248 lines
6.7 KiB
Bash
Executable File
248 lines
6.7 KiB
Bash
Executable File
#! /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`
|
|
|
|
# Since DOS filename conventions don't allow two dots,
|
|
# the DOS version of Bison writes out y_tab.c instead of y.tab.c
|
|
# and y_tab.h instead of y.tab.h. Test to see if this is the case.
|
|
y_tab_nodot=false
|
|
if test -f y_tab.c || test -f y_tab.h; then
|
|
y_tab_nodot=true
|
|
fi
|
|
|
|
# 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
|
|
# Handle y_tab.c and y_tab.h output by DOS
|
|
if $y_tab_nodot; then
|
|
case $from in
|
|
"y.tab.c") from=y_tab.c;;
|
|
"y.tab.h") from=y_tab.h;;
|
|
esac
|
|
fi
|
|
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:
|