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Diffstat (limited to 'admin/ylwrap')
| -rw-r--r-- | admin/ylwrap | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/admin/ylwrap b/admin/ylwrap new file mode 100644 index 0000000..5ea68e4 --- /dev/null +++ b/admin/ylwrap @@ -0,0 +1,143 @@ +#! /bin/sh +# ylwrap - wrapper for lex/yacc invocations. +# Copyright 1996, 1997, 1998, 1999 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, 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 |