ylwrap - gcc - Git at Google

 #! /bin/sh
 # ylwrap - wrapper for lex/yacc invocations.

 scriptversion=2013-01-12.17; # UTC

 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
 #
 # Written by Tom Tromey <tromey@cygnus.com>.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2, or (at your option)
 # any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.

 # This file is maintained in Automake, please report
 # bugs to <bug-automake@gnu.org> or send patches to
 # <automake-patches@gnu.org>.

 get_dirname ()
 {
   case $1 in
     */*|*\\*) printf '%s\n' "$1" | sed -e 's|\([\\/]\)[^\\/]*$|\1|';;
     # Otherwise,  we want the empty string (not ".").
   esac
 }

 # guard FILE
 # ----------
 # The CPP macro used to guard inclusion of FILE.
 guard ()
 {
   printf '%s\n' "$1"                                                    \
     | sed                                                               \
         -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'   \
         -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'                        \
         -e 's/__*/_/g'
 }

 # quote_for_sed [STRING]
 # ----------------------
 # Return STRING (or stdin) quoted to be used as a sed pattern.
 quote_for_sed ()
 {
   case $# in
     0) cat;;
     1) printf '%s\n' "$1";;
   esac \
     | sed -e 's|[][\\.*]|\\&|g'
 }

 case "$1" in
   '')
     echo "$0: No files given.  Try '$0 --help' for more information." 1>&2
     exit 1
     ;;
   --basedir)
     basedir=$2
     shift 2
     ;;
   -h|--h*)
     cat <<\EOF
 Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...

 Wrapper for lex/yacc invocations, renaming files as desired.

   INPUT is the input file
   OUTPUT is one file PROG generates
   DESIRED is the file we actually want instead of OUTPUT
   PROGRAM is program to run
   ARGS are passed to PROG

 Any number of OUTPUT,DESIRED pairs may be used.

 Report bugs to <bug-automake@gnu.org>.
 EOF
     exit $?
     ;;
   -v|--v*)
     echo "ylwrap $scriptversion"
     exit $?
     ;;
 esac


 # The input.
 input=$1
 shift
 # We'll later need for a correct munging of "#line" directives.
 input_sub_rx=`get_dirname "$input" | quote_for_sed`
 case $input in
   [\\/]* | ?:[\\/]*)
     # Absolute path; do nothing.
     ;;
   *)
     # Relative path.  Make it absolute.
     input=`pwd`/$input
     ;;
 esac
 input_rx=`get_dirname "$input" | quote_for_sed`

 # The parser itself, the first file, is the destination of the .y.c
 # rule in the Makefile.
 parser=$1

 # A sed program to s/FROM/TO/g for all the FROM/TO so that, for
 # instance, we rename #include "y.tab.h" into #include "parse.h"
 # during the conversion from y.tab.c to parse.c.
 sed_fix_filenames=

 # Also rename header guards, as Bison 2.7 for instance uses its header
 # guard in its implementation file.
 sed_fix_header_guards=

 while test $# -ne 0; do
   if test x"$1" = x"--"; then
     shift
     break
   fi
   from=$1
   shift
   to=$1
   shift
   sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;"
   sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;"
 done

 # The program to run.
 prog=$1
 shift
 # Make any relative path in $prog absolute.
 case $prog in
   [\\/]* | ?:[\\/]*) ;;
   *[\\/]*) prog=`pwd`/$prog ;;
 esac

 dirname=ylwrap$$
 do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
 trap "ret=129; $do_exit" 1
 trap "ret=130; $do_exit" 2
 trap "ret=141; $do_exit" 13
 trap "ret=143; $do_exit" 15
 mkdir $dirname || exit 1

 cd $dirname

 case $# in
   0) "$prog" "$input" ;;
   *) "$prog" "$@" "$input" ;;
 esac
 ret=$?

 if test $ret -eq 0; then
   for from in *
   do
     to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"`
     if test -f "$from"; then
       # If $2 is an absolute path name, then just use that,
       # otherwise prepend '../'.
       case $to in
         [\\/]* | ?:[\\/]*) target=$to;;
         *) target=../$to;;
       esac

       # Do not overwrite unchanged header files to avoid useless
       # recompilations.  Always update the parser itself: it is the
       # destination of the .y.c rule in the Makefile.  Divert the
       # output of all other files to a temporary file so we can
       # compare them to existing versions.
       if test $from != $parser; then
         realtarget=$target
         target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'`
       fi

       # Munge "#line" or "#" directives.  Don't let the resulting
       # debug information point at an absolute srcdir.  Use the real
       # output file name, not yy.lex.c for instance.  Adjust the
       # include guards too.
       sed -e "/^#/!b"                           \
           -e "s|$input_rx|$input_sub_rx|"       \
           -e "$sed_fix_filenames"               \
           -e "$sed_fix_header_guards"           \
         "$from" >"$target" || ret=$?

       # Check whether files must be updated.
       if test "$from" != "$parser"; then
         if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
           echo "$to is unchanged"
           rm -f "$target"
         else
           echo "updating $to"
           mv -f "$target" "$realtarget"
         fi
       fi
     else
       # A missing file is only an error for the parser.  This is a
       # blatant hack to let us support using "yacc -d".  If -d is not
       # specified, don't fail when the header file is "missing".
       if test "$from" = "$parser"; then
         ret=1
       fi
     fi
   done
 fi

 # Remove the directory.
 cd ..
 rm -rf $dirname

 exit $ret

 # Local Variables:
 # mode: shell-script
 # sh-indentation: 2
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
 # time-stamp-time-zone: "UTC"
 # time-stamp-end: "; # UTC"
 # End:
	#! /bin/sh
	# ylwrap - wrapper for lex/yacc invocations.

	scriptversion=2013-01-12.17; # UTC

	# Copyright (C) 1996-2014 Free Software Foundation, Inc.
	#
	# Written by Tom Tromey <tromey@cygnus.com>.
	#
	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License as published by
	# the Free Software Foundation; either version 2, or (at your option)
	# any later version.
	#
	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program. If not, see <http://www.gnu.org/licenses/>.

	# As a special exception to the GNU General Public License, if you
	# distribute this file as part of a program that contains a
	# configuration script generated by Autoconf, you may include it under
	# the same distribution terms that you use for the rest of that program.

	# This file is maintained in Automake, please report
	# bugs to <bug-automake@gnu.org> or send patches to
	# <automake-patches@gnu.org>.

	get_dirname ()
	{
	case $1 in
	/\|\\) printf '%s\n' "$1" \| sed -e 's\|\([\\/]\)[^\\/]*$\|\1\|';;
	# Otherwise, we want the empty string (not ".").
	esac
	}

	# guard FILE
	# ----------
	# The CPP macro used to guard inclusion of FILE.
	guard ()
	{
	printf '%s\n' "$1" \
	\| sed \
	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
	-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g' \
	-e 's/__*/_/g'
	}

	# quote_for_sed [STRING]
	# ----------------------
	# Return STRING (or stdin) quoted to be used as a sed pattern.
	quote_for_sed ()
	{
	case $# in
	0) cat;;
	1) printf '%s\n' "$1";;
	esac \
	\| sed -e 's\|[][\\.*]\|\\&\|g'
	}

	case "$1" in
	'')
	echo "$0: No files given. Try '$0 --help' for more information." 1>&2
	exit 1
	;;
	--basedir)
	basedir=$2
	shift 2
	;;
	-h\|--h*)
	cat <<\EOF
	Usage: ylwrap [--help\|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...

	Wrapper for lex/yacc invocations, renaming files as desired.

	INPUT is the input file
	OUTPUT is one file PROG generates
	DESIRED is the file we actually want instead of OUTPUT
	PROGRAM is program to run
	ARGS are passed to PROG

	Any number of OUTPUT,DESIRED pairs may be used.

	Report bugs to <bug-automake@gnu.org>.
	EOF
	exit $?
	;;
	-v\|--v*)
	echo "ylwrap $scriptversion"
	exit $?
	;;
	esac


	# The input.
	input=$1
	shift
	# We'll later need for a correct munging of "#line" directives.
	input_sub_rx=`get_dirname "$input" \| quote_for_sed`
	case $input in
	[\\/]* \| ?:[\\/]*)
	# Absolute path; do nothing.
	;;
	*)
	# Relative path. Make it absolute.
	input=`pwd`/$input
	;;
	esac
	input_rx=`get_dirname "$input" \| quote_for_sed`

	# The parser itself, the first file, is the destination of the .y.c
	# rule in the Makefile.
	parser=$1

	# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
	# instance, we rename #include "y.tab.h" into #include "parse.h"
	# during the conversion from y.tab.c to parse.c.
	sed_fix_filenames=

	# Also rename header guards, as Bison 2.7 for instance uses its header
	# guard in its implementation file.
	sed_fix_header_guards=

	while test $# -ne 0; do
	if test x"$1" = x"--"; then
	shift
	break
	fi
	from=$1
	shift
	to=$1
	shift
	sed_fix_filenames="${sed_fix_filenames}s\|"`quote_for_sed "$from"`"\|$to\|g;"
	sed_fix_header_guards="${sed_fix_header_guards}s\|"`guard "$from"`"\|"`guard "$to"`"\|g;"
	done

	# The program to run.
	prog=$1
	shift
	# Make any relative path in $prog absolute.
	case $prog in
	[\\/]* \| ?:[\\/]*) ;;
	[\\/]) prog=`pwd`/$prog ;;
	esac

	dirname=ylwrap$$
	do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
	trap "ret=129; $do_exit" 1
	trap "ret=130; $do_exit" 2
	trap "ret=141; $do_exit" 13
	trap "ret=143; $do_exit" 15
	mkdir $dirname \|\| exit 1

	cd $dirname

	case $# in
	0) "$prog" "$input" ;;
	*) "$prog" "$@" "$input" ;;
	esac
	ret=$?

	if test $ret -eq 0; then
	for from in *
	do
	to=`printf '%s\n' "$from" \| sed "$sed_fix_filenames"`
	if test -f "$from"; then
	# If $2 is an absolute path name, then just use that,
	# otherwise prepend '../'.
	case $to in
	[\\/]* \| ?:[\\/]*) target=$to;;
	*) target=../$to;;
	esac

	# Do not overwrite unchanged header files to avoid useless
	# recompilations. Always update the parser itself: it is the
	# destination of the .y.c rule in the Makefile. Divert the
	# output of all other files to a temporary file so we can
	# compare them to existing versions.
	if test $from != $parser; then
	realtarget=$target
	target=tmp-`printf '%s\n' "$target" \| sed 's\|.*[\\/]\|\|g'`
	fi

	# Munge "#line" or "#" directives. Don't let the resulting
	# debug information point at an absolute srcdir. Use the real
	# output file name, not yy.lex.c for instance. Adjust the
	# include guards too.
	sed -e "/^#/!b" \
	-e "s\|$input_rx\|$input_sub_rx\|" \
	-e "$sed_fix_filenames" \
	-e "$sed_fix_header_guards" \
	"$from" >"$target" \|\| ret=$?

	# Check whether files must be updated.
	if test "$from" != "$parser"; then
	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
	echo "$to is unchanged"
	rm -f "$target"
	else
	echo "updating $to"
	mv -f "$target" "$realtarget"
	fi
	fi
	else
	# A missing file is only an error for the parser. This is a
	# blatant hack to let us support using "yacc -d". If -d is not
	# specified, don't fail when the header file is "missing".
	if test "$from" = "$parser"; then
	ret=1
	fi
	fi
	done
	fi

	# Remove the directory.
	cd ..
	rm -rf $dirname

	exit $ret

	# Local Variables:
	# mode: shell-script
	# sh-indentation: 2
	# eval: (add-hook 'write-file-hooks 'time-stamp)
	# time-stamp-start: "scriptversion="
	# time-stamp-format: "%:y-%02m-%02d.%02H"
	# time-stamp-time-zone: "UTC"
	# time-stamp-end: "; # UTC"
	# End: