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144 lines
4.0 KiB
144 lines
4.0 KiB
#! /bin/sh |
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# ylwrap - wrapper for lex/yacc invocations. |
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# Copyright 1996, 1997, 1998, 1999 Free Software Foundation, Inc. |
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# Written by Tom Tromey <tromey@cygnus.com>. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2, or (at your option) |
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# any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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# As a special exception to the GNU General Public License, if you |
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# distribute this file as part of a program that contains a |
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# configuration script generated by Autoconf, you may include it under |
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# the same distribution terms that you use for the rest of that program. |
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# Usage: |
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# ylwrap INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]... |
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# * INPUT is the input file |
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# * OUTPUT is file PROG generates |
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# * DESIRED is file we actually want |
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# * PROGRAM is program to run |
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# * ARGS are passed to PROG |
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# Any number of OUTPUT,DESIRED pairs may be used. |
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# The input. |
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input="$1" |
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shift |
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case "$input" in |
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[\\/]* | ?:[\\/]*) |
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# Absolute path; do nothing. |
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;; |
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*) |
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# Relative path. Make it absolute. |
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input="`pwd`/$input" |
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;; |
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esac |
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# The directory holding the input. |
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input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'` |
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# Quote $INPUT_DIR so we can use it in a regexp. |
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# FIXME: really we should care about more than `.' and `\'. |
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input_rx=`echo "$input_dir" | sed -e 's,\\\\,\\\\\\\\,g' -e 's,\\.,\\\\.,g'` |
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echo "got $input_rx" |
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pairlist= |
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while test "$#" -ne 0; do |
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if test "$1" = "--"; then |
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shift |
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break |
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fi |
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pairlist="$pairlist $1" |
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shift |
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done |
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# The program to run. |
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prog="$1" |
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shift |
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# Make any relative path in $prog absolute. |
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case "$prog" in |
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[\\/]* | ?:[\\/]*) ;; |
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*[\\/]*) prog="`pwd`/$prog" ;; |
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esac |
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# FIXME: add hostname here for parallel makes that run commands on |
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# other machines. But that might take us over the 14-char limit. |
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dirname=ylwrap$$ |
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trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15 |
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mkdir $dirname || exit 1 |
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cd $dirname |
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$prog ${1+"$@"} "$input" |
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status=$? |
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if test $status -eq 0; then |
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set X $pairlist |
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shift |
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first=yes |
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# Since DOS filename conventions don't allow two dots, |
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# the DOS version of Bison writes out y_tab.c instead of y.tab.c |
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# and y_tab.h instead of y.tab.h. Test to see if this is the case. |
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y_tab_nodot="no" |
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if test -f y_tab.c || test -f y_tab.h; then |
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y_tab_nodot="yes" |
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fi |
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while test "$#" -ne 0; do |
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from="$1" |
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# Handle y_tab.c and y_tab.h output by DOS |
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if test $y_tab_nodot = "yes"; then |
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if test $from = "y.tab.c"; then |
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from="y_tab.c" |
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else |
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if test $from = "y.tab.h"; then |
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from="y_tab.h" |
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fi |
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fi |
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fi |
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if test -f "$from"; then |
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# If $2 is an absolute path name, then just use that, |
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# otherwise prepend `../'. |
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case "$2" in |
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[\\/]* | ?:[\\/]*) target="$2";; |
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*) target="../$2";; |
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esac |
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from_rx=`echo "$from" | sed -e 's,\\\\,\\\\\\\\,g' -e 's,\\.,\\\\.,g'` |
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# Edit out `#line' or `#' directives. We don't want the |
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# resulting debug information to point at an absolute srcdir; |
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# it is better for it to just mention the .y file with no |
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# path. |
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sed -e "/^#/ s,$input_rx,," -e "/^#/ s,$from_rx,$2," "$from" > "$target" || status=$? |
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else |
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# A missing file is only an error for the first file. This |
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# is a blatant hack to let us support using "yacc -d". If -d |
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# is not specified, we don't want an error when the header |
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# file is "missing". |
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if test $first = yes; then |
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status=1 |
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fi |
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fi |
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shift |
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shift |
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first=no |
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done |
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else |
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status=$? |
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fi |
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# Remove the directory. |
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cd .. |
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rm -rf $dirname |
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exit $status
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