| #! /bin/sh |
| # ylwrap - wrapper for lex/yacc invocations. |
| |
| scriptversion=2012-10-08.07; # UTC |
| |
| # Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, |
| # 2007, 2009, 2010, 2011 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, see <http://www.gnu.org/licenses/>. |
| |
| # 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. |
| |
| # This file is maintained in Automake, please report |
| # bugs to <bug-automake@gnu.org> or send patches to |
| # <automake-patches@gnu.org>. |
| |
| case "$1" in |
| '') |
| echo "$0: No files given. Try \`$0 --help' for more information." 1>&2 |
| exit 1 |
| ;; |
| --basedir) |
| basedir=$2 |
| shift 2 |
| ;; |
| -h|--h*) |
| cat <<\EOF |
| Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]... |
| |
| Wrapper for lex/yacc invocations, renaming files as desired. |
| |
| INPUT is the input file |
| OUTPUT is one file PROG generates |
| DESIRED is the file we actually want instead of OUTPUT |
| PROGRAM is program to run |
| ARGS are passed to PROG |
| |
| Any number of OUTPUT,DESIRED pairs may be used. |
| |
| Report bugs to <bug-automake@gnu.org>. |
| EOF |
| exit $? |
| ;; |
| -v|--v*) |
| echo "ylwrap $scriptversion" |
| exit $? |
| ;; |
| esac |
| |
| |
| # The input. |
| input="$1" |
| shift |
| case "$input" in |
| [\\/]* | ?:[\\/]*) |
| # Absolute path; do nothing. |
| ;; |
| *) |
| # Relative path. Make it absolute. |
| input="`pwd`/$input" |
| ;; |
| esac |
| |
| pairlist= |
| while test "$#" -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$$ |
| do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret' |
| trap "ret=129; $do_exit" 1 |
| trap "ret=130; $do_exit" 2 |
| trap "ret=141; $do_exit" 13 |
| trap "ret=143; $do_exit" 15 |
| mkdir $dirname || exit 1 |
| |
| cd $dirname |
| |
| case $# in |
| 0) "$prog" "$input" ;; |
| *) "$prog" "$@" "$input" ;; |
| esac |
| ret=$? |
| |
| if test $ret -eq 0; then |
| set X $pairlist |
| shift |
| first=yes |
| # Since DOS filename conventions don't allow two dots, |
| # the DOS version of Bison writes out y_tab.c instead of y.tab.c |
| # and y_tab.h instead of y.tab.h. Test to see if this is the case. |
| y_tab_nodot="no" |
| if test -f y_tab.c || test -f y_tab.h; then |
| y_tab_nodot="yes" |
| fi |
| |
| # The directory holding the input. |
| input_dir=`echo "$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 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'` |
| |
| 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 |
| |
| # We do not want to overwrite a header file if it hasn't |
| # changed. This avoid useless recompilations. However the |
| # parser itself (the first file) should always be updated, |
| # because it is the destination of the .y.c rule in the |
| # Makefile. Divert the output of all other files to a temporary |
| # file so we can compare them to existing versions. |
| if test $first = no; then |
| realtarget="$target" |
| target="tmp-`echo $target | sed s/.*[\\/]//g`" |
| fi |
| # Edit out `#line' or `#' directives. |
| # |
| # We don't want the resulting debug information to point at |
| # an absolute srcdir; it is better for it to just mention the |
| # .y file with no path. |
| # |
| # We want to use the real output file name, not yy.lex.c for |
| # instance. |
| # |
| # We want the include guards to be adjusted too. |
| FROM=`echo "$from" | sed \ |
| -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\ |
| -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'` |
| TARGET=`echo "$2" | sed \ |
| -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\ |
| -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'` |
| |
| sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \ |
| -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$? |
| |
| # Check whether header files must be updated. |
| if test $first = no; then |
| if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then |
| echo "$2" is unchanged |
| rm -f "$target" |
| else |
| echo updating "$2" |
| mv -f "$target" "$realtarget" |
| fi |
| fi |
| 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 $first = yes; then |
| ret=1 |
| fi |
| fi |
| shift |
| shift |
| first=no |
| done |
| else |
| ret=$? |
| fi |
| |
| # Remove the directory. |
| cd .. |
| rm -rf $dirname |
| |
| exit $ret |
| |
| # Local Variables: |
| # mode: shell-script |
| # sh-indentation: 2 |
| # eval: (add-hook 'write-file-hooks 'time-stamp) |
| # time-stamp-start: "scriptversion=" |
| # time-stamp-format: "%:y-%02m-%02d.%02H" |
| # time-stamp-time-zone: "UTC" |
| # time-stamp-end: "; # UTC" |
| # End: |