ylwrap
上传用户:qaz666999
上传日期:2022-08-06
资源大小:2570k
文件大小:6k
- #! /bin/sh
- # ylwrap - wrapper for lex/yacc invocations.
- scriptversion=2009-04-28.21; # UTC
- # Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005,
- # 2007, 2009 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$$
- 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" ;;
- 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: