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|
#! /bin/sh
# ylwrap - wrapper for lex/yacc invocations.
# Copyright 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
# Written by Tom Tromey <[email protected]>.
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# 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.
# Usage:
# ylwrap INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
# * INPUT is the input file
# * OUTPUT is file PROG generates
# * DESIRED is file we actually want
# * PROGRAM is program to run
# * ARGS are passed to PROG
# Any number of OUTPUT,DESIRED pairs may be used.
# The input.
input="$1"
shift
case "$input" in
[\\/]* | ?:[\\/]*)
# Absolute path; do nothing.
;;
*)
# Relative path. Make it absolute.
input="`pwd`/$input"
;;
esac
# The directory holding the input.
input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
# Quote $INPUT_DIR so we can use it in a regexp.
# FIXME: really we should care about more than `.' and `\'.
input_rx=`echo "$input_dir" | sed -e 's,\\\\,\\\\\\\\,g' -e 's,\\.,\\\\.,g'`
echo "got $input_rx"
pairlist=
while test "$#" -ne 0; do
if test "$1" = "--"; then
shift
break
fi
pairlist="$pairlist $1"
shift
done
# The program to run.
prog="$1"
shift
# Make any relative path in $prog absolute.
case "$prog" in
[\\/]* | ?:[\\/]*) ;;
*[\\/]*) prog="`pwd`/$prog" ;;
esac
# FIXME: add hostname here for parallel makes that run commands on
# other machines. But that might take us over the 14-char limit.
dirname=ylwrap$$
trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15
mkdir $dirname || exit 1
cd $dirname
$prog ${1+"$@"} "$input"
status=$?
if test $status -eq 0; then
set X $pairlist
shift
first=yes
# Since DOS filename conventions don't allow two dots,
# the DOS version of Bison writes out y_tab.c instead of y.tab.c
# and y_tab.h instead of y.tab.h. Test to see if this is the case.
y_tab_nodot="no"
if test -f y_tab.c || test -f y_tab.h; then
y_tab_nodot="yes"
fi
while test "$#" -ne 0; do
from="$1"
# Handle y_tab.c and y_tab.h output by DOS
if test $y_tab_nodot = "yes"; then
if test $from = "y.tab.c"; then
from="y_tab.c"
else
if test $from = "y.tab.h"; then
from="y_tab.h"
fi
fi
fi
if test -f "$from"; then
# If $2 is an absolute path name, then just use that,
# otherwise prepend `../'.
case "$2" in
[\\/]* | ?:[\\/]*) target="$2";;
*) target="../$2";;
esac
# Edit out `#line' or `#' directives. We don't want the
# resulting debug information to point at an absolute srcdir;
# it is better for it to just mention the .y file with no
# path.
sed -e "/^#/ s,$input_rx,," "$from" > "$target" || status=$?
else
# A missing file is only an error for the first file. This
# is a blatant hack to let us support using "yacc -d". If -d
# is not specified, we don't want an error when the header
# file is "missing".
if test $first = yes; then
status=1
fi
fi
shift
shift
first=no
done
else
status=$?
fi
# Remove the directory.
cd ..
rm -rf $dirname
exit $status
|
