Annotation of embedaddon/libxml2/test/valid/dtds/xmlspec.dtd, revision 1.1

1.1     ! misho       1: <!-- ............................................................... -->
        !             2: <!-- XML specification DTD ......................................... -->
        !             3: <!-- ............................................................... -->
        !             4: 
        !             5: <!--
        !             6: TYPICAL INVOCATION:
        !             7: #  <!DOCTYPE spec PUBLIC
        !             8: #       "-//W3C//DTD Specification::19980521//EN"
        !             9: #       "http://www.w3.org/XML/1998/06/xmlspec-19980521.dtd">
        !            10: 
        !            11: PURPOSE:
        !            12:   This DTD was developed for use with the XML family of W3C
        !            13:   specifications.  It is an XML-compliant DTD based in part on
        !            14:   the TEI Lite and Sweb DTDs.
        !            15: 
        !            16: DEPENDENCIES:
        !            17:   None.
        !            18: 
        !            19: CHANGE HISTORY:
        !            20:   The list of changes is at the end of the DTD.
        !            21: 
        !            22:   For all details, see the design report at:
        !            23: 
        !            24: #   <http://www.w3.org/XML/1998/06/xmlspec-report-19980521.htm>
        !            25: 
        !            26:   The "typical invocation" FPI always gets updated to reflect the
        !            27:   date of the most recent changes.
        !            28: 
        !            29:   Search this file for "#" in the first column to see change history
        !            30:   comments.
        !            31: 
        !            32: MAINTAINER:
        !            33:   Eve Maler
        !            34:   ArborText Inc.
        !            35:   elm@arbortext.com
        !            36:   voice: +1 781 270 5750
        !            37:   fax:   +1 781 273 3760
        !            38: -->
        !            39: 
        !            40: <!-- ............................................................... -->
        !            41: <!-- Entities for characters and symbols ........................... -->
        !            42: 
        !            43: <!--
        !            44: #1998-03-10: maler: Added &ldquo; and &rdquo;.
        !            45: #                   Used 8879:1986-compatible decimal character
        !            46: #                   references.
        !            47: #                   Merged charent.mod file back into main file.
        !            48: #1998-05-14: maler: Fixed ldquo and rdquo.  Gave mdash a real number.
        !            49: -->
        !            50: 
        !            51: <!ENTITY lt     "&#38;#60;">
        !            52: <!ENTITY gt     "&#62;">
        !            53: <!ENTITY amp    "&#38;#38;">
        !            54: <!ENTITY apos   "&#39;">
        !            55: <!ENTITY quot   "&#34;">
        !            56: <!ENTITY nbsp   "&#160;">
        !            57: <!--
        !            58: <!ENTITY mdash  "&#x2014;">
        !            59: <!ENTITY ldquo  "&#x201C;">
        !            60: <!ENTITY rdquo  "&#x201D;">
        !            61: -->
        !            62: 
        !            63: <!-- ............................................................... -->
        !            64: <!-- Entities for classes of standalone elements ................... -->
        !            65: 
        !            66: <!--
        !            67: #1997-10-16: maler: Added table to %illus.class;.
        !            68: #1997-11-28: maler: Added htable to %illus.class;.
        !            69: #1997-12-29: maler: IGNOREd table.
        !            70: #1998-03-10: maler: Removed SGML Open-specific %illus.class;.
        !            71: #                   Added "local" entities for customization.
        !            72: #1998-05-14: maler: Added issue to %note.class;.
        !            73: #                   Removed %[local.]statusp.class;.
        !            74: #1998-05-21: maler: Added constraintnote to %note.class;.
        !            75: -->
        !            76: 
        !            77: <!ENTITY % local.p.class        "">
        !            78: <!ENTITY % p.class              "p
        !            79:                                 %local.p.class;">
        !            80: 
        !            81: <!ENTITY % local.list.class     "">
        !            82: <!ENTITY % list.class           "ulist|olist|slist|glist
        !            83:                                 %local.list.class;">
        !            84: 
        !            85: <!ENTITY % local.speclist.class "">
        !            86: <!ENTITY % speclist.class       "orglist|blist
        !            87:                                 %local.speclist.class;">
        !            88: 
        !            89: <!ENTITY % local.note.class     "">
        !            90: <!ENTITY % note.class           "note|issue|wfcnote|vcnote
        !            91:                                 |constraintnote %local.note.class;">
        !            92: 
        !            93: <!ENTITY % local.illus.class    "">
        !            94: <!ENTITY % illus.class          "eg|graphic|scrap|htable
        !            95:                                 %local.illus.class;">
        !            96: 
        !            97: <!-- ............................................................... -->
        !            98: <!-- Entities for classes of phrase-level elements ................. -->
        !            99: 
        !           100: <!--
        !           101: #1997-12-29: maler: Added xspecref to %ref.class;.
        !           102: #1998-03-10: maler: Added %ednote.class;.
        !           103: #                   Added "local" entities for customization.
        !           104: -->
        !           105: 
        !           106: <!ENTITY % local.annot.class    "">
        !           107: <!ENTITY % annot.class          "footnote
        !           108:                                 %local.annot.class;">
        !           109: 
        !           110: <!ENTITY % local.termdef.class    "">
        !           111: <!ENTITY % termdef.class        "termdef|term
        !           112:                                 %local.termdef.class;">
        !           113: 
        !           114: <!ENTITY % local.emph.class    "">
        !           115: <!ENTITY % emph.class           "emph|quote
        !           116:                                 %local.emph.class;">
        !           117: 
        !           118: <!ENTITY % local.ref.class    "">
        !           119: <!ENTITY % ref.class            "bibref|specref|termref|titleref
        !           120:                                 |xspecref|xtermref
        !           121:                                 %local.ref.class;">
        !           122: 
        !           123: <!ENTITY % local.loc.class    "">
        !           124: <!ENTITY % loc.class            "loc
        !           125:                                 %local.loc.class;">
        !           126: 
        !           127: <!ENTITY % local.tech.class    "">
        !           128: <!ENTITY % tech.class           "kw|nt|xnt|code
        !           129:                                 %local.tech.class;">
        !           130: 
        !           131: <!ENTITY % local.ednote.class    "">
        !           132: <!ENTITY % ednote.class         "ednote
        !           133:                                 %local.ednote.class;">
        !           134: 
        !           135: <!-- ............................................................... -->
        !           136: <!-- Entities for mixtures of standalone elements .................. -->
        !           137: 
        !           138: <!--
        !           139: #1997-09-30: maler: Created %p.mix; to eliminate p from self.
        !           140: #1997-09-30: maler: Added %speclist.class; to %obj.mix; and %p.mix;.
