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Strongswan

    1: #! /bin/sh
    2: # ylwrap - wrapper for lex/yacc invocations.
    3: 
    4: scriptversion=2013-01-12.17; # UTC
    5: 
    6: # Copyright (C) 1996-2014 Free Software Foundation, Inc.
    7: #
    8: # Written by Tom Tromey <tromey@cygnus.com>.
    9: #
   10: # This program is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2, or (at your option)
   13: # any later version.
   14: #
   15: # This program is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with this program.  If not, see <http://www.gnu.org/licenses/>.
   22: 
   23: # As a special exception to the GNU General Public License, if you
   24: # distribute this file as part of a program that contains a
   25: # configuration script generated by Autoconf, you may include it under
   26: # the same distribution terms that you use for the rest of that program.
   27: 
   28: # This file is maintained in Automake, please report
   29: # bugs to <bug-automake@gnu.org> or send patches to
   30: # <automake-patches@gnu.org>.
   31: 
   32: get_dirname ()
   33: {
   34:   case $1 in
   35:     */*|*\\*) printf '%s\n' "$1" | sed -e 's|\([\\/]\)[^\\/]*$|\1|';;
   36:     # Otherwise,  we want the empty string (not ".").
   37:   esac
   38: }
   39: 
   40: # guard FILE
   41: # ----------
   42: # The CPP macro used to guard inclusion of FILE.
   43: guard ()
   44: {
   45:   printf '%s\n' "$1"                                                    \
   46:     | sed                                                               \
   47:         -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'   \
   48:         -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'                        \
   49:         -e 's/__*/_/g'
   50: }
   51: 
   52: # quote_for_sed [STRING]
   53: # ----------------------
   54: # Return STRING (or stdin) quoted to be used as a sed pattern.
   55: quote_for_sed ()
   56: {
   57:   case $# in
   58:     0) cat;;
   59:     1) printf '%s\n' "$1";;
   60:   esac \
   61:     | sed -e 's|[][\\.*]|\\&|g'
   62: }
   63: 
   64: case "$1" in
   65:   '')
   66:     echo "$0: No files given.  Try '$0 --help' for more information." 1>&2
   67:     exit 1
   68:     ;;
   69:   --basedir)
   70:     basedir=$2
   71:     shift 2
   72:     ;;
   73:   -h|--h*)
   74:     cat <<\EOF
   75: Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
   76: 
   77: Wrapper for lex/yacc invocations, renaming files as desired.
   78: 
   79:   INPUT is the input file
   80:   OUTPUT is one file PROG generates
   81:   DESIRED is the file we actually want instead of OUTPUT
   82:   PROGRAM is program to run
   83:   ARGS are passed to PROG
   84: 
   85: Any number of OUTPUT,DESIRED pairs may be used.
   86: 
   87: Report bugs to <bug-automake@gnu.org>.
   88: EOF
   89:     exit $?
   90:     ;;
   91:   -v|--v*)
   92:     echo "ylwrap $scriptversion"
   93:     exit $?
   94:     ;;
   95: esac
   96: 
   97: 
   98: # The input.
   99: input=$1
  100: shift
  101: # We'll later need for a correct munging of "#line" directives.
  102: input_sub_rx=`get_dirname "$input" | quote_for_sed`
  103: case $input in
  104:   [\\/]* | ?:[\\/]*)
  105:     # Absolute path; do nothing.
  106:     ;;
  107:   *)
  108:     # Relative path.  Make it absolute.
  109:     input=`pwd`/$input
  110:     ;;
  111: esac
  112: input_rx=`get_dirname "$input" | quote_for_sed`
  113: 
  114: # Since DOS filename conventions don't allow two dots,
  115: # the DOS version of Bison writes out y_tab.c instead of y.tab.c
  116: # and y_tab.h instead of y.tab.h. Test to see if this is the case.
  117: y_tab_nodot=false
  118: if test -f y_tab.c || test -f y_tab.h; then
  119:   y_tab_nodot=true
  120: fi
  121: 
  122: # The parser itself, the first file, is the destination of the .y.c
  123: # rule in the Makefile.
  124: parser=$1
  125: 
  126: # A sed program to s/FROM/TO/g for all the FROM/TO so that, for
  127: # instance, we rename #include "y.tab.h" into #include "parse.h"
  128: # during the conversion from y.tab.c to parse.c.
