2 # ylwrap - wrapper for lex/yacc invocations.
4 scriptversion=2013-01-12.17; # UTC
6 # Copyright (C) 1996-2013 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
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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.
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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
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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.
47 -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
48 -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g' \
52 # quote_for_sed [STRING]
53 # ----------------------
54 # Return STRING (or stdin) quoted to be used as a sed pattern.
59 1) printf '%s\n' "$1";;
61 | sed -e 's|[][\\.*]|\\&|g'
66 echo "$0: No files given. Try '$0 --help' for more information." 1>&2
75 Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
77 Wrapper for lex/yacc invocations, renaming files as desired.
79 INPUT is the input file
80 OUTPUT is one file PROG generates
81 DESIRED is the file we actually want instead of OUTPUT
82 PROGRAM is program to run
83 ARGS are passed to PROG
85 Any number of OUTPUT,DESIRED pairs may be used.
87 Report bugs to <bug-automake@gnu.org>.
92 echo "ylwrap $scriptversion"
101 # We'll later need for a correct munging of "#line" directives.
102 input_sub_rx=`get_dirname "$input" | quote_for_sed`
105 # Absolute path; do nothing.
108 # Relative path. Make it absolute.
112 input_rx=`get_dirname "$input" | quote_for_sed`
114 # Since DOS filename conventions don't allow two dots,
115 # the DOS version of Bison writes out y_tab.c instead of y.tab.c
116 # and y_tab.h instead of y.tab.h. Test to see if this is the case.
118 if test -f y_tab.c || test -f y_tab.h; then
122 # The parser itself, the first file, is the destination of the .y.c
123 # rule in the Makefile.
126 # A sed program to s/FROM/TO/g for all the FROM/TO so that, for
127 # instance, we rename #include "y.tab.h" into #include "parse.h"
128 # during the conversion from y.tab.c to parse.c.
131 # Also rename header guards, as Bison 2.7 for instance uses its header
132 # guard in its implementation file.
133 sed_fix_header_guards=
135 while test $# -ne 0; do
136 if test x"$1" = x"--"; then
141 # Handle y_tab.c and y_tab.h output by DOS
142 if $y_tab_nodot; then
144 "y.tab.c") from=y_tab.c;;
145 "y.tab.h") from=y_tab.h;;
151 sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;"
152 sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;"
155 # The program to run.
158 # Make any relative path in $prog absolute.
160 [\\/]* | ?:[\\/]*) ;;
161 *[\\/]*) prog=`pwd`/$prog ;;
165 do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
166 trap "ret=129; $do_exit" 1
167 trap "ret=130; $do_exit" 2
168 trap "ret=141; $do_exit" 13
169 trap "ret=143; $do_exit" 15
170 mkdir $dirname || exit 1
175 0) "$prog" "$input" ;;
176 *) "$prog" "$@" "$input" ;;
180 if test $ret -eq 0; then
183 to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"`
184 if test -f "$from"; then
185 # If $2 is an absolute path name, then just use that,
186 # otherwise prepend '../'.
188 [\\/]* | ?:[\\/]*) target=$to;;
192 # Do not overwrite unchanged header files to avoid useless
193 # recompilations. Always update the parser itself: it is the
194 # destination of the .y.c rule in the Makefile. Divert the
195 # output of all other files to a temporary file so we can
196 # compare them to existing versions.
197 if test $from != $parser; then
199 target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'`
202 # Munge "#line" or "#" directives. Don't let the resulting
203 # debug information point at an absolute srcdir. Use the real
204 # output file name, not yy.lex.c for instance. Adjust the
205 # include guards too.
207 -e "s|$input_rx|$input_sub_rx|" \
208 -e "$sed_fix_filenames" \
209 -e "$sed_fix_header_guards" \
210 "$from" >"$target" || ret=$?
212 # Check whether files must be updated.
213 if test "$from" != "$parser"; then
214 if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
215 echo "$to is unchanged"
219 mv -f "$target" "$realtarget"
223 # A missing file is only an error for the parser. This is a
224 # blatant hack to let us support using "yacc -d". If -d is not
225 # specified, don't fail when the header file is "missing".
226 if test "$from" = "$parser"; then
233 # Remove the directory.
242 # eval: (add-hook 'write-file-hooks 'time-stamp)
243 # time-stamp-start: "scriptversion="
244 # time-stamp-format: "%:y-%02m-%02d.%02H"
245 # time-stamp-time-zone: "UTC"
246 # time-stamp-end: "; # UTC"