        !           141: #1997-09-30: maler: Added %note.class; to %obj.mix; and %p.mix;.
        !           142: #1997-10-16: maler: Created %entry.mix;.  Note that some elements
        !           143: #                   left out here are still allowed in termdef,
        !           144: #                   which entry can contain through %p.pcd.mix;.
        !           145: #1997-11-28: maler: Added %p.class; to %statusobj.mix;.
        !           146: #1998-03-10: maler: Added %ednote.class; to all mixtures, except
        !           147: #                   %p.mix; and %statusobj.mix;, because paragraphs
        !           148: #                   and status paragraphs will contain ednote
        !           149: #                   through %p.pcd.mix;.
        !           150: #1998-03-23: maler: Added %termdef.mix; (broken out from
        !           151: #                    %termdef.pcd.mix;).
        !           152: #1998-05-14: maler: Removed %statusobj.mix; and all mentions of
        !           153: #                   %statusp.mix;.
        !           154: -->
        !           155: 
        !           156: <!ENTITY % div.mix
        !           157:         "%p.class;|%list.class;|%speclist.class;|%note.class;
        !           158:         |%illus.class;|%ednote.class;">
        !           159: <!ENTITY % obj.mix
        !           160:         "%p.class;|%list.class;|%speclist.class;|%note.class;
        !           161:         |%illus.class;|%ednote.class;">
        !           162: <!ENTITY % p.mix
        !           163:         "%list.class;|%speclist.class;|%note.class;|%illus.class;">
        !           164: <!ENTITY % entry.mix
        !           165:         "%list.class;|note|eg|graphic|%ednote.class;">
        !           166: <!ENTITY % hdr.mix
        !           167:         "%p.class;|%list.class;|%ednote.class;">
        !           168: <!ENTITY % termdef.mix
        !           169:         "%note.class;|%illus.class;">
        !           170: 
        !           171: <!-- ............................................................... -->
        !           172: <!-- Entities for mixtures of #PCDATA and phrase-level elements .... -->
        !           173: 
        !           174: <!--    Note that %termdef.pcd.mix contains %note.class;
        !           175:         and %illus.class;, considered standalone elements. -->
        !           176: 
        !           177: <!--
        !           178: #1997-09-30: maler: Added scrap and %note.class; to %termdef.pcd.mix;.
        !           179: #1997-11-28: maler: Added %loc.class; to %p.pcd.mix;.
        !           180: #1998-03-10: maler: Added %ednote.class; to all mixtures.
        !           181: #1998-03-23: maler: Moved some %termdef.pcd.mix; stuff out to
        !           182: #                   %termdef.mix;.
        !           183: #1998-05-14: maler: Removed %statusp.pcd.mix;.
        !           184: #1998-05-21: maler: Added constraint element to %eg.pcd.mix;.
        !           185: -->
        !           186: 
        !           187: <!ENTITY % p.pcd.mix
        !           188:         "#PCDATA|%annot.class;|%termdef.class;|%emph.class;
        !           189:         |%ref.class;|%tech.class;|%loc.class;|%ednote.class;">
        !           190: <!ENTITY % head.pcd.mix
        !           191:         "#PCDATA|%annot.class;|%emph.class;|%tech.class;|%ednote.class;">
        !           192: <!ENTITY % label.pcd.mix
        !           193:         "#PCDATA|%annot.class;|%termdef.class;|%emph.class;|%tech.class;
        !           194:         |%ednote.class;">
        !           195: <!ENTITY % eg.pcd.mix
        !           196:         "#PCDATA|%annot.class;|%emph.class;|%ednote.class;|constraint">
        !           197: <!ENTITY % termdef.pcd.mix
        !           198:         "#PCDATA|term|%emph.class;|%ref.class;|%tech.class;
        !           199:         |%ednote.class;">
        !           200: <!ENTITY % bibl.pcd.mix
        !           201:         "#PCDATA|%emph.class;|%ref.class;|%loc.class;|%ednote.class;">
        !           202: <!ENTITY % tech.pcd.mix
        !           203:         "#PCDATA|%ednote.class;">
        !           204: <!ENTITY % loc.pcd.mix
        !           205:         "#PCDATA|%loc.class;|%ednote.class;">
        !           206: 
        !           207: <!-- ............................................................... -->
        !           208: <!-- Entities for customizable content models ...................... -->
        !           209: 
        !           210: <!--
        !           211: #1998-03-10: maler: Added customization entities.
        !           212: #1998-05-14: maler: Allowed prevlocs and latestloc in either order.
        !           213: -->
        !           214: 
        !           215: <!ENTITY % spec.mdl
        !           216:         "header, front?, body, back?">
        !           217: 
        !           218: <!ENTITY % header.mdl
        !           219:         "title, subtitle?, version, w3c-designation, w3c-doctype,
        !           220:         pubdate, notice*, publoc, ((prevlocs, latestloc?) |
        !           221:         (latestloc, prevlocs?))?, authlist, status, abstract,
        !           222:         pubstmt?, sourcedesc?, langusage, revisiondesc">
        !           223: 
        !           224: <!ENTITY % pubdate.mdl
        !           225:         "day?, month, year">
        !           226: 
        !           227: <!-- ............................................................... -->
        !           228: <!-- Entities for common attributes ................................ -->
        !           229: 
        !           230: <!--    key attribute:
        !           231:         Optionally provides a sorting or indexing key, for cases when
        !           232:         the element content is inappropriate for this purpose. -->
        !           233: <!ENTITY % key.att
        !           234:         'key                    CDATA           #IMPLIED'>
        !           235: 
        !           236: <!--    def attribute:
        !           237:         Points to the element where the relevant definition can be
        !           238:         found, using the IDREF mechanism.  %def.att; is for optional
        !           239:         def attributes, and %def-req.att; is for required def
        !           240:         attributes. -->
        !           241: <!ENTITY % def.att
        !           242:         'def                    IDREF           #IMPLIED'>
        !           243: <!ENTITY % def-req.att
        !           244:         'def                    IDREF           #REQUIRED'>
        !           245: 
        !           246: <!--    ref attribute:
        !           247:         Points to the element where more information can be found,
        !           248:         using the IDREF mechanism.  %ref.att; is for optional
        !           249:         ref attributes, and %ref-req.att; is for required ref
        !           250:         attributes. -->
        !           251: <!ENTITY % ref.att
        !           252:         'ref                    IDREF           #IMPLIED'>
        !           253: <!ENTITY % ref-req.att
        !           254:         'ref                    IDREF           #REQUIRED'>
        !           255: 
        !           256: <!--
        !           257: #1998-03-23: maler: Added show and actuate attributes to href.
        !           258: #                   Added semi-common xml:space attribute.
        !           259: -->
        !           260: 
        !           261: <!--    HREF and source attributes:
        !           262:         Points to the element where more information or source data
        !           263:         can be found, using the URL (XLL simple link) mechanism.
        !           264:         For some purposes, is associated with additional XLL
        !           265:         attributes. %href.att; is for optional HREF attributes,
        !           266:         and %href-req.att; is for required HREF attributes.
        !           267:         %source-req.att; is for the source attribute, which
        !           268:         is always required. -->
        !           269: <!ENTITY % href.att
        !           270:         'xml:link               CDATA           #FIXED "simple"
        !           271:         href                    CDATA           #IMPLIED
        !           272:         show                    CDATA           #FIXED "embed"
        !           273:         actuate                 CDATA           #FIXED "auto"'>
        !           274: 
        !           275: <!ENTITY % href-req.att
        !           276:         'xml:link               CDATA           #FIXED "simple"
        !           277:         href                    CDATA           #REQUIRED
        !           278:         show                    CDATA           #FIXED "embed"
        !           279:         actuate                 CDATA           #FIXED "auto"'>
        !           280: 
        !           281: <!ENTITY % source-req.att
        !           282:         'xml:link               CDATA           #FIXED "simple"
        !           283:         xml:attributes          NMTOKENS        #FIXED "href source"
        !           284:         source                  CDATA           #REQUIRED
        !           285:         show                    CDATA           #FIXED "embed"
        !           286:         actuate                 CDATA           #FIXED "auto"'>
        !           287: 
        !           288: <!--    xml:space attribute:
        !           289:         Indicates that the element contains white space
        !           290:         that the formatter or other application should retain,
        !           291:         as appropriate to its function. -->
        !           292: <!ENTITY % xmlspace.att
        !           293:         'xml:space              (default
        !           294:                                 |preserve)      #FIXED "preserve"'>
        !           295: 
        !           296: <!--    Common attributes:
        !           297:         Every element has an ID attribute (sometimes required,
        !           298:         but usually optional) for links, and a Role attribute
        !           299:         for extending the useful life of the DTD by allowing
        !           300:         authors to make subclasses for any element. %common.att;
        !           301:         is for common attributes where the ID is optional, and
        !           302:         %common-idreq.att; is for common attributes where the
        !           303:         ID is required. -->
        !           304: <!ENTITY % common.att
        !           305:         'id                     ID              #IMPLIED
        !           306:         role                    NMTOKEN         #IMPLIED'>
        !           307: <!ENTITY % common-idreq.att
        !           308:         'id                     ID              #REQUIRED
        !           309:         role                    NMTOKEN         #IMPLIED'>
        !           310: 
        !           311: <!-- ............................................................... -->
        !           312: <!-- Common elements ............................................... -->
        !           313: 
        !           314: <!--    head: Title on divisions, productions, and the like -->
        !           315: <!ELEMENT head (%head.pcd.mix;)*>
        !           316: <!ATTLIST head %common.att;>
        !           317: 
        !           318: <!-- ............................................................... -->
        !           319: <!-- Major specification structure ................................. -->
        !           320: 
        !           321: <!--
        !           322: #1998-03-10: maler: Made spec content model easily customizable.
        !           323: -->
        !           324: 
        !           325: <!ELEMENT spec (%spec.mdl;)>
        !           326: <!ATTLIST spec %common.att;>
        !           327: 
        !           328: <!ELEMENT front (div1+)>
        !           329: <!ATTLIST front %common.att;>
        !           330: 
        !           331: <!ELEMENT body (div1+)>
        !           332: <!ATTLIST body %common.att;>
        !           333: 
        !           334: <!--
        !           335: #1997-09-30: maler: Added inform-div1 to back content.
        !           336: -->
        !           337: 
        !           338: <!ELEMENT back ((div1+, inform-div1*) | inform-div1+)>
        !           339: <!ATTLIST back %common.att;>
        !           340: 
        !           341: <!ELEMENT div1 (head, (%div.mix;)*, div2*)>
        !           342: <!ATTLIST div1 %common.att;>
        !           343: 
        !           344: <!--
        !           345: #1997-09-30: maler: Added inform-div1 declarations.
        !           346: -->
        !           347: 
        !           348: <!--    inform-div1: Non-normative division in back matter -->
        !           349: <!ELEMENT inform-div1 (head, (%div.mix;)*, div2*)>
        !           350: <!ATTLIST inform-div1 %common.att;>
        !           351: 
        !           352: <!ELEMENT div2 (head, (%div.mix;)*, div3*)>
        !           353: <!ATTLIST div2 %common.att;>
        !           354: 
        !           355: <!ELEMENT div3 (head, (%div.mix;)*, div4*)>
        !           356: <!ATTLIST div3 %common.att;>
        !           357: 
        !           358: <!ELEMENT div4 (head, (%div.mix;)*)>
        !           359: <!ATTLIST div4 %common.att;>
        !           360: 
        !           361: <!-- Specification header .......... -->
        !           362: 
        !           363: <!--
        !           364: #1998-03-10: maler: Made header content model easily customizable.
        !           365: -->
        !           366: 
        !           367: <!ELEMENT header (%header.mdl;)>
        !           368: <!ATTLIST header %common.att;>
        !           369: 
        !           370: <!--    Example of title: "Extensible Cheese Language (XCL)" -->
        !           371: <!ELEMENT title (#PCDATA)>
        !           372: <!ATTLIST title %common.att;>
        !           373: 
        !           374: <!--    Example of subtitle: "A Cheesy Specification" -->
        !           375: <!ELEMENT subtitle (#PCDATA)>
        !           376: <!ATTLIST subtitle %common.att;>
        !           377: 
        !           378: <!--    Example of version: "Version 666.0" -->
        !           379: <!ELEMENT version (#PCDATA)>
        !           380: <!ATTLIST version %common.att;>
        !           381: 
        !           382: <!--    Example of w3c-designation: "WD-xcl-19991231" -->
        !           383: <!ELEMENT w3c-designation (#PCDATA)>
        !           384: <!ATTLIST w3c-designation %common.att;>
        !           385: 
        !           386: <!--    Example of w3c-doctype: "World Wide Web Consortium Working
        !           387:         Draft" -->
        !           388: <!ELEMENT w3c-doctype (#PCDATA)>
        !           389: <!ATTLIST w3c-doctype %common.att;>
        !           390: 
        !           391: <!--
        !           392: #1998-03-10: maler: Made pubdate content model easily customizable.
        !           393: -->
        !           394: 
        !           395: <!ELEMENT pubdate (%pubdate.mdl;)>
        !           396: <!ATTLIST pubdate %common.att;>
        !           397: 
        !           398: <!ELEMENT day (#PCDATA)>
        !           399: <!ATTLIST day %common.att;>
        !           400: 
        !           401: <!ELEMENT month (#PCDATA)>
        !           402: <!ATTLIST month %common.att;>
        !           403: 
        !           404: <!ELEMENT year (#PCDATA)>
        !           405: <!ATTLIST year %common.att;>
        !           406: 
        !           407: <!--    Example of notice: "This draft is for public comment..." -->
        !           408: <!ELEMENT notice (%hdr.mix;)+>
        !           409: <!ATTLIST notice %common.att;>
        !           410: 
        !           411: <!ELEMENT publoc (loc+)>
        !           412: <!ATTLIST publoc %common.att;>
        !           413: 
        !           414: <!ELEMENT prevlocs (loc+)>
        !           415: <!ATTLIST prevlocs %common.att;>
        !           416: 
        !           417: <!ELEMENT latestloc (loc+)>
        !           418: <!ATTLIST latestloc %common.att;>
        !           419: 
        !           420: <!--      loc (defined in "Phrase-level elements" below) -->
        !           421: 
        !           422: <!ELEMENT authlist (author+)>
        !           423: <!ATTLIST authlist %common.att;>
        !           424: 
        !           425: <!--
        !           426: #1997-09-30: maler: Made affiliation optional.
        !           427: #1998-03-10: maler: Made email optional.
        !           428: -->
        !           429: 
        !           430: <!ELEMENT author (name, affiliation?, email?)>
        !           431: <!ATTLIST author %common.att;>
        !           432: 
        !           433: <!ELEMENT name (#PCDATA)>
        !           434: <!ATTLIST name
        !           435:         %common.att;
        !           436:         %key.att;>
        !           437: 
        !           438: <!ELEMENT affiliation (#PCDATA)>
        !           439: <!ATTLIST affiliation %common.att;>
        !           440: 
        !           441: <!ELEMENT email (#PCDATA)>
        !           442: <!--    HREF attribute:
        !           443:         email functions as a hypertext reference through this
        !           444:         required attribute.  Typically the reference would use
        !           445:         the mailto: scheme. -->
        !           446: <!ATTLIST email
        !           447:         %common.att;
        !           448:         %href-req.att;>
        !           449: 
        !           450: <!--
        !           451: #1998-05-15: maler: Changed status content from %statusobj.mix;
        !           452: #                   to plain %obj.mix;.  statusp is obsolete.
        !           453: -->
        !           454: 
        !           455: <!ELEMENT status (%obj.mix;)+>
        !           456: <!ATTLIST status %common.att;>
        !           457: 
        !           458: <!ELEMENT abstract (%hdr.mix;)*>
        !           459: <!ATTLIST abstract %common.att;>
        !           460: 
        !           461: <!ELEMENT pubstmt (%hdr.mix;)+>
        !           462: <!ATTLIST pubstmt %common.att;>
        !           463: 
        !           464: <!ELEMENT sourcedesc (%hdr.mix;)+>
        !           465: <!ATTLIST sourcedesc %common.att;>
        !           466: 
        !           467: <!ELEMENT langusage (language+)>
        !           468: <!ATTLIST langusage %common.att;>
        !           469: 
        !           470: <!ELEMENT language (#PCDATA)>
        !           471: <!ATTLIST language %common.att;>
        !           472: 
        !           473: <!ELEMENT revisiondesc (%hdr.mix;)+>
        !           474: <!ATTLIST revisiondesc %common.att;>
        !           475: 
        !           476: <!-- ............................................................... -->
        !           477: <!-- Standalone elements ........................................... -->
        !           478: 
        !           479: <!-- Paragraphs .................... -->
        !           480: 
        !           481: <!--
        !           482: #1997-09-30: maler: Changed from %obj.mix; to %p.mix;.
        !           483: #1997-12-29: maler: Changed order of %p.mix; and %p.pcd.mix;
        !           484: #                   references.
        !           485: #1997-12-29: maler: Changed order of %statusobj.mix; and
        !           486: #                   %statusp.pcd.mix; references.
        !           487: #1998-05-14: maler: Removed statusp declarations.
        !           488: -->
        !           489: 
        !           490: <!ELEMENT p (%p.pcd.mix;|%p.mix;)*>
        !           491: <!ATTLIST p %common.att;>
        !           492: 
        !           493: <!-- Lists ......................... -->
        !           494: 
        !           495: <!ELEMENT ulist (item+)>
        !           496: <!--    spacing attribute:
        !           497:         Use "normal" to get normal vertical spacing for items;
        !           498:         use "compact" to get less spacing.  The default is dependent
        !           499:         on the stylesheet. -->
        !           500: <!ATTLIST ulist
        !           501:         %common.att;
        !           502:         spacing         (normal|compact)        #IMPLIED>
        !           503: 
        !           504: <!ELEMENT olist (item+)>
        !           505: <!--    spacing attribute:
        !           506:         Use "normal" to get normal vertical spacing for items;
        !           507:         use "compact" to get less spacing.  The default is dependent
        !           508:         on the stylesheet. -->
        !           509: <!ATTLIST olist
        !           510:         %common.att;
        !           511:         spacing         (normal|compact)        #IMPLIED>
        !           512: 
        !           513: <!ELEMENT item (%obj.mix;)+>
        !           514: <!ATTLIST item %common.att;>
        !           515: 
        !           516: <!ELEMENT slist (sitem+)>
        !           517: <!ATTLIST slist %common.att;>
        !           518: 
        !           519: <!ELEMENT sitem (%p.pcd.mix;)*>
        !           520: <!ATTLIST sitem %common.att;>
        !           521: 
        !           522: <!ELEMENT glist (gitem+)>
        !           523: <!ATTLIST glist %common.att;>
        !           524: 
        !           525: <!ELEMENT gitem (label, def)>
        !           526: <!ATTLIST gitem %common.att;>
        !           527: 
        !           528: <!ELEMENT label (%label.pcd.mix;)*>
        !           529: <!ATTLIST label %common.att;>
        !           530: 
        !           531: <!ELEMENT def (%obj.mix;)*>
        !           532: <!ATTLIST def %common.att;>
        !           533: 
        !           534: <!-- Special lists ................. -->
        !           535: 
        !           536: <!ELEMENT blist (bibl+)>
        !           537: <!ATTLIST blist %common.att;>
        !           538: 
        !           539: <!ELEMENT bibl (%bibl.pcd.mix;)*>
        !           540: <!--    HREF attribute:
        !           541:         bibl optionally functions as a hypertext reference to the
        !           542:         referred-to resource through this attribute. -->
        !           543: <!ATTLIST bibl
        !           544:         %common.att;
        !           545:         %href.att;
        !           546:         %key.att;>
        !           547: 
        !           548: <!ELEMENT orglist (member+)>
        !           549: <!ATTLIST orglist %common.att;>
        !           550: 
        !           551: <!--
        !           552: #1997-09-30: maler: Added optional affiliation.
        !           553: -->
        !           554: 
        !           555: <!ELEMENT member (name, affiliation?, role?)>
        !           556: <!ATTLIST member %common.att;>
        !           557: 
        !           558: <!--      name (defined in "Specification header" above) -->
        !           559: <!--      affiliation (defined in "Specification header" above) -->
        !           560: 
        !           561: <!ELEMENT role (#PCDATA)>
        !           562: <!ATTLIST role %common.att;>
        !           563: 
        !           564: <!-- Notes ......................... -->
        !           565: 
        !           566: <!ELEMENT note (%obj.mix;)+>
        !           567: <!ATTLIST note %common.att;>
        !           568: 
        !           569: <!--
        !           570: #1998-05-14: maler: Declared issue element.
        !           571: -->
        !           572: 
        !           573: <!ELEMENT issue (%obj.mix;)+>
        !           574: <!ATTLIST issue %common-idreq.att;>
        !           575: 
        !           576: <!ELEMENT wfcnote (head, (%obj.mix;)+)>
        !           577: <!--    ID attribute:
        !           578:         wfcnote must have an ID so that it can be pointed to
        !           579:         from a wfc element in a production. -->
        !           580: <!ATTLIST wfcnote
        !           581:         %common-idreq.att;>
        !           582: 
        !           583: <!ELEMENT vcnote (head, (%obj.mix;)+)>
        !           584: <!--    ID attribute:
        !           585:         vcnote must have an ID so that it can be pointed to
        !           586:         from a vc element in a production. -->
        !           587: <!ATTLIST vcnote
        !           588:         %common-idreq.att;>
        !           589: 
        !           590: <!--
        !           591: #1998-05-21: maler: Declared generic constraintnote element.
        !           592: -->
        !           593: 
        !           594: <!ELEMENT constraintnote (head, (%obj.mix;)+)>
        !           595: <!--    ID attribute:
        !           596:         cnote must have an ID so that it can be pointed to
        !           597:         from a constraint element in a production. -->
        !           598: <!--    type attribute:
        !           599:         cnote must have a type value keyword so that it can be
        !           600:         correctly characterized in the specification. -->
        !           601: <!ATTLIST constraintnote
        !           602:         %common-idreq.att;
        !           603:         type            NMTOKEN         #REQUIRED>
        !           604: 
        !           605: <!-- Illustrations ................. -->
        !           606: 
        !           607: <!--
        !           608: #1998-03-23: maler: Added xml:space attribute.
        !           609: -->
        !           610: 
        !           611: <!ELEMENT eg (%eg.pcd.mix;)*>
        !           612: <!ATTLIST eg
        !           613:         %common.att;
        !           614:         %xmlspace.att;>
        !           615: 
        !           616: <!ELEMENT graphic EMPTY>
        !           617: <!--    source attribute:
        !           618:         The graphic data must reside at the location pointed to.
        !           619:         This is a hypertext reference, but for practical purposes,
        !           620:         for now it should just be a pathname. -->
        !           621: <!ATTLIST graphic
        !           622:         %common.att;
        !           623:         %source-req.att;
        !           624:         alt             CDATA           #IMPLIED>
        !           625: 
        !           626: <!--
        !           627: #1997-11-28: maler: Added prodgroup to scrap and defined it.
        !           628: #1998-05-21: maler: Added constraint to prod.
        !           629: -->
        !           630: 
        !           631: <!ELEMENT scrap (head, (prodgroup+ | prod+ | bnf))>
        !           632: <!--    lang attribute:
        !           633:         The scrap can link to a description of the language used,
        !           634:         found in a language element in the header. -->
        !           635: <!ATTLIST scrap
        !           636:         %common.att;
        !           637:         lang            IDREF           #IMPLIED>
        !           638: 
        !           639: <!ELEMENT prodgroup (prod+)>
        !           640: <!--    pcw<n> attributes:
        !           641:         Presentational attributes to control the width
        !           642:         of the "pseudo-table" columns used to output
        !           643:         groups of productions. -->
        !           644: <!ATTLIST prodgroup
        !           645:         %common.att;
        !           646:         pcw1            CDATA           #IMPLIED
        !           647:         pcw2            CDATA           #IMPLIED
        !           648:         pcw3            CDATA           #IMPLIED
        !           649:         pcw4            CDATA           #IMPLIED
        !           650:         pcw5            CDATA           #IMPLIED
        !           651: >
        !           652: 
        !           653: <!ELEMENT prod (lhs, (rhs, (com|wfc|vc|constraint)*)+)>
        !           654: <!--    ID attribute:
        !           655:         The production must have an ID so that cross-references
        !           656:         (specref) and mentions of nonterminals (nt) can link to
        !           657:         it. -->
        !           658: <!ATTLIST prod
        !           659:         %common-idreq.att;>
        !           660: 
        !           661: <!ELEMENT lhs (#PCDATA)>
        !           662: <!ATTLIST lhs %common.att;>
        !           663: 
        !           664: <!ELEMENT rhs (#PCDATA|nt|xnt|com)*>
        !           665: <!ATTLIST rhs %common.att;>
        !           666: 
        !           667: <!--      nt and xnt (defined in "Phrase-level elements" below) -->
        !           668: 
        !           669: <!--
        !           670: #1997-11-28: maler: Added loc and bibref to com content.
        !           671: -->
        !           672: 
        !           673: <!ELEMENT com (#PCDATA|loc|bibref)*>
        !           674: <!ATTLIST com %common.att;>
        !           675: 
        !           676: <!--    wfc: Should generate the head of the wfcnote pointed to -->
        !           677: <!ELEMENT wfc EMPTY>
        !           678: <!--    def attribute:
        !           679:         Each well formedness tagline in a production must link to the
        !           680:         wfcnote that defines it. -->
        !           681: <!ATTLIST wfc
        !           682:         %def-req.att;
        !           683:         %common.att;>
        !           684: 
        !           685: <!--    vc: Should generate the head of the vcnote pointed to -->
        !           686: <!ELEMENT vc EMPTY>
        !           687: <!--    def attribute:
        !           688:         Each validity tagline in a production must link to the vcnote
        !           689:         that defines it. -->
        !           690: <!ATTLIST vc
        !           691:         %def-req.att;
        !           692:         %common.att;>
        !           693: 
        !           694: <!--
        !           695: #1998-05-21: maler: Declared generic constraint element.