  129: sed_fix_filenames=
  130: 
  131: # Also rename header guards, as Bison 2.7 for instance uses its header
  132: # guard in its implementation file.
  133: sed_fix_header_guards=
  134: 
  135: while test $# -ne 0; do
  136:   if test x"$1" = x"--"; then
  137:     shift
  138:     break
  139:   fi
  140:   from=$1
  141:   # Handle y_tab.c and y_tab.h output by DOS
  142:   if $y_tab_nodot; then
  143:     case $from in
  144:       "y.tab.c") from=y_tab.c;;
  145:       "y.tab.h") from=y_tab.h;;
  146:     esac
  147:   fi
  148:   shift
  149:   to=$1
  150:   shift
  151:   sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;"
  152:   sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;"
  153: done
  154: 
  155: # The program to run.
  156: prog=$1
  157: shift
  158: # Make any relative path in $prog absolute.
  159: case $prog in
  160:   [\\/]* | ?:[\\/]*) ;;
  161:   *[\\/]*) prog=`pwd`/$prog ;;
  162: esac
  163: 
  164: dirname=ylwrap$$
  165: do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
  166: trap "ret=129; $do_exit" 1
  167: trap "ret=130; $do_exit" 2
  168: trap "ret=141; $do_exit" 13
  169: trap "ret=143; $do_exit" 15
  170: mkdir $dirname || exit 1
  171: 
  172: cd $dirname
  173: 
  174: case $# in
  175:   0) "$prog" "$input" ;;
  176:   *) "$prog" "$@" "$input" ;;
  177: esac
  178: ret=$?
  179: 
  180: if test $ret -eq 0; then
  181:   for from in *
  182:   do
  183:     to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"`
  184:     if test -f "$from"; then
  185:       # If $2 is an absolute path name, then just use that,
  186:       # otherwise prepend '../'.
  187:       case $to in
  188:         [\\/]* | ?:[\\/]*) target=$to;;
  189:         *) target=../$to;;
  190:       esac
  191: 
  192:       # Do not overwrite unchanged header files to avoid useless
  193:       # recompilations.  Always update the parser itself: it is the
  194:       # destination of the .y.c rule in the Makefile.  Divert the
  195:       # output of all other files to a temporary file so we can
  196:       # compare them to existing versions.
  197:       if test $from != $parser; then
  198:         realtarget=$target
  199:         target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'`
  200:       fi
  201: 
  202:       # Munge "#line" or "#" directives.  Don't let the resulting
  203:       # debug information point at an absolute srcdir.  Use the real
  204:       # output file name, not yy.lex.c for instance.  Adjust the
  205:       # include guards too.
  206:       sed -e "/^#/!b"                           \
  207:           -e "s|$input_rx|$input_sub_rx|"       \
  208:           -e "$sed_fix_filenames"               \
  209:           -e "$sed_fix_header_guards"           \
  210:         "$from" >"$target" || ret=$?
  211: 
  212:       # Check whether files must be updated.
  213:       if test "$from" != "$parser"; then
  214:         if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
  215:           echo "$to is unchanged"
  216:           rm -f "$target"
  217:         else
  218:           echo "updating $to"
  219:           mv -f "$target" "$realtarget"
  220:         fi
  221:       fi
  222:     else
  223:       # A missing file is only an error for the parser.  This is a
  224:       # blatant hack to let us support using "yacc -d".  If -d is not
  225:       # specified, don't fail when the header file is "missing".
  226:       if test "$from" = "$parser"; then
  227:         ret=1
  228:       fi
  229:     fi
  230:   done
  231: fi
  232: 
  233: # Remove the directory.
  234: cd ..
  235: rm -rf $dirname
  236: 
  237: exit $ret
  238: 
  239: # Local Variables:
  240: # mode: shell-script
  241: # sh-indentation: 2
  242: # eval: (add-hook 'write-file-hooks 'time-stamp)
  243: # time-stamp-start: "scriptversion="
  244: # time-stamp-format: "%:y-%02m-%02d.%02H"
  245: # time-stamp-time-zone: "UTC"
  246: # time-stamp-end: "; # UTC"
  247: # End: