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63 lines
1.7 KiB
Bash
Executable File
63 lines
1.7 KiB
Bash
Executable File
#! /bin/sh
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# ylwrap - wrapper for lex/yacc invocations.
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# Written by Tom Tromey <tromey@cygnus.com>, Aug 11 1996
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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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# Usage:
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# ylwrap PROG [OUTPUT DESIRED]... -- [ARGS]...
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# * PROG is program to run.
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# * OUTPUT is file PROG generates
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# * DESIRED is file we actually want
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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 program to run.
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prog="$1"
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shift
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pairlist=
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while test "$#" -ne 0; do
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if test "$1" = "--"; then
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break
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fi
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pairlist="$pairlist $1"
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shift
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done
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$prog ${1+"$@"} || exit $?
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set X $pairlist
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shift
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status=0
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first=yes
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while test "$#" -ne 0; do
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if test -f "$1"; then
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mv "$1" "$2" || status=$?
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else
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# A missing file is only an error for the first file. This is a
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# blatant hack to let us support using "yacc -d". If -d is not
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# specified, we don't want an error when the header file is
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# "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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exit $status
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