        !           696: -->
        !           697: 
        !           698: <!--    constraint: Should generate the head of the constraintnote
        !           699:         pointed to -->
        !           700: <!ELEMENT constraint EMPTY>
        !           701: <!--    def attribute:
        !           702:         Each constraint tagline in a production must link to the
        !           703:         constraint note that defines it. -->
        !           704: <!ATTLIST constraint
        !           705:         %def-req.att;
        !           706:         %common.att;>
        !           707: 
        !           708: <!--
        !           709: #1998-03-23: maler: Added xml:space attribute.
        !           710: -->
        !           711: 
        !           712: <!--    bnf: Un-marked-up production -->
        !           713: <!ELEMENT bnf (%eg.pcd.mix;)*>
        !           714: <!ATTLIST bnf
        !           715:         %common.att;
        !           716:         %xmlspace.att;>
        !           717: 
        !           718: <!--
        !           719: #1997-10-16: maler: Added table mechanism.
        !           720: #1997-11-28: maler: Added non-null system ID to entity declaration.
        !           721: #                   Added HTML table module.
        !           722: #1997-12-29: maler: IGNOREd SGML Open table model.
        !           723: #1998-03-10: maler: Removed SGML Open table model.
        !           724: #                   Merged html-tbl.mod file into main file.
        !           725: #                   Added %common.att; to all HTML table elements.
        !           726: #1998-05-14: maler: Replaced table model with full HTML 4.0 model.
        !           727: #                   Removed htable in favor of table.
        !           728: #                   Removed htbody in favor of tbody.
        !           729: -->
        !           730: 
        !           731: <!ENTITY % cellhalign.att
        !           732:         'align          (left|center
        !           733:                         |right|justify
        !           734:                         |char)          #IMPLIED
        !           735:         char            CDATA           #IMPLIED
        !           736:         charoff         CDATA           #IMPLIED'>
        !           737: 
        !           738: <!ENTITY % cellvalign.att
        !           739:         'valign         (top|middle
        !           740:                         |bottom
        !           741:                         |baseline)      #IMPLIED'>
        !           742: 
        !           743: <!ENTITY % thtd.att
        !           744:         'abbr           CDATA           #IMPLIED
        !           745:         axis            CDATA           #IMPLIED
        !           746:         headers         IDREFS          #IMPLIED
        !           747:         scope           (row
        !           748:                         |col
        !           749:                         |rowgroup
        !           750:                         |colgroup)      #IMPLIED
        !           751:         rowspan         NMTOKEN         "1"
        !           752:         colspan         NMTOKEN         "1"'>
        !           753: 
        !           754: <!ENTITY % width.att
        !           755:         'width          CDATA           #IMPLIED'>
        !           756: 
        !           757: <!ENTITY % span.att
        !           758:         'span           NMTOKEN         "1"'>
        !           759: 
        !           760: <!ELEMENT table
        !           761:         (caption?, (col*|colgroup*), thead?, tfoot?, tbody+)>
        !           762: <!ATTLIST table
        !           763:         %common.att;
        !           764:         %width.att;
        !           765:         summary         CDATA           #IMPLIED
        !           766:         border          CDATA           #IMPLIED
        !           767:         frame           (void|above
        !           768:                         |below|hsides
        !           769:                         |lhs|rhs
        !           770:                         |vsides|box
        !           771:                         |border)        #IMPLIED
        !           772:         rules           (none|groups
        !           773:                         |rows|cols
        !           774:                         |all)           #IMPLIED
        !           775:         cellspacing     CDATA           #IMPLIED
        !           776:         cellpadding     CDATA           #IMPLIED>
        !           777: 
        !           778: <!ELEMENT caption (%p.pcd.mix;)*>
        !           779: <!ATTLIST caption %common.att;>
        !           780: 
        !           781: <!ELEMENT col EMPTY>
        !           782: <!ATTLIST col
        !           783:         %common.att;
        !           784:         %span.att;
        !           785:         %width.att;
        !           786:         %cellhalign.att;
        !           787:         %cellvalign.att;>
        !           788: 
        !           789: <!ELEMENT colgroup (col)*>
        !           790: <!ATTLIST colgroup
        !           791:         %common.att;
        !           792:         %span.att;
        !           793:         %width.att;
        !           794:         %cellhalign.att;
        !           795:         %cellvalign.att;>
        !           796: 
        !           797: <!ELEMENT thead (tr)+>
        !           798: <!ATTLIST thead
        !           799:         %common.att;
        !           800:         %cellhalign.att;
        !           801:         %cellvalign.att;>
        !           802: 
        !           803: <!ELEMENT tfoot (tr)+>
        !           804: <!ATTLIST tfoot
        !           805:         %common.att;
        !           806:         %cellhalign.att;
        !           807:         %cellvalign.att;>
        !           808: 
        !           809: <!ELEMENT tbody (tr)+>
        !           810: <!ATTLIST tbody
        !           811:         %common.att;
        !           812:         %cellhalign.att;
        !           813:         %cellvalign.att;>
        !           814: 
        !           815: <!ELEMENT tr (th|td)+>
        !           816: <!ATTLIST tr
        !           817:         %common.att;
        !           818:         %cellhalign.att;
        !           819:         %cellvalign.att;>
        !           820: 
        !           821: <!ELEMENT th (%p.pcd.mix;|%p.mix;)*>
        !           822: <!ATTLIST th
        !           823:         %common.att;
        !           824:         %thtd.att;
        !           825:         %cellhalign.att;
        !           826:         %cellvalign.att;>
        !           827: 
        !           828: <!ELEMENT td (%p.pcd.mix;|%p.mix;)*>
        !           829: <!ATTLIST td
        !           830:         %common.att;
        !           831:         %thtd.att;
        !           832:         %cellhalign.att;
        !           833:         %cellvalign.att;>
        !           834: 
        !           835: <!-- ............................................................... -->
        !           836: <!-- Phrase-level elements ......................................... -->
        !           837: 
        !           838: <!--    bibref: Should generate, in square brackets, "key" on bibl -->
        !           839: <!ELEMENT bibref EMPTY>
        !           840: <!--    ref attribute:
        !           841:         A bibliography reference must link to the bibl element that
        !           842:         describes the resource. -->
        !           843: <!ATTLIST bibref
        !           844:         %common.att;
        !           845:         %ref-req.att;>
        !           846: 
        !           847: <!ELEMENT code (%tech.pcd.mix;)*>
        !           848: <!ATTLIST code %common.att;>
        !           849: 
        !           850: <!--
        !           851: #1998-03-10: maler: Declared ednote and related elements.
        !           852: -->
        !           853: 
        !           854: <!ELEMENT ednote (name?, date?, edtext)>
        !           855: <!ATTLIST ednote %common.att;>
        !           856: 
        !           857: <!ELEMENT date (#PCDATA)>
        !           858: <!ATTLIST date %common.att;>
        !           859: 
        !           860: <!ELEMENT edtext (#PCDATA)>
        !           861: <!ATTLIST edtext %common.att;>
        !           862: 
        !           863: <!ELEMENT emph (#PCDATA)>
        !           864: <!ATTLIST emph %common.att;>
        !           865: 
        !           866: <!--    footnote: Both footnote content and call to footnote -->
        !           867: <!ELEMENT footnote (%obj.mix;)+>
        !           868: <!ATTLIST footnote %common.att;>
        !           869: 
        !           870: <!ELEMENT kw (%tech.pcd.mix;)*>
        !           871: <!ATTLIST kw %common.att;>
        !           872: 
        !           873: <!ELEMENT loc (#PCDATA)>
        !           874: <!--    HREF attribute:
        !           875:         The purpose of a loc element is to function as a hypertext
        !           876:         link to a resource.  (Ideally, the content of loc will also
        !           877:         mention the URI of the resource, so that readers of the
        !           878:         printed version will be able to locate the resource.) -->
        !           879: <!ATTLIST loc
        !           880:         %common.att;
        !           881:         %href-req.att;>
        !           882: 
        !           883: <!ELEMENT nt (#PCDATA)>
        !           884: <!--    def attribute:
        !           885:         The nonterminal must link to the production that defines
        !           886:         it. -->
        !           887: <!ATTLIST nt
        !           888:         %common.att;
        !           889:         %def-req.att;>
        !           890: 
        !           891: <!--
        !           892: #1998-03-10: maler: Declared quote.
        !           893: -->
        !           894: 
        !           895: <!--    quote: Scare quotes and other purely presentational quotes -->
        !           896: <!ELEMENT quote (%p.pcd.mix;)*>
        !           897: <!ATTLIST quote %common.att;>
        !           898: 
        !           899: <!--    specref: Should generate italic "[n.n], Section Title" for
        !           900:         div, "n" for numbered item, "[n]" for production, or
        !           901:         "Issue n" for issue -->
        !           902: <!ELEMENT specref EMPTY>
        !           903: <!--    ref attribute:
        !           904:         The purpose of a specref element is to link to a div, item
        !           905:         in an olist, or production in the current spec. -->
        !           906: <!ATTLIST specref
        !           907:         %common.att;
        !           908:         %ref-req.att;>
        !           909: 
        !           910: <!ELEMENT term (#PCDATA)>
        !           911: <!ATTLIST term %common.att;>
        !           912: 
        !           913: <!ELEMENT termdef (%termdef.pcd.mix;|%termdef.mix;)*>
        !           914: <!--    ID attribute:
        !           915:         A term definition must have an ID so that it can be linked
        !           916:         to from termref elements. -->
        !           917: <!--    term attribute:
        !           918:         The canonical form of the term or phrase being defined must
        !           919:         appear in this attribute, even if the term or phrase also
        !           920:         appears in the element content in identical form (e.g., in
        !           921:         the term element). -->
        !           922: <!ATTLIST termdef
        !           923:         %common-idreq.att;
        !           924:         term            CDATA           #REQUIRED>
        !           925: 
        !           926: <!ELEMENT termref (#PCDATA)>
        !           927: <!--    ref attribute:
        !           928:         A term reference must link to the termdef element that
        !           929:         defines the term. -->
        !           930: <!ATTLIST termref
        !           931:         %common.att;
        !           932:         %def-req.att;>
        !           933: 
        !           934: <!ELEMENT titleref (#PCDATA)>
        !           935: <!--    HREF attribute:
        !           936:         A title reference can optionally function as a hypertext
        !           937:         link to the resource with this title. -->
        !           938: <!ATTLIST titleref
        !           939:         %common.att;
        !           940:         %href.att;>
        !           941: 
        !           942: <!ELEMENT xnt (#PCDATA)>
        !           943: <!--    HREF attribute:
        !           944:         The nonterminal must hyperlink to a resource that serves
        !           945:         to define it (e.g., a production in a related XML
        !           946:         specification). -->
        !           947: <!ATTLIST xnt
        !           948:         %common.att;
        !           949:         %href-req.att;>
        !           950: 
        !           951: <!--
        !           952: #1997-12-29: maler: Declared xspecref.
        !           953: -->
        !           954: 
        !           955: <!ELEMENT xspecref (#PCDATA)>
        !           956: <!--    HREF attribute:
        !           957:         The spec reference must hyperlink to the resource to
        !           958:         cross-refer to (e.g., a section in a related XML
        !           959:         specification). -->
        !           960: <!ATTLIST xspecref
        !           961:         %common.att;
        !           962:         %href-req.att;>
        !           963: 
        !           964: <!ELEMENT xtermref (#PCDATA)>
        !           965: <!--    HREF attribute:
        !           966:         The term reference must hyperlink to the resource that
        !           967:         serves to define the term (e.g., a term definition in
        !           968:         a related XML specification). -->
        !           969: <!ATTLIST xtermref
        !           970:         %common.att;
        !           971:         %href-req.att;>
        !           972: 
        !           973: <!-- ............................................................... -->
        !           974: <!-- Unused elements for ADEPT ..................................... -->
        !           975: 
        !           976: <!--
        !           977: #1997-09-30: maler: Added unusued elements.
        !           978: #1997-10-14: maler: Fixed div to move nested div to the mixture.
        !           979: #1998-05-14: maler: Added key-term, htable, and htbody.
