diff options
Diffstat (limited to 'ylwrap')
| -rwxr-xr-x | ylwrap | 241 |
1 files changed, 71 insertions, 170 deletions
@@ -1,11 +1,6 @@ #! /bin/sh # ylwrap - wrapper for lex/yacc invocations. - -scriptversion=2004-09-10.20 - -# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004 -# Free Software Foundation, Inc. -# +# Copyright (C) 1996, 1997 Free Software Foundation, Inc. # Written by Tom Tromey <tromey@cygnus.com>. # # This program is free software; you can redistribute it and/or modify @@ -22,81 +17,56 @@ scriptversion=2004-09-10.20 # 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 PROGRAM INPUT [OUTPUT DESIRED]... -- [ARGS]... +# * PROGRAM is program to run. +# * INPUT is the input file +# * OUTPUT is file PROG generates +# * DESIRED is file we actually want +# * ARGS are passed to PROG +# Any number of OUTPUT,DESIRED pairs may be used. -# 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 0 - ;; - -v|--v*) - echo "ylwrap $scriptversion" - exit 0 - ;; +# The program to run. +prog="$1" +shift +# Make any relative path in $prog absolute. +case "$prog" in + /* | [A-Za-z]:\\*) ;; + */*) prog="`pwd`/$prog" ;; esac - # The input. input="$1" shift case "$input" in - [\\/]* | ?:[\\/]*) + /* | [A-Za-z]:\\*) # Absolute path; do nothing. ;; - *) - # Relative path. Make it absolute. + *) + # Relative path. Make it absolute. Why? Because otherwise any + # debugging info in the generated file will point to the wrong + # place. This is really gross. input="`pwd`/$input" ;; esac +# We don't want to use the absolute path if the input in the current +# directory like when making a tar ball. +input_base=`echo $input | sed -e 's|.*/||'` +if test -f $input_base && cmp $input_base $input >/dev/null 2>&1; then + input=$input_base +fi + pairlist= while test "$#" -ne 0; do - if test "$1" = "--"; then - shift - break - fi - pairlist="$pairlist $1" - shift + 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$$ @@ -104,119 +74,50 @@ trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15 mkdir $dirname || exit 1 cd $dirname - -case $# in - 0) $prog "$input" ;; - *) $prog "$@" "$input" ;; +case "$input" in + /* | [A-Za-z]:\\*) + # Absolute path; do nothing. + ;; + *) + # Make a symbolic link, hard link or hardcopy. + ln -s ../"$input" . > /dev/null 2>&1 || ln ../"$input" . > /dev/null 2>&1 || cp ../"$input" . + ;; esac -ret=$? - -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 $from = "y.tab.c"; then - from="y_tab.c" +$prog ${1+"$@"} "$input" +status=$? + +if test $status -eq 0; then + set X $pairlist + shift + first=yes + while test "$#" -ne 0; do + if test -f "$1"; then + # If $2 is an absolute path name, then just use that, + # otherwise prepend `../'. + case "$2" in + /* | [A-Za-z]:\\*) target="$2";; + *) target="../$2";; + esac + mv "$1" "$target" || status=$? 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`" + # 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 $first = yes; then + status=1 + fi fi - # Edit out `#line' or `#' directives. - # - # We don't want the resulting debug information to point at - # an absolute srcdir; it is better for it to just mention the - # .y file with no path. - # - # We want to use the real output file name, not yy.lex.c for - # instance. - # - # We want the include guards to be adjusted too. - FROM=`echo "$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 $first = yes; then - ret=1 - fi - fi - shift - shift - first=no - done + shift + shift + first=no + done else - ret=$? + status=$? fi # Remove the directory. cd .. rm -rf $dirname -exit $ret - -# Local Variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-end: "$" -# End: +exit $status |