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Member "hitch-1.5.2/build-aux/ylwrap" (27 Nov 2019, 6860 Bytes) of package /linux/www/hitch-1.5.2.tar.gz:


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    1 #! /bin/sh
    2 # ylwrap - wrapper for lex/yacc invocations.
    3 
    4 scriptversion=2018-03-07.03; # UTC
    5 
    6 # Copyright (C) 1996-2018 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 <https://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 'before-save-hook 'time-stamp)
  243 # time-stamp-start: "scriptversion="
  244 # time-stamp-format: "%:y-%02m-%02d.%02H"
  245 # time-stamp-time-zone: "UTC0"
  246 # time-stamp-end: "; # UTC"
  247 # End: