needful.
1.1       misho    5901:   \penalty 10001
                   5902: }
                   5903: 
                   5904: 
                   5905: \message{toc,}
                   5906: % Table of contents.
                   5907: \newwrite\tocfile
                   5908: 
                   5909: % Write an entry to the toc file, opening it if necessary.
                   5910: % Called from @chapter, etc.
                   5911: %
                   5912: % Example usage: \writetocentry{sec}{Section Name}{\the\chapno.\the\secno}
                   5913: % We append the current node name (if any) and page number as additional
                   5914: % arguments for the \{chap,sec,...}entry macros which will eventually
                   5915: % read this.  The node name is used in the pdf outlines as the
                   5916: % destination to jump to.
                   5917: %
                   5918: % We open the .toc file for writing here instead of at @setfilename (or
                   5919: % any other fixed time) so that @contents can be anywhere in the document.
                   5920: % But if #1 is `omit', then we don't do anything.  This is used for the
                   5921: % table of contents chapter openings themselves.
                   5922: %
                   5923: \newif\iftocfileopened
                   5924: \def\omitkeyword{omit}%
                   5925: %
                   5926: \def\writetocentry#1#2#3{%
                   5927:   \edef\writetoctype{#1}%
                   5928:   \ifx\writetoctype\omitkeyword \else
                   5929:     \iftocfileopened\else
                   5930:       \immediate\openout\tocfile = \jobname.toc
                   5931:       \global\tocfileopenedtrue
                   5932:     \fi
                   5933:     %
                   5934:     \iflinks
                   5935:       {\atdummies
                   5936:        \edef\temp{%
                   5937:          \write\tocfile{@#1entry{#2}{#3}{\lastnode}{\noexpand\folio}}}%
                   5938:        \temp
                   5939:       }%
                   5940:     \fi
                   5941:   \fi
                   5942:   %
                   5943:   % Tell \shipout to create a pdf destination on each page, if we're
                   5944:   % writing pdf.  These are used in the table of contents.  We can't
                   5945:   % just write one on every page because the title pages are numbered
                   5946:   % 1 and 2 (the page numbers aren't printed), and so are the first
                   5947:   % two pages of the document.  Thus, we'd have two destinations named
                   5948:   % `1', and two named `2'.
                   5949:   \ifpdf \global\pdfmakepagedesttrue \fi
                   5950: }
                   5951: 
                   5952: 
                   5953: % These characters do not print properly in the Computer Modern roman
                   5954: % fonts, so we must take special care.  This is more or less redundant
                   5955: % with the Texinfo input format setup at the end of this file.
                   5956: %
                   5957: \def\activecatcodes{%
                   5958:   \catcode`\"=\active
                   5959:   \catcode`\$=\active
                   5960:   \catcode`\<=\active
                   5961:   \catcode`\>=\active
                   5962:   \catcode`\\=\active
                   5963:   \catcode`\^=\active
                   5964:   \catcode`\_=\active
                   5965:   \catcode`\|=\active
                   5966:   \catcode`\~=\active
                   5967: }
                   5968: 
                   5969: 
                   5970: % Read the toc file, which is essentially Texinfo input.
                   5971: \def\readtocfile{%
                   5972:   \setupdatafile
                   5973:   \activecatcodes
                   5974:   \input \tocreadfilename
                   5975: }
                   5976: 
                   5977: \newskip\contentsrightmargin \contentsrightmargin=1in
                   5978: \newcount\savepageno
                   5979: \newcount\lastnegativepageno \lastnegativepageno = -1
                   5980: 
                   5981: % Prepare to read what we've written to \tocfile.
                   5982: %
                   5983: \def\startcontents#1{%
                   5984:   % If @setchapternewpage on, and @headings double, the contents should
                   5985:   % start on an odd page, unlike chapters.  Thus, we maintain
                   5986:   % \contentsalignmacro in parallel with \pagealignmacro.
                   5987:   % From: Torbjorn Granlund <tege@matematik.su.se>
                   5988:   \contentsalignmacro
                   5989:   \immediate\closeout\tocfile
                   5990:   %
                   5991:   % Don't need to put `Contents' or `Short Contents' in the headline.
                   5992:   % It is abundantly clear what they are.
                   5993:   \chapmacro{#1}{Yomitfromtoc}{}%
                   5994:   %
                   5995:   \savepageno = \pageno
                   5996:   \begingroup                  % Set up to handle contents files properly.
                   5997:     \raggedbottom              % Worry more about breakpoints than the bottom.
                   5998:     \advance\hsize by -\contentsrightmargin % Don't use the full line length.
                   5999:     %
                   6000:     % Roman numerals for page numbers.
                   6001:     \ifnum \pageno>0 \global\pageno = \lastnegativepageno \fi
                   6002: }
                   6003: 
                   6004: % redefined for the two-volume lispref.  We always output on
                   6005: % \jobname.toc even if this is redefined.
                   6006: %
                   6007: \def\tocreadfilename{\jobname.toc}
                   6008: 
                   6009: % Normal (long) toc.
                   6010: %
                   6011: \def\contents{%
                   6012:   \startcontents{\putwordTOC}%
                   6013:     \openin 1 \tocreadfilename\space
                   6014:     \ifeof 1 \else
                   6015:       \readtocfile
                   6016:     \fi
                   6017:     \vfill \eject
                   6018:     \contentsalignmacro % in case @setchapternewpage odd is in effect
                   6019:     \ifeof 1 \else
                   6020:       \pdfmakeoutlines
                   6021:     \fi
                   6022:     \closein 1
                   6023:   \endgroup
                   6024:   \lastnegativepageno = \pageno
                   6025:   \global\pageno = \savepageno
                   6026: }
                   6027: 
                   6028: % And just the chapters.
                   6029: \def\summarycontents{%
                   6030:   \startcontents{\putwordShortTOC}%
                   6031:     %
1.1.1.2   misho    6032:     \let\partentry = \shortpartentry
1.1       misho    6033:     \let\numchapentry = \shortchapentry
                   6034:     \let\appentry = \shortchapentry
                   6035:     \let\unnchapentry = \shortunnchapentry
                   6036:     % We want a true roman here for the page numbers.
                   6037:     \secfonts
                   6038:     \let\rm=\shortcontrm \let\bf=\shortcontbf
                   6039:     \let\sl=\shortcontsl \let\tt=\shortconttt
                   6040:     \rm
                   6041:     \hyphenpenalty = 10000
                   6042:     \advance\baselineskip by 1pt % Open it up a little.
                   6043:     \def\numsecentry##1##2##3##4{}
                   6044:     \let\appsecentry = \numsecentry
                   6045:     \let\unnsecentry = \numsecentry
                   6046:     \let\numsubsecentry = \numsecentry
                   6047:     \let\appsubsecentry = \numsecentry
                   6048:     \let\unnsubsecentry = \numsecentry
                   6049:     \let\numsubsubsecentry = \numsecentry
                   6050:     \let\appsubsubsecentry = \numsecentry
                   6051:     \let\unnsubsubsecentry = \numsecentry
                   6052:     \openin 1 \tocreadfilename\space
                   6053:     \ifeof 1 \else
                   6054:       \readtocfile
                   6055:     \fi
                   6056:     \closein 1
                   6057:     \vfill \eject
                   6058:     \contentsalignmacro % in case @setchapternewpage odd is in effect
                   6059:   \endgroup
                   6060:   \lastnegativepageno = \pageno
                   6061:   \global\pageno = \savepageno
                   6062: }
                   6063: \let\shortcontents = \summarycontents
                   6064: 
                   6065: % Typeset the label for a chapter or appendix for the short contents.
                   6066: % The arg is, e.g., `A' for an appendix, or `3' for a chapter.
                   6067: %
                   6068: \def\shortchaplabel#1{%
                   6069:   % This space should be enough, since a single number is .5em, and the
                   6070:   % widest letter (M) is 1em, at least in the Computer Modern fonts.
                   6071:   % But use \hss just in case.
                   6072:   % (This space doesn't include the extra space that gets added after
                   6073:   % the label; that gets put in by \shortchapentry above.)
                   6074:   %
                   6075:   % We'd like to right-justify chapter numbers, but that looks strange
                   6076:   % with appendix letters.  And right-justifying numbers and
                   6077:   % left-justifying letters looks strange when there is less than 10
                   6078:   % chapters.  Have to read the whole toc once to know how many chapters
                   6079:   % there are before deciding ...
                   6080:   \hbox to 1em{#1\hss}%
                   6081: }
                   6082: 
                   6083: % These macros generate individual entries in the table of contents.
                   6084: % The first argument is the chapter or section name.
                   6085: % The last argument is the page number.
                   6086: % The arguments in between are the chapter number, section number, ...
                   6087: 
1.1.1.2   misho    6088: % Parts, in the main contents.  Replace the part number, which doesn't
                   6089: % exist, with an empty box.  Let's hope all the numbers have the same width.
                   6090: % Also ignore the page number, which is conventionally not printed.
                   6091: \def\numeralbox{\setbox0=\hbox{8}\hbox to \wd0{\hfil}}
                   6092: \def\partentry#1#2#3#4{\dochapentry{\numeralbox\labelspace#1}{}}
                   6093: %
                   6094: % Parts, in the short toc.
                   6095: \def\shortpartentry#1#2#3#4{%
                   6096:   \penalty-300
                   6097:   \vskip.5\baselineskip plus.15\baselineskip minus.1\baselineskip
                   6098:   \shortchapentry{{\bf #1}}{\numeralbox}{}{}%
                   6099: }
                   6100: 
1.1       misho    6101: % Chapters, in the main contents.
                   6102: \def\numchapentry#1#2#3#4{\dochapentry{#2\labelspace#1}{#4}}
                   6103: %
                   6104: % Chapters, in the short toc.
                   6105: % See comments in \dochapentry re vbox and related settings.
                   6106: \def\shortchapentry#1#2#3#4{%
                   6107:   \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#4\egroup}%
                   6108: }
                   6109: 
                   6110: % Appendices, in the main contents.
                   6111: % Need the word Appendix, and a fixed-size box.
                   6112: %
                   6113: \def\appendixbox#1{%
                   6114:   % We use M since it's probably the widest letter.
                   6115:   \setbox0 = \hbox{\putwordAppendix{} M}%
                   6116:   \hbox to \wd0{\putwordAppendix{} #1\hss}}
                   6117: %
                   6118: \def\appentry#1#2#3#4{\dochapentry{\appendixbox{#2}\labelspace#1}{#4}}
                   6119: 
                   6120: % Unnumbered chapters.
                   6121: \def\unnchapentry#1#2#3#4{\dochapentry{#1}{#4}}
                   6122: \def\shortunnchapentry#1#2#3#4{\tocentry{#1}{\doshortpageno\bgroup#4\egroup}}
                   6123: 
                   6124: % Sections.
                   6125: \def\numsecentry#1#2#3#4{\dosecentry{#2\labelspace#1}{#4}}
                   6126: \let\appsecentry=\numsecentry
                   6127: \def\unnsecentry#1#2#3#4{\dosecentry{#1}{#4}}
                   6128: 
                   6129: % Subsections.
                   6130: \def\numsubsecentry#1#2#3#4{\dosubsecentry{#2\labelspace#1}{#4}}
                   6131: \let\appsubsecentry=\numsubsecentry
                   6132: \def\unnsubsecentry#1#2#3#4{\dosubsecentry{#1}{#4}}
                   6133: 
                   6134: % And subsubsections.
                   6135: \def\numsubsubsecentry#1#2#3#4{\dosubsubsecentry{#2\labelspace#1}{#4}}
                   6136: \let\appsubsubsecentry=\numsubsubsecentry
                   6137: \def\unnsubsubsecentry#1#2#3#4{\dosubsubsecentry{#1}{#4}}
                   6138: 
                   6139: % This parameter controls the indentation of the various levels.
                   6140: % Same as \defaultparindent.
                   6141: \newdimen\tocindent \tocindent = 15pt
                   6142: 
                   6143: % Now for the actual typesetting. In all these, #1 is the text and #2 is the
                   6144: % page number.
                   6145: %
                   6146: % If the toc has to be broken over pages, we want it to be at chapters
                   6147: % if at all possible; hence the \penalty.
                   6148: \def\dochapentry#1#2{%
                   6149:    \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip
                   6150:    \begingroup
                   6151:      \chapentryfonts
                   6152:      \tocentry{#1}{\dopageno\bgroup#2\egroup}%
                   6153:    \endgroup
                   6154:    \nobreak\vskip .25\baselineskip plus.1\baselineskip
                   6155: }
                   6156: 
                   6157: \def\dosecentry#1#2{\begingroup
                   6158:   \secentryfonts \leftskip=\tocindent
                   6159:   \tocentry{#1}{\dopageno\bgroup#2\egroup}%
                   6160: \endgroup}
                   6161: 
                   6162: \def\dosubsecentry#1#2{\begingroup
                   6163:   \subsecentryfonts \leftskip=2\tocindent
                   6164:   \tocentry{#1}{\dopageno\bgroup#2\egroup}%
                   6165: \endgroup}
                   6166: 
                   6167: \def\dosubsubsecentry#1#2{\begingroup
                   6168:   \subsubsecentryfonts \leftskip=3\tocindent
                   6169:   \tocentry{#1}{\dopageno\bgroup#2\egroup}%
                   6170: \endgroup}
                   6171: 
                   6172: % We use the same \entry macro as for the index entries.
                   6173: \let\tocentry = \entry
                   6174: 
                   6175: % Space between chapter (or whatever) number and the title.
                   6176: \def\labelspace{\hskip1em \relax}
                   6177: 
                   6178: \def\dopageno#1{{\rm #1}}
                   6179: \def\doshortpageno#1{{\rm #1}}
                   6180: 
                   6181: \def\chapentryfonts{\secfonts \rm}
                   6182: \def\secentryfonts{\textfonts}
                   6183: \def\subsecentryfonts{\textfonts}
                   6184: \def\subsubsecentryfonts{\textfonts}
                   6185: 
                   6186: 
                   6187: \message{environments,}
                   6188: % @foo ... @end foo.
                   6189: 
1.1.1.2   misho    6190: % @tex ... @end tex    escapes into raw TeX temporarily.
1.1       misho    6191: % One exception: @ is still an escape character, so that @end tex works.
1.1.1.2   misho    6192: % But \@ or @@ will get a plain @ character.
1.1       misho    6193: 
                   6194: \envdef\tex{%
                   6195:   \setupmarkupstyle{tex}%
                   6196:   \catcode `\\=0 \catcode `\{=1 \catcode `\}=2
                   6197:   \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
                   6198:   \catcode `\^=7 \catcode `\_=8 \catcode `\~=\active \let~=\tie
                   6199:   \catcode `\%=14
                   6200:   \catcode `\+=\other
                   6201:   \catcode `\"=\other
                   6202:   \catcode `\|=\other
                   6203:   \catcode `\<=\other
                   6204:   \catcode `\>=\other
                   6205:   \catcode`\`=\other
                   6206:   \catcode`\'=\other
                   6207:   \escapechar=`\\
                   6208:   %
1.1.1.2   misho    6209:   % ' is active in math mode (mathcode"8000).  So reset it, and all our
                   6210:   % other math active characters (just in case), to plain's definitions.
                   6211:   \mathactive
                   6212:   %
1.1       misho    6213:   \let\b=\ptexb
                   6214:   \let\bullet=\ptexbullet
                   6215:   \let\c=\ptexc
                   6216:   \let\,=\ptexcomma
                   6217:   \let\.=\ptexdot
                   6218:   \let\dots=\ptexdots
                   6219:   \let\equiv=\ptexequiv
                   6220:   \let\!=\ptexexclam
                   6221:   \let\i=\ptexi
                   6222:   \let\indent=\ptexindent
                   6223:   \let\noindent=\ptexnoindent
                   6224:   \let\{=\ptexlbrace
                   6225:   \let\+=\tabalign
                   6226:   \let\}=\ptexrbrace
                   6227:   \let\/=\ptexslash
                   6228:   \let\*=\ptexstar
                   6229:   \let\t=\ptext
                   6230:   \expandafter \let\csname top\endcsname=\ptextop  % outer
                   6231:   \let\frenchspacing=\plainfrenchspacing
                   6232:   %
                   6233:   \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}%
                   6234:   \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}%
                   6235:   \def\@{@}%
                   6236: }
                   6237: % There is no need to define \Etex.
                   6238: 
                   6239: % Define @lisp ... @end lisp.
                   6240: % @lisp environment forms a group so it can rebind things,
                   6241: % including the definition of @end lisp (which normally is erroneous).
                   6242: 
                   6243: % Amount to narrow the margins by for @lisp.
                   6244: \newskip\lispnarrowing \lispnarrowing=0.4in
                   6245: 
                   6246: % This is the definition that ^^M gets inside @lisp, @example, and other
                   6247: % such environments.  \null is better than a space, since it doesn't
                   6248: % have any width.
                   6249: \def\lisppar{\null\endgraf}
                   6250: 
                   6251: % This space is always present above and below environments.
                   6252: \newskip\envskipamount \envskipamount = 0pt
                   6253: 
                   6254: % Make spacing and below environment symmetrical.  We use \parskip here
                   6255: % to help in doing that, since in @example-like environments \parskip
                   6256: % is reset to zero; thus the \afterenvbreak inserts no space -- but the
                   6257: % start of the next paragraph will insert \parskip.
                   6258: %
                   6259: \def\aboveenvbreak{{%
                   6260:   % =10000 instead of <10000 because of a special case in \itemzzz and
                   6261:   % \sectionheading, q.v.
                   6262:   \ifnum \lastpenalty=10000 \else
                   6263:     \advance\envskipamount by \parskip
                   6264:     \endgraf
                   6265:     \ifdim\lastskip<\envskipamount
                   6266:       \removelastskip
                   6267:       % it's not a good place to break if the last penalty was \nobreak
                   6268:       % or better ...
                   6269:       \ifnum\lastpenalty<10000 \penalty-50 \fi
                   6270:       \vskip\envskipamount
                   6271:     \fi
                   6272:   \fi
                   6273: }}
                   6274: 
                   6275: \let\afterenvbreak = \aboveenvbreak
                   6276: 
                   6277: % \nonarrowing is a flag.  If "set", @lisp etc don't narrow margins; it will
                   6278: % also clear it, so that its embedded environments do the narrowing again.
                   6279: \let\nonarrowing=\relax
                   6280: 
                   6281: % @cartouche ... @end cartouche: draw rectangle w/rounded corners around
                   6282: % environment contents.
                   6283: \font\circle=lcircle10
                   6284: \newdimen\circthick
                   6285: \newdimen\cartouter\newdimen\cartinner
                   6286: \newskip\normbskip\newskip\normpskip\newskip\normlskip
                   6287: \circthick=\fontdimen8\circle
                   6288: %
                   6289: \def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth
                   6290: \def\ctr{{\hskip 6pt\circle\char'010}}
                   6291: \def\cbl{{\circle\char'012\hskip -6pt}}
                   6292: \def\cbr{{\hskip 6pt\circle\char'011}}
                   6293: \def\carttop{\hbox to \cartouter{\hskip\lskip
                   6294:         \ctl\leaders\hrule height\circthick\hfil\ctr
                   6295:         \hskip\rskip}}
                   6296: \def\cartbot{\hbox to \cartouter{\hskip\lskip
                   6297:         \cbl\leaders\hrule height\circthick\hfil\cbr
                   6298:         \hskip\rskip}}
                   6299: %
                   6300: \newskip\lskip\newskip\rskip
                   6301: 
                   6302: \envdef\cartouche{%
                   6303:   \ifhmode\par\fi  % can't be in the midst of a paragraph.
                   6304:   \startsavinginserts
                   6305:   \lskip=\leftskip \rskip=\rightskip
                   6306:   \leftskip=0pt\rightskip=0pt % we want these *outside*.
                   6307:   \cartinner=\hsize \advance\cartinner by-\lskip
                   6308:   \advance\cartinner by-\rskip
                   6309:   \cartouter=\hsize
                   6310:   \advance\cartouter by 18.4pt % allow for 3pt kerns on either
                   6311:                                % side, and for 6pt waste from
                   6312:                                % each corner char, and rule thickness
                   6313:   \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
                   6314:   % Flag to tell @lisp, etc., not to narrow margin.
                   6315:   \let\nonarrowing = t%
1.1.1.2   misho    6316:   %
                   6317:   % If this cartouche directly follows a sectioning command, we need the
                   6318:   % \parskip glue (backspaced over by default) or the cartouche can
                   6319:   % collide with the section heading.
1.1.1.3 ! misho    6320:   \ifnum\lastpenalty>10000 \vskip\parskip \penalty\lastpenalty \fi
1.1.1.2   misho    6321:   %
1.1       misho    6322:   \vbox\bgroup
                   6323:       \baselineskip=0pt\parskip=0pt\lineskip=0pt
                   6324:       \carttop
                   6325:       \hbox\bgroup
                   6326:          \hskip\lskip
                   6327:          \vrule\kern3pt
                   6328:          \vbox\bgroup
                   6329:              \kern3pt
                   6330:              \hsize=\cartinner
                   6331:              \baselineskip=\normbskip
                   6332:              \lineskip=\normlskip
                   6333:              \parskip=\normpskip
                   6334:              \vskip -\parskip
1.1.1.2   misho    6335:              \comment % For explanation, see the end of def\group.
1.1       misho    6336: }
                   6337: \def\Ecartouche{%
                   6338:               \ifhmode\par\fi
                   6339:              \kern3pt
                   6340:          \egroup
                   6341:          \kern3pt\vrule
                   6342:          \hskip\rskip
                   6343:       \egroup
                   6344:       \cartbot
                   6345:   \egroup
                   6346:   \checkinserts
                   6347: }
                   6348: 
                   6349: 
                   6350: % This macro is called at the beginning of all the @example variants,
                   6351: % inside a group.
                   6352: \newdimen\nonfillparindent
                   6353: \def\nonfillstart{%
                   6354:   \aboveenvbreak
                   6355:   \hfuzz = 12pt % Don't be fussy
                   6356:   \sepspaces % Make spaces be word-separators rather than space tokens.
                   6357:   \let\par = \lisppar % don't ignore blank lines
                   6358:   \obeylines % each line of input is a line of output
                   6359:   \parskip = 0pt
                   6360:   % Turn off paragraph indentation but redefine \indent to emulate
                   6361:   % the normal \indent.
                   6362:   \nonfillparindent=\parindent
                   6363:   \parindent = 0pt
                   6364:   \let\indent\nonfillindent
                   6365:   %
                   6366:   \emergencystretch = 0pt % don't try to avoid overfull boxes
                   6367:   \ifx\nonarrowing\relax
                   6368:     \advance \leftskip by \lispnarrowing
                   6369:     \exdentamount=\lispnarrowing
                   6370:   \else
                   6371:     \let\nonarrowing = \relax
                   6372:   \fi
                   6373:   \let\exdent=\nofillexdent
                   6374: }
                   6375: 
                   6376: \begingroup
                   6377: \obeyspaces
                   6378: % We want to swallow spaces (but not other tokens) after the fake
                   6379: % @indent in our nonfill-environments, where spaces are normally
                   6380: % active and set to @tie, resulting in them not being ignored after
                   6381: % @indent.
                   6382: \gdef\nonfillindent{\futurelet\temp\nonfillindentcheck}%
                   6383: \gdef\nonfillindentcheck{%
                   6384: \ifx\temp %
                   6385: \expandafter\nonfillindentgobble%
                   6386: \else%
                   6387: \leavevmode\nonfillindentbox%
                   6388: \fi%
                   6389: }%
                   6390: \endgroup
                   6391: \def\nonfillindentgobble#1{\nonfillindent}
                   6392: \def\nonfillindentbox{\hbox to \nonfillparindent{\hss}}
                   6393: 
                   6394: % If you want all examples etc. small: @set dispenvsize small.
                   6395: % If you want even small examples the full size: @set dispenvsize nosmall.
                   6396: % This affects the following displayed environments:
                   6397: %    @example, @display, @format, @lisp
                   6398: %
                   6399: \def\smallword{small}
                   6400: \def\nosmallword{nosmall}
                   6401: \let\SETdispenvsize\relax
                   6402: \def\setnormaldispenv{%
                   6403:   \ifx\SETdispenvsize\smallword
                   6404:     % end paragraph for sake of leading, in case document has no blank
                   6405:     % line.  This is redundant with what happens in \aboveenvbreak, but
                   6406:     % we need to do it before changing the fonts, and it's inconvenient
                   6407:     % to change the fonts afterward.
                   6408:     \ifnum \lastpenalty=10000 \else \endgraf \fi
                   6409:     \smallexamplefonts \rm
                   6410:   \fi
                   6411: }
                   6412: \def\setsmalldispenv{%
                   6413:   \ifx\SETdispenvsize\nosmallword
                   6414:   \else
                   6415:     \ifnum \lastpenalty=10000 \else \endgraf \fi
                   6416:     \smallexamplefonts \rm
                   6417:   \fi
                   6418: }
                   6419: 
                   6420: % We often define two environments, @foo and @smallfoo.
1.1.1.2   misho    6421: % Let's do it in one command.  #1 is the env name, #2 the definition.
                   6422: \def\makedispenvdef#1#2{%
                   6423:   \expandafter\envdef\csname#1\endcsname {\setnormaldispenv #2}%
                   6424:   \expandafter\envdef\csname small#1\endcsname {\setsmalldispenv #2}%
1.1       misho    6425:   \expandafter\let\csname E#1\endcsname \afterenvbreak
                   6426:   \expandafter\let\csname Esmall#1\endcsname \afterenvbreak
                   6427: }
                   6428: 
1.1.1.2   misho    6429: % Define two environment synonyms (#1 and #2) for an environment.
                   6430: \def\maketwodispenvdef#1#2#3{%
                   6431:   \makedispenvdef{#1}{#3}%
                   6432:   \makedispenvdef{#2}{#3}%
1.1       misho    6433: }
1.1.1.2   misho    6434: %
                   6435: % @lisp: indented, narrowed, typewriter font;
                   6436: % @example: same as @lisp.
1.1       misho    6437: %
                   6438: % @smallexample and @smalllisp: use smaller fonts.
                   6439: % Originally contributed by Pavel@xerox.
                   6440: %
1.1.1.2   misho    6441: \maketwodispenvdef{lisp}{example}{%
1.1       misho    6442:   \nonfillstart
                   6443:   \tt\setupmarkupstyle{example}%
                   6444:   \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special.
1.1.1.2   misho    6445:   \gobble % eat return
1.1       misho    6446: }
                   6447: % @display/@smalldisplay: same as @lisp except keep current font.
                   6448: %
1.1.1.2   misho    6449: \makedispenvdef{display}{%
1.1       misho    6450:   \nonfillstart
                   6451:   \gobble
                   6452: }
                   6453: 
                   6454: % @format/@smallformat: same as @display except don't narrow margins.
                   6455: %
1.1.1.2   misho    6456: \makedispenvdef{format}{%
1.1       misho    6457:   \let\nonarrowing = t%
                   6458:   \nonfillstart
                   6459:   \gobble
                   6460: }
                   6461: 
                   6462: % @flushleft: same as @format, but doesn't obey \SETdispenvsize.
                   6463: \envdef\flushleft{%
                   6464:   \let\nonarrowing = t%
                   6465:   \nonfillstart
                   6466:   \gobble
                   6467: }
                   6468: \let\Eflushleft = \afterenvbreak
                   6469: 
                   6470: % @flushright.
                   6471: %
                   6472: \envdef\flushright{%
                   6473:   \let\nonarrowing = t%
                   6474:   \nonfillstart
1.1.1.2   misho    6475:   \advance\leftskip by 0pt plus 1fill\relax
1.1       misho    6476:   \gobble
                   6477: }
                   6478: \let\Eflushright = \afterenvbreak
                   6479: 
                   6480: 
                   6481: % @raggedright does more-or-less normal line breaking but no right
                   6482: % justification.  From plain.tex.
                   6483: \envdef\raggedright{%
                   6484:   \rightskip0pt plus2em \spaceskip.3333em \xspaceskip.5em\relax
                   6485: }
                   6486: \let\Eraggedright\par
                   6487: 
                   6488: \envdef\raggedleft{%
                   6489:   \parindent=0pt \leftskip0pt plus2em
                   6490:   \spaceskip.3333em \xspaceskip.5em \parfillskip=0pt
                   6491:   \hbadness=10000 % Last line will usually be underfull, so turn off
                   6492:                   % badness reporting.
                   6493: }
                   6494: \let\Eraggedleft\par
                   6495: 
                   6496: \envdef\raggedcenter{%
                   6497:   \parindent=0pt \rightskip0pt plus1em \leftskip0pt plus1em
                   6498:   \spaceskip.3333em \xspaceskip.5em \parfillskip=0pt
                   6499:   \hbadness=10000 % Last line will usually be underfull, so turn off
                   6500:                   % badness reporting.
                   6501: }
                   6502: \let\Eraggedcenter\par
                   6503: 
                   6504: 
                   6505: % @quotation does normal linebreaking (hence we can't use \nonfillstart)
                   6506: % and narrows the margins.  We keep \parskip nonzero in general, since
                   6507: % we're doing normal filling.  So, when using \aboveenvbreak and
                   6508: % \afterenvbreak, temporarily make \parskip 0.
                   6509: %
1.1.1.2   misho    6510: \makedispenvdef{quotation}{\quotationstart}
                   6511: %
1.1       misho    6512: \def\quotationstart{%
                   6513:   {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
                   6514:   \parindent=0pt
                   6515:   %
                   6516:   % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
                   6517:   \ifx\nonarrowing\relax
                   6518:     \advance\leftskip by \lispnarrowing
                   6519:     \advance\rightskip by \lispnarrowing
                   6520:     \exdentamount = \lispnarrowing
                   6521:   \else
                   6522:     \let\nonarrowing = \relax
                   6523:   \fi
                   6524:   \parsearg\quotationlabel
                   6525: }
                   6526: 
                   6527: % We have retained a nonzero parskip for the environment, since we're
                   6528: % doing normal filling.
                   6529: %
                   6530: \def\Equotation{%
                   6531:   \par
1.1.1.2   misho    6532:   \ifx\quotationauthor\thisisundefined\else
1.1       misho    6533:     % indent a bit.
                   6534:     \leftline{\kern 2\leftskip \sl ---\quotationauthor}%
                   6535:   \fi
                   6536:   {\parskip=0pt \afterenvbreak}%
                   6537: }
1.1.1.2   misho    6538: \def\Esmallquotation{\Equotation}
1.1       misho    6539: 
                   6540: % If we're given an argument, typeset it in bold with a colon after.
                   6541: \def\quotationlabel#1{%
                   6542:   \def\temp{#1}%
                   6543:   \ifx\temp\empty \else
                   6544:     {\bf #1: }%
                   6545:   \fi
                   6546: }
                   6547: 
                   6548: 
                   6549: % LaTeX-like @verbatim...@end verbatim and @verb{<char>...<char>}
                   6550: % If we want to allow any <char> as delimiter,
                   6551: % we need the curly braces so that makeinfo sees the @verb command, eg:
                   6552: % `@verbx...x' would look like the '@verbx' command.  --janneke@gnu.org
                   6553: %
                   6554: % [Knuth]: Donald Ervin Knuth, 1996.  The TeXbook.
                   6555: %
                   6556: % [Knuth] p.344; only we need to do the other characters Texinfo sets
                   6557: % active too.  Otherwise, they get lost as the first character on a
                   6558: % verbatim line.
                   6559: \def\dospecials{%
                   6560:   \do\ \do\\\do\{\do\}\do\$\do\&%
                   6561:   \do\#\do\^\do\^^K\do\_\do\^^A\do\%\do\~%
                   6562:   \do\<\do\>\do\|\do\@\do+\do\"%
                   6563:   % Don't do the quotes -- if we do, @set txicodequoteundirected and
                   6564:   % @set txicodequotebacktick will not have effect on @verb and
                   6565:   % @verbatim, and ?` and !` ligatures won't get disabled.
                   6566:   %\do\`\do\'%
                   6567: }
                   6568: %
                   6569: % [Knuth] p. 380
                   6570: \def\uncatcodespecials{%
                   6571:   \def\do##1{\catcode`##1=\other}\dospecials}
                   6572: %
                   6573: % Setup for the @verb command.
                   6574: %
                   6575: % Eight spaces for a tab
                   6576: \begingroup
                   6577:   \catcode`\^^I=\active
                   6578:   \gdef\tabeightspaces{\catcode`\^^I=\active\def^^I{\ \ \ \ \ \ \ \ }}
                   6579: \endgroup
                   6580: %
                   6581: \def\setupverb{%
                   6582:   \tt  % easiest (and conventionally used) font for verbatim
                   6583:   \def\par{\leavevmode\endgraf}%
                   6584:   \setupmarkupstyle{verb}%
                   6585:   \tabeightspaces
                   6586:   % Respect line breaks,
                   6587:   % print special symbols as themselves, and
                   6588:   % make each space count
                   6589:   % must do in this order:
                   6590:   \obeylines \uncatcodespecials \sepspaces
                   6591: }
                   6592: 
                   6593: % Setup for the @verbatim environment
                   6594: %
1.1.1.2   misho    6595: % Real tab expansion.
1.1       misho    6596: \newdimen\tabw \setbox0=\hbox{\tt\space} \tabw=8\wd0 % tab amount
                   6597: %
1.1.1.2   misho    6598: % We typeset each line of the verbatim in an \hbox, so we can handle
                   6599: % tabs.  The \global is in case the verbatim line starts with an accent,
                   6600: % or some other command that starts with a begin-group.  Otherwise, the
                   6601: % entire \verbbox would disappear at the corresponding end-group, before
                   6602: % it is typeset.  Meanwhile, we can't have nested verbatim commands
                   6603: % (can we?), so the \global won't be overwriting itself.
                   6604: \newbox\verbbox
                   6605: \def\starttabbox{\global\setbox\verbbox=\hbox\bgroup}
1.1       misho    6606: %
                   6607: \begingroup
                   6608:   \catcode`\^^I=\active
                   6609:   \gdef\tabexpand{%
                   6610:     \catcode`\^^I=\active
                   6611:     \def^^I{\leavevmode\egroup
1.1.1.2   misho    6612:       \dimen\verbbox=\wd\verbbox % the width so far, or since the previous tab
                   6613:       \divide\dimen\verbbox by\tabw
                   6614:       \multiply\dimen\verbbox by\tabw % compute previous multiple of \tabw
                   6615:       \advance\dimen\verbbox by\tabw  % advance to next multiple of \tabw
                   6616:       \wd\verbbox=\dimen\verbbox \box\verbbox \starttabbox
1.1       misho    6617:     }%
                   6618:   }
                   6619: \endgroup
                   6620: 
                   6621: % start the verbatim environment.
                   6622: \def\setupverbatim{%
                   6623:   \let\nonarrowing = t%
                   6624:   \nonfillstart
1.1.1.2   misho    6625:   \tt % easiest (and conventionally used) font for verbatim
                   6626:   % The \leavevmode here is for blank lines.  Otherwise, we would
                   6627:   % never \starttabox and the \egroup would end verbatim mode.
                   6628:   \def\par{\leavevmode\egroup\box\verbbox\endgraf}%
1.1       misho    6629:   \tabexpand
                   6630:   \setupmarkupstyle{verbatim}%
                   6631:   % Respect line breaks,
                   6632:   % print special symbols as themselves, and
1.1.1.2   misho    6633:   % make each space count.
                   6634:   % Must do in this order:
1.1       misho    6635:   \obeylines \uncatcodespecials \sepspaces
                   6636:   \everypar{\starttabbox}%
                   6637: }
                   6638: 
                   6639: % Do the @verb magic: verbatim text is quoted by unique
                   6640: % delimiter characters.  Before first delimiter expect a
                   6641: % right brace, after last delimiter expect closing brace:
                   6642: %
                   6643: %    \def\doverb'{'<char>#1<char>'}'{#1}
                   6644: %
                   6645: % [Knuth] p. 382; only eat outer {}
                   6646: \begingroup
                   6647:   \catcode`[=1\catcode`]=2\catcode`\{=\other\catcode`\}=\other
                   6648:   \gdef\doverb{#1[\def\next##1#1}[##1\endgroup]\next]
                   6649: \endgroup
                   6650: %
                   6651: \def\verb{\begingroup\setupverb\doverb}
                   6652: %
                   6653: %
                   6654: % Do the @verbatim magic: define the macro \doverbatim so that
                   6655: % the (first) argument ends when '@end verbatim' is reached, ie:
                   6656: %
                   6657: %     \def\doverbatim#1@end verbatim{#1}
                   6658: %
                   6659: % For Texinfo it's a lot easier than for LaTeX,
                   6660: % because texinfo's \verbatim doesn't stop at '\end{verbatim}':
                   6661: % we need not redefine '\', '{' and '}'.
                   6662: %
                   6663: % Inspired by LaTeX's verbatim command set [latex.ltx]
                   6664: %
                   6665: \begingroup
                   6666:   \catcode`\ =\active
                   6667:   \obeylines %
                   6668:   % ignore everything up to the first ^^M, that's the newline at the end
                   6669:   % of the @verbatim input line itself.  Otherwise we get an extra blank
                   6670:   % line in the output.
                   6671:   \xdef\doverbatim#1^^M#2@end verbatim{#2\noexpand\end\gobble verbatim}%
                   6672:   % We really want {...\end verbatim} in the body of the macro, but
                   6673:   % without the active space; thus we have to use \xdef and \gobble.
                   6674: \endgroup
                   6675: %
                   6676: \envdef\verbatim{%
                   6677:     \setupverbatim\doverbatim
                   6678: }
                   6679: \let\Everbatim = \afterenvbreak
                   6680: 
                   6681: 
                   6682: % @verbatiminclude FILE - insert text of file in verbatim environment.
                   6683: %
                   6684: \def\verbatiminclude{\parseargusing\filenamecatcodes\doverbatiminclude}
                   6685: %
                   6686: \def\doverbatiminclude#1{%
                   6687:   {%
                   6688:     \makevalueexpandable
                   6689:     \setupverbatim
                   6690:     \indexnofonts       % Allow `@@' and other weird things in file names.
1.1.1.2   misho    6691:     \wlog{texinfo.tex: doing @verbatiminclude of #1^^J}%
1.1       misho    6692:     \input #1
                   6693:     \afterenvbreak
                   6694:   }%
                   6695: }
                   6696: 
                   6697: % @copying ... @end copying.
                   6698: % Save the text away for @insertcopying later.
                   6699: %
                   6700: % We save the uninterpreted tokens, rather than creating a box.
                   6701: % Saving the text in a box would be much easier, but then all the
                   6702: % typesetting commands (@smallbook, font changes, etc.) have to be done
                   6703: % beforehand -- and a) we want @copying to be done first in the source
                   6704: % file; b) letting users define the frontmatter in as flexible order as
                   6705: % possible is very desirable.
                   6706: %
                   6707: \def\copying{\checkenv{}\begingroup\scanargctxt\docopying}
                   6708: \def\docopying#1@end copying{\endgroup\def\copyingtext{#1}}
                   6709: %
                   6710: \def\insertcopying{%
                   6711:   \begingroup
                   6712:     \parindent = 0pt  % paragraph indentation looks wrong on title page
                   6713:     \scanexp\copyingtext
                   6714:   \endgroup
                   6715: }
                   6716: 
                   6717: 
                   6718: \message{defuns,}
                   6719: % @defun etc.
                   6720: 
                   6721: \newskip\defbodyindent \defbodyindent=.4in
                   6722: \newskip\defargsindent \defargsindent=50pt
                   6723: \newskip\deflastargmargin \deflastargmargin=18pt
                   6724: \newcount\defunpenalty
                   6725: 
                   6726: % Start the processing of @deffn:
                   6727: \def\startdefun{%
                   6728:   \ifnum\lastpenalty<10000
                   6729:     \medbreak
                   6730:     \defunpenalty=10003 % Will keep this @deffn together with the
                   6731:                         % following @def command, see below.
                   6732:   \else
                   6733:     % If there are two @def commands in a row, we'll have a \nobreak,
                   6734:     % which is there to keep the function description together with its
                   6735:     % header.  But if there's nothing but headers, we need to allow a
                   6736:     % break somewhere.  Check specifically for penalty 10002, inserted
                   6737:     % by \printdefunline, instead of 10000, since the sectioning
                   6738:     % commands also insert a nobreak penalty, and we don't want to allow
                   6739:     % a break between a section heading and a defun.
                   6740:     %
1.1.1.2   misho    6741:     % As a further refinement, we avoid "club" headers by signalling
1.1       misho    6742:     % with penalty of 10003 after the very first @deffn in the
                   6743:     % sequence (see above), and penalty of 10002 after any following
                   6744:     % @def command.
                   6745:     \ifnum\lastpenalty=10002 \penalty2000 \else \defunpenalty=10002 \fi
                   6746:     %
                   6747:     % Similarly, after a section heading, do not allow a break.
                   6748:     % But do insert the glue.
                   6749:     \medskip  % preceded by discardable penalty, so not a breakpoint
                   6750:   \fi
                   6751:   %
                   6752:   \parindent=0in
                   6753:   \advance\leftskip by \defbodyindent
                   6754:   \exdentamount=\defbodyindent
                   6755: }
                   6756: 
                   6757: \def\dodefunx#1{%
                   6758:   % First, check whether we are in the right environment:
                   6759:   \checkenv#1%
                   6760:   %
                   6761:   % As above, allow line break if we have multiple x headers in a row.
                   6762:   % It's not a great place, though.
                   6763:   \ifnum\lastpenalty=10002 \penalty3000 \else \defunpenalty=10002 \fi
                   6764:   %
                   6765:   % And now, it's time to reuse the body of the original defun:
                   6766:   \expandafter\gobbledefun#1%
                   6767: }
                   6768: \def\gobbledefun#1\startdefun{}
                   6769: 
                   6770: % \printdefunline \deffnheader{text}
                   6771: %
                   6772: \def\printdefunline#1#2{%
                   6773:   \begingroup
                   6774:     % call \deffnheader:
                   6775:     #1#2 \endheader
                   6776:     % common ending:
                   6777:     \interlinepenalty = 10000
1.1.1.2   misho    6778:     \advance\rightskip by 0pt plus 1fil\relax
1.1       misho    6779:     \endgraf
                   6780:     \nobreak\vskip -\parskip
                   6781:     \penalty\defunpenalty  % signal to \startdefun and \dodefunx
                   6782:     % Some of the @defun-type tags do not enable magic parentheses,
                   6783:     % rendering the following check redundant.  But we don't optimize.
                   6784:     \checkparencounts
                   6785:   \endgroup
                   6786: }
                   6787: 
                   6788: \def\Edefun{\endgraf\medbreak}
                   6789: 
                   6790: % \makedefun{deffn} creates \deffn, \deffnx and \Edeffn;
                   6791: % the only thing remaining is to define \deffnheader.
                   6792: %
                   6793: \def\makedefun#1{%
                   6794:   \expandafter\let\csname E#1\endcsname = \Edefun
                   6795:   \edef\temp{\noexpand\domakedefun
                   6796:     \makecsname{#1}\makecsname{#1x}\makecsname{#1header}}%
                   6797:   \temp
                   6798: }
                   6799: 
                   6800: % \domakedefun \deffn \deffnx \deffnheader
                   6801: %
                   6802: % Define \deffn and \deffnx, without parameters.
                   6803: % \deffnheader has to be defined explicitly.
                   6804: %
                   6805: \def\domakedefun#1#2#3{%
                   6806:   \envdef#1{%
                   6807:     \startdefun
1.1.1.2   misho    6808:     \doingtypefnfalse    % distinguish typed functions from all else
1.1       misho    6809:     \parseargusing\activeparens{\printdefunline#3}%
                   6810:   }%
                   6811:   \def#2{\dodefunx#1}%
                   6812:   \def#3%
                   6813: }
                   6814: 
1.1.1.2   misho    6815: \newif\ifdoingtypefn       % doing typed function?
                   6816: \newif\ifrettypeownline    % typeset return type on its own line?
                   6817: 
                   6818: % @deftypefnnewline on|off says whether the return type of typed functions
                   6819: % are printed on their own line.  This affects @deftypefn, @deftypefun,
                   6820: % @deftypeop, and @deftypemethod.
                   6821: % 
                   6822: \parseargdef\deftypefnnewline{%
                   6823:   \def\temp{#1}%
                   6824:   \ifx\temp\onword
                   6825:     \expandafter\let\csname SETtxideftypefnnl\endcsname
                   6826:       = \empty
                   6827:   \else\ifx\temp\offword
                   6828:     \expandafter\let\csname SETtxideftypefnnl\endcsname
                   6829:       = \relax
                   6830:   \else
                   6831:     \errhelp = \EMsimple
                   6832:     \errmessage{Unknown @txideftypefnnl value `\temp',
                   6833:                 must be on|off}%
                   6834:   \fi\fi
                   6835: }
                   6836: 
                   6837: % Untyped functions:
1.1       misho    6838: 
                   6839: % @deffn category name args
                   6840: \makedefun{deffn}{\deffngeneral{}}
                   6841: 
                   6842: % @deffn category class name args
                   6843: \makedefun{defop}#1 {\defopon{#1\ \putwordon}}
                   6844: 
                   6845: % \defopon {category on}class name args
                   6846: \def\defopon#1#2 {\deffngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} }
                   6847: 
                   6848: % \deffngeneral {subind}category name args
                   6849: %
                   6850: \def\deffngeneral#1#2 #3 #4\endheader{%
                   6851:   % Remember that \dosubind{fn}{foo}{} is equivalent to \doind{fn}{foo}.
                   6852:   \dosubind{fn}{\code{#3}}{#1}%
                   6853:   \defname{#2}{}{#3}\magicamp\defunargs{#4\unskip}%
                   6854: }
                   6855: 
1.1.1.2   misho    6856: % Typed functions:
1.1       misho    6857: 
                   6858: % @deftypefn category type name args
                   6859: \makedefun{deftypefn}{\deftypefngeneral{}}
                   6860: 
                   6861: % @deftypeop category class type name args
                   6862: \makedefun{deftypeop}#1 {\deftypeopon{#1\ \putwordon}}
                   6863: 
                   6864: % \deftypeopon {category on}class type name args
                   6865: \def\deftypeopon#1#2 {\deftypefngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} }
                   6866: 
                   6867: % \deftypefngeneral {subind}category type name args
                   6868: %
                   6869: \def\deftypefngeneral#1#2 #3 #4 #5\endheader{%
                   6870:   \dosubind{fn}{\code{#4}}{#1}%
1.1.1.2   misho    6871:   \doingtypefntrue
1.1       misho    6872:   \defname{#2}{#3}{#4}\defunargs{#5\unskip}%
                   6873: }
                   6874: 
1.1.1.2   misho    6875: % Typed variables:
1.1       misho    6876: 
                   6877: % @deftypevr category type var args
                   6878: \makedefun{deftypevr}{\deftypecvgeneral{}}
                   6879: 
                   6880: % @deftypecv category class type var args
                   6881: \makedefun{deftypecv}#1 {\deftypecvof{#1\ \putwordof}}
                   6882: 
                   6883: % \deftypecvof {category of}class type var args
                   6884: \def\deftypecvof#1#2 {\deftypecvgeneral{\putwordof\ \code{#2}}{#1\ \code{#2}} }
                   6885: 
                   6886: % \deftypecvgeneral {subind}category type var args
                   6887: %
                   6888: \def\deftypecvgeneral#1#2 #3 #4 #5\endheader{%
                   6889:   \dosubind{vr}{\code{#4}}{#1}%
                   6890:   \defname{#2}{#3}{#4}\defunargs{#5\unskip}%
                   6891: }
                   6892: 
1.1.1.2   misho    6893: % Untyped variables:
1.1       misho    6894: 
                   6895: % @defvr category var args
                   6896: \makedefun{defvr}#1 {\deftypevrheader{#1} {} }
                   6897: 
                   6898: % @defcv category class var args
                   6899: \makedefun{defcv}#1 {\defcvof{#1\ \putwordof}}
                   6900: 
                   6901: % \defcvof {category of}class var args
                   6902: \def\defcvof#1#2 {\deftypecvof{#1}#2 {} }
                   6903: 
1.1.1.2   misho    6904: % Types:
                   6905: 
1.1       misho    6906: % @deftp category name args
                   6907: \makedefun{deftp}#1 #2 #3\endheader{%
                   6908:   \doind{tp}{\code{#2}}%
                   6909:   \defname{#1}{}{#2}\defunargs{#3\unskip}%
                   6910: }
                   6911: 
                   6912: % Remaining @defun-like shortcuts:
                   6913: \makedefun{defun}{\deffnheader{\putwordDeffunc} }
                   6914: \makedefun{defmac}{\deffnheader{\putwordDefmac} }
                   6915: \makedefun{defspec}{\deffnheader{\putwordDefspec} }
                   6916: \makedefun{deftypefun}{\deftypefnheader{\putwordDeffunc} }
                   6917: \makedefun{defvar}{\defvrheader{\putwordDefvar} }
                   6918: \makedefun{defopt}{\defvrheader{\putwordDefopt} }
                   6919: \makedefun{deftypevar}{\deftypevrheader{\putwordDefvar} }
                   6920: \makedefun{defmethod}{\defopon\putwordMethodon}
                   6921: \makedefun{deftypemethod}{\deftypeopon\putwordMethodon}
                   6922: \makedefun{defivar}{\defcvof\putwordInstanceVariableof}
                   6923: \makedefun{deftypeivar}{\deftypecvof\putwordInstanceVariableof}
                   6924: 
                   6925: % \defname, which formats the name of the @def (not the args).
                   6926: % #1 is the category, such as "Function".
                   6927: % #2 is the return type, if any.
                   6928: % #3 is the function name.
                   6929: %
                   6930: % We are followed by (but not passed) the arguments, if any.
                   6931: %
                   6932: \def\defname#1#2#3{%
1.1.1.2   misho    6933:   \par
1.1       misho    6934:   % Get the values of \leftskip and \rightskip as they were outside the @def...
                   6935:   \advance\leftskip by -\defbodyindent
                   6936:   %
1.1.1.2   misho    6937:   % Determine if we are typesetting the return type of a typed function
                   6938:   % on a line by itself.
                   6939:   \rettypeownlinefalse
                   6940:   \ifdoingtypefn  % doing a typed function specifically?
                   6941:     % then check user option for putting return type on its own line:
                   6942:     \expandafter\ifx\csname SETtxideftypefnnl\endcsname\relax \else
                   6943:       \rettypeownlinetrue
                   6944:     \fi
                   6945:   \fi
                   6946:   %
                   6947:   % How we'll format the category name.  Putting it in brackets helps
1.1       misho    6948:   % distinguish it from the body text that may end up on the next line
                   6949:   % just below it.
                   6950:   \def\temp{#1}%
                   6951:   \setbox0=\hbox{\kern\deflastargmargin \ifx\temp\empty\else [\rm\temp]\fi}
                   6952:   %
1.1.1.2   misho    6953:   % Figure out line sizes for the paragraph shape.  We'll always have at
                   6954:   % least two.
                   6955:   \tempnum = 2
                   6956:   %
1.1       misho    6957:   % The first line needs space for \box0; but if \rightskip is nonzero,
                   6958:   % we need only space for the part of \box0 which exceeds it:
                   6959:   \dimen0=\hsize  \advance\dimen0 by -\wd0  \advance\dimen0 by \rightskip
1.1.1.2   misho    6960:   %
                   6961:   % If doing a return type on its own line, we'll have another line.
                   6962:   \ifrettypeownline
                   6963:     \advance\tempnum by 1
                   6964:     \def\maybeshapeline{0in \hsize}%
                   6965:   \else
                   6966:     \def\maybeshapeline{}%
                   6967:   \fi
                   6968:   %
1.1       misho    6969:   % The continuations:
                   6970:   \dimen2=\hsize  \advance\dimen2 by -\defargsindent
                   6971:   %
1.1.1.2   misho    6972:   % The final paragraph shape:
                   6973:   \parshape \tempnum  0in \dimen0  \maybeshapeline  \defargsindent \dimen2
                   6974:   %
                   6975:   % Put the category name at the right margin.
1.1       misho    6976:   \noindent
                   6977:   \hbox to 0pt{%
                   6978:     \hfil\box0 \kern-\hsize
                   6979:     % \hsize has to be shortened this way:
                   6980:     \kern\leftskip
                   6981:     % Intentionally do not respect \rightskip, since we need the space.
                   6982:   }%
                   6983:   %
                   6984:   % Allow all lines to be underfull without complaint:
                   6985:   \tolerance=10000 \hbadness=10000
                   6986:   \exdentamount=\defbodyindent
                   6987:   {%
                   6988:     % defun fonts. We use typewriter by default (used to be bold) because:
                   6989:     % . we're printing identifiers, they should be in tt in principle.
                   6990:     % . in languages with many accents, such as Czech or French, it's
                   6991:     %   common to leave accents off identifiers.  The result looks ok in
                   6992:     %   tt, but exceedingly strange in rm.
                   6993:     % . we don't want -- and --- to be treated as ligatures.
                   6994:     % . this still does not fix the ?` and !` ligatures, but so far no
                   6995:     %   one has made identifiers using them :).
                   6996:     \df \tt
1.1.1.2   misho    6997:     \def\temp{#2}% text of the return type
                   6998:     \ifx\temp\empty\else
                   6999:       \tclose{\temp}% typeset the return type
                   7000:       \ifrettypeownline
                   7001:         % put return type on its own line; prohibit line break following:
                   7002:         \hfil\vadjust{\nobreak}\break  
                   7003:       \else
                   7004:         \space  % type on same line, so just followed by a space
                   7005:       \fi
                   7006:     \fi           % no return type
1.1       misho    7007:     #3% output function name
                   7008:   }%
                   7009:   {\rm\enskip}% hskip 0.5 em of \tenrm
                   7010:   %
                   7011:   \boldbrax
                   7012:   % arguments will be output next, if any.
                   7013: }
                   7014: 
                   7015: % Print arguments in slanted roman (not ttsl), inconsistently with using
                   7016: % tt for the name.  This is because literal text is sometimes needed in
                   7017: % the argument list (groff manual), and ttsl and tt are not very
                   7018: % distinguishable.  Prevent hyphenation at `-' chars.
                   7019: %
                   7020: \def\defunargs#1{%
                   7021:   % use sl by default (not ttsl),
                   7022:   % tt for the names.
                   7023:   \df \sl \hyphenchar\font=0
                   7024:   %
                   7025:   % On the other hand, if an argument has two dashes (for instance), we
                   7026:   % want a way to get ttsl.  Let's try @var for that.
                   7027:   \def\var##1{{\setupmarkupstyle{var}\ttslanted{##1}}}%
                   7028:   #1%
                   7029:   \sl\hyphenchar\font=45
                   7030: }
                   7031: 
                   7032: % We want ()&[] to print specially on the defun line.
                   7033: %
                   7034: \def\activeparens{%
                   7035:   \catcode`\(=\active \catcode`\)=\active
                   7036:   \catcode`\[=\active \catcode`\]=\active
                   7037:   \catcode`\&=\active
                   7038: }
                   7039: 
                   7040: % Make control sequences which act like normal parenthesis chars.
                   7041: \let\lparen = ( \let\rparen = )
                   7042: 
                   7043: % Be sure that we always have a definition for `(', etc.  For example,
                   7044: % if the fn name has parens in it, \boldbrax will not be in effect yet,
                   7045: % so TeX would otherwise complain about undefined control sequence.
                   7046: {
                   7047:   \activeparens
                   7048:   \global\let(=\lparen \global\let)=\rparen
                   7049:   \global\let[=\lbrack \global\let]=\rbrack
                   7050:   \global\let& = \&
                   7051: 
                   7052:   \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
                   7053:   \gdef\magicamp{\let&=\amprm}
                   7054: }
                   7055: 
                   7056: \newcount\parencount
                   7057: 
                   7058: % If we encounter &foo, then turn on ()-hacking afterwards
                   7059: \newif\ifampseen
                   7060: \def\amprm#1 {\ampseentrue{\bf\&#1 }}
                   7061: 
                   7062: \def\parenfont{%
                   7063:   \ifampseen
                   7064:     % At the first level, print parens in roman,
                   7065:     % otherwise use the default font.
                   7066:     \ifnum \parencount=1 \rm \fi
                   7067:   \else
                   7068:     % The \sf parens (in \boldbrax) actually are a little bolder than
                   7069:     % the contained text.  This is especially needed for [ and ] .
                   7070:     \sf
                   7071:   \fi
                   7072: }
                   7073: \def\infirstlevel#1{%
                   7074:   \ifampseen
                   7075:     \ifnum\parencount=1
                   7076:       #1%
                   7077:     \fi
                   7078:   \fi
                   7079: }
                   7080: \def\bfafterword#1 {#1 \bf}
                   7081: 
                   7082: \def\opnr{%
                   7083:   \global\advance\parencount by 1
                   7084:   {\parenfont(}%
                   7085:   \infirstlevel \bfafterword
                   7086: }
                   7087: \def\clnr{%
                   7088:   {\parenfont)}%
                   7089:   \infirstlevel \sl
                   7090:   \global\advance\parencount by -1
                   7091: }
                   7092: 
                   7093: \newcount\brackcount
                   7094: \def\lbrb{%
                   7095:   \global\advance\brackcount by 1
                   7096:   {\bf[}%
                   7097: }
                   7098: \def\rbrb{%
                   7099:   {\bf]}%
                   7100:   \global\advance\brackcount by -1
                   7101: }
                   7102: 
                   7103: \def\checkparencounts{%
                   7104:   \ifnum\parencount=0 \else \badparencount \fi
                   7105:   \ifnum\brackcount=0 \else \badbrackcount \fi
                   7106: }
                   7107: % these should not use \errmessage; the glibc manual, at least, actually
                   7108: % has such constructs (when documenting function pointers).
                   7109: \def\badparencount{%
                   7110:   \message{Warning: unbalanced parentheses in @def...}%
                   7111:   \global\parencount=0
                   7112: }
                   7113: \def\badbrackcount{%
                   7114:   \message{Warning: unbalanced square brackets in @def...}%
                   7115:   \global\brackcount=0
                   7116: }
                   7117: 
                   7118: 
                   7119: \message{macros,}
                   7120: % @macro.
                   7121: 
                   7122: % To do this right we need a feature of e-TeX, \scantokens,
                   7123: % which we arrange to emulate with a temporary file in ordinary TeX.
1.1.1.2   misho    7124: \ifx\eTeXversion\thisisundefined
1.1       misho    7125:   \newwrite\macscribble
                   7126:   \def\scantokens#1{%
                   7127:     \toks0={#1}%
                   7128:     \immediate\openout\macscribble=\jobname.tmp
                   7129:     \immediate\write\macscribble{\the\toks0}%
                   7130:     \immediate\closeout\macscribble
                   7131:     \input \jobname.tmp
                   7132:   }
                   7133: \fi
                   7134: 
1.1.1.2   misho    7135: \def\scanmacro#1{\begingroup
                   7136:   \newlinechar`\^^M
                   7137:   \let\xeatspaces\eatspaces
                   7138:   %
                   7139:   % Undo catcode changes of \startcontents and \doprintindex
                   7140:   % When called from @insertcopying or (short)caption, we need active
                   7141:   % backslash to get it printed correctly.  Previously, we had
                   7142:   % \catcode`\\=\other instead.  We'll see whether a problem appears
                   7143:   % with macro expansion.                              --kasal, 19aug04
                   7144:   \catcode`\@=0 \catcode`\\=\active \escapechar=`\@
                   7145:   %
                   7146:   % ... and for \example:
                   7147:   \spaceisspace
                   7148:   %
                   7149:   % The \empty here causes a following catcode 5 newline to be eaten as
                   7150:   % part of reading whitespace after a control sequence.  It does not
                   7151:   % eat a catcode 13 newline.  There's no good way to handle the two
                   7152:   % cases (untried: maybe e-TeX's \everyeof could help, though plain TeX
                   7153:   % would then have different behavior).  See the Macro Details node in
                   7154:   % the manual for the workaround we recommend for macros and
                   7155:   % line-oriented commands.
                   7156:   % 
                   7157:   \scantokens{#1\empty}%
                   7158: \endgroup}
1.1       misho    7159: 
                   7160: \def\scanexp#1{%
                   7161:   \edef\temp{\noexpand\scanmacro{#1}}%
                   7162:   \temp
                   7163: }
                   7164: 
                   7165: \newcount\paramno   % Count of parameters
                   7166: \newtoks\macname    % Macro name
                   7167: \newif\ifrecursive  % Is it recursive?
                   7168: 
                   7169: % List of all defined macros in the form
                   7170: %    \definedummyword\macro1\definedummyword\macro2...
                   7171: % Currently is also contains all @aliases; the list can be split
                   7172: % if there is a need.
                   7173: \def\macrolist{}
                   7174: 
                   7175: % Add the macro to \macrolist
                   7176: \def\addtomacrolist#1{\expandafter \addtomacrolistxxx \csname#1\endcsname}
                   7177: \def\addtomacrolistxxx#1{%
                   7178:      \toks0 = \expandafter{\macrolist\definedummyword#1}%
                   7179:      \xdef\macrolist{\the\toks0}%
                   7180: }
                   7181: 
                   7182: % Utility routines.
                   7183: % This does \let #1 = #2, with \csnames; that is,
                   7184: %   \let \csname#1\endcsname = \csname#2\endcsname
                   7185: % (except of course we have to play expansion games).
                   7186: %
                   7187: \def\cslet#1#2{%
                   7188:   \expandafter\let
                   7189:   \csname#1\expandafter\endcsname
                   7190:   \csname#2\endcsname
                   7191: }
                   7192: 
                   7193: % Trim leading and trailing spaces off a string.
                   7194: % Concepts from aro-bend problem 15 (see CTAN).
                   7195: {\catcode`\@=11
                   7196: \gdef\eatspaces #1{\expandafter\trim@\expandafter{#1 }}
                   7197: \gdef\trim@ #1{\trim@@ @#1 @ #1 @ @@}
                   7198: \gdef\trim@@ #1@ #2@ #3@@{\trim@@@\empty #2 @}
                   7199: \def\unbrace#1{#1}
                   7200: \unbrace{\gdef\trim@@@ #1 } #2@{#1}
                   7201: }
                   7202: 
                   7203: % Trim a single trailing ^^M off a string.
                   7204: {\catcode`\^^M=\other \catcode`\Q=3%
                   7205: \gdef\eatcr #1{\eatcra #1Q^^MQ}%
                   7206: \gdef\eatcra#1^^MQ{\eatcrb#1Q}%
                   7207: \gdef\eatcrb#1Q#2Q{#1}%
                   7208: }
                   7209: 
                   7210: % Macro bodies are absorbed as an argument in a context where
                   7211: % all characters are catcode 10, 11 or 12, except \ which is active
1.1.1.2   misho    7212: % (as in normal texinfo). It is necessary to change the definition of \
                   7213: % to recognize macro arguments; this is the job of \mbodybackslash.
                   7214: %
1.1       misho    7215: % Non-ASCII encodings make 8-bit characters active, so un-activate
                   7216: % them to avoid their expansion.  Must do this non-globally, to
                   7217: % confine the change to the current group.
1.1.1.2   misho    7218: %
1.1       misho    7219: % It's necessary to have hard CRs when the macro is executed. This is
1.1.1.2   misho    7220: % done by making ^^M (\endlinechar) catcode 12 when reading the macro
1.1       misho    7221: % body, and then making it the \newlinechar in \scanmacro.
1.1.1.2   misho    7222: %
                   7223: \def\scanctxt{% used as subroutine
1.1       misho    7224:   \catcode`\"=\other
                   7225:   \catcode`\+=\other
                   7226:   \catcode`\<=\other
                   7227:   \catcode`\>=\other
                   7228:   \catcode`\@=\other
                   7229:   \catcode`\^=\other
                   7230:   \catcode`\_=\other
                   7231:   \catcode`\|=\other
                   7232:   \catcode`\~=\other
                   7233:   \ifx\declaredencoding\ascii \else \setnonasciicharscatcodenonglobal\other \fi
                   7234: }
                   7235: 
1.1.1.2   misho    7236: \def\scanargctxt{% used for copying and captions, not macros.
1.1       misho    7237:   \scanctxt
                   7238:   \catcode`\\=\other
                   7239:   \catcode`\^^M=\other
                   7240: }
                   7241: 
1.1.1.2   misho    7242: \def\macrobodyctxt{% used for @macro definitions
1.1       misho    7243:   \scanctxt
                   7244:   \catcode`\{=\other
                   7245:   \catcode`\}=\other
                   7246:   \catcode`\^^M=\other
                   7247:   \usembodybackslash
                   7248: }
                   7249: 
1.1.1.2   misho    7250: \def\macroargctxt{% used when scanning invocations
1.1       misho    7251:   \scanctxt
1.1.1.2   misho    7252:   \catcode`\\=0
1.1       misho    7253: }
1.1.1.2   misho    7254: % why catcode 0 for \ in the above?  To recognize \\ \{ \} as "escapes"
                   7255: % for the single characters \ { }.  Thus, we end up with the "commands"
                   7256: % that would be written @\ @{ @} in a Texinfo document.
                   7257: % 
                   7258: % We already have @{ and @}.  For @\, we define it here, and only for
                   7259: % this purpose, to produce a typewriter backslash (so, the @\ that we
                   7260: % define for @math can't be used with @macro calls):
                   7261: %
                   7262: \def\\{\normalbackslash}%
                   7263: % 
                   7264: % We would like to do this for \, too, since that is what makeinfo does.
                   7265: % But it is not possible, because Texinfo already has a command @, for a
                   7266: % cedilla accent.  Documents must use @comma{} instead.
                   7267: %
                   7268: % \anythingelse will almost certainly be an error of some kind.
                   7269: 
1.1       misho    7270: 
                   7271: % \mbodybackslash is the definition of \ in @macro bodies.
                   7272: % It maps \foo\ => \csname macarg.foo\endcsname => #N
                   7273: % where N is the macro parameter number.
                   7274: % We define \csname macarg.\endcsname to be \realbackslash, so
                   7275: % \\ in macro replacement text gets you a backslash.
1.1.1.2   misho    7276: %
1.1       misho    7277: {\catcode`@=0 @catcode`@\=@active
                   7278:  @gdef@usembodybackslash{@let\=@mbodybackslash}
                   7279:  @gdef@mbodybackslash#1\{@csname macarg.#1@endcsname}
                   7280: }
                   7281: \expandafter\def\csname macarg.\endcsname{\realbackslash}
                   7282: 
1.1.1.2   misho    7283: \def\margbackslash#1{\char`\#1 }
                   7284: 
1.1       misho    7285: \def\macro{\recursivefalse\parsearg\macroxxx}
                   7286: \def\rmacro{\recursivetrue\parsearg\macroxxx}
                   7287: 
                   7288: \def\macroxxx#1{%
1.1.1.2   misho    7289:   \getargs{#1}% now \macname is the macname and \argl the arglist
1.1       misho    7290:   \ifx\argl\empty       % no arguments
1.1.1.2   misho    7291:      \paramno=0\relax
1.1       misho    7292:   \else
                   7293:      \expandafter\parsemargdef \argl;%
1.1.1.2   misho    7294:      \if\paramno>256\relax
                   7295:        \ifx\eTeXversion\thisisundefined
                   7296:          \errhelp = \EMsimple
                   7297:          \errmessage{You need eTeX to compile a file with macros with more than 256 arguments}
                   7298:        \fi
                   7299:      \fi
1.1       misho    7300:   \fi
                   7301:   \if1\csname ismacro.\the\macname\endcsname
                   7302:      \message{Warning: redefining \the\macname}%
                   7303:   \else
                   7304:      \expandafter\ifx\csname \the\macname\endcsname \relax
                   7305:      \else \errmessage{Macro name \the\macname\space already defined}\fi
                   7306:      \global\cslet{macsave.\the\macname}{\the\macname}%
                   7307:      \global\expandafter\let\csname ismacro.\the\macname\endcsname=1%
                   7308:      \addtomacrolist{\the\macname}%
                   7309:   \fi
                   7310:   \begingroup \macrobodyctxt
                   7311:   \ifrecursive \expandafter\parsermacbody
                   7312:   \else \expandafter\parsemacbody
                   7313:   \fi}
                   7314: 
                   7315: \parseargdef\unmacro{%
                   7316:   \if1\csname ismacro.#1\endcsname
                   7317:     \global\cslet{#1}{macsave.#1}%
                   7318:     \global\expandafter\let \csname ismacro.#1\endcsname=0%
                   7319:     % Remove the macro name from \macrolist:
                   7320:     \begingroup
                   7321:       \expandafter\let\csname#1\endcsname \relax
                   7322:       \let\definedummyword\unmacrodo
                   7323:       \xdef\macrolist{\macrolist}%
                   7324:     \endgroup
                   7325:   \else
                   7326:     \errmessage{Macro #1 not defined}%
                   7327:   \fi
                   7328: }
                   7329: 
                   7330: % Called by \do from \dounmacro on each macro.  The idea is to omit any
                   7331: % macro definitions that have been changed to \relax.
                   7332: %
                   7333: \def\unmacrodo#1{%
                   7334:   \ifx #1\relax
                   7335:     % remove this
                   7336:   \else
                   7337:     \noexpand\definedummyword \noexpand#1%
                   7338:   \fi
                   7339: }
                   7340: 
                   7341: % This makes use of the obscure feature that if the last token of a
                   7342: % <parameter list> is #, then the preceding argument is delimited by
                   7343: % an opening brace, and that opening brace is not consumed.
                   7344: \def\getargs#1{\getargsxxx#1{}}
                   7345: \def\getargsxxx#1#{\getmacname #1 \relax\getmacargs}
1.1.1.2   misho    7346: \def\getmacname#1 #2\relax{\macname={#1}}
1.1       misho    7347: \def\getmacargs#1{\def\argl{#1}}
                   7348: 
1.1.1.2   misho    7349: % For macro processing make @ a letter so that we can make Texinfo private macro names.
                   7350: \edef\texiatcatcode{\the\catcode`\@}
                   7351: \catcode `@=11\relax
                   7352: 
1.1       misho    7353: % Parse the optional {params} list.  Set up \paramno and \paramlist
1.1.1.2   misho    7354: % so \defmacro knows what to do.  Define \macarg.BLAH for each BLAH
                   7355: % in the params list to some hook where the argument si to be expanded.  If
                   7356: % there are less than 10 arguments that hook is to be replaced by ##N where N
                   7357: % is the position in that list, that is to say the macro arguments are to be
                   7358: % defined `a la TeX in the macro body.  
                   7359: %
1.1       misho    7360: % That gets used by \mbodybackslash (above).
1.1.1.2   misho    7361: %
1.1       misho    7362: % We need to get `macro parameter char #' into several definitions.
1.1.1.2   misho    7363: % The technique used is stolen from LaTeX: let \hash be something
1.1       misho    7364: % unexpandable, insert that wherever you need a #, and then redefine
                   7365: % it to # just before using the token list produced.
                   7366: %
                   7367: % The same technique is used to protect \eatspaces till just before
                   7368: % the macro is used.
1.1.1.2   misho    7369: %
                   7370: % If there are 10 or more arguments, a different technique is used, where the
                   7371: % hook remains in the body, and when macro is to be expanded the body is
                   7372: % processed again to replace the arguments.
                   7373: %
                   7374: % In that case, the hook is \the\toks N-1, and we simply set \toks N-1 to the
                   7375: % argument N value and then \edef  the body (nothing else will expand because of
                   7376: % the catcode regime underwhich the body was input).
                   7377: %
                   7378: % If you compile with TeX (not eTeX), and you have macros with 10 or more
                   7379: % arguments, you need that no macro has more than 256 arguments, otherwise an
                   7380: % error is produced.
                   7381: \def\parsemargdef#1;{%
                   7382:   \paramno=0\def\paramlist{}%
                   7383:   \let\hash\relax
                   7384:   \let\xeatspaces\relax
                   7385:   \parsemargdefxxx#1,;,%
                   7386:   % In case that there are 10 or more arguments we parse again the arguments
                   7387:   % list to set new definitions for the \macarg.BLAH macros corresponding to
                   7388:   % each BLAH argument. It was anyhow needed to parse already once this list
                   7389:   % in order to count the arguments, and as macros with at most 9 arguments
                   7390:   % are by far more frequent than macro with 10 or more arguments, defining
                   7391:   % twice the \macarg.BLAH macros does not cost too much processing power.
                   7392:   \ifnum\paramno<10\relax\else
                   7393:     \paramno0\relax
                   7394:     \parsemmanyargdef@@#1,;,% 10 or more arguments
                   7395:   \fi
                   7396: }
1.1       misho    7397: \def\parsemargdefxxx#1,{%
                   7398:   \if#1;\let\next=\relax
                   7399:   \else \let\next=\parsemargdefxxx
1.1.1.2   misho    7400:     \advance\paramno by 1
1.1       misho    7401:     \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname
                   7402:         {\xeatspaces{\hash\the\paramno}}%
                   7403:     \edef\paramlist{\paramlist\hash\the\paramno,}%
                   7404:   \fi\next}
                   7405: 
1.1.1.2   misho    7406: \def\parsemmanyargdef@@#1,{%
                   7407:   \if#1;\let\next=\relax
                   7408:   \else 
                   7409:     \let\next=\parsemmanyargdef@@
                   7410:     \edef\tempb{\eatspaces{#1}}%
                   7411:     \expandafter\def\expandafter\tempa
                   7412:        \expandafter{\csname macarg.\tempb\endcsname}%
                   7413:     % Note that we need some extra \noexpand\noexpand, this is because we
                   7414:     % don't want \the  to be expanded in the \parsermacbody  as it uses an
                   7415:     % \xdef .
                   7416:     \expandafter\edef\tempa
                   7417:       {\noexpand\noexpand\noexpand\the\toks\the\paramno}%
                   7418:     \advance\paramno by 1\relax
                   7419:   \fi\next}
                   7420: 
1.1       misho    7421: % These two commands read recursive and nonrecursive macro bodies.
                   7422: % (They're different since rec and nonrec macros end differently.)
1.1.1.2   misho    7423: %
1.1       misho    7424: 
1.1.1.2   misho    7425: \catcode `\@\texiatcatcode
1.1       misho    7426: \long\def\parsemacbody#1@end macro%
                   7427: {\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
                   7428: \long\def\parsermacbody#1@end rmacro%
                   7429: {\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
1.1.1.2   misho    7430: \catcode `\@=11\relax
                   7431: 
                   7432: \let\endargs@\relax
                   7433: \let\nil@\relax
                   7434: \def\nilm@{\nil@}%
                   7435: \long\def\nillm@{\nil@}%
                   7436: 
                   7437: % This macro is expanded during the Texinfo macro expansion, not during its
                   7438: % definition.  It gets all the arguments values and assigns them to macros
                   7439: % macarg.ARGNAME
                   7440: %
                   7441: % #1 is the macro name
                   7442: % #2 is the list of argument names
                   7443: % #3 is the list of argument values
                   7444: \def\getargvals@#1#2#3{%
                   7445:   \def\macargdeflist@{}%
                   7446:   \def\saveparamlist@{#2}% Need to keep a copy for parameter expansion.
                   7447:   \def\paramlist{#2,\nil@}%
                   7448:   \def\macroname{#1}%
                   7449:   \begingroup
                   7450:   \macroargctxt
                   7451:   \def\argvaluelist{#3,\nil@}%
                   7452:   \def\@tempa{#3}%
                   7453:   \ifx\@tempa\empty
                   7454:     \setemptyargvalues@
                   7455:   \else
                   7456:     \getargvals@@
                   7457:   \fi
                   7458: }
1.1       misho    7459: 
1.1.1.2   misho    7460: % 
                   7461: \def\getargvals@@{%
                   7462:   \ifx\paramlist\nilm@
                   7463:       % Some sanity check needed here that \argvaluelist is also empty.
                   7464:       \ifx\argvaluelist\nillm@
                   7465:       \else
                   7466:         \errhelp = \EMsimple
                   7467:         \errmessage{Too many arguments in macro `\macroname'!}%
                   7468:       \fi
                   7469:       \let\next\macargexpandinbody@
                   7470:   \else
                   7471:     \ifx\argvaluelist\nillm@
                   7472:        % No more arguments values passed to macro.  Set remaining named-arg
                   7473:        % macros to empty.
                   7474:        \let\next\setemptyargvalues@
                   7475:     \else
                   7476:       % pop current arg name into \@tempb
                   7477:       \def\@tempa##1{\pop@{\@tempb}{\paramlist}##1\endargs@}%
                   7478:       \expandafter\@tempa\expandafter{\paramlist}%
                   7479:        % pop current argument value into \@tempc
                   7480:       \def\@tempa##1{\longpop@{\@tempc}{\argvaluelist}##1\endargs@}%
                   7481:       \expandafter\@tempa\expandafter{\argvaluelist}%
                   7482:        % Here \@tempb is the current arg name and \@tempc is the current arg value.
