joachim99@2: #! /bin/sh
joachim99@2: # ylwrap - wrapper for lex/yacc invocations.
joachim99@2: # Copyright 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
joachim99@2: # Written by Tom Tromey <tromey@cygnus.com>.
joachim99@2: #
joachim99@2: # This program is free software; you can redistribute it and/or modify
joachim99@2: # it under the terms of the GNU General Public License as published by
joachim99@2: # the Free Software Foundation; either version 2, or (at your option)
joachim99@2: # any later version.
joachim99@2: #
joachim99@2: # This program is distributed in the hope that it will be useful,
joachim99@2: # but WITHOUT ANY WARRANTY; without even the implied warranty of
joachim99@2: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
joachim99@2: # GNU General Public License for more details.
joachim99@2: #
joachim99@2: # You should have received a copy of the GNU General Public License
joachim99@2: # along with this program; if not, write to the Free Software
joachim99@2: # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
joachim99@2: 
joachim99@2: # As a special exception to the GNU General Public License, if you
joachim99@2: # distribute this file as part of a program that contains a
joachim99@2: # configuration script generated by Autoconf, you may include it under
joachim99@2: # the same distribution terms that you use for the rest of that program.
joachim99@2: 
joachim99@2: # Usage:
joachim99@2: #     ylwrap INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
joachim99@2: # * INPUT is the input file
joachim99@2: # * OUTPUT is file PROG generates
joachim99@2: # * DESIRED is file we actually want
joachim99@2: # * PROGRAM is program to run
joachim99@2: # * ARGS are passed to PROG
joachim99@2: # Any number of OUTPUT,DESIRED pairs may be used.
joachim99@2: 
joachim99@2: # The input.
joachim99@2: input="$1"
joachim99@2: shift
joachim99@2: case "$input" in
joachim99@2:  [\\/]* | ?:[\\/]*)
joachim99@2:     # Absolute path; do nothing.
joachim99@2:     ;;
joachim99@2:  *)
joachim99@2:     # Relative path.  Make it absolute.
joachim99@2:     input="`pwd`/$input"
joachim99@2:     ;;
joachim99@2: esac
joachim99@2: 
joachim99@2: # The directory holding the input.
joachim99@2: input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
joachim99@2: # Quote $INPUT_DIR so we can use it in a regexp.
joachim99@2: # FIXME: really we should care about more than `.' and `\'.
joachim99@2: input_rx=`echo "$input_dir" | sed -e 's,\\\\,\\\\\\\\,g' -e 's,\\.,\\\\.,g'`
joachim99@2: 
joachim99@2: echo "got $input_rx"
joachim99@2: 
joachim99@2: pairlist=
joachim99@2: while test "$#" -ne 0; do
joachim99@2:    if test "$1" = "--"; then
joachim99@2:       shift
joachim99@2:       break
joachim99@2:    fi
joachim99@2:    pairlist="$pairlist $1"
joachim99@2:    shift
joachim99@2: done
joachim99@2: 
joachim99@2: # The program to run.
joachim99@2: prog="$1"
joachim99@2: shift
joachim99@2: # Make any relative path in $prog absolute.
joachim99@2: case "$prog" in
joachim99@2:  [\\/]* | ?:[\\/]*) ;;
joachim99@2:  *[\\/]*) prog="`pwd`/$prog" ;;
joachim99@2: esac
joachim99@2: 
joachim99@2: # FIXME: add hostname here for parallel makes that run commands on
joachim99@2: # other machines.  But that might take us over the 14-char limit.
joachim99@2: dirname=ylwrap$$
joachim99@2: trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15
joachim99@2: mkdir $dirname || exit 1
joachim99@2: 
joachim99@2: cd $dirname
joachim99@2: 
joachim99@2: $prog ${1+"$@"} "$input"
joachim99@2: status=$?
joachim99@2: 
joachim99@2: if test $status -eq 0; then
joachim99@2:    set X $pairlist
joachim99@2:    shift
joachim99@2:    first=yes
joachim99@2:    # Since DOS filename conventions don't allow two dots,
joachim99@2:    # the DOS version of Bison writes out y_tab.c instead of y.tab.c
joachim99@2:    # and y_tab.h instead of y.tab.h. Test to see if this is the case.
joachim99@2:    y_tab_nodot="no"
joachim99@2:    if test -f y_tab.c || test -f y_tab.h; then
joachim99@2:       y_tab_nodot="yes"
joachim99@2:    fi
joachim99@2: 
joachim99@2:    while test "$#" -ne 0; do
joachim99@2:       from="$1"
joachim99@2:       # Handle y_tab.c and y_tab.h output by DOS
joachim99@2:       if test $y_tab_nodot = "yes"; then
joachim99@2: 	 if test $from = "y.tab.c"; then
joachim99@2: 	    from="y_tab.c"
joachim99@2: 	 else
joachim99@2: 	    if test $from = "y.tab.h"; then
joachim99@2: 	       from="y_tab.h"
joachim99@2: 	    fi
joachim99@2: 	 fi
joachim99@2:       fi
joachim99@2:       if test -f "$from"; then
joachim99@2:          # If $2 is an absolute path name, then just use that,
joachim99@2:          # otherwise prepend `../'.
joachim99@2:          case "$2" in
joachim99@2: 	   [\\/]* | ?:[\\/]*) target="$2";;
joachim99@2: 	   *) target="../$2";;
joachim99@2: 	 esac
joachim99@2: 
joachim99@2: 	 # Edit out `#line' or `#' directives.  We don't want the
joachim99@2: 	 # resulting debug information to point at an absolute srcdir;
joachim99@2: 	 # it is better for it to just mention the .y file with no
joachim99@2: 	 # path.
joachim99@2: 	 sed -e "/^#/ s,$input_rx,," "$from" > "$target" || status=$?
joachim99@2:       else
joachim99@2: 	 # A missing file is only an error for the first file.  This
joachim99@2: 	 # is a blatant hack to let us support using "yacc -d".  If -d
joachim99@2: 	 # is not specified, we don't want an error when the header
joachim99@2: 	 # file is "missing".
joachim99@2: 	 if test $first = yes; then
joachim99@2: 	    status=1
joachim99@2: 	 fi
joachim99@2:       fi
joachim99@2:       shift
joachim99@2:       shift
joachim99@2:       first=no
joachim99@2:    done
joachim99@2: else
joachim99@2:    status=$?
joachim99@2: fi
joachim99@2: 
joachim99@2: # Remove the directory.
joachim99@2: cd ..
joachim99@2: rm -rf $dirname
joachim99@2: 
joachim99@2: exit $status