2 # ylwrap - wrapper for lex/yacc invocations.
4 scriptversion=2012-07-13.14; # UTC
6 # Copyright (C) 1996-2012 Free Software Foundation, Inc.
8 # Written by Tom Tromey <tromey@cygnus.com>.
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 2, or (at your option)
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 # As a special exception to the GNU General Public License, if you
24 # distribute this file as part of a program that contains a
25 # configuration script generated by Autoconf, you may include it under
26 # the same distribution terms that you use for the rest of that program.
28 # This file is maintained in Automake, please report
29 # bugs to <bug-automake@gnu.org> or send patches to
30 # <automake-patches@gnu.org>.
35 */*|*\\*) printf '%s\n' "$1" | sed -e 's|\([\\/]\)[^\\/]*$|\1|';;
36 # Otherwise, we want the empty string (not ".").
42 # The CPP macro used to guard inclusion of FILE.
45 printf '%s\n' "$from" \
47 -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
48 -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'
51 # quote_for_sed [STRING]
52 # ----------------------
53 # Return STRING (or stdin) quoted to be used as a sed pattern.
58 1) printf '%s\n' "$1";;
60 | sed -e 's|[][\\.*]|\\&|g'
65 echo "$0: No files given. Try '$0 --help' for more information." 1>&2
74 Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
76 Wrapper for lex/yacc invocations, renaming files as desired.
78 INPUT is the input file
79 OUTPUT is one file PROG generates
80 DESIRED is the file we actually want instead of OUTPUT
81 PROGRAM is program to run
82 ARGS are passed to PROG
84 Any number of OUTPUT,DESIRED pairs may be used.
86 Report bugs to <bug-automake@gnu.org>.
91 echo "ylwrap $scriptversion"
100 # We'll later need for a correct munging of "#line" directives.
101 input_sub_rx=`get_dirname "$input" | quote_for_sed`
104 # Absolute path; do nothing.
107 # Relative path. Make it absolute.
112 # Since DOS filename conventions don't allow two dots,
113 # the DOS version of Bison writes out y_tab.c instead of y.tab.c
114 # and y_tab.h instead of y.tab.h. Test to see if this is the case.
116 if test -f y_tab.c || test -f y_tab.h; then
120 # The list of file to rename: FROM TO...
122 # A sed program to s/FROM/TO/g for all the FROM/TO so that, for
123 # instance, we rename #include "y.tab.h" into #include "parse.h"
124 # during the conversion from y.tab.c to parse.c.
126 while test "$#" -ne 0; do
127 if test "$1" = "--"; then
132 # Handle y_tab.c and y_tab.h output by DOS
133 if $y_tab_nodot; then
135 "y.tab.c") from=y_tab.c;;
136 "y.tab.h") from=y_tab.h;;
142 pairlist="$pairlist $from $to"
143 rename_sed="${rename_sed}s|"`quote_for_sed "$from"`"|$to|g;"
146 # The program to run.
149 # Make any relative path in $prog absolute.
151 [\\/]* | ?:[\\/]*) ;;
152 *[\\/]*) prog="`pwd`/$prog" ;;
155 # FIXME: add hostname here for parallel makes that run commands on
156 # other machines. But that might take us over the 14-char limit.
158 do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
159 trap "ret=129; $do_exit" 1
160 trap "ret=130; $do_exit" 2
161 trap "ret=141; $do_exit" 13
162 trap "ret=143; $do_exit" 15
163 mkdir $dirname || exit 1
168 0) "$prog" "$input" ;;
169 *) "$prog" "$@" "$input" ;;
173 if test $ret -eq 0; then
178 input_rx=`get_dirname "$input" | quote_for_sed`
180 while test "$#" -ne 0; do
183 if test -f "$from"; then
184 # If $2 is an absolute path name, then just use that,
185 # otherwise prepend '../'.
187 [\\/]* | ?:[\\/]*) target=$to;;
191 # Do not overwrite unchanged header files to avoid useless
192 # recompilations. Always update the parser itself (the first
193 # file): it is the destination of the .y.c rule in the Makefile.
194 # Divert the output of all other files to a temporary file so we
195 # can compare them to existing versions.
196 if test $first = no; then
198 target=tmp-`printf '%s\n' "$target" | sed s/.*[\\/]//g`
201 # Munge "#line" or "#" directives. Don't let the resulting
202 # debug information point at an absolute srcdir. Use the real
203 # output file name, not yy.lex.c for instance. Adjust the
204 # include guards too.
207 sed -e "/^#/!b" -e "s|$input_rx|$input_sub_rx|" -e "$rename_sed" \
208 -e "s|$FROM|$TARGET|" "$from" >"$target" || ret=$?
210 # Check whether header files must be updated.
211 if test $first = no; then
212 if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
213 echo "$to is unchanged"
217 mv -f "$target" "$realtarget"
221 # A missing file is only an error for the first file. This
222 # is a blatant hack to let us support using "yacc -d". If -d
223 # is not specified, we don't want an error when the header
225 if test $first = yes; then
237 # Remove the directory.
246 # eval: (add-hook 'write-file-hooks 'time-stamp)
247 # time-stamp-start: "scriptversion="
248 # time-stamp-format: "%:y-%02m-%02d.%02H"
249 # time-stamp-time-zone: "UTC"
250 # time-stamp-end: "; # UTC"