                   7483:        % First place the new argument macro definition into \@tempd
                   7484:        \expandafter\macname\expandafter{\@tempc}%
                   7485:        \expandafter\let\csname macarg.\@tempb\endcsname\relax
                   7486:        \expandafter\def\expandafter\@tempe\expandafter{%
                   7487:          \csname macarg.\@tempb\endcsname}%
                   7488:        \edef\@tempd{\long\def\@tempe{\the\macname}}%
                   7489:        \push@\@tempd\macargdeflist@
                   7490:        \let\next\getargvals@@
                   7491:     \fi
                   7492:   \fi
                   7493:   \next
                   7494: }
                   7495: 
                   7496: \def\push@#1#2{%
                   7497:   \expandafter\expandafter\expandafter\def
                   7498:   \expandafter\expandafter\expandafter#2%
                   7499:   \expandafter\expandafter\expandafter{%
                   7500:   \expandafter#1#2}%
                   7501: }
                   7502: 
                   7503: % Replace arguments by their values in the macro body, and place the result
                   7504: % in macro \@tempa
                   7505: \def\macvalstoargs@{%
                   7506:   %  To do this we use the property that token registers that are \the'ed
                   7507:   % within an \edef  expand only once. So we are going to place all argument
                   7508:   % values into respective token registers.
                   7509:   %
                   7510:   % First we save the token context, and initialize argument numbering.
                   7511:   \begingroup
                   7512:     \paramno0\relax
                   7513:     % Then, for each argument number #N, we place the corresponding argument
                   7514:     % value into a new token list register \toks#N
                   7515:     \expandafter\putargsintokens@\saveparamlist@,;,%
                   7516:     % Then, we expand the body so that argument are replaced by their
                   7517:     % values. The trick for values not to be expanded themselves is that they
                   7518:     % are within tokens and that tokens expand only once in an \edef .
                   7519:     \edef\@tempc{\csname mac.\macroname .body\endcsname}%
                   7520:     % Now we restore the token stack pointer to free the token list registers
                   7521:     % which we have used, but we make sure that expanded body is saved after
                   7522:     % group.
                   7523:     \expandafter
                   7524:   \endgroup
                   7525:   \expandafter\def\expandafter\@tempa\expandafter{\@tempc}%
                   7526:   }
                   7527: 
                   7528: \def\macargexpandinbody@{% 
                   7529:   %% Define the named-macro outside of this group and then close this group. 
                   7530:   \expandafter
                   7531:   \endgroup
                   7532:   \macargdeflist@
                   7533:   % First the replace in body the macro arguments by their values, the result
                   7534:   % is in \@tempa .
                   7535:   \macvalstoargs@
                   7536:   % Then we point at the \norecurse or \gobble (for recursive) macro value
                   7537:   % with \@tempb .
                   7538:   \expandafter\let\expandafter\@tempb\csname mac.\macroname .recurse\endcsname
                   7539:   % Depending on whether it is recursive or not, we need some tailing
                   7540:   % \egroup .
                   7541:   \ifx\@tempb\gobble
                   7542:      \let\@tempc\relax
                   7543:   \else
                   7544:      \let\@tempc\egroup
                   7545:   \fi
                   7546:   % And now we do the real job:
                   7547:   \edef\@tempd{\noexpand\@tempb{\macroname}\noexpand\scanmacro{\@tempa}\@tempc}%
                   7548:   \@tempd
                   7549: }
                   7550: 
                   7551: \def\putargsintokens@#1,{%
                   7552:   \if#1;\let\next\relax
                   7553:   \else
                   7554:     \let\next\putargsintokens@
                   7555:     % First we allocate the new token list register, and give it a temporary
                   7556:     % alias \@tempb .
                   7557:     \toksdef\@tempb\the\paramno
                   7558:     % Then we place the argument value into that token list register.
                   7559:     \expandafter\let\expandafter\@tempa\csname macarg.#1\endcsname
                   7560:     \expandafter\@tempb\expandafter{\@tempa}%
                   7561:     \advance\paramno by 1\relax
                   7562:   \fi
                   7563:   \next
                   7564: }
                   7565: 
                   7566: % Save the token stack pointer into macro #1
                   7567: \def\texisavetoksstackpoint#1{\edef#1{\the\@cclvi}}
                   7568: % Restore the token stack pointer from number in macro #1
                   7569: \def\texirestoretoksstackpoint#1{\expandafter\mathchardef\expandafter\@cclvi#1\relax}
                   7570: % newtoks that can be used non \outer .
                   7571: \def\texinonouternewtoks{\alloc@ 5\toks \toksdef \@cclvi}
                   7572: 
                   7573: % Tailing missing arguments are set to empty
                   7574: \def\setemptyargvalues@{%
                   7575:   \ifx\paramlist\nilm@
                   7576:     \let\next\macargexpandinbody@
                   7577:   \else
                   7578:     \expandafter\setemptyargvaluesparser@\paramlist\endargs@
                   7579:     \let\next\setemptyargvalues@
                   7580:   \fi
                   7581:   \next
                   7582: }
                   7583: 
                   7584: \def\setemptyargvaluesparser@#1,#2\endargs@{%
                   7585:   \expandafter\def\expandafter\@tempa\expandafter{%
                   7586:     \expandafter\def\csname macarg.#1\endcsname{}}%
                   7587:   \push@\@tempa\macargdeflist@
                   7588:   \def\paramlist{#2}%
                   7589: }
                   7590: 
                   7591: % #1 is the element target macro
                   7592: % #2 is the list macro
                   7593: % #3,#4\endargs@ is the list value
                   7594: \def\pop@#1#2#3,#4\endargs@{%
                   7595:    \def#1{#3}%
                   7596:    \def#2{#4}%
                   7597: }
                   7598: \long\def\longpop@#1#2#3,#4\endargs@{%
                   7599:    \long\def#1{#3}%
                   7600:    \long\def#2{#4}%
                   7601: }
                   7602: 
                   7603: % This defines a Texinfo @macro. There are eight cases: recursive and
                   7604: % nonrecursive macros of zero, one, up to nine, and many arguments.
1.1       misho    7605: % Much magic with \expandafter here.
                   7606: % \xdef is used so that macro definitions will survive the file
                   7607: % they're defined in; @include reads the file inside a group.
1.1.1.2   misho    7608: %
1.1       misho    7609: \def\defmacro{%
                   7610:   \let\hash=##% convert placeholders to macro parameter chars
                   7611:   \ifrecursive
                   7612:     \ifcase\paramno
                   7613:     % 0
                   7614:       \expandafter\xdef\csname\the\macname\endcsname{%
                   7615:         \noexpand\scanmacro{\temp}}%
                   7616:     \or % 1
                   7617:       \expandafter\xdef\csname\the\macname\endcsname{%
                   7618:          \bgroup\noexpand\macroargctxt
                   7619:          \noexpand\braceorline
                   7620:          \expandafter\noexpand\csname\the\macname xxx\endcsname}%
                   7621:       \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
                   7622:          \egroup\noexpand\scanmacro{\temp}}%
1.1.1.2   misho    7623:     \else
                   7624:       \ifnum\paramno<10\relax % at most 9
                   7625:         \expandafter\xdef\csname\the\macname\endcsname{%
                   7626:            \bgroup\noexpand\macroargctxt
                   7627:            \noexpand\csname\the\macname xx\endcsname}%
                   7628:         \expandafter\xdef\csname\the\macname xx\endcsname##1{%
                   7629:             \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
                   7630:         \expandafter\expandafter
                   7631:         \expandafter\xdef
                   7632:         \expandafter\expandafter
                   7633:           \csname\the\macname xxx\endcsname
                   7634:             \paramlist{\egroup\noexpand\scanmacro{\temp}}%
                   7635:       \else % 10 or more
                   7636:         \expandafter\xdef\csname\the\macname\endcsname{%
                   7637:           \noexpand\getargvals@{\the\macname}{\argl}%
                   7638:         }%    
                   7639:         \global\expandafter\let\csname mac.\the\macname .body\endcsname\temp
                   7640:         \global\expandafter\let\csname mac.\the\macname .recurse\endcsname\gobble
                   7641:       \fi
1.1       misho    7642:     \fi
                   7643:   \else
                   7644:     \ifcase\paramno
                   7645:     % 0
                   7646:       \expandafter\xdef\csname\the\macname\endcsname{%
                   7647:         \noexpand\norecurse{\the\macname}%
                   7648:         \noexpand\scanmacro{\temp}\egroup}%
                   7649:     \or % 1
                   7650:       \expandafter\xdef\csname\the\macname\endcsname{%
                   7651:          \bgroup\noexpand\macroargctxt
                   7652:          \noexpand\braceorline
                   7653:          \expandafter\noexpand\csname\the\macname xxx\endcsname}%
                   7654:       \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
                   7655:         \egroup
                   7656:         \noexpand\norecurse{\the\macname}%
                   7657:         \noexpand\scanmacro{\temp}\egroup}%
1.1.1.2   misho    7658:     \else % at most 9
                   7659:       \ifnum\paramno<10\relax
                   7660:         \expandafter\xdef\csname\the\macname\endcsname{%
                   7661:            \bgroup\noexpand\macroargctxt
                   7662:            \expandafter\noexpand\csname\the\macname xx\endcsname}%
                   7663:         \expandafter\xdef\csname\the\macname xx\endcsname##1{%
                   7664:             \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
                   7665:         \expandafter\expandafter
                   7666:         \expandafter\xdef
                   7667:         \expandafter\expandafter
                   7668:         \csname\the\macname xxx\endcsname
                   7669:         \paramlist{%
                   7670:             \egroup
                   7671:             \noexpand\norecurse{\the\macname}%
                   7672:             \noexpand\scanmacro{\temp}\egroup}%
                   7673:       \else % 10 or more:
                   7674:         \expandafter\xdef\csname\the\macname\endcsname{%
                   7675:           \noexpand\getargvals@{\the\macname}{\argl}%
                   7676:         }%
                   7677:         \global\expandafter\let\csname mac.\the\macname .body\endcsname\temp
                   7678:         \global\expandafter\let\csname mac.\the\macname .recurse\endcsname\norecurse
                   7679:       \fi
1.1       misho    7680:     \fi
                   7681:   \fi}
                   7682: 
1.1.1.2   misho    7683: \catcode `\@\texiatcatcode\relax
                   7684: 
1.1       misho    7685: \def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}}
                   7686: 
                   7687: % \braceorline decides whether the next nonwhitespace character is a
                   7688: % {.  If so it reads up to the closing }, if not, it reads the whole
                   7689: % line.  Whatever was read is then fed to the next control sequence
1.1.1.2   misho    7690: % as an argument (by \parsebrace or \parsearg).
                   7691: % 
1.1       misho    7692: \def\braceorline#1{\let\macnamexxx=#1\futurelet\nchar\braceorlinexxx}
                   7693: \def\braceorlinexxx{%
                   7694:   \ifx\nchar\bgroup\else
                   7695:     \expandafter\parsearg
                   7696:   \fi \macnamexxx}
                   7697: 
                   7698: 
                   7699: % @alias.
                   7700: % We need some trickery to remove the optional spaces around the equal
1.1.1.2   misho    7701: % sign.  Make them active and then expand them all to nothing.
                   7702: %
1.1       misho    7703: \def\alias{\parseargusing\obeyspaces\aliasxxx}
                   7704: \def\aliasxxx #1{\aliasyyy#1\relax}
                   7705: \def\aliasyyy #1=#2\relax{%
                   7706:   {%
                   7707:     \expandafter\let\obeyedspace=\empty
                   7708:     \addtomacrolist{#1}%
                   7709:     \xdef\next{\global\let\makecsname{#1}=\makecsname{#2}}%
                   7710:   }%
                   7711:   \next
                   7712: }
                   7713: 
                   7714: 
                   7715: \message{cross references,}
                   7716: 
                   7717: \newwrite\auxfile
                   7718: \newif\ifhavexrefs    % True if xref values are known.
                   7719: \newif\ifwarnedxrefs  % True if we warned once that they aren't known.
                   7720: 
                   7721: % @inforef is relatively simple.
                   7722: \def\inforef #1{\inforefzzz #1,,,,**}
1.1.1.2   misho    7723: \def\inforefzzz #1,#2,#3,#4**{%
                   7724:   \putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}},
1.1       misho    7725:   node \samp{\ignorespaces#1{}}}
                   7726: 
                   7727: % @node's only job in TeX is to define \lastnode, which is used in
                   7728: % cross-references.  The @node line might or might not have commas, and
                   7729: % might or might not have spaces before the first comma, like:
                   7730: % @node foo , bar , ...
                   7731: % We don't want such trailing spaces in the node name.
                   7732: %
                   7733: \parseargdef\node{\checkenv{}\donode #1 ,\finishnodeparse}
                   7734: %
                   7735: % also remove a trailing comma, in case of something like this:
                   7736: % @node Help-Cross,  ,  , Cross-refs
                   7737: \def\donode#1 ,#2\finishnodeparse{\dodonode #1,\finishnodeparse}
                   7738: \def\dodonode#1,#2\finishnodeparse{\gdef\lastnode{#1}}
                   7739: 
                   7740: \let\nwnode=\node
                   7741: \let\lastnode=\empty
                   7742: 
                   7743: % Write a cross-reference definition for the current node.  #1 is the
                   7744: % type (Ynumbered, Yappendix, Ynothing).
                   7745: %
                   7746: \def\donoderef#1{%
                   7747:   \ifx\lastnode\empty\else
                   7748:     \setref{\lastnode}{#1}%
                   7749:     \global\let\lastnode=\empty
                   7750:   \fi
                   7751: }
                   7752: 
                   7753: % @anchor{NAME} -- define xref target at arbitrary point.
                   7754: %
                   7755: \newcount\savesfregister
                   7756: %
                   7757: \def\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi}
                   7758: \def\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi}
                   7759: \def\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces}
                   7760: 
                   7761: % \setref{NAME}{SNT} defines a cross-reference point NAME (a node or an
                   7762: % anchor), which consists of three parts:
                   7763: % 1) NAME-title - the current sectioning name taken from \lastsection,
                   7764: %                 or the anchor name.
                   7765: % 2) NAME-snt   - section number and type, passed as the SNT arg, or
                   7766: %                 empty for anchors.
                   7767: % 3) NAME-pg    - the page number.
                   7768: %
                   7769: % This is called from \donoderef, \anchor, and \dofloat.  In the case of
                   7770: % floats, there is an additional part, which is not written here:
                   7771: % 4) NAME-lof   - the text as it should appear in a @listoffloats.
                   7772: %
                   7773: \def\setref#1#2{%
                   7774:   \pdfmkdest{#1}%
                   7775:   \iflinks
                   7776:     {%
                   7777:       \atdummies  % preserve commands, but don't expand them
                   7778:       \edef\writexrdef##1##2{%
                   7779:        \write\auxfile{@xrdef{#1-% #1 of \setref, expanded by the \edef
                   7780:          ##1}{##2}}% these are parameters of \writexrdef
                   7781:       }%
                   7782:       \toks0 = \expandafter{\lastsection}%
                   7783:       \immediate \writexrdef{title}{\the\toks0 }%
                   7784:       \immediate \writexrdef{snt}{\csname #2\endcsname}% \Ynumbered etc.
1.1.1.2   misho    7785:       \safewhatsit{\writexrdef{pg}{\folio}}% will be written later, at \shipout
1.1       misho    7786:     }%
                   7787:   \fi
                   7788: }
                   7789: 
1.1.1.2   misho    7790: % @xrefautosectiontitle on|off says whether @section(ing) names are used
                   7791: % automatically in xrefs, if the third arg is not explicitly specified.
                   7792: % This was provided as a "secret" @set xref-automatic-section-title
                   7793: % variable, now it's official.
                   7794: % 
                   7795: \parseargdef\xrefautomaticsectiontitle{%
                   7796:   \def\temp{#1}%
                   7797:   \ifx\temp\onword
                   7798:     \expandafter\let\csname SETxref-automatic-section-title\endcsname
                   7799:       = \empty
                   7800:   \else\ifx\temp\offword
                   7801:     \expandafter\let\csname SETxref-automatic-section-title\endcsname
                   7802:       = \relax
                   7803:   \else
                   7804:     \errhelp = \EMsimple
                   7805:     \errmessage{Unknown @xrefautomaticsectiontitle value `\temp',
                   7806:                 must be on|off}%
                   7807:   \fi\fi
                   7808: }
                   7809: 
                   7810: 
1.1       misho    7811: % @xref, @pxref, and @ref generate cross-references.  For \xrefX, #1 is
                   7812: % the node name, #2 the name of the Info cross-reference, #3 the printed
                   7813: % node name, #4 the name of the Info file, #5 the name of the printed
                   7814: % manual.  All but the node name can be omitted.
                   7815: %
                   7816: \def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]}
                   7817: \def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
                   7818: \def\ref#1{\xrefX[#1,,,,,,,]}
1.1.1.3 ! misho    7819: %
        !          7820: \newbox\topbox
        !          7821: \newbox\printedrefnamebox
        !          7822: \newbox\printedmanualbox
        !          7823: %
1.1       misho    7824: \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
                   7825:   \unsepspaces
1.1.1.3 ! misho    7826:   %
1.1       misho    7827:   \def\printedrefname{\ignorespaces #3}%
1.1.1.3 ! misho    7828:   \setbox\printedrefnamebox = \hbox{\printedrefname\unskip}%
        !          7829:   %
        !          7830:   \def\printedmanual{\ignorespaces #5}%
        !          7831:   \setbox\printedmanualbox  = \hbox{\printedmanual\unskip}%
        !          7832:   %
        !          7833:   % If the printed reference name (arg #3) was not explicitly given in
        !          7834:   % the @xref, figure out what we want to use.
        !          7835:   \ifdim \wd\printedrefnamebox = 0pt
1.1       misho    7836:     % No printed node name was explicitly given.
1.1.1.2   misho    7837:     \expandafter\ifx\csname SETxref-automatic-section-title\endcsname \relax
1.1.1.3 ! misho    7838:       % Not auto section-title: use node name inside the square brackets.
1.1       misho    7839:       \def\printedrefname{\ignorespaces #1}%
                   7840:     \else
1.1.1.3 ! misho    7841:       % Auto section-title: use chapter/section title inside
        !          7842:       % the square brackets if we have it.
        !          7843:       \ifdim \wd\printedmanualbox > 0pt
        !          7844:         % It is in another manual, so we don't have it; use node name.
1.1       misho    7845:         \def\printedrefname{\ignorespaces #1}%
                   7846:       \else
                   7847:         \ifhavexrefs
1.1.1.3 ! misho    7848:           % We (should) know the real title if we have the xref values.
1.1       misho    7849:           \def\printedrefname{\refx{#1-title}{}}%
                   7850:         \else
                   7851:           % Otherwise just copy the Info node name.
                   7852:           \def\printedrefname{\ignorespaces #1}%
                   7853:         \fi%
                   7854:       \fi
                   7855:     \fi
                   7856:   \fi
                   7857:   %
                   7858:   % Make link in pdf output.
                   7859:   \ifpdf
                   7860:     {\indexnofonts
                   7861:      \turnoffactive
1.1.1.3 ! misho    7862:      \makevalueexpandable
1.1       misho    7863:      % This expands tokens, so do it after making catcode changes, so _
                   7864:      % etc. don't get their TeX definitions.
                   7865:      \getfilename{#4}%
                   7866:      %
1.1.1.3 ! misho    7867:      \edef\pdfxrefdest{#1}%
        !          7868:      \txiescapepdf\pdfxrefdest
1.1       misho    7869:      %
                   7870:      \leavevmode
                   7871:      \startlink attr{/Border [0 0 0]}%
                   7872:      \ifnum\filenamelength>0
                   7873:        goto file{\the\filename.pdf} name{\pdfxrefdest}%
                   7874:      \else
                   7875:        goto name{\pdfmkpgn{\pdfxrefdest}}%
                   7876:      \fi
                   7877:     }%
                   7878:     \setcolor{\linkcolor}%
                   7879:   \fi
                   7880:   %
                   7881:   % Float references are printed completely differently: "Figure 1.2"
                   7882:   % instead of "[somenode], p.3".  We distinguish them by the
                   7883:   % LABEL-title being set to a magic string.
                   7884:   {%
                   7885:     % Have to otherify everything special to allow the \csname to
                   7886:     % include an _ in the xref name, etc.
                   7887:     \indexnofonts
                   7888:     \turnoffactive
                   7889:     \expandafter\global\expandafter\let\expandafter\Xthisreftitle
                   7890:       \csname XR#1-title\endcsname
                   7891:   }%
                   7892:   \iffloat\Xthisreftitle
                   7893:     % If the user specified the print name (third arg) to the ref,
                   7894:     % print it instead of our usual "Figure 1.2".
1.1.1.3 ! misho    7895:     \ifdim\wd\printedrefnamebox = 0pt
1.1       misho    7896:       \refx{#1-snt}{}%
                   7897:     \else
                   7898:       \printedrefname
                   7899:     \fi
                   7900:     %
                   7901:     % if the user also gave the printed manual name (fifth arg), append
                   7902:     % "in MANUALNAME".
1.1.1.3 ! misho    7903:     \ifdim \wd\printedmanualbox > 0pt
1.1       misho    7904:       \space \putwordin{} \cite{\printedmanual}%
                   7905:     \fi
                   7906:   \else
                   7907:     % node/anchor (non-float) references.
1.1.1.3 ! misho    7908:     % 
        !          7909:     % If we use \unhbox to print the node names, TeX does not insert
        !          7910:     % empty discretionaries after hyphens, which means that it will not
        !          7911:     % find a line break at a hyphen in a node names.  Since some manuals
        !          7912:     % are best written with fairly long node names, containing hyphens,
        !          7913:     % this is a loss.  Therefore, we give the text of the node name
        !          7914:     % again, so it is as if TeX is seeing it for the first time.
        !          7915:     % 
        !          7916:     % Cross-manual reference.  Only include the "Section ``foo'' in" if
        !          7917:     % the foo is neither missing or Top.  Thus, @xref{,,,foo,The Foo Manual}
        !          7918:     % outputs simply "see The Foo Manual".
        !          7919:     \ifdim \wd\printedmanualbox > 0pt
        !          7920:       % What is the 7sp about?  The idea is that we also want to omit
        !          7921:       % the Section part if we would be printing "Top", since they are
        !          7922:       % clearly trying to refer to the whole manual.  But, this being
        !          7923:       % TeX, we can't easily compare strings while ignoring the possible
        !          7924:       % spaces before and after in the input.  By adding the arbitrary
        !          7925:       % 7sp, we make it much less likely that a real node name would
        !          7926:       % happen to have the same width as "Top" (e.g., in a monospaced font).
        !          7927:       % I hope it will never happen in practice.
        !          7928:       % 
        !          7929:       % For the same basic reason, we retypeset the "Top" at every
        !          7930:       % reference, since the current font is indeterminate.
        !          7931:       % 
        !          7932:       \setbox\topbox = \hbox{Top\kern7sp}%
        !          7933:       \setbox2 = \hbox{\ignorespaces \printedrefname \unskip \kern7sp}%
        !          7934:       \ifdim \wd2 > 7sp
        !          7935:         \ifdim \wd2 = \wd\topbox \else
        !          7936:           \putwordSection{} ``\printedrefname'' \putwordin{}\space
        !          7937:         \fi
        !          7938:       \fi
        !          7939:       \cite{\printedmanual}%
1.1       misho    7940:     \else
1.1.1.3 ! misho    7941:       % Reference in this manual.
        !          7942:       %
1.1       misho    7943:       % _ (for example) has to be the character _ for the purposes of the
                   7944:       % control sequence corresponding to the node, but it has to expand
                   7945:       % into the usual \leavevmode...\vrule stuff for purposes of
                   7946:       % printing. So we \turnoffactive for the \refx-snt, back on for the
                   7947:       % printing, back off for the \refx-pg.
                   7948:       {\turnoffactive
                   7949:        % Only output a following space if the -snt ref is nonempty; for
                   7950:        % @unnumbered and @anchor, it won't be.
                   7951:        \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}%
                   7952:        \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi
                   7953:       }%
1.1.1.3 ! misho    7954:       % output the `[mynode]' via the macro below so it can be overridden.
1.1       misho    7955:       \xrefprintnodename\printedrefname
                   7956:       %
                   7957:       % But we always want a comma and a space:
                   7958:       ,\space
                   7959:       %
                   7960:       % output the `page 3'.
                   7961:       \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
                   7962:     \fi
                   7963:   \fi
                   7964:   \endlink
                   7965: \endgroup}
                   7966: 
                   7967: % This macro is called from \xrefX for the `[nodename]' part of xref
                   7968: % output.  It's a separate macro only so it can be changed more easily,
                   7969: % since square brackets don't work well in some documents.  Particularly
                   7970: % one that Bob is working on :).
                   7971: %
                   7972: \def\xrefprintnodename#1{[#1]}
                   7973: 
                   7974: % Things referred to by \setref.
                   7975: %
                   7976: \def\Ynothing{}
                   7977: \def\Yomitfromtoc{}
                   7978: \def\Ynumbered{%
                   7979:   \ifnum\secno=0
                   7980:     \putwordChapter@tie \the\chapno
                   7981:   \else \ifnum\subsecno=0
                   7982:     \putwordSection@tie \the\chapno.\the\secno
                   7983:   \else \ifnum\subsubsecno=0
                   7984:     \putwordSection@tie \the\chapno.\the\secno.\the\subsecno
                   7985:   \else
                   7986:     \putwordSection@tie \the\chapno.\the\secno.\the\subsecno.\the\subsubsecno
                   7987:   \fi\fi\fi
                   7988: }
                   7989: \def\Yappendix{%
                   7990:   \ifnum\secno=0
                   7991:      \putwordAppendix@tie @char\the\appendixno{}%
                   7992:   \else \ifnum\subsecno=0
                   7993:      \putwordSection@tie @char\the\appendixno.\the\secno
                   7994:   \else \ifnum\subsubsecno=0
                   7995:     \putwordSection@tie @char\the\appendixno.\the\secno.\the\subsecno
                   7996:   \else
                   7997:     \putwordSection@tie
                   7998:       @char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno
                   7999:   \fi\fi\fi
                   8000: }
                   8001: 
                   8002: % Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME.
                   8003: % If its value is nonempty, SUFFIX is output afterward.
                   8004: %
                   8005: \def\refx#1#2{%
                   8006:   {%
                   8007:     \indexnofonts
                   8008:     \otherbackslash
                   8009:     \expandafter\global\expandafter\let\expandafter\thisrefX
                   8010:       \csname XR#1\endcsname
                   8011:   }%
                   8012:   \ifx\thisrefX\relax
                   8013:     % If not defined, say something at least.