        !           980: -->
        !           981: 
        !           982: <!--    The following elements are purposely declared but never
        !           983:         referenced.  Declaring them allows them to be pasted from
        !           984:         an HTML document or an earlier version of an XML spec document
        !           985:         into a document using this DTD in ADEPT.  The ATD Context
        !           986:         Transformation mechanism will try to convert them to the
        !           987:         appropriate element for this DTD.  While this conversion
        !           988:         will not work for all fragments, it does allow many cases
        !           989:         to work reasonably well. -->
        !           990: 
        !           991: <!ELEMENT div
        !           992:         (head?, (%div.mix;|ul|ol|h1|h2|h3|h4|h5|h6|div)*)>
        !           993: <!ELEMENT h1 (%head.pcd.mix;|em|a)*>
        !           994: <!ELEMENT h2 (%head.pcd.mix;|em|a)*>
        !           995: <!ELEMENT h3 (%head.pcd.mix;|em|a)*>
        !           996: <!ELEMENT h4 (%head.pcd.mix;|em|a)*>
        !           997: <!ELEMENT h5 (%head.pcd.mix;|em|a)*>
        !           998: <!ELEMENT h6 (%head.pcd.mix;|em|a)*>
        !           999: <!ELEMENT pre (%eg.pcd.mix;|em)*>
        !          1000: <!ELEMENT ul (item|li)*>
        !          1001: <!ELEMENT ol (item|li)*>
        !          1002: <!ELEMENT li (#PCDATA|%obj.mix;)*>
        !          1003: <!ELEMENT em (#PCDATA)>
        !          1004: <!ELEMENT a (#PCDATA)>
        !          1005: 
        !          1006: <!ELEMENT key-term (#PCDATA)>
        !          1007: <!ELEMENT htable
        !          1008:         (caption?, (col*|colgroup*), thead?, tfoot?, tbody+)>
        !          1009: <!ELEMENT htbody (tr)+>
        !          1010: <!ELEMENT statusp (%p.pcd.mix;|%p.mix;)*>
        !          1011: 
        !          1012: <!-- ............................................................... -->
        !          1013: <!-- Change history ................................................ -->
        !          1014: 
        !          1015: <!--
        !          1016: #1997-08-18: maler
        !          1017: #- Did a major revision.
        !          1018: #1997-09-10: maler
        !          1019: #- Updated FPI.
        !          1020: #- Removed namekey element and put key attribute on name element.
        !          1021: #- Made statusp element and supporting entities.
        !          1022: #- Added slist element with sitem+ content.
        !          1023: #- Required head on scrap and added new bnf subelement.
        !          1024: #- Added an xnt element and allowed it and nt in regular text and rhs.
        !          1025: #- Removed the ntref element.
        !          1026: #- Added back the com element to the content of rhs.
        !          1027: #- Added a key attribute to bibl.
        !          1028: #- Removed the ident element.
        !          1029: #- Added a term element to be used inside termdef.
        !          1030: #- Added an xtermref element parallel to termref.
        !          1031: #- Beefed up DTD comments.
        !          1032: #1997-09-12: maler
        !          1033: #- Allowed term element in general text.
        !          1034: #- Changed bibref to EMPTY.
        !          1035: #- Added ref.class to termdef.pcd.mix.
        !          1036: #1997-09-14: maler
        !          1037: #- Changed main attribute of xtermref from def to href.
        !          1038: #- Added termdef.class to label contents.
        !          1039: #1997-09-30: maler
        !          1040: #- Added character entity module and added new entities.
        !          1041: #- Removed p from appearing directly in self; created %p.mix;.
        !          1042: #- Added inform-div (non-normative division) element.
        !          1043: #- Fixed xtermref comment to mention HREF, not ref.
        !          1044: #- Extended orglist model to allow optional affiliation.
        !          1045: #- Modified author to make affiliation optional.
        !          1046: #- Added %speclist.class; and %note.class; to %obj.mix; and %p.mix;.
        !          1047: #- Added %note.class; and %illus.class; to %termdef.pcd.mix;.
        !          1048: #- Added unused HTML elements.
        !          1049: #- Put empty system ID next to public ID in entity declarations.
        !          1050: #1997-10-14: maler
        !          1051: #- Fixed "unused" div content model to move nested div to mixture.
        !          1052: #1997-10-16: maler
        !          1053: #- Added SGML Open Exchange tables.
        !          1054: #1997-11-28: maler
        !          1055: #- Added support for prodgroup and its attributes.
        !          1056: #- Added support for HTML tables.
        !          1057: #- Added loc and bibref to content of com.
        !          1058: #- Added loc to general p content models.
        !          1059: #- Allowed p as alternative to statusp in status.
        !          1060: #- Added non-null system IDs to external parameter entity declarations.
        !          1061: #- (Modified the SGML Open table module to make it XML-compliant.)
        !          1062: #- (Modified the character entity module.)
        !          1063: #1997-12-29: maler
        !          1064: #- Moved #PCDATA occurrences to come before GIs in content models.
        !          1065: #- Removed use of the SGML Open table module.
        !          1066: #- Added xspecref element.
        !          1067: #- Ensured that all FPIs contain 4-digit year.
        !          1068: #- (Modified the character entity module.)
        !          1069: #1998-03-10: maler
        !          1070: #- Merged the character entity and table modules into the main file.
        !          1071: #- Added ldquo and rdquo entities.
        !          1072: #- Added common attributes to prodgroup.
        !          1073: #- Made the email element in header optional.
        !          1074: #- Removed reference to the SGML Open table model.
        !          1075: #- Added ednote element.
        !          1076: #- Added quote element.
        !          1077: #- Updated XLink usage to reflect 3 March 1998 WD.
        !          1078: #- Added "local" entities to the class entities for customization.
        !          1079: #- Parameterized several content models to allow for customization.
        !          1080: #1998-03-23: maler
        !          1081: #- Cleaned up some comments and removed some others.
        !          1082: #- Added xml:space semi-common attribute to eg and bnf elements.
        !          1083: #- Added show and embed attributes on all the uses of href.
        !          1084: #- Added %common.att; to all HTML table elements.
        !          1085: #- Added a real URI to the "typical invocation" comment.
        !          1086: #1998-05-14: maler
        !          1087: #- Fixed mdash, ldquo, and rdquo character entities.
        !          1088: #- Switched to the full HTML 4.0 table model.
        !          1089: #- Removed htable/htbody elements and replaced them with table/tbody.
        !          1090: #- Added issue element to %note.class; and declared it.
        !          1091: #- Allowed prevlocs and latestloc in either order.
        !          1092: #- Added key-term, htable, htbody, and statusp as unused elements.
        !          1093: #- Removed real statusp element in favor of plain p.
        !          1094: #1998-05-21: maler
        !          1095: #- Declared generic constraint and constraintnote elements.
        !          1096: #- Added constraintnote to %note.class;.
        !          1097: #- Added constraint to %eg.pcd.mix; and prod content model.
        !          1098: -->
        !          1099: 
        !          1100: <!-- ............................................................... -->
        !          1101: <!-- End of XML specification DTD .................................. -->
        !          1102: <!-- ............................................................... -->

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