                   8014:     \angleleft un\-de\-fined\angleright
                   8015:     \iflinks
                   8016:       \ifhavexrefs
1.1.1.2   misho    8017:         {\toks0 = {#1}% avoid expansion of possibly-complex value
                   8018:          \message{\linenumber Undefined cross reference `\the\toks0'.}}%
1.1       misho    8019:       \else
                   8020:         \ifwarnedxrefs\else
                   8021:           \global\warnedxrefstrue
                   8022:           \message{Cross reference values unknown; you must run TeX again.}%
                   8023:         \fi
                   8024:       \fi
                   8025:     \fi
                   8026:   \else
                   8027:     % It's defined, so just use it.
                   8028:     \thisrefX
                   8029:   \fi
                   8030:   #2% Output the suffix in any case.
                   8031: }
                   8032: 
                   8033: % This is the macro invoked by entries in the aux file.  Usually it's
                   8034: % just a \def (we prepend XR to the control sequence name to avoid
                   8035: % collisions).  But if this is a float type, we have more work to do.
                   8036: %
                   8037: \def\xrdef#1#2{%
                   8038:   {% The node name might contain 8-bit characters, which in our current
                   8039:    % implementation are changed to commands like @'e.  Don't let these
                   8040:    % mess up the control sequence name.
                   8041:     \indexnofonts
                   8042:     \turnoffactive
                   8043:     \xdef\safexrefname{#1}%
                   8044:   }%
                   8045:   %
                   8046:   \expandafter\gdef\csname XR\safexrefname\endcsname{#2}% remember this xref
                   8047:   %
                   8048:   % Was that xref control sequence that we just defined for a float?
                   8049:   \expandafter\iffloat\csname XR\safexrefname\endcsname
                   8050:     % it was a float, and we have the (safe) float type in \iffloattype.
                   8051:     \expandafter\let\expandafter\floatlist
                   8052:       \csname floatlist\iffloattype\endcsname
                   8053:     %
                   8054:     % Is this the first time we've seen this float type?
                   8055:     \expandafter\ifx\floatlist\relax
                   8056:       \toks0 = {\do}% yes, so just \do
                   8057:     \else
                   8058:       % had it before, so preserve previous elements in list.
                   8059:       \toks0 = \expandafter{\floatlist\do}%
                   8060:     \fi
                   8061:     %
                   8062:     % Remember this xref in the control sequence \floatlistFLOATTYPE,
                   8063:     % for later use in \listoffloats.
                   8064:     \expandafter\xdef\csname floatlist\iffloattype\endcsname{\the\toks0
                   8065:       {\safexrefname}}%
                   8066:   \fi
                   8067: }
                   8068: 
                   8069: % Read the last existing aux file, if any.  No error if none exists.
                   8070: %
                   8071: \def\tryauxfile{%
                   8072:   \openin 1 \jobname.aux
                   8073:   \ifeof 1 \else
                   8074:     \readdatafile{aux}%
                   8075:     \global\havexrefstrue
                   8076:   \fi
                   8077:   \closein 1
                   8078: }
                   8079: 
                   8080: \def\setupdatafile{%
                   8081:   \catcode`\^^@=\other
                   8082:   \catcode`\^^A=\other
                   8083:   \catcode`\^^B=\other
                   8084:   \catcode`\^^C=\other
                   8085:   \catcode`\^^D=\other
                   8086:   \catcode`\^^E=\other
                   8087:   \catcode`\^^F=\other
                   8088:   \catcode`\^^G=\other
                   8089:   \catcode`\^^H=\other
                   8090:   \catcode`\^^K=\other
                   8091:   \catcode`\^^L=\other
                   8092:   \catcode`\^^N=\other
                   8093:   \catcode`\^^P=\other
                   8094:   \catcode`\^^Q=\other
                   8095:   \catcode`\^^R=\other
                   8096:   \catcode`\^^S=\other
                   8097:   \catcode`\^^T=\other
                   8098:   \catcode`\^^U=\other
                   8099:   \catcode`\^^V=\other
                   8100:   \catcode`\^^W=\other
                   8101:   \catcode`\^^X=\other
                   8102:   \catcode`\^^Z=\other
                   8103:   \catcode`\^^[=\other
                   8104:   \catcode`\^^\=\other
                   8105:   \catcode`\^^]=\other
                   8106:   \catcode`\^^^=\other
                   8107:   \catcode`\^^_=\other
                   8108:   % It was suggested to set the catcode of ^ to 7, which would allow ^^e4 etc.
                   8109:   % in xref tags, i.e., node names.  But since ^^e4 notation isn't
                   8110:   % supported in the main text, it doesn't seem desirable.  Furthermore,
                   8111:   % that is not enough: for node names that actually contain a ^
                   8112:   % character, we would end up writing a line like this: 'xrdef {'hat
                   8113:   % b-title}{'hat b} and \xrdef does a \csname...\endcsname on the first
                   8114:   % argument, and \hat is not an expandable control sequence.  It could
                   8115:   % all be worked out, but why?  Either we support ^^ or we don't.
                   8116:   %
                   8117:   % The other change necessary for this was to define \auxhat:
                   8118:   % \def\auxhat{\def^{'hat }}% extra space so ok if followed by letter
                   8119:   % and then to call \auxhat in \setq.
                   8120:   %
                   8121:   \catcode`\^=\other
                   8122:   %
                   8123:   % Special characters.  Should be turned off anyway, but...
                   8124:   \catcode`\~=\other
                   8125:   \catcode`\[=\other
                   8126:   \catcode`\]=\other
                   8127:   \catcode`\"=\other
                   8128:   \catcode`\_=\other
                   8129:   \catcode`\|=\other
                   8130:   \catcode`\<=\other
                   8131:   \catcode`\>=\other
                   8132:   \catcode`\$=\other
                   8133:   \catcode`\#=\other
                   8134:   \catcode`\&=\other
                   8135:   \catcode`\%=\other
                   8136:   \catcode`+=\other % avoid \+ for paranoia even though we've turned it off
                   8137:   %
                   8138:   % This is to support \ in node names and titles, since the \
                   8139:   % characters end up in a \csname.  It's easier than
                   8140:   % leaving it active and making its active definition an actual \
                   8141:   % character.  What I don't understand is why it works in the *value*
                   8142:   % of the xrdef.  Seems like it should be a catcode12 \, and that
                   8143:   % should not typeset properly.  But it works, so I'm moving on for
                   8144:   % now.  --karl, 15jan04.
                   8145:   \catcode`\\=\other
                   8146:   %
                   8147:   % Make the characters 128-255 be printing characters.
                   8148:   {%
                   8149:     \count1=128
                   8150:     \def\loop{%
                   8151:       \catcode\count1=\other
                   8152:       \advance\count1 by 1
                   8153:       \ifnum \count1<256 \loop \fi
                   8154:     }%
                   8155:   }%
                   8156:   %
                   8157:   % @ is our escape character in .aux files, and we need braces.
                   8158:   \catcode`\{=1
                   8159:   \catcode`\}=2
                   8160:   \catcode`\@=0
                   8161: }
                   8162: 
                   8163: \def\readdatafile#1{%
                   8164: \begingroup
                   8165:   \setupdatafile
                   8166:   \input\jobname.#1
                   8167: \endgroup}
                   8168: 
                   8169: 
                   8170: \message{insertions,}
                   8171: % including footnotes.
                   8172: 
                   8173: \newcount \footnoteno
                   8174: 
                   8175: % The trailing space in the following definition for supereject is
                   8176: % vital for proper filling; pages come out unaligned when you do a
                   8177: % pagealignmacro call if that space before the closing brace is
                   8178: % removed. (Generally, numeric constants should always be followed by a
                   8179: % space to prevent strange expansion errors.)
                   8180: \def\supereject{\par\penalty -20000\footnoteno =0 }
                   8181: 
1.1.1.2   misho    8182: % @footnotestyle is meaningful for Info output only.
1.1       misho    8183: \let\footnotestyle=\comment
                   8184: 
                   8185: {\catcode `\@=11
                   8186: %
                   8187: % Auto-number footnotes.  Otherwise like plain.
                   8188: \gdef\footnote{%
                   8189:   \let\indent=\ptexindent
                   8190:   \let\noindent=\ptexnoindent
                   8191:   \global\advance\footnoteno by \@ne
                   8192:   \edef\thisfootno{$^{\the\footnoteno}$}%
                   8193:   %
                   8194:   % In case the footnote comes at the end of a sentence, preserve the
                   8195:   % extra spacing after we do the footnote number.
                   8196:   \let\@sf\empty
                   8197:   \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\ptexslash\fi
                   8198:   %
                   8199:   % Remove inadvertent blank space before typesetting the footnote number.
                   8200:   \unskip
                   8201:   \thisfootno\@sf
                   8202:   \dofootnote
                   8203: }%
                   8204: 
                   8205: % Don't bother with the trickery in plain.tex to not require the
                   8206: % footnote text as a parameter.  Our footnotes don't need to be so general.
                   8207: %
                   8208: % Oh yes, they do; otherwise, @ifset (and anything else that uses
                   8209: % \parseargline) fails inside footnotes because the tokens are fixed when
                   8210: % the footnote is read.  --karl, 16nov96.
                   8211: %
                   8212: \gdef\dofootnote{%
                   8213:   \insert\footins\bgroup
                   8214:   % We want to typeset this text as a normal paragraph, even if the
                   8215:   % footnote reference occurs in (for example) a display environment.
                   8216:   % So reset some parameters.
                   8217:   \hsize=\pagewidth
                   8218:   \interlinepenalty\interfootnotelinepenalty
                   8219:   \splittopskip\ht\strutbox % top baseline for broken footnotes
                   8220:   \splitmaxdepth\dp\strutbox
                   8221:   \floatingpenalty\@MM
                   8222:   \leftskip\z@skip
                   8223:   \rightskip\z@skip
                   8224:   \spaceskip\z@skip
                   8225:   \xspaceskip\z@skip
                   8226:   \parindent\defaultparindent
                   8227:   %
                   8228:   \smallfonts \rm
                   8229:   %
                   8230:   % Because we use hanging indentation in footnotes, a @noindent appears
                   8231:   % to exdent this text, so make it be a no-op.  makeinfo does not use
                   8232:   % hanging indentation so @noindent can still be needed within footnote
                   8233:   % text after an @example or the like (not that this is good style).
                   8234:   \let\noindent = \relax
                   8235:   %
                   8236:   % Hang the footnote text off the number.  Use \everypar in case the
                   8237:   % footnote extends for more than one paragraph.
                   8238:   \everypar = {\hang}%
                   8239:   \textindent{\thisfootno}%
                   8240:   %
                   8241:   % Don't crash into the line above the footnote text.  Since this
                   8242:   % expands into a box, it must come within the paragraph, lest it
                   8243:   % provide a place where TeX can split the footnote.
                   8244:   \footstrut
1.1.1.2   misho    8245:   %
                   8246:   % Invoke rest of plain TeX footnote routine.
1.1       misho    8247:   \futurelet\next\fo@t
                   8248: }
                   8249: }%end \catcode `\@=11
                   8250: 
                   8251: % In case a @footnote appears in a vbox, save the footnote text and create
                   8252: % the real \insert just after the vbox finished.  Otherwise, the insertion
                   8253: % would be lost.
                   8254: % Similarly, if a @footnote appears inside an alignment, save the footnote
                   8255: % text to a box and make the \insert when a row of the table is finished.
                   8256: % And the same can be done for other insert classes.  --kasal, 16nov03.
                   8257: 
                   8258: % Replace the \insert primitive by a cheating macro.
                   8259: % Deeper inside, just make sure that the saved insertions are not spilled
                   8260: % out prematurely.
                   8261: %
                   8262: \def\startsavinginserts{%
                   8263:   \ifx \insert\ptexinsert
                   8264:     \let\insert\saveinsert
                   8265:   \else
                   8266:     \let\checkinserts\relax
                   8267:   \fi
                   8268: }
                   8269: 
                   8270: % This \insert replacement works for both \insert\footins{foo} and
                   8271: % \insert\footins\bgroup foo\egroup, but it doesn't work for \insert27{foo}.
                   8272: %
                   8273: \def\saveinsert#1{%
                   8274:   \edef\next{\noexpand\savetobox \makeSAVEname#1}%
                   8275:   \afterassignment\next
                   8276:   % swallow the left brace
                   8277:   \let\temp =
                   8278: }
                   8279: \def\makeSAVEname#1{\makecsname{SAVE\expandafter\gobble\string#1}}
                   8280: \def\savetobox#1{\global\setbox#1 = \vbox\bgroup \unvbox#1}
                   8281: 
                   8282: \def\checksaveins#1{\ifvoid#1\else \placesaveins#1\fi}
                   8283: 
                   8284: \def\placesaveins#1{%
                   8285:   \ptexinsert \csname\expandafter\gobblesave\string#1\endcsname
                   8286:     {\box#1}%
                   8287: }
                   8288: 
                   8289: % eat @SAVE -- beware, all of them have catcode \other:
                   8290: {
                   8291:   \def\dospecials{\do S\do A\do V\do E} \uncatcodespecials  %  ;-)
                   8292:   \gdef\gobblesave @SAVE{}
                   8293: }
                   8294: 
                   8295: % initialization:
                   8296: \def\newsaveins #1{%
                   8297:   \edef\next{\noexpand\newsaveinsX \makeSAVEname#1}%
                   8298:   \next
                   8299: }
                   8300: \def\newsaveinsX #1{%
                   8301:   \csname newbox\endcsname #1%
                   8302:   \expandafter\def\expandafter\checkinserts\expandafter{\checkinserts
                   8303:     \checksaveins #1}%
                   8304: }
                   8305: 
                   8306: % initialize:
                   8307: \let\checkinserts\empty
                   8308: \newsaveins\footins
                   8309: \newsaveins\margin
                   8310: 
                   8311: 
                   8312: % @image.  We use the macros from epsf.tex to support this.
                   8313: % If epsf.tex is not installed and @image is used, we complain.
                   8314: %
                   8315: % Check for and read epsf.tex up front.  If we read it only at @image
                   8316: % time, we might be inside a group, and then its definitions would get
                   8317: % undone and the next image would fail.
                   8318: \openin 1 = epsf.tex
                   8319: \ifeof 1 \else
                   8320:   % Do not bother showing banner with epsf.tex v2.7k (available in
                   8321:   % doc/epsf.tex and on ctan).
                   8322:   \def\epsfannounce{\toks0 = }%
                   8323:   \input epsf.tex
                   8324: \fi
                   8325: \closein 1
                   8326: %
                   8327: % We will only complain once about lack of epsf.tex.
                   8328: \newif\ifwarnednoepsf
                   8329: \newhelp\noepsfhelp{epsf.tex must be installed for images to
                   8330:   work.  It is also included in the Texinfo distribution, or you can get
                   8331:   it from ftp://tug.org/tex/epsf.tex.}
                   8332: %
                   8333: \def\image#1{%
1.1.1.3 ! misho    8334:   \ifx\epsfbox\thisisundefined
1.1       misho    8335:     \ifwarnednoepsf \else
                   8336:       \errhelp = \noepsfhelp
                   8337:       \errmessage{epsf.tex not found, images will be ignored}%
                   8338:       \global\warnednoepsftrue
                   8339:     \fi
                   8340:   \else
                   8341:     \imagexxx #1,,,,,\finish
                   8342:   \fi
                   8343: }
                   8344: %
                   8345: % Arguments to @image:
                   8346: % #1 is (mandatory) image filename; we tack on .eps extension.
                   8347: % #2 is (optional) width, #3 is (optional) height.
                   8348: % #4 is (ignored optional) html alt text.
                   8349: % #5 is (ignored optional) extension.
1.1.1.2   misho    8350: % #6 is just the usual extra ignored arg for parsing stuff.
1.1       misho    8351: \newif\ifimagevmode
                   8352: \def\imagexxx#1,#2,#3,#4,#5,#6\finish{\begingroup
                   8353:   \catcode`\^^M = 5     % in case we're inside an example
                   8354:   \normalturnoffactive  % allow _ et al. in names
                   8355:   % If the image is by itself, center it.
                   8356:   \ifvmode
                   8357:     \imagevmodetrue
1.1.1.3 ! misho    8358:   \else \ifx\centersub\centerV
        !          8359:     % for @center @image, we need a vbox so we can have our vertical space
        !          8360:     \imagevmodetrue
        !          8361:     \vbox\bgroup % vbox has better behavior than vtop herev
        !          8362:   \fi\fi
        !          8363:   %
        !          8364:   \ifimagevmode
1.1       misho    8365:     \nobreak\medskip
                   8366:     % Usually we'll have text after the image which will insert
                   8367:     % \parskip glue, so insert it here too to equalize the space
                   8368:     % above and below.
                   8369:     \nobreak\vskip\parskip
                   8370:     \nobreak
                   8371:   \fi
                   8372:   %
                   8373:   % Leave vertical mode so that indentation from an enclosing
1.1.1.3 ! misho    8374:   %  environment such as @quotation is respected.
        !          8375:   % However, if we're at the top level, we don't want the
        !          8376:   %  normal paragraph indentation.
        !          8377:   % On the other hand, if we are in the case of @center @image, we don't
        !          8378:   %  want to start a paragraph, which will create a hsize-width box and
        !          8379:   %  eradicate the centering.
        !          8380:   \ifx\centersub\centerV\else \noindent \fi
1.1       misho    8381:   %
                   8382:   % Output the image.
                   8383:   \ifpdf
                   8384:     \dopdfimage{#1}{#2}{#3}%
                   8385:   \else
                   8386:     % \epsfbox itself resets \epsf?size at each figure.
                   8387:     \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi
                   8388:     \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax \fi
                   8389:     \epsfbox{#1.eps}%
                   8390:   \fi
                   8391:   %
1.1.1.3 ! misho    8392:   \ifimagevmode
        !          8393:     \medskip  % space after a standalone image
        !          8394:   \fi  
        !          8395:   \ifx\centersub\centerV \egroup \fi
1.1       misho    8396: \endgroup}
                   8397: 
                   8398: 
                   8399: % @float FLOATTYPE,LABEL,LOC ... @end float for displayed figures, tables,
                   8400: % etc.  We don't actually implement floating yet, we always include the
                   8401: % float "here".  But it seemed the best name for the future.
                   8402: %
                   8403: \envparseargdef\float{\eatcommaspace\eatcommaspace\dofloat#1, , ,\finish}
                   8404: 
                   8405: % There may be a space before second and/or third parameter; delete it.
                   8406: \def\eatcommaspace#1, {#1,}
                   8407: 
                   8408: % #1 is the optional FLOATTYPE, the text label for this float, typically
                   8409: % "Figure", "Table", "Example", etc.  Can't contain commas.  If omitted,
                   8410: % this float will not be numbered and cannot be referred to.
                   8411: %
                   8412: % #2 is the optional xref label.  Also must be present for the float to
                   8413: % be referable.
                   8414: %
                   8415: % #3 is the optional positioning argument; for now, it is ignored.  It
                   8416: % will somehow specify the positions allowed to float to (here, top, bottom).
                   8417: %
                   8418: % We keep a separate counter for each FLOATTYPE, which we reset at each
                   8419: % chapter-level command.
                   8420: \let\resetallfloatnos=\empty
                   8421: %
                   8422: \def\dofloat#1,#2,#3,#4\finish{%
                   8423:   \let\thiscaption=\empty
                   8424:   \let\thisshortcaption=\empty
                   8425:   %
                   8426:   % don't lose footnotes inside @float.
                   8427:   %
                   8428:   % BEWARE: when the floats start float, we have to issue warning whenever an
                   8429:   % insert appears inside a float which could possibly float. --kasal, 26may04
                   8430:   %
                   8431:   \startsavinginserts
                   8432:   %
                   8433:   % We can't be used inside a paragraph.
                   8434:   \par
                   8435:   %
                   8436:   \vtop\bgroup
                   8437:     \def\floattype{#1}%
                   8438:     \def\floatlabel{#2}%
                   8439:     \def\floatloc{#3}% we do nothing with this yet.
                   8440:     %
                   8441:     \ifx\floattype\empty
                   8442:       \let\safefloattype=\empty
                   8443:     \else
                   8444:       {%
                   8445:         % the floattype might have accents or other special characters,
                   8446:         % but we need to use it in a control sequence name.
                   8447:         \indexnofonts
                   8448:         \turnoffactive
                   8449:         \xdef\safefloattype{\floattype}%
                   8450:       }%
                   8451:     \fi
                   8452:     %
                   8453:     % If label is given but no type, we handle that as the empty type.
                   8454:     \ifx\floatlabel\empty \else
                   8455:       % We want each FLOATTYPE to be numbered separately (Figure 1,
                   8456:       % Table 1, Figure 2, ...).  (And if no label, no number.)
                   8457:       %
                   8458:       \expandafter\getfloatno\csname\safefloattype floatno\endcsname
                   8459:       \global\advance\floatno by 1
                   8460:       %
                   8461:       {%
                   8462:         % This magic value for \lastsection is output by \setref as the
                   8463:         % XREFLABEL-title value.  \xrefX uses it to distinguish float
                   8464:         % labels (which have a completely different output format) from
                   8465:         % node and anchor labels.  And \xrdef uses it to construct the
                   8466:         % lists of floats.
                   8467:         %
                   8468:         \edef\lastsection{\floatmagic=\safefloattype}%
                   8469:         \setref{\floatlabel}{Yfloat}%
                   8470:       }%
                   8471:     \fi
                   8472:     %
                   8473:     % start with \parskip glue, I guess.
                   8474:     \vskip\parskip
                   8475:     %
                   8476:     % Don't suppress indentation if a float happens to start a section.
                   8477:     \restorefirstparagraphindent
                   8478: }
                   8479: 
                   8480: % we have these possibilities:
                   8481: % @float Foo,lbl & @caption{Cap}: Foo 1.1: Cap
                   8482: % @float Foo,lbl & no caption:    Foo 1.1
                   8483: % @float Foo & @caption{Cap}:     Foo: Cap
                   8484: % @float Foo & no caption:        Foo
                   8485: % @float ,lbl & Caption{Cap}:     1.1: Cap
                   8486: % @float ,lbl & no caption:       1.1
                   8487: % @float & @caption{Cap}:         Cap
                   8488: % @float & no caption:
                   8489: %
                   8490: \def\Efloat{%
                   8491:     \let\floatident = \empty
                   8492:     %
                   8493:     % In all cases, if we have a float type, it comes first.
                   8494:     \ifx\floattype\empty \else \def\floatident{\floattype}\fi
                   8495:     %
                   8496:     % If we have an xref label, the number comes next.
                   8497:     \ifx\floatlabel\empty \else
                   8498:       \ifx\floattype\empty \else % if also had float type, need tie first.
                   8499:         \appendtomacro\floatident{\tie}%
                   8500:       \fi
                   8501:       % the number.
                   8502:       \appendtomacro\floatident{\chaplevelprefix\the\floatno}%
                   8503:     \fi
                   8504:     %
                   8505:     % Start the printed caption with what we've constructed in
                   8506:     % \floatident, but keep it separate; we need \floatident again.
                   8507:     \let\captionline = \floatident
                   8508:     %
                   8509:     \ifx\thiscaption\empty \else
                   8510:       \ifx\floatident\empty \else
                   8511:        \appendtomacro\captionline{: }% had ident, so need a colon between
                   8512:       \fi
                   8513:       %
                   8514:       % caption text.
                   8515:       \appendtomacro\captionline{\scanexp\thiscaption}%
                   8516:     \fi
                   8517:     %
                   8518:     % If we have anything to print, print it, with space before.
                   8519:     % Eventually this needs to become an \insert.
                   8520:     \ifx\captionline\empty \else
                   8521:       \vskip.5\parskip
                   8522:       \captionline
                   8523:       %
                   8524:       % Space below caption.
                   8525:       \vskip\parskip
                   8526:     \fi
                   8527:     %
                   8528:     % If have an xref label, write the list of floats info.  Do this
                   8529:     % after the caption, to avoid chance of it being a breakpoint.
                   8530:     \ifx\floatlabel\empty \else
                   8531:       % Write the text that goes in the lof to the aux file as
                   8532:       % \floatlabel-lof.  Besides \floatident, we include the short
                   8533:       % caption if specified, else the full caption if specified, else nothing.
                   8534:       {%
                   8535:         \atdummies
                   8536:         %
                   8537:         % since we read the caption text in the macro world, where ^^M
                   8538:         % is turned into a normal character, we have to scan it back, so
                   8539:         % we don't write the literal three characters "^^M" into the aux file.
                   8540:        \scanexp{%
                   8541:          \xdef\noexpand\gtemp{%
                   8542:            \ifx\thisshortcaption\empty
                   8543:              \thiscaption
                   8544:            \else
                   8545:              \thisshortcaption
                   8546:            \fi
                   8547:          }%
                   8548:        }%
                   8549:         \immediate\write\auxfile{@xrdef{\floatlabel-lof}{\floatident
                   8550:          \ifx\gtemp\empty \else : \gtemp \fi}}%
                   8551:       }%
                   8552:     \fi
                   8553:   \egroup  % end of \vtop
                   8554:   %
                   8555:   % place the captured inserts
                   8556:   %
                   8557:   % BEWARE: when the floats start floating, we have to issue warning
                   8558:   % whenever an insert appears inside a float which could possibly
                   8559:   % float. --kasal, 26may04
                   8560:   %
                   8561:   \checkinserts
                   8562: }
                   8563: 
                   8564: % Append the tokens #2 to the definition of macro #1, not expanding either.
                   8565: %
                   8566: \def\appendtomacro#1#2{%
                   8567:   \expandafter\def\expandafter#1\expandafter{#1#2}%
                   8568: }
                   8569: 
                   8570: % @caption, @shortcaption
                   8571: %
                   8572: \def\caption{\docaption\thiscaption}
                   8573: \def\shortcaption{\docaption\thisshortcaption}
                   8574: \def\docaption{\checkenv\float \bgroup\scanargctxt\defcaption}
                   8575: \def\defcaption#1#2{\egroup \def#1{#2}}
                   8576: 
                   8577: % The parameter is the control sequence identifying the counter we are
                   8578: % going to use.  Create it if it doesn't exist and assign it to \floatno.
                   8579: \def\getfloatno#1{%
                   8580:   \ifx#1\relax
                   8581:       % Haven't seen this figure type before.
                   8582:       \csname newcount\endcsname #1%
                   8583:       %
                   8584:       % Remember to reset this floatno at the next chap.
                   8585:       \expandafter\gdef\expandafter\resetallfloatnos
                   8586:         \expandafter{\resetallfloatnos #1=0 }%
                   8587:   \fi
                   8588:   \let\floatno#1%
                   8589: }
                   8590: 
                   8591: % \setref calls this to get the XREFLABEL-snt value.  We want an @xref
                   8592: % to the FLOATLABEL to expand to "Figure 3.1".  We call \setref when we
                   8593: % first read the @float command.
                   8594: %
                   8595: \def\Yfloat{\floattype@tie \chaplevelprefix\the\floatno}%
                   8596: 
                   8597: % Magic string used for the XREFLABEL-title value, so \xrefX can
                   8598: % distinguish floats from other xref types.
                   8599: \def\floatmagic{!!float!!}
                   8600: 
                   8601: % #1 is the control sequence we are passed; we expand into a conditional
                   8602: % which is true if #1 represents a float ref.  That is, the magic
                   8603: % \lastsection value which we \setref above.
                   8604: %
                   8605: \def\iffloat#1{\expandafter\doiffloat#1==\finish}
                   8606: %
                   8607: % #1 is (maybe) the \floatmagic string.  If so, #2 will be the
                   8608: % (safe) float type for this float.  We set \iffloattype to #2.
                   8609: %
                   8610: \def\doiffloat#1=#2=#3\finish{%
                   8611:   \def\temp{#1}%
                   8612:   \def\iffloattype{#2}%
                   8613:   \ifx\temp\floatmagic
                   8614: }
                   8615: 
                   8616: % @listoffloats FLOATTYPE - print a list of floats like a table of contents.
                   8617: %
                   8618: \parseargdef\listoffloats{%
                   8619:   \def\floattype{#1}% floattype
                   8620:   {%
                   8621:     % the floattype might have accents or other special characters,
                   8622:     % but we need to use it in a control sequence name.
                   8623:     \indexnofonts
                   8624:     \turnoffactive
                   8625:     \xdef\safefloattype{\floattype}%
                   8626:   }%
                   8627:   %
                   8628:   % \xrdef saves the floats as a \do-list in \floatlistSAFEFLOATTYPE.
                   8629:   \expandafter\ifx\csname floatlist\safefloattype\endcsname \relax
                   8630:     \ifhavexrefs
                   8631:       % if the user said @listoffloats foo but never @float foo.
                   8632:       \message{\linenumber No `\safefloattype' floats to list.}%
                   8633:     \fi
                   8634:   \else
                   8635:     \begingroup
                   8636:       \leftskip=\tocindent  % indent these entries like a toc
                   8637:       \let\do=\listoffloatsdo
                   8638:       \csname floatlist\safefloattype\endcsname
                   8639:     \endgroup
                   8640:   \fi
                   8641: }
                   8642: 
                   8643: % This is called on each entry in a list of floats.  We're passed the
                   8644: % xref label, in the form LABEL-title, which is how we save it in the
                   8645: % aux file.  We strip off the -title and look up \XRLABEL-lof, which
                   8646: % has the text we're supposed to typeset here.
                   8647: %
                   8648: % Figures without xref labels will not be included in the list (since
                   8649: % they won't appear in the aux file).
                   8650: %
                   8651: \def\listoffloatsdo#1{\listoffloatsdoentry#1\finish}
                   8652: \def\listoffloatsdoentry#1-title\finish{{%
                   8653:   % Can't fully expand XR#1-lof because it can contain anything.  Just
                   8654:   % pass the control sequence.  On the other hand, XR#1-pg is just the
                   8655:   % page number, and we want to fully expand that so we can get a link
                   8656:   % in pdf output.
                   8657:   \toksA = \expandafter{\csname XR#1-lof\endcsname}%
                   8658:   %
                   8659:   % use the same \entry macro we use to generate the TOC and index.
                   8660:   \edef\writeentry{\noexpand\entry{\the\toksA}{\csname XR#1-pg\endcsname}}%
                   8661:   \writeentry
                   8662: }}
                   8663: 
                   8664: 
                   8665: \message{localization,}
                   8666: 
                   8667: % For single-language documents, @documentlanguage is usually given very
                   8668: % early, just after @documentencoding.  Single argument is the language
                   8669: % (de) or locale (de_DE) abbreviation.
                   8670: %
                   8671: {
                   8672:   \catcode`\_ = \active
                   8673:   \globaldefs=1
                   8674: \parseargdef\documentlanguage{\begingroup
                   8675:   \let_=\normalunderscore  % normal _ character for filenames
                   8676:   \tex % read txi-??.tex file in plain TeX.
                   8677:     % Read the file by the name they passed if it exists.
                   8678:     \openin 1 txi-#1.tex
                   8679:     \ifeof 1
                   8680:       \documentlanguagetrywithoutunderscore{#1_\finish}%
                   8681:     \else
                   8682:       \globaldefs = 1  % everything in the txi-LL files needs to persist
                   8683:       \input txi-#1.tex
                   8684:     \fi
                   8685:     \closein 1
                   8686:   \endgroup % end raw TeX
                   8687: \endgroup}
                   8688: %
                   8689: % If they passed de_DE, and txi-de_DE.tex doesn't exist,
                   8690: % try txi-de.tex.
                   8691: %
                   8692: \gdef\documentlanguagetrywithoutunderscore#1_#2\finish{%
                   8693:   \openin 1 txi-#1.tex
                   8694:   \ifeof 1
                   8695:     \errhelp = \nolanghelp
                   8696:     \errmessage{Cannot read language file txi-#1.tex}%
                   8697:   \else
                   8698:     \globaldefs = 1  % everything in the txi-LL files needs to persist
                   8699:     \input txi-#1.tex
                   8700:   \fi
                   8701:   \closein 1
                   8702: }
                   8703: }% end of special _ catcode
                   8704: %
                   8705: \newhelp\nolanghelp{The given language definition file cannot be found or
                   8706: is empty.  Maybe you need to install it?  Putting it in the current
                   8707: directory should work if nowhere else does.}
                   8708: 
                   8709: % This macro is called from txi-??.tex files; the first argument is the
                   8710: % \language name to set (without the "\lang@" prefix), the second and
                   8711: % third args are \{left,right}hyphenmin.
                   8712: %
                   8713: % The language names to pass are determined when the format is built.
                   8714: % See the etex.log file created at that time, e.g.,
                   8715: % /usr/local/texlive/2008/texmf-var/web2c/pdftex/etex.log.
                   8716: %
                   8717: % With TeX Live 2008, etex now includes hyphenation patterns for all
                   8718: % available languages.  This means we can support hyphenation in
                   8719: % Texinfo, at least to some extent.  (This still doesn't solve the
                   8720: % accented characters problem.)
                   8721: %
                   8722: \catcode`@=11
                   8723: \def\txisetlanguage#1#2#3{%
                   8724:   % do not set the language if the name is undefined in the current TeX.
                   8725:   \expandafter\ifx\csname lang@#1\endcsname \relax
                   8726:     \message{no patterns for #1}%
                   8727:   \else
                   8728:     \global\language = \csname lang@#1\endcsname
                   8729:   \fi
                   8730:   % but there is no harm in adjusting the hyphenmin values regardless.
                   8731:   \global\lefthyphenmin = #2\relax
                   8732:   \global\righthyphenmin = #3\relax
                   8733: }
                   8734: 
                   8735: % Helpers for encodings.
                   8736: % Set the catcode of characters 128 through 255 to the specified number.
                   8737: %
                   8738: \def\setnonasciicharscatcode#1{%
                   8739:    \count255=128
                   8740:    \loop\ifnum\count255<256
                   8741:       \global\catcode\count255=#1\relax
                   8742:       \advance\count255 by 1
                   8743:    \repeat
                   8744: }
                   8745: 
                   8746: \def\setnonasciicharscatcodenonglobal#1{%
                   8747:    \count255=128
                   8748:    \loop\ifnum\count255<256
                   8749:       \catcode\count255=#1\relax
                   8750:       \advance\count255 by 1
                   8751:    \repeat
                   8752: }
                   8753: 
                   8754: % @documentencoding sets the definition of non-ASCII characters
                   8755: % according to the specified encoding.
                   8756: %
                   8757: \parseargdef\documentencoding{%
                   8758:   % Encoding being declared for the document.
                   8759:   \def\declaredencoding{\csname #1.enc\endcsname}%
                   8760:   %
                   8761:   % Supported encodings: names converted to tokens in order to be able
                   8762:   % to compare them with \ifx.
                   8763:   \def\ascii{\csname US-ASCII.enc\endcsname}%
                   8764:   \def\latnine{\csname ISO-8859-15.enc\endcsname}%
                   8765:   \def\latone{\csname ISO-8859-1.enc\endcsname}%
                   8766:   \def\lattwo{\csname ISO-8859-2.enc\endcsname}%
                   8767:   \def\utfeight{\csname UTF-8.enc\endcsname}%
                   8768:   %
                   8769:   \ifx \declaredencoding \ascii
                   8770:      \asciichardefs
                   8771:   %
                   8772:   \else \ifx \declaredencoding \lattwo
                   8773:      \setnonasciicharscatcode\active
                   8774:      \lattwochardefs
                   8775:   %
                   8776:   \else \ifx \declaredencoding \latone
                   8777:      \setnonasciicharscatcode\active
                   8778:      \latonechardefs
                   8779:   %
                   8780:   \else \ifx \declaredencoding \latnine
                   8781:      \setnonasciicharscatcode\active
                   8782:      \latninechardefs
                   8783:   %
                   8784:   \else \ifx \declaredencoding \utfeight
                   8785:      \setnonasciicharscatcode\active
                   8786:      \utfeightchardefs
                   8787:   %
                   8788:   \else
                   8789:     \message{Unknown document encoding #1, ignoring.}%
                   8790:   %
                   8791:   \fi % utfeight
                   8792:   \fi % latnine
                   8793:   \fi % latone
                   8794:   \fi % lattwo
                   8795:   \fi % ascii
                   8796: }
                   8797: 
                   8798: % A message to be logged when using a character that isn't available
                   8799: % the default font encoding (OT1).
                   8800: %
                   8801: \def\missingcharmsg#1{\message{Character missing in OT1 encoding: #1.}}
                   8802: 
                   8803: % Take account of \c (plain) vs. \, (Texinfo) difference.
                   8804: \def\cedilla#1{\ifx\c\ptexc\c{#1}\else\,{#1}\fi}
                   8805: 
                   8806: % First, make active non-ASCII characters in order for them to be
                   8807: % correctly categorized when TeX reads the replacement text of
                   8808: % macros containing the character definitions.
                   8809: \setnonasciicharscatcode\active
                   8810: %
                   8811: % Latin1 (ISO-8859-1) character definitions.
                   8812: \def\latonechardefs{%
1.1.1.2   misho    8813:   \gdef^^a0{\tie}
1.1       misho    8814:   \gdef^^a1{\exclamdown}
                   8815:   \gdef^^a2{\missingcharmsg{CENT SIGN}}
                   8816:   \gdef^^a3{{\pounds}}
                   8817:   \gdef^^a4{\missingcharmsg{CURRENCY SIGN}}
                   8818:   \gdef^^a5{\missingcharmsg{YEN SIGN}}
                   8819:   \gdef^^a6{\missingcharmsg{BROKEN BAR}}
                   8820:   \gdef^^a7{\S}
                   8821:   \gdef^^a8{\"{}}
                   8822:   \gdef^^a9{\copyright}
                   8823:   \gdef^^aa{\ordf}
                   8824:   \gdef^^ab{\guillemetleft}
                   8825:   \gdef^^ac{$\lnot$}
                   8826:   \gdef^^ad{\-}
                   8827:   \gdef^^ae{\registeredsymbol}
                   8828:   \gdef^^af{\={}}
                   8829:   %
                   8830:   \gdef^^b0{\textdegree}
                   8831:   \gdef^^b1{$\pm$}
                   8832:   \gdef^^b2{$^2$}
                   8833:   \gdef^^b3{$^3$}
                   8834:   \gdef^^b4{\'{}}
                   8835:   \gdef^^b5{$\mu$}
                   8836:   \gdef^^b6{\P}
                   8837:   %
                   8838:   \gdef^^b7{$^.$}
                   8839:   \gdef^^b8{\cedilla\ }
                   8840:   \gdef^^b9{$^1$}
                   8841:   \gdef^^ba{\ordm}
                   8842:   %
1.1.1.2   misho    8843:   \gdef^^bb{\guillemetright}
1.1       misho    8844:   \gdef^^bc{$1\over4$}
                   8845:   \gdef^^bd{$1\over2$}
                   8846:   \gdef^^be{$3\over4$}
                   8847:   \gdef^^bf{\questiondown}
                   8848:   %
                   8849:   \gdef^^c0{\`A}
                   8850:   \gdef^^c1{\'A}
                   8851:   \gdef^^c2{\^A}
                   8852:   \gdef^^c3{\~A}
                   8853:   \gdef^^c4{\"A}
                   8854:   \gdef^^c5{\ringaccent A}
                   8855:   \gdef^^c6{\AE}
                   8856:   \gdef^^c7{\cedilla C}
                   8857:   \gdef^^c8{\`E}
                   8858:   \gdef^^c9{\'E}
                   8859:   \gdef^^ca{\^E}
                   8860:   \gdef^^cb{\"E}
                   8861:   \gdef^^cc{\`I}
                   8862:   \gdef^^cd{\'I}
                   8863:   \gdef^^ce{\^I}
                   8864:   \gdef^^cf{\"I}
                   8865:   %
                   8866:   \gdef^^d0{\DH}
                   8867:   \gdef^^d1{\~N}
                   8868:   \gdef^^d2{\`O}
                   8869:   \gdef^^d3{\'O}
                   8870:   \gdef^^d4{\^O}
                   8871:   \gdef^^d5{\~O}
                   8872:   \gdef^^d6{\"O}
                   8873:   \gdef^^d7{$\times$}
                   8874:   \gdef^^d8{\O}
                   8875:   \gdef^^d9{\`U}
                   8876:   \gdef^^da{\'U}
                   8877:   \gdef^^db{\^U}
                   8878:   \gdef^^dc{\"U}
                   8879:   \gdef^^dd{\'Y}
                   8880:   \gdef^^de{\TH}
                   8881:   \gdef^^df{\ss}
                   8882:   %
                   8883:   \gdef^^e0{\`a}
                   8884:   \gdef^^e1{\'a}
                   8885:   \gdef^^e2{\^a}
                   8886:   \gdef^^e3{\~a}
                   8887:   \gdef^^e4{\"a}
                   8888:   \gdef^^e5{\ringaccent a}
                   8889:   \gdef^^e6{\ae}
                   8890:   \gdef^^e7{\cedilla c}
                   8891:   \gdef^^e8{\`e}
                   8892:   \gdef^^e9{\'e}
                   8893:   \gdef^^ea{\^e}
                   8894:   \gdef^^eb{\"e}
                   8895:   \gdef^^ec{\`{\dotless i}}
                   8896:   \gdef^^ed{\'{\dotless i}}
                   8897:   \gdef^^ee{\^{\dotless i}}
                   8898:   \gdef^^ef{\"{\dotless i}}
                   8899:   %
                   8900:   \gdef^^f0{\dh}
                   8901:   \gdef^^f1{\~n}
                   8902:   \gdef^^f2{\`o}
                   8903:   \gdef^^f3{\'o}
                   8904:   \gdef^^f4{\^o}
                   8905:   \gdef^^f5{\~o}
                   8906:   \gdef^^f6{\"o}
                   8907:   \gdef^^f7{$\div$}
                   8908:   \gdef^^f8{\o}
                   8909:   \gdef^^f9{\`u}
                   8910:   \gdef^^fa{\'u}
                   8911:   \gdef^^fb{\^u}
                   8912:   \gdef^^fc{\"u}
                   8913:   \gdef^^fd{\'y}
                   8914:   \gdef^^fe{\th}
                   8915:   \gdef^^ff{\"y}
                   8916: }
                   8917: 
                   8918: % Latin9 (ISO-8859-15) encoding character definitions.
                   8919: \def\latninechardefs{%
                   8920:   % Encoding is almost identical to Latin1.
                   8921:   \latonechardefs
                   8922:   %
                   8923:   \gdef^^a4{\euro}
                   8924:   \gdef^^a6{\v S}
                   8925:   \gdef^^a8{\v s}
                   8926:   \gdef^^b4{\v Z}
                   8927:   \gdef^^b8{\v z}
                   8928:   \gdef^^bc{\OE}
                   8929:   \gdef^^bd{\oe}
                   8930:   \gdef^^be{\"Y}
                   8931: }
                   8932: 
                   8933: % Latin2 (ISO-8859-2) character definitions.
                   8934: \def\lattwochardefs{%
1.1.1.2   misho    8935:   \gdef^^a0{\tie}
1.1       misho    8936:   \gdef^^a1{\ogonek{A}}
                   8937:   \gdef^^a2{\u{}}
                   8938:   \gdef^^a3{\L}
                   8939:   \gdef^^a4{\missingcharmsg{CURRENCY SIGN}}
                   8940:   \gdef^^a5{\v L}
                   8941:   \gdef^^a6{\'S}
                   8942:   \gdef^^a7{\S}
                   8943:   \gdef^^a8{\"{}}
                   8944:   \gdef^^a9{\v S}
                   8945:   \gdef^^aa{\cedilla S}
                   8946:   \gdef^^ab{\v T}
                   8947:   \gdef^^ac{\'Z}
                   8948:   \gdef^^ad{\-}
                   8949:   \gdef^^ae{\v Z}
                   8950:   \gdef^^af{\dotaccent Z}
                   8951:   %
                   8952:   \gdef^^b0{\textdegree}
                   8953:   \gdef^^b1{\ogonek{a}}
                   8954:   \gdef^^b2{\ogonek{ }}
                   8955:   \gdef^^b3{\l}
                   8956:   \gdef^^b4{\'{}}
                   8957:   \gdef^^b5{\v l}
                   8958:   \gdef^^b6{\'s}
                   8959:   \gdef^^b7{\v{}}
                   8960:   \gdef^^b8{\cedilla\ }
                   8961:   \gdef^^b9{\v s}
                   8962:   \gdef^^ba{\cedilla s}
                   8963:   \gdef^^bb{\v t}
                   8964:   \gdef^^bc{\'z}
                   8965:   \gdef^^bd{\H{}}
                   8966:   \gdef^^be{\v z}
                   8967:   \gdef^^bf{\dotaccent z}
                   8968:   %
                   8969:   \gdef^^c0{\'R}
                   8970:   \gdef^^c1{\'A}
                   8971:   \gdef^^c2{\^A}
                   8972:   \gdef^^c3{\u A}
                   8973:   \gdef^^c4{\"A}
                   8974:   \gdef^^c5{\'L}
                   8975:   \gdef^^c6{\'C}
                   8976:   \gdef^^c7{\cedilla C}
                   8977:   \gdef^^c8{\v C}
                   8978:   \gdef^^c9{\'E}
                   8979:   \gdef^^ca{\ogonek{E}}
                   8980:   \gdef^^cb{\"E}
                   8981:   \gdef^^cc{\v E}
                   8982:   \gdef^^cd{\'I}
                   8983:   \gdef^^ce{\^I}
                   8984:   \gdef^^cf{\v D}
                   8985:   %
                   8986:   \gdef^^d0{\DH}
                   8987:   \gdef^^d1{\'N}
                   8988:   \gdef^^d2{\v N}
                   8989:   \gdef^^d3{\'O}
                   8990:   \gdef^^d4{\^O}
                   8991:   \gdef^^d5{\H O}
                   8992:   \gdef^^d6{\"O}
                   8993:   \gdef^^d7{$\times$}
                   8994:   \gdef^^d8{\v R}
                   8995:   \gdef^^d9{\ringaccent U}
                   8996:   \gdef^^da{\'U}
                   8997:   \gdef^^db{\H U}
                   8998:   \gdef^^dc{\"U}
                   8999:   \gdef^^dd{\'Y}
                   9000:   \gdef^^de{\cedilla T}
                   9001:   \gdef^^df{\ss}
                   9002:   %
                   9003:   \gdef^^e0{\'r}
                   9004:   \gdef^^e1{\'a}
                   9005:   \gdef^^e2{\^a}
                   9006:   \gdef^^e3{\u a}
                   9007:   \gdef^^e4{\"a}
                   9008:   \gdef^^e5{\'l}
                   9009:   \gdef^^e6{\'c}
                   9010:   \gdef^^e7{\cedilla c}
                   9011:   \gdef^^e8{\v c}
                   9012:   \gdef^^e9{\'e}
                   9013:   \gdef^^ea{\ogonek{e}}
                   9014:   \gdef^^eb{\"e}
                   9015:   \gdef^^ec{\v e}
1.1.1.2   misho    9016:   \gdef^^ed{\'{\dotless{i}}}
                   9017:   \gdef^^ee{\^{\dotless{i}}}
1.1       misho    9018:   \gdef^^ef{\v d}
                   9019:   %
                   9020:   \gdef^^f0{\dh}
                   9021:   \gdef^^f1{\'n}
                   9022:   \gdef^^f2{\v n}
                   9023:   \gdef^^f3{\'o}
                   9024:   \gdef^^f4{\^o}
                   9025:   \gdef^^f5{\H o}
                   9026:   \gdef^^f6{\"o}
                   9027:   \gdef^^f7{$\div$}
                   9028:   \gdef^^f8{\v r}
                   9029:   \gdef^^f9{\ringaccent u}
                   9030:   \gdef^^fa{\'u}
                   9031:   \gdef^^fb{\H u}
                   9032:   \gdef^^fc{\"u}
                   9033:   \gdef^^fd{\'y}
                   9034:   \gdef^^fe{\cedilla t}
                   9035:   \gdef^^ff{\dotaccent{}}
                   9036: }
                   9037: 
                   9038: % UTF-8 character definitions.
                   9039: %
                   9040: % This code to support UTF-8 is based on LaTeX's utf8.def, with some
                   9041: % changes for Texinfo conventions.  It is included here under the GPL by
                   9042: % permission from Frank Mittelbach and the LaTeX team.
                   9043: %
                   9044: \newcount\countUTFx
                   9045: \newcount\countUTFy
                   9046: \newcount\countUTFz
                   9047: 
                   9048: \gdef\UTFviiiTwoOctets#1#2{\expandafter
                   9049:    \UTFviiiDefined\csname u8:#1\string #2\endcsname}
                   9050: %
                   9051: \gdef\UTFviiiThreeOctets#1#2#3{\expandafter
                   9052:    \UTFviiiDefined\csname u8:#1\string #2\string #3\endcsname}
                   9053: %
                   9054: \gdef\UTFviiiFourOctets#1#2#3#4{\expandafter
                   9055:    \UTFviiiDefined\csname u8:#1\string #2\string #3\string #4\endcsname}
                   9056: 
                   9057: \gdef\UTFviiiDefined#1{%
                   9058:   \ifx #1\relax
                   9059:     \message{\linenumber Unicode char \string #1 not defined for Texinfo}%
                   9060:   \else
                   9061:     \expandafter #1%
                   9062:   \fi
                   9063: }
                   9064: 
                   9065: \begingroup
                   9066:   \catcode`\~13
                   9067:   \catcode`\"12
                   9068: 
                   9069:   \def\UTFviiiLoop{%
                   9070:     \global\catcode\countUTFx\active
                   9071:     \uccode`\~\countUTFx
                   9072:     \uppercase\expandafter{\UTFviiiTmp}%
                   9073:     \advance\countUTFx by 1
                   9074:     \ifnum\countUTFx < \countUTFy
                   9075:       \expandafter\UTFviiiLoop
                   9076:     \fi}
                   9077: 
                   9078:   \countUTFx = "C2
                   9079:   \countUTFy = "E0
                   9080:   \def\UTFviiiTmp{%
                   9081:     \xdef~{\noexpand\UTFviiiTwoOctets\string~}}
                   9082:   \UTFviiiLoop
                   9083: 
                   9084:   \countUTFx = "E0
                   9085:   \countUTFy = "F0
                   9086:   \def\UTFviiiTmp{%
                   9087:     \xdef~{\noexpand\UTFviiiThreeOctets\string~}}
                   9088:   \UTFviiiLoop
                   9089: 
                   9090:   \countUTFx = "F0
                   9091:   \countUTFy = "F4
                   9092:   \def\UTFviiiTmp{%
                   9093:     \xdef~{\noexpand\UTFviiiFourOctets\string~}}
                   9094:   \UTFviiiLoop
                   9095: \endgroup
                   9096: 
                   9097: \begingroup
                   9098:   \catcode`\"=12
                   9099:   \catcode`\<=12
                   9100:   \catcode`\.=12
                   9101:   \catcode`\,=12
                   9102:   \catcode`\;=12
                   9103:   \catcode`\!=12
                   9104:   \catcode`\~=13
                   9105: 
                   9106:   \gdef\DeclareUnicodeCharacter#1#2{%
                   9107:     \countUTFz = "#1\relax
1.1.1.2   misho    9108:     %\wlog{\space\space defining Unicode char U+#1 (decimal \the\countUTFz)}%
1.1       misho    9109:     \begingroup
                   9110:       \parseXMLCharref
                   9111:       \def\UTFviiiTwoOctets##1##2{%
                   9112:         \csname u8:##1\string ##2\endcsname}%
                   9113:       \def\UTFviiiThreeOctets##1##2##3{%
                   9114:         \csname u8:##1\string ##2\string ##3\endcsname}%
                   9115:       \def\UTFviiiFourOctets##1##2##3##4{%
                   9116:         \csname u8:##1\string ##2\string ##3\string ##4\endcsname}%
                   9117:       \expandafter\expandafter\expandafter\expandafter
                   9118:        \expandafter\expandafter\expandafter
                   9119:        \gdef\UTFviiiTmp{#2}%
                   9120:     \endgroup}
                   9121: 
                   9122:   \gdef\parseXMLCharref{%
                   9123:     \ifnum\countUTFz < "A0\relax
                   9124:       \errhelp = \EMsimple
                   9125:       \errmessage{Cannot define Unicode char value < 00A0}%
                   9126:     \else\ifnum\countUTFz < "800\relax
                   9127:       \parseUTFviiiA,%
                   9128:       \parseUTFviiiB C\UTFviiiTwoOctets.,%
                   9129:     \else\ifnum\countUTFz < "10000\relax
                   9130:       \parseUTFviiiA;%
                   9131:       \parseUTFviiiA,%
                   9132:       \parseUTFviiiB E\UTFviiiThreeOctets.{,;}%
                   9133:     \else
                   9134:       \parseUTFviiiA;%
                   9135:       \parseUTFviiiA,%
                   9136:       \parseUTFviiiA!%
                   9137:       \parseUTFviiiB F\UTFviiiFourOctets.{!,;}%
                   9138:     \fi\fi\fi
                   9139:   }
                   9140: 
                   9141:   \gdef\parseUTFviiiA#1{%
                   9142:     \countUTFx = \countUTFz
                   9143:     \divide\countUTFz by 64
                   9144:     \countUTFy = \countUTFz
                   9145:     \multiply\countUTFz by 64
                   9146:     \advance\countUTFx by -\countUTFz
                   9147:     \advance\countUTFx by 128
                   9148:     \uccode `#1\countUTFx
                   9149:     \countUTFz = \countUTFy}
                   9150: 
                   9151:   \gdef\parseUTFviiiB#1#2#3#4{%
                   9152:     \advance\countUTFz by "#10\relax
                   9153:     \uccode `#3\countUTFz
                   9154:     \uppercase{\gdef\UTFviiiTmp{#2#3#4}}}
                   9155: \endgroup
                   9156: 
                   9157: \def\utfeightchardefs{%
                   9158:   \DeclareUnicodeCharacter{00A0}{\tie}
                   9159:   \DeclareUnicodeCharacter{00A1}{\exclamdown}
                   9160:   \DeclareUnicodeCharacter{00A3}{\pounds}
                   9161:   \DeclareUnicodeCharacter{00A8}{\"{ }}
                   9162:   \DeclareUnicodeCharacter{00A9}{\copyright}
                   9163:   \DeclareUnicodeCharacter{00AA}{\ordf}
                   9164:   \DeclareUnicodeCharacter{00AB}{\guillemetleft}
                   9165:   \DeclareUnicodeCharacter{00AD}{\-}
                   9166:   \DeclareUnicodeCharacter{00AE}{\registeredsymbol}
                   9167:   \DeclareUnicodeCharacter{00AF}{\={ }}
                   9168: 
                   9169:   \DeclareUnicodeCharacter{00B0}{\ringaccent{ }}
                   9170:   \DeclareUnicodeCharacter{00B4}{\'{ }}
                   9171:   \DeclareUnicodeCharacter{00B8}{\cedilla{ }}
                   9172:   \DeclareUnicodeCharacter{00BA}{\ordm}
                   9173:   \DeclareUnicodeCharacter{00BB}{\guillemetright}
                   9174:   \DeclareUnicodeCharacter{00BF}{\questiondown}
                   9175: 
                   9176:   \DeclareUnicodeCharacter{00C0}{\`A}
                   9177:   \DeclareUnicodeCharacter{00C1}{\'A}
                   9178:   \DeclareUnicodeCharacter{00C2}{\^A}
                   9179:   \DeclareUnicodeCharacter{00C3}{\~A}
                   9180:   \DeclareUnicodeCharacter{00C4}{\"A}
                   9181:   \DeclareUnicodeCharacter{00C5}{\AA}
                   9182:   \DeclareUnicodeCharacter{00C6}{\AE}
                   9183:   \DeclareUnicodeCharacter{00C7}{\cedilla{C}}
                   9184:   \DeclareUnicodeCharacter{00C8}{\`E}
                   9185:   \DeclareUnicodeCharacter{00C9}{\'E}
                   9186:   \DeclareUnicodeCharacter{00CA}{\^E}
                   9187:   \DeclareUnicodeCharacter{00CB}{\"E}
                   9188:   \DeclareUnicodeCharacter{00CC}{\`I}
                   9189:   \DeclareUnicodeCharacter{00CD}{\'I}
                   9190:   \DeclareUnicodeCharacter{00CE}{\^I}
                   9191:   \DeclareUnicodeCharacter{00CF}{\"I}
                   9192: 
                   9193:   \DeclareUnicodeCharacter{00D0}{\DH}
                   9194:   \DeclareUnicodeCharacter{00D1}{\~N}
                   9195:   \DeclareUnicodeCharacter{00D2}{\`O}
                   9196:   \DeclareUnicodeCharacter{00D3}{\'O}
                   9197:   \DeclareUnicodeCharacter{00D4}{\^O}
                   9198:   \DeclareUnicodeCharacter{00D5}{\~O}
                   9199:   \DeclareUnicodeCharacter{00D6}{\"O}
                   9200:   \DeclareUnicodeCharacter{00D8}{\O}
                   9201:   \DeclareUnicodeCharacter{00D9}{\`U}
                   9202:   \DeclareUnicodeCharacter{00DA}{\'U}
                   9203:   \DeclareUnicodeCharacter{00DB}{\^U}
                   9204:   \DeclareUnicodeCharacter{00DC}{\"U}
                   9205:   \DeclareUnicodeCharacter{00DD}{\'Y}
                   9206:   \DeclareUnicodeCharacter{00DE}{\TH}
                   9207:   \DeclareUnicodeCharacter{00DF}{\ss}
                   9208: 
                   9209:   \DeclareUnicodeCharacter{00E0}{\`a}
                   9210:   \DeclareUnicodeCharacter{00E1}{\'a}
                   9211:   \DeclareUnicodeCharacter{00E2}{\^a}
                   9212:   \DeclareUnicodeCharacter{00E3}{\~a}
                   9213:   \DeclareUnicodeCharacter{00E4}{\"a}
                   9214:   \DeclareUnicodeCharacter{00E5}{\aa}
                   9215:   \DeclareUnicodeCharacter{00E6}{\ae}
                   9216:   \DeclareUnicodeCharacter{00E7}{\cedilla{c}}
                   9217:   \DeclareUnicodeCharacter{00E8}{\`e}
                   9218:   \DeclareUnicodeCharacter{00E9}{\'e}
                   9219:   \DeclareUnicodeCharacter{00EA}{\^e}
                   9220:   \DeclareUnicodeCharacter{00EB}{\"e}
                   9221:   \DeclareUnicodeCharacter{00EC}{\`{\dotless{i}}}
                   9222:   \DeclareUnicodeCharacter{00ED}{\'{\dotless{i}}}
                   9223:   \DeclareUnicodeCharacter{00EE}{\^{\dotless{i}}}
                   9224:   \DeclareUnicodeCharacter{00EF}{\"{\dotless{i}}}
                   9225: 
                   9226:   \DeclareUnicodeCharacter{00F0}{\dh}
                   9227:   \DeclareUnicodeCharacter{00F1}{\~n}
                   9228:   \DeclareUnicodeCharacter{00F2}{\`o}
                   9229:   \DeclareUnicodeCharacter{00F3}{\'o}
                   9230:   \DeclareUnicodeCharacter{00F4}{\^o}
                   9231:   \DeclareUnicodeCharacter{00F5}{\~o}
                   9232:   \DeclareUnicodeCharacter{00F6}{\"o}
                   9233:   \DeclareUnicodeCharacter{00F8}{\o}
                   9234:   \DeclareUnicodeCharacter{00F9}{\`u}
                   9235:   \DeclareUnicodeCharacter{00FA}{\'u}
                   9236:   \DeclareUnicodeCharacter{00FB}{\^u}
                   9237:   \DeclareUnicodeCharacter{00FC}{\"u}
                   9238:   \DeclareUnicodeCharacter{00FD}{\'y}
                   9239:   \DeclareUnicodeCharacter{00FE}{\th}
                   9240:   \DeclareUnicodeCharacter{00FF}{\"y}
                   9241: 
                   9242:   \DeclareUnicodeCharacter{0100}{\=A}
                   9243:   \DeclareUnicodeCharacter{0101}{\=a}
                   9244:   \DeclareUnicodeCharacter{0102}{\u{A}}
                   9245:   \DeclareUnicodeCharacter{0103}{\u{a}}
                   9246:   \DeclareUnicodeCharacter{0104}{\ogonek{A}}
                   9247:   \DeclareUnicodeCharacter{0105}{\ogonek{a}}
                   9248:   \DeclareUnicodeCharacter{0106}{\'C}
                   9249:   \DeclareUnicodeCharacter{0107}{\'c}
                   9250:   \DeclareUnicodeCharacter{0108}{\^C}
                   9251:   \DeclareUnicodeCharacter{0109}{\^c}
                   9252:   \DeclareUnicodeCharacter{0118}{\ogonek{E}}
                   9253:   \DeclareUnicodeCharacter{0119}{\ogonek{e}}
                   9254:   \DeclareUnicodeCharacter{010A}{\dotaccent{C}}
                   9255:   \DeclareUnicodeCharacter{010B}{\dotaccent{c}}
                   9256:   \DeclareUnicodeCharacter{010C}{\v{C}}
                   9257:   \DeclareUnicodeCharacter{010D}{\v{c}}
                   9258:   \DeclareUnicodeCharacter{010E}{\v{D}}
                   9259: 
                   9260:   \DeclareUnicodeCharacter{0112}{\=E}
                   9261:   \DeclareUnicodeCharacter{0113}{\=e}
                   9262:   \DeclareUnicodeCharacter{0114}{\u{E}}
                   9263:   \DeclareUnicodeCharacter{0115}{\u{e}}
                   9264:   \DeclareUnicodeCharacter{0116}{\dotaccent{E}}
                   9265:   \DeclareUnicodeCharacter{0117}{\dotaccent{e}}
                   9266:   \DeclareUnicodeCharacter{011A}{\v{E}}
                   9267:   \DeclareUnicodeCharacter{011B}{\v{e}}
                   9268:   \DeclareUnicodeCharacter{011C}{\^G}
                   9269:   \DeclareUnicodeCharacter{011D}{\^g}
                   9270:   \DeclareUnicodeCharacter{011E}{\u{G}}
                   9271:   \DeclareUnicodeCharacter{011F}{\u{g}}
                   9272: 
                   9273:   \DeclareUnicodeCharacter{0120}{\dotaccent{G}}
                   9274:   \DeclareUnicodeCharacter{0121}{\dotaccent{g}}
                   9275:   \DeclareUnicodeCharacter{0124}{\^H}
                   9276:   \DeclareUnicodeCharacter{0125}{\^h}
                   9277:   \DeclareUnicodeCharacter{0128}{\~I}
                   9278:   \DeclareUnicodeCharacter{0129}{\~{\dotless{i}}}
                   9279:   \DeclareUnicodeCharacter{012A}{\=I}
                   9280:   \DeclareUnicodeCharacter{012B}{\={\dotless{i}}}
                   9281:   \DeclareUnicodeCharacter{012C}{\u{I}}
                   9282:   \DeclareUnicodeCharacter{012D}{\u{\dotless{i}}}
                   9283: 
                   9284:   \DeclareUnicodeCharacter{0130}{\dotaccent{I}}
                   9285:   \DeclareUnicodeCharacter{0131}{\dotless{i}}
                   9286:   \DeclareUnicodeCharacter{0132}{IJ}
                   9287:   \DeclareUnicodeCharacter{0133}{ij}
                   9288:   \DeclareUnicodeCharacter{0134}{\^J}
                   9289:   \DeclareUnicodeCharacter{0135}{\^{\dotless{j}}}
                   9290:   \DeclareUnicodeCharacter{0139}{\'L}
                   9291:   \DeclareUnicodeCharacter{013A}{\'l}
                   9292: 
                   9293:   \DeclareUnicodeCharacter{0141}{\L}
                   9294:   \DeclareUnicodeCharacter{0142}{\l}
                   9295:   \DeclareUnicodeCharacter{0143}{\'N}
                   9296:   \DeclareUnicodeCharacter{0144}{\'n}
                   9297:   \DeclareUnicodeCharacter{0147}{\v{N}}
                   9298:   \DeclareUnicodeCharacter{0148}{\v{n}}
                   9299:   \DeclareUnicodeCharacter{014C}{\=O}
                   9300:   \DeclareUnicodeCharacter{014D}{\=o}
                   9301:   \DeclareUnicodeCharacter{014E}{\u{O}}
                   9302:   \DeclareUnicodeCharacter{014F}{\u{o}}
                   9303: 
                   9304:   \DeclareUnicodeCharacter{0150}{\H{O}}
                   9305:   \DeclareUnicodeCharacter{0151}{\H{o}}
                   9306:   \DeclareUnicodeCharacter{0152}{\OE}
                   9307:   \DeclareUnicodeCharacter{0153}{\oe}
                   9308:   \DeclareUnicodeCharacter{0154}{\'R}
                   9309:   \DeclareUnicodeCharacter{0155}{\'r}
                   9310:   \DeclareUnicodeCharacter{0158}{\v{R}}
                   9311:   \DeclareUnicodeCharacter{0159}{\v{r}}
                   9312:   \DeclareUnicodeCharacter{015A}{\'S}
                   9313:   \DeclareUnicodeCharacter{015B}{\'s}
                   9314:   \DeclareUnicodeCharacter{015C}{\^S}
                   9315:   \DeclareUnicodeCharacter{015D}{\^s}
                   9316:   \DeclareUnicodeCharacter{015E}{\cedilla{S}}
                   9317:   \DeclareUnicodeCharacter{015F}{\cedilla{s}}
                   9318: 
                   9319:   \DeclareUnicodeCharacter{0160}{\v{S}}
                   9320:   \DeclareUnicodeCharacter{0161}{\v{s}}
                   9321:   \DeclareUnicodeCharacter{0162}{\cedilla{t}}
                   9322:   \DeclareUnicodeCharacter{0163}{\cedilla{T}}
                   9323:   \DeclareUnicodeCharacter{0164}{\v{T}}
                   9324: 
                   9325:   \DeclareUnicodeCharacter{0168}{\~U}
                   9326:   \DeclareUnicodeCharacter{0169}{\~u}
                   9327:   \DeclareUnicodeCharacter{016A}{\=U}
                   9328:   \DeclareUnicodeCharacter{016B}{\=u}
                   9329:   \DeclareUnicodeCharacter{016C}{\u{U}}
                   9330:   \DeclareUnicodeCharacter{016D}{\u{u}}
                   9331:   \DeclareUnicodeCharacter{016E}{\ringaccent{U}}
                   9332:   \DeclareUnicodeCharacter{016F}{\ringaccent{u}}
                   9333: 
                   9334:   \DeclareUnicodeCharacter{0170}{\H{U}}
                   9335:   \DeclareUnicodeCharacter{0171}{\H{u}}
                   9336:   \DeclareUnicodeCharacter{0174}{\^W}
                   9337:   \DeclareUnicodeCharacter{0175}{\^w}
                   9338:   \DeclareUnicodeCharacter{0176}{\^Y}
                   9339:   \DeclareUnicodeCharacter{0177}{\^y}
                   9340:   \DeclareUnicodeCharacter{0178}{\"Y}
                   9341:   \DeclareUnicodeCharacter{0179}{\'Z}
                   9342:   \DeclareUnicodeCharacter{017A}{\'z}
                   9343:   \DeclareUnicodeCharacter{017B}{\dotaccent{Z}}
                   9344:   \DeclareUnicodeCharacter{017C}{\dotaccent{z}}
                   9345:   \DeclareUnicodeCharacter{017D}{\v{Z}}
                   9346:   \DeclareUnicodeCharacter{017E}{\v{z}}
                   9347: 
                   9348:   \DeclareUnicodeCharacter{01C4}{D\v{Z}}
                   9349:   \DeclareUnicodeCharacter{01C5}{D\v{z}}
                   9350:   \DeclareUnicodeCharacter{01C6}{d\v{z}}
                   9351:   \DeclareUnicodeCharacter{01C7}{LJ}
                   9352:   \DeclareUnicodeCharacter{01C8}{Lj}
                   9353:   \DeclareUnicodeCharacter{01C9}{lj}
                   9354:   \DeclareUnicodeCharacter{01CA}{NJ}
                   9355:   \DeclareUnicodeCharacter{01CB}{Nj}
                   9356:   \DeclareUnicodeCharacter{01CC}{nj}
                   9357:   \DeclareUnicodeCharacter{01CD}{\v{A}}
                   9358:   \DeclareUnicodeCharacter{01CE}{\v{a}}
                   9359:   \DeclareUnicodeCharacter{01CF}{\v{I}}
                   9360: 
                   9361:   \DeclareUnicodeCharacter{01D0}{\v{\dotless{i}}}
                   9362:   \DeclareUnicodeCharacter{01D1}{\v{O}}
                   9363:   \DeclareUnicodeCharacter{01D2}{\v{o}}
                   9364:   \DeclareUnicodeCharacter{01D3}{\v{U}}
                   9365:   \DeclareUnicodeCharacter{01D4}{\v{u}}
                   9366: 
                   9367:   \DeclareUnicodeCharacter{01E2}{\={\AE}}
                   9368:   \DeclareUnicodeCharacter{01E3}{\={\ae}}
                   9369:   \DeclareUnicodeCharacter{01E6}{\v{G}}
                   9370:   \DeclareUnicodeCharacter{01E7}{\v{g}}
                   9371:   \DeclareUnicodeCharacter{01E8}{\v{K}}
                   9372:   \DeclareUnicodeCharacter{01E9}{\v{k}}
                   9373: 
                   9374:   \DeclareUnicodeCharacter{01F0}{\v{\dotless{j}}}
                   9375:   \DeclareUnicodeCharacter{01F1}{DZ}
                   9376:   \DeclareUnicodeCharacter{01F2}{Dz}
                   9377:   \DeclareUnicodeCharacter{01F3}{dz}
                   9378:   \DeclareUnicodeCharacter{01F4}{\'G}
                   9379:   \DeclareUnicodeCharacter{01F5}{\'g}
                   9380:   \DeclareUnicodeCharacter{01F8}{\`N}
                   9381:   \DeclareUnicodeCharacter{01F9}{\`n}
                   9382:   \DeclareUnicodeCharacter{01FC}{\'{\AE}}
                   9383:   \DeclareUnicodeCharacter{01FD}{\'{\ae}}
                   9384:   \DeclareUnicodeCharacter{01FE}{\'{\O}}
                   9385:   \DeclareUnicodeCharacter{01FF}{\'{\o}}
                   9386: 
                   9387:   \DeclareUnicodeCharacter{021E}{\v{H}}
                   9388:   \DeclareUnicodeCharacter{021F}{\v{h}}
                   9389: 
                   9390:   \DeclareUnicodeCharacter{0226}{\dotaccent{A}}
                   9391:   \DeclareUnicodeCharacter{0227}{\dotaccent{a}}
                   9392:   \DeclareUnicodeCharacter{0228}{\cedilla{E}}
                   9393:   \DeclareUnicodeCharacter{0229}{\cedilla{e}}
                   9394:   \DeclareUnicodeCharacter{022E}{\dotaccent{O}}
                   9395:   \DeclareUnicodeCharacter{022F}{\dotaccent{o}}
                   9396: 
                   9397:   \DeclareUnicodeCharacter{0232}{\=Y}
                   9398:   \DeclareUnicodeCharacter{0233}{\=y}
                   9399:   \DeclareUnicodeCharacter{0237}{\dotless{j}}
                   9400: 
                   9401:   \DeclareUnicodeCharacter{02DB}{\ogonek{ }}
                   9402: 
                   9403:   \DeclareUnicodeCharacter{1E02}{\dotaccent{B}}
                   9404:   \DeclareUnicodeCharacter{1E03}{\dotaccent{b}}
                   9405:   \DeclareUnicodeCharacter{1E04}{\udotaccent{B}}
                   9406:   \DeclareUnicodeCharacter{1E05}{\udotaccent{b}}
                   9407:   \DeclareUnicodeCharacter{1E06}{\ubaraccent{B}}
                   9408:   \DeclareUnicodeCharacter{1E07}{\ubaraccent{b}}
                   9409:   \DeclareUnicodeCharacter{1E0A}{\dotaccent{D}}
                   9410:   \DeclareUnicodeCharacter{1E0B}{\dotaccent{d}}
                   9411:   \DeclareUnicodeCharacter{1E0C}{\udotaccent{D}}
                   9412:   \DeclareUnicodeCharacter{1E0D}{\udotaccent{d}}
                   9413:   \DeclareUnicodeCharacter{1E0E}{\ubaraccent{D}}
                   9414:   \DeclareUnicodeCharacter{1E0F}{\ubaraccent{d}}
                   9415: 
                   9416:   \DeclareUnicodeCharacter{1E1E}{\dotaccent{F}}
                   9417:   \DeclareUnicodeCharacter{1E1F}{\dotaccent{f}}
                   9418: 
                   9419:   \DeclareUnicodeCharacter{1E20}{\=G}
                   9420:   \DeclareUnicodeCharacter{1E21}{\=g}
                   9421:   \DeclareUnicodeCharacter{1E22}{\dotaccent{H}}
                   9422:   \DeclareUnicodeCharacter{1E23}{\dotaccent{h}}
                   9423:   \DeclareUnicodeCharacter{1E24}{\udotaccent{H}}
                   9424:   \DeclareUnicodeCharacter{1E25}{\udotaccent{h}}
                   9425:   \DeclareUnicodeCharacter{1E26}{\"H}
                   9426:   \DeclareUnicodeCharacter{1E27}{\"h}
                   9427: 
                   9428:   \DeclareUnicodeCharacter{1E30}{\'K}
                   9429:   \DeclareUnicodeCharacter{1E31}{\'k}
                   9430:   \DeclareUnicodeCharacter{1E32}{\udotaccent{K}}
                   9431:   \DeclareUnicodeCharacter{1E33}{\udotaccent{k}}
                   9432:   \DeclareUnicodeCharacter{1E34}{\ubaraccent{K}}
                   9433:   \DeclareUnicodeCharacter{1E35}{\ubaraccent{k}}
                   9434:   \DeclareUnicodeCharacter{1E36}{\udotaccent{L}}
                   9435:   \DeclareUnicodeCharacter{1E37}{\udotaccent{l}}
                   9436:   \DeclareUnicodeCharacter{1E3A}{\ubaraccent{L}}
                   9437:   \DeclareUnicodeCharacter{1E3B}{\ubaraccent{l}}
                   9438:   \DeclareUnicodeCharacter{1E3E}{\'M}
                   9439:   \DeclareUnicodeCharacter{1E3F}{\'m}
                   9440: 
                   9441:   \DeclareUnicodeCharacter{1E40}{\dotaccent{M}}
                   9442:   \DeclareUnicodeCharacter{1E41}{\dotaccent{m}}
                   9443:   \DeclareUnicodeCharacter{1E42}{\udotaccent{M}}
                   9444:   \DeclareUnicodeCharacter{1E43}{\udotaccent{m}}
                   9445:   \DeclareUnicodeCharacter{1E44}{\dotaccent{N}}
                   9446:   \DeclareUnicodeCharacter{1E45}{\dotaccent{n}}
                   9447:   \DeclareUnicodeCharacter{1E46}{\udotaccent{N}}
                   9448:   \DeclareUnicodeCharacter{1E47}{\udotaccent{n}}
                   9449:   \DeclareUnicodeCharacter{1E48}{\ubaraccent{N}}
                   9450:   \DeclareUnicodeCharacter{1E49}{\ubaraccent{n}}
                   9451: 
                   9452:   \DeclareUnicodeCharacter{1E54}{\'P}
                   9453:   \DeclareUnicodeCharacter{1E55}{\'p}
                   9454:   \DeclareUnicodeCharacter{1E56}{\dotaccent{P}}
                   9455:   \DeclareUnicodeCharacter{1E57}{\dotaccent{p}}
                   9456:   \DeclareUnicodeCharacter{1E58}{\dotaccent{R}}
                   9457:   \DeclareUnicodeCharacter{1E59}{\dotaccent{r}}
                   9458:   \DeclareUnicodeCharacter{1E5A}{\udotaccent{R}}
                   9459:   \DeclareUnicodeCharacter{1E5B}{\udotaccent{r}}
                   9460:   \DeclareUnicodeCharacter{1E5E}{\ubaraccent{R}}
                   9461:   \DeclareUnicodeCharacter{1E5F}{\ubaraccent{r}}
                   9462: 
                   9463:   \DeclareUnicodeCharacter{1E60}{\dotaccent{S}}
                   9464:   \DeclareUnicodeCharacter{1E61}{\dotaccent{s}}
                   9465:   \DeclareUnicodeCharacter{1E62}{\udotaccent{S}}
                   9466:   \DeclareUnicodeCharacter{1E63}{\udotaccent{s}}
                   9467:   \DeclareUnicodeCharacter{1E6A}{\dotaccent{T}}
                   9468:   \DeclareUnicodeCharacter{1E6B}{\dotaccent{t}}
                   9469:   \DeclareUnicodeCharacter{1E6C}{\udotaccent{T}}
                   9470:   \DeclareUnicodeCharacter{1E6D}{\udotaccent{t}}
                   9471:   \DeclareUnicodeCharacter{1E6E}{\ubaraccent{T}}
                   9472:   \DeclareUnicodeCharacter{1E6F}{\ubaraccent{t}}
                   9473: 
                   9474:   \DeclareUnicodeCharacter{1E7C}{\~V}
                   9475:   \DeclareUnicodeCharacter{1E7D}{\~v}
                   9476:   \DeclareUnicodeCharacter{1E7E}{\udotaccent{V}}
                   9477:   \DeclareUnicodeCharacter{1E7F}{\udotaccent{v}}
                   9478: 
                   9479:   \DeclareUnicodeCharacter{1E80}{\`W}
                   9480:   \DeclareUnicodeCharacter{1E81}{\`w}
                   9481:   \DeclareUnicodeCharacter{1E82}{\'W}
                   9482:   \DeclareUnicodeCharacter{1E83}{\'w}
                   9483:   \DeclareUnicodeCharacter{1E84}{\"W}
                   9484:   \DeclareUnicodeCharacter{1E85}{\"w}
                   9485:   \DeclareUnicodeCharacter{1E86}{\dotaccent{W}}
                   9486:   \DeclareUnicodeCharacter{1E87}{\dotaccent{w}}
                   9487:   \DeclareUnicodeCharacter{1E88}{\udotaccent{W}}
                   9488:   \DeclareUnicodeCharacter{1E89}{\udotaccent{w}}
                   9489:   \DeclareUnicodeCharacter{1E8A}{\dotaccent{X}}
                   9490:   \DeclareUnicodeCharacter{1E8B}{\dotaccent{x}}
                   9491:   \DeclareUnicodeCharacter{1E8C}{\"X}
                   9492:   \DeclareUnicodeCharacter{1E8D}{\"x}
                   9493:   \DeclareUnicodeCharacter{1E8E}{\dotaccent{Y}}
                   9494:   \DeclareUnicodeCharacter{1E8F}{\dotaccent{y}}
                   9495: 
                   9496:   \DeclareUnicodeCharacter{1E90}{\^Z}
                   9497:   \DeclareUnicodeCharacter{1E91}{\^z}
                   9498:   \DeclareUnicodeCharacter{1E92}{\udotaccent{Z}}
                   9499:   \DeclareUnicodeCharacter{1E93}{\udotaccent{z}}
                   9500:   \DeclareUnicodeCharacter{1E94}{\ubaraccent{Z}}
                   9501:   \DeclareUnicodeCharacter{1E95}{\ubaraccent{z}}
                   9502:   \DeclareUnicodeCharacter{1E96}{\ubaraccent{h}}
                   9503:   \DeclareUnicodeCharacter{1E97}{\"t}
                   9504:   \DeclareUnicodeCharacter{1E98}{\ringaccent{w}}
                   9505:   \DeclareUnicodeCharacter{1E99}{\ringaccent{y}}
                   9506: 
                   9507:   \DeclareUnicodeCharacter{1EA0}{\udotaccent{A}}
                   9508:   \DeclareUnicodeCharacter{1EA1}{\udotaccent{a}}
                   9509: 
                   9510:   \DeclareUnicodeCharacter{1EB8}{\udotaccent{E}}
                   9511:   \DeclareUnicodeCharacter{1EB9}{\udotaccent{e}}
                   9512:   \DeclareUnicodeCharacter{1EBC}{\~E}
                   9513:   \DeclareUnicodeCharacter{1EBD}{\~e}
                   9514: 
                   9515:   \DeclareUnicodeCharacter{1ECA}{\udotaccent{I}}
                   9516:   \DeclareUnicodeCharacter{1ECB}{\udotaccent{i}}
                   9517:   \DeclareUnicodeCharacter{1ECC}{\udotaccent{O}}
                   9518:   \DeclareUnicodeCharacter{1ECD}{\udotaccent{o}}
                   9519: 
                   9520:   \DeclareUnicodeCharacter{1EE4}{\udotaccent{U}}
                   9521:   \DeclareUnicodeCharacter{1EE5}{\udotaccent{u}}
                   9522: 
                   9523:   \DeclareUnicodeCharacter{1EF2}{\`Y}
                   9524:   \DeclareUnicodeCharacter{1EF3}{\`y}
                   9525:   \DeclareUnicodeCharacter{1EF4}{\udotaccent{Y}}
                   9526: 
                   9527:   \DeclareUnicodeCharacter{1EF8}{\~Y}
                   9528:   \DeclareUnicodeCharacter{1EF9}{\~y}
                   9529: 
                   9530:   \DeclareUnicodeCharacter{2013}{--}
                   9531:   \DeclareUnicodeCharacter{2014}{---}
                   9532:   \DeclareUnicodeCharacter{2018}{\quoteleft}
                   9533:   \DeclareUnicodeCharacter{2019}{\quoteright}
                   9534:   \DeclareUnicodeCharacter{201A}{\quotesinglbase}
                   9535:   \DeclareUnicodeCharacter{201C}{\quotedblleft}
                   9536:   \DeclareUnicodeCharacter{201D}{\quotedblright}
                   9537:   \DeclareUnicodeCharacter{201E}{\quotedblbase}
                   9538:   \DeclareUnicodeCharacter{2022}{\bullet}
                   9539:   \DeclareUnicodeCharacter{2026}{\dots}
                   9540:   \DeclareUnicodeCharacter{2039}{\guilsinglleft}
                   9541:   \DeclareUnicodeCharacter{203A}{\guilsinglright}
                   9542:   \DeclareUnicodeCharacter{20AC}{\euro}
                   9543: 
                   9544:   \DeclareUnicodeCharacter{2192}{\expansion}
                   9545:   \DeclareUnicodeCharacter{21D2}{\result}
                   9546: 
                   9547:   \DeclareUnicodeCharacter{2212}{\minus}
                   9548:   \DeclareUnicodeCharacter{2217}{\point}
                   9549:   \DeclareUnicodeCharacter{2261}{\equiv}
                   9550: }% end of \utfeightchardefs
                   9551: 
                   9552: 
                   9553: % US-ASCII character definitions.
                   9554: \def\asciichardefs{% nothing need be done
                   9555:    \relax
                   9556: }
                   9557: 
                   9558: % Make non-ASCII characters printable again for compatibility with
                   9559: % existing Texinfo documents that may use them, even without declaring a
                   9560: % document encoding.
                   9561: %
                   9562: \setnonasciicharscatcode \other
                   9563: 
                   9564: 
                   9565: \message{formatting,}
                   9566: 
                   9567: \newdimen\defaultparindent \defaultparindent = 15pt
                   9568: 
                   9569: \chapheadingskip = 15pt plus 4pt minus 2pt
                   9570: \secheadingskip = 12pt plus 3pt minus 2pt
                   9571: \subsecheadingskip = 9pt plus 2pt minus 2pt
                   9572: 
                   9573: % Prevent underfull vbox error messages.
                   9574: \vbadness = 10000
                   9575: 
1.1.1.2   misho    9576: % Don't be very finicky about underfull hboxes, either.
                   9577: \hbadness = 6666
1.1       misho    9578: 
                   9579: % Following George Bush, get rid of widows and orphans.
                   9580: \widowpenalty=10000
                   9581: \clubpenalty=10000
                   9582: 
                   9583: % Use TeX 3.0's \emergencystretch to help line breaking, but if we're
                   9584: % using an old version of TeX, don't do anything.  We want the amount of
                   9585: % stretch added to depend on the line length, hence the dependence on
                   9586: % \hsize.  We call this whenever the paper size is set.
                   9587: %
                   9588: \def\setemergencystretch{%
                   9589:   \ifx\emergencystretch\thisisundefined
                   9590:     % Allow us to assign to \emergencystretch anyway.
                   9591:     \def\emergencystretch{\dimen0}%
                   9592:   \else
                   9593:     \emergencystretch = .15\hsize
                   9594:   \fi
                   9595: }
                   9596: 
                   9597: % Parameters in order: 1) textheight; 2) textwidth;
                   9598: % 3) voffset; 4) hoffset; 5) binding offset; 6) topskip;
                   9599: % 7) physical page height; 8) physical page width.
                   9600: %
                   9601: % We also call \setleading{\textleading}, so the caller should define
                   9602: % \textleading.  The caller should also set \parskip.
                   9603: %
                   9604: \def\internalpagesizes#1#2#3#4#5#6#7#8{%
                   9605:   \voffset = #3\relax
                   9606:   \topskip = #6\relax
                   9607:   \splittopskip = \topskip
                   9608:   %
                   9609:   \vsize = #1\relax
                   9610:   \advance\vsize by \topskip
                   9611:   \outervsize = \vsize
                   9612:   \advance\outervsize by 2\topandbottommargin
                   9613:   \pageheight = \vsize
                   9614:   %
                   9615:   \hsize = #2\relax
                   9616:   \outerhsize = \hsize
                   9617:   \advance\outerhsize by 0.5in
                   9618:   \pagewidth = \hsize
                   9619:   %
                   9620:   \normaloffset = #4\relax
                   9621:   \bindingoffset = #5\relax
                   9622:   %
                   9623:   \ifpdf
                   9624:     \pdfpageheight #7\relax
                   9625:     \pdfpagewidth #8\relax
                   9626:     % if we don't reset these, they will remain at "1 true in" of
                   9627:     % whatever layout pdftex was dumped with.
                   9628:     \pdfhorigin = 1 true in
                   9629:     \pdfvorigin = 1 true in
                   9630:   \fi
                   9631:   %
                   9632:   \setleading{\textleading}
                   9633:   %
                   9634:   \parindent = \defaultparindent
                   9635:   \setemergencystretch
                   9636: }
                   9637: 
                   9638: % @letterpaper (the default).
                   9639: \def\letterpaper{{\globaldefs = 1
                   9640:   \parskip = 3pt plus 2pt minus 1pt
                   9641:   \textleading = 13.2pt
                   9642:   %
                   9643:   % If page is nothing but text, make it come out even.
                   9644:   \internalpagesizes{607.2pt}{6in}% that's 46 lines
                   9645:                     {\voffset}{.25in}%
                   9646:                     {\bindingoffset}{36pt}%
                   9647:                     {11in}{8.5in}%
                   9648: }}
                   9649: 
                   9650: % Use @smallbook to reset parameters for 7x9.25 trim size.
                   9651: \def\smallbook{{\globaldefs = 1
                   9652:   \parskip = 2pt plus 1pt
                   9653:   \textleading = 12pt
                   9654:   %
                   9655:   \internalpagesizes{7.5in}{5in}%
                   9656:                     {-.2in}{0in}%
                   9657:                     {\bindingoffset}{16pt}%
                   9658:                     {9.25in}{7in}%
                   9659:   %
                   9660:   \lispnarrowing = 0.3in
                   9661:   \tolerance = 700
                   9662:   \hfuzz = 1pt
                   9663:   \contentsrightmargin = 0pt
                   9664:   \defbodyindent = .5cm
                   9665: }}
                   9666: 
                   9667: % Use @smallerbook to reset parameters for 6x9 trim size.
                   9668: % (Just testing, parameters still in flux.)
                   9669: \def\smallerbook{{\globaldefs = 1
                   9670:   \parskip = 1.5pt plus 1pt
                   9671:   \textleading = 12pt
                   9672:   %
                   9673:   \internalpagesizes{7.4in}{4.8in}%
                   9674:                     {-.2in}{-.4in}%
                   9675:                     {0pt}{14pt}%
                   9676:                     {9in}{6in}%
                   9677:   %
                   9678:   \lispnarrowing = 0.25in
                   9679:   \tolerance = 700
                   9680:   \hfuzz = 1pt
                   9681:   \contentsrightmargin = 0pt
                   9682:   \defbodyindent = .4cm
                   9683: }}
                   9684: 
                   9685: % Use @afourpaper to print on European A4 paper.
                   9686: \def\afourpaper{{\globaldefs = 1
                   9687:   \parskip = 3pt plus 2pt minus 1pt
                   9688:   \textleading = 13.2pt
                   9689:   %
                   9690:   % Double-side printing via postscript on Laserjet 4050
                   9691:   % prints double-sided nicely when \bindingoffset=10mm and \hoffset=-6mm.
                   9692:   % To change the settings for a different printer or situation, adjust
                   9693:   % \normaloffset until the front-side and back-side texts align.  Then
                   9694:   % do the same for \bindingoffset.  You can set these for testing in
                   9695:   % your texinfo source file like this:
                   9696:   % @tex
                   9697:   % \global\normaloffset = -6mm
                   9698:   % \global\bindingoffset = 10mm
                   9699:   % @end tex
                   9700:   \internalpagesizes{673.2pt}{160mm}% that's 51 lines
                   9701:                     {\voffset}{\hoffset}%
                   9702:                     {\bindingoffset}{44pt}%
                   9703:                     {297mm}{210mm}%
                   9704:   %
                   9705:   \tolerance = 700
                   9706:   \hfuzz = 1pt
                   9707:   \contentsrightmargin = 0pt
                   9708:   \defbodyindent = 5mm
                   9709: }}
                   9710: 
                   9711: % Use @afivepaper to print on European A5 paper.
                   9712: % From romildo@urano.iceb.ufop.br, 2 July 2000.
                   9713: % He also recommends making @example and @lisp be small.
                   9714: \def\afivepaper{{\globaldefs = 1
                   9715:   \parskip = 2pt plus 1pt minus 0.1pt
                   9716:   \textleading = 12.5pt
                   9717:   %
                   9718:   \internalpagesizes{160mm}{120mm}%
                   9719:                     {\voffset}{\hoffset}%
                   9720:                     {\bindingoffset}{8pt}%
                   9721:                     {210mm}{148mm}%
                   9722:   %
                   9723:   \lispnarrowing = 0.2in
                   9724:   \tolerance = 800
                   9725:   \hfuzz = 1.2pt
                   9726:   \contentsrightmargin = 0pt
                   9727:   \defbodyindent = 2mm
                   9728:   \tableindent = 12mm
                   9729: }}
                   9730: 
                   9731: % A specific text layout, 24x15cm overall, intended for A4 paper.
                   9732: \def\afourlatex{{\globaldefs = 1
                   9733:   \afourpaper
                   9734:   \internalpagesizes{237mm}{150mm}%
                   9735:                     {\voffset}{4.6mm}%
                   9736:                     {\bindingoffset}{7mm}%
                   9737:                     {297mm}{210mm}%
                   9738:   %
                   9739:   % Must explicitly reset to 0 because we call \afourpaper.
                   9740:   \globaldefs = 0
                   9741: }}
                   9742: 
                   9743: % Use @afourwide to print on A4 paper in landscape format.
                   9744: \def\afourwide{{\globaldefs = 1
                   9745:   \afourpaper
                   9746:   \internalpagesizes{241mm}{165mm}%
                   9747:                     {\voffset}{-2.95mm}%
                   9748:                     {\bindingoffset}{7mm}%
                   9749:                     {297mm}{210mm}%
                   9750:   \globaldefs = 0
                   9751: }}
                   9752: 
                   9753: % @pagesizes TEXTHEIGHT[,TEXTWIDTH]
                   9754: % Perhaps we should allow setting the margins, \topskip, \parskip,
                   9755: % and/or leading, also. Or perhaps we should compute them somehow.
                   9756: %
                   9757: \parseargdef\pagesizes{\pagesizesyyy #1,,\finish}
                   9758: \def\pagesizesyyy#1,#2,#3\finish{{%
                   9759:   \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi
                   9760:   \globaldefs = 1
                   9761:   %
                   9762:   \parskip = 3pt plus 2pt minus 1pt
                   9763:   \setleading{\textleading}%
                   9764:   %
                   9765:   \dimen0 = #1\relax
                   9766:   \advance\dimen0 by \voffset
                   9767:   %
                   9768:   \dimen2 = \hsize
                   9769:   \advance\dimen2 by \normaloffset
                   9770:   %
                   9771:   \internalpagesizes{#1}{\hsize}%
                   9772:                     {\voffset}{\normaloffset}%
                   9773:                     {\bindingoffset}{44pt}%
                   9774:                     {\dimen0}{\dimen2}%
                   9775: }}
                   9776: 
                   9777: % Set default to letter.
                   9778: %
                   9779: \letterpaper
                   9780: 
                   9781: 
                   9782: \message{and turning on texinfo input format.}
                   9783: 
1.1.1.2   misho    9784: \def^^L{\par} % remove \outer, so ^L can appear in an @comment
                   9785: 
1.1       misho    9786: % DEL is a comment character, in case @c does not suffice.
                   9787: \catcode`\^^? = 14
                   9788: 
                   9789: % Define macros to output various characters with catcode for normal text.
1.1.1.2   misho    9790: \catcode`\"=\other \def\normaldoublequote{"}
                   9791: \catcode`\$=\other \def\normaldollar{$}%$ font-lock fix
                   9792: \catcode`\+=\other \def\normalplus{+}
                   9793: \catcode`\<=\other \def\normalless{<}
                   9794: \catcode`\>=\other \def\normalgreater{>}
                   9795: \catcode`\^=\other \def\normalcaret{^}
                   9796: \catcode`\_=\other \def\normalunderscore{_}
                   9797: \catcode`\|=\other \def\normalverticalbar{|}
                   9798: \catcode`\~=\other \def\normaltilde{~}
1.1       misho    9799: 
                   9800: % This macro is used to make a character print one way in \tt
                   9801: % (where it can probably be output as-is), and another way in other fonts,
                   9802: % where something hairier probably needs to be done.
                   9803: %
                   9804: % #1 is what to print if we are indeed using \tt; #2 is what to print
                   9805: % otherwise.  Since all the Computer Modern typewriter fonts have zero
                   9806: % interword stretch (and shrink), and it is reasonable to expect all
                   9807: % typewriter fonts to have this, we can check that font parameter.
                   9808: %
                   9809: \def\ifusingtt#1#2{\ifdim \fontdimen3\font=0pt #1\else #2\fi}
                   9810: 
                   9811: % Same as above, but check for italic font.  Actually this also catches
                   9812: % non-italic slanted fonts since it is impossible to distinguish them from
                   9813: % italic fonts.  But since this is only used by $ and it uses \sl anyway
                   9814: % this is not a problem.
                   9815: \def\ifusingit#1#2{\ifdim \fontdimen1\font>0pt #1\else #2\fi}
                   9816: 
                   9817: % Turn off all special characters except @
                   9818: % (and those which the user can use as if they were ordinary).
                   9819: % Most of these we simply print from the \tt font, but for some, we can
                   9820: % use math or other variants that look better in normal text.
                   9821: 
                   9822: \catcode`\"=\active
                   9823: \def\activedoublequote{{\tt\char34}}
                   9824: \let"=\activedoublequote
                   9825: \catcode`\~=\active
                   9826: \def~{{\tt\char126}}
                   9827: \chardef\hat=`\^
                   9828: \catcode`\^=\active
                   9829: \def^{{\tt \hat}}
                   9830: 
                   9831: \catcode`\_=\active
                   9832: \def_{\ifusingtt\normalunderscore\_}
                   9833: \let\realunder=_
                   9834: % Subroutine for the previous macro.
                   9835: \def\_{\leavevmode \kern.07em \vbox{\hrule width.3em height.1ex}\kern .07em }
                   9836: 
                   9837: \catcode`\|=\active
                   9838: \def|{{\tt\char124}}
                   9839: \chardef \less=`\<
                   9840: \catcode`\<=\active
                   9841: \def<{{\tt \less}}
                   9842: \chardef \gtr=`\>
                   9843: \catcode`\>=\active
                   9844: \def>{{\tt \gtr}}
                   9845: \catcode`\+=\active
                   9846: \def+{{\tt \char 43}}
                   9847: \catcode`\$=\active
                   9848: \def${\ifusingit{{\sl\$}}\normaldollar}%$ font-lock fix
                   9849: 
                   9850: % If a .fmt file is being used, characters that might appear in a file
                   9851: % name cannot be active until we have parsed the command line.
                   9852: % So turn them off again, and have \everyjob (or @setfilename) turn them on.
                   9853: % \otherifyactive is called near the end of this file.
                   9854: \def\otherifyactive{\catcode`+=\other \catcode`\_=\other}
                   9855: 
                   9856: % Used sometimes to turn off (effectively) the active characters even after
                   9857: % parsing them.
                   9858: \def\turnoffactive{%
                   9859:   \normalturnoffactive
                   9860:   \otherbackslash
                   9861: }
                   9862: 
                   9863: \catcode`\@=0
                   9864: 
                   9865: % \backslashcurfont outputs one backslash character in current font,
                   9866: % as in \char`\\.
                   9867: \global\chardef\backslashcurfont=`\\
                   9868: \global\let\rawbackslashxx=\backslashcurfont  % let existing .??s files work
                   9869: 
                   9870: % \realbackslash is an actual character `\' with catcode other, and
                   9871: % \doublebackslash is two of them (for the pdf outlines).
                   9872: {\catcode`\\=\other @gdef@realbackslash{\} @gdef@doublebackslash{\\}}
                   9873: 
                   9874: % In texinfo, backslash is an active character; it prints the backslash
                   9875: % in fixed width font.
1.1.1.3 ! misho    9876: \catcode`\\=\active  % @ for escape char from now on.
        !          9877: 
        !          9878: % The story here is that in math mode, the \char of \backslashcurfont
        !          9879: % ends up printing the roman \ from the math symbol font (because \char
        !          9880: % in math mode uses the \mathcode, and plain.tex sets
        !          9881: % \mathcode`\\="026E).  It seems better for @backslashchar{} to always
        !          9882: % print a typewriter backslash, hence we use an explicit \mathchar,
        !          9883: % which is the decimal equivalent of "715c (class 7, e.g., use \fam;
        !          9884: % ignored family value; char position "5C).  We can't use " for the
        !          9885: % usual hex value because it has already been made active.
        !          9886: @def@normalbackslash{{@tt @ifmmode @mathchar29020 @else @backslashcurfont @fi}}
        !          9887: @let@backslashchar = @normalbackslash % @backslashchar{} is for user documents.
        !          9888: 
1.1       misho    9889: % On startup, @fixbackslash assigns:
                   9890: %  @let \ = @normalbackslash
                   9891: % \rawbackslash defines an active \ to do \backslashcurfont.
                   9892: % \otherbackslash defines an active \ to be a literal `\' character with
1.1.1.3 ! misho    9893: % catcode other.  We switch back and forth between these.
1.1       misho    9894: @gdef@rawbackslash{@let\=@backslashcurfont}
                   9895: @gdef@otherbackslash{@let\=@realbackslash}
                   9896: 
                   9897: % Same as @turnoffactive except outputs \ as {\tt\char`\\} instead of
                   9898: % the literal character `\'.
                   9899: %
                   9900: @def@normalturnoffactive{%
                   9901:   @let"=@normaldoublequote
1.1.1.2   misho    9902:   @let$=@normaldollar %$ font-lock fix
                   9903:   @let+=@normalplus
                   9904:   @let<=@normalless
                   9905:   @let>=@normalgreater
                   9906:   @let\=@normalbackslash
1.1       misho    9907:   @let^=@normalcaret
                   9908:   @let_=@normalunderscore
                   9909:   @let|=@normalverticalbar
1.1.1.2   misho    9910:   @let~=@normaltilde
1.1       misho    9911:   @markupsetuplqdefault
                   9912:   @markupsetuprqdefault
                   9913:   @unsepspaces
                   9914: }
                   9915: 
                   9916: % Make _ and + \other characters, temporarily.
                   9917: % This is canceled by @fixbackslash.
                   9918: @otherifyactive
                   9919: 
                   9920: % If a .fmt file is being used, we don't want the `\input texinfo' to show up.
                   9921: % That is what \eatinput is for; after that, the `\' should revert to printing
                   9922: % a backslash.
                   9923: %
                   9924: @gdef@eatinput input texinfo{@fixbackslash}
                   9925: @global@let\ = @eatinput
                   9926: 
                   9927: % On the other hand, perhaps the file did not have a `\input texinfo'. Then
                   9928: % the first `\' in the file would cause an error. This macro tries to fix
                   9929: % that, assuming it is called before the first `\' could plausibly occur.
                   9930: % Also turn back on active characters that might appear in the input
                   9931: % file name, in case not using a pre-dumped format.
                   9932: %
                   9933: @gdef@fixbackslash{%
                   9934:   @ifx\@eatinput @let\ = @normalbackslash @fi
                   9935:   @catcode`+=@active
                   9936:   @catcode`@_=@active
                   9937: }
                   9938: 
                   9939: % Say @foo, not \foo, in error messages.
                   9940: @escapechar = `@@
                   9941: 
1.1.1.2   misho    9942: % These (along with & and #) are made active for url-breaking, so need
                   9943: % active definitions as the normal characters.
                   9944: @def@normaldot{.}
                   9945: @def@normalquest{?}
                   9946: @def@normalslash{/}
                   9947: 
1.1       misho    9948: % These look ok in all fonts, so just make them not special.
1.1.1.3 ! misho    9949: % @hashchar{} gets its own user-level command, because of #line.
1.1.1.2   misho    9950: @catcode`@& = @other @def@normalamp{&}
                   9951: @catcode`@# = @other @def@normalhash{#}
                   9952: @catcode`@% = @other @def@normalpercent{%}
1.1       misho    9953: 
1.1.1.3 ! misho    9954: @let @hashchar = @normalhash
        !          9955: 
1.1       misho    9956: @c Finally, make ` and ' active, so that txicodequoteundirected and
                   9957: @c txicodequotebacktick work right in, e.g., @w{@code{`foo'}}.  If we
                   9958: @c don't make ` and ' active, @code will not get them as active chars.
                   9959: @c Do this last of all since we use ` in the previous @catcode assignments.
                   9960: @catcode`@'=@active
                   9961: @catcode`@`=@active
                   9962: @markupsetuplqdefault
                   9963: @markupsetuprqdefault
                   9964: 
                   9965: @c Local variables:
                   9966: @c eval: (add-hook 'write-file-hooks 'time-stamp)
                   9967: @c page-delimiter: "^\\\\message"
                   9968: @c time-stamp-start: "def\\\\texinfoversion{"
                   9969: @c time-stamp-format: "%:y-%02m-%02d.%02H"
                   9970: @c time-stamp-end: "}"
                   9971: @c End:
                   9972: 
                   9973: @c vim:sw=2:
                   9974: 
                   9975: @ignore
                   9976:    arch-tag: e1b36e32-c96e-4135-a41a-0b2efa2ea115
                   9977: @end ignore

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