1 | #! /bin/sh |
---|
2 | # ylwrap - wrapper for lex/yacc invocations. |
---|
3 | |
---|
4 | scriptversion=2004-09-10.20 |
---|
5 | |
---|
6 | # Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004 |
---|
7 | # Free Software Foundation, Inc. |
---|
8 | # |
---|
9 | # Written by Tom Tromey <tromey@cygnus.com>. |
---|
10 | # |
---|
11 | # This program is free software; you can redistribute it and/or modify |
---|
12 | # it under the terms of the GNU General Public License as published by |
---|
13 | # the Free Software Foundation; either version 2, or (at your option) |
---|
14 | # any later version. |
---|
15 | # |
---|
16 | # This program is distributed in the hope that it will be useful, |
---|
17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
19 | # GNU General Public License for more details. |
---|
20 | # |
---|
21 | # You should have received a copy of the GNU General Public License |
---|
22 | # along with this program; if not, write to the Free Software |
---|
23 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
---|
24 | |
---|
25 | # As a special exception to the GNU General Public License, if you |
---|
26 | # distribute this file as part of a program that contains a |
---|
27 | # configuration script generated by Autoconf, you may include it under |
---|
28 | # the same distribution terms that you use for the rest of that program. |
---|
29 | |
---|
30 | # This file is maintained in Automake, please report |
---|
31 | # bugs to <bug-automake@gnu.org> or send patches to |
---|
32 | # <automake-patches@gnu.org>. |
---|
33 | |
---|
34 | case "$1" in |
---|
35 | '') |
---|
36 | echo "$0: No files given. Try \`$0 --help' for more information." 1>&2 |
---|
37 | exit 1 |
---|
38 | ;; |
---|
39 | --basedir) |
---|
40 | basedir=$2 |
---|
41 | shift 2 |
---|
42 | ;; |
---|
43 | -h|--h*) |
---|
44 | cat <<\EOF |
---|
45 | Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]... |
---|
46 | |
---|
47 | Wrapper for lex/yacc invocations, renaming files as desired. |
---|
48 | |
---|
49 | INPUT is the input file |
---|
50 | OUTPUT is one file PROG generates |
---|
51 | DESIRED is the file we actually want instead of OUTPUT |
---|
52 | PROGRAM is program to run |
---|
53 | ARGS are passed to PROG |
---|
54 | |
---|
55 | Any number of OUTPUT,DESIRED pairs may be used. |
---|
56 | |
---|
57 | Report bugs to <bug-automake@gnu.org>. |
---|
58 | EOF |
---|
59 | exit 0 |
---|
60 | ;; |
---|
61 | -v|--v*) |
---|
62 | echo "ylwrap $scriptversion" |
---|
63 | exit 0 |
---|
64 | ;; |
---|
65 | esac |
---|
66 | |
---|
67 | |
---|
68 | # The input. |
---|
69 | input="$1" |
---|
70 | shift |
---|
71 | case "$input" in |
---|
72 | [\\/]* | ?:[\\/]*) |
---|
73 | # Absolute path; do nothing. |
---|
74 | ;; |
---|
75 | *) |
---|
76 | # Relative path. Make it absolute. |
---|
77 | input="`pwd`/$input" |
---|
78 | ;; |
---|
79 | esac |
---|
80 | |
---|
81 | pairlist= |
---|
82 | while test "$#" -ne 0; do |
---|
83 | if test "$1" = "--"; then |
---|
84 | shift |
---|
85 | break |
---|
86 | fi |
---|
87 | pairlist="$pairlist $1" |
---|
88 | shift |
---|
89 | done |
---|
90 | |
---|
91 | # The program to run. |
---|
92 | prog="$1" |
---|
93 | shift |
---|
94 | # Make any relative path in $prog absolute. |
---|
95 | case "$prog" in |
---|
96 | [\\/]* | ?:[\\/]*) ;; |
---|
97 | *[\\/]*) prog="`pwd`/$prog" ;; |
---|
98 | esac |
---|
99 | |
---|
100 | # FIXME: add hostname here for parallel makes that run commands on |
---|
101 | # other machines. But that might take us over the 14-char limit. |
---|
102 | dirname=ylwrap$$ |
---|
103 | trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15 |
---|
104 | mkdir $dirname || exit 1 |
---|
105 | |
---|
106 | cd $dirname |
---|
107 | |
---|
108 | case $# in |
---|
109 | 0) $prog "$input" ;; |
---|
110 | *) $prog "$@" "$input" ;; |
---|
111 | esac |
---|
112 | ret=$? |
---|
113 | |
---|
114 | if test $ret -eq 0; then |
---|
115 | set X $pairlist |
---|
116 | shift |
---|
117 | first=yes |
---|
118 | # Since DOS filename conventions don't allow two dots, |
---|
119 | # the DOS version of Bison writes out y_tab.c instead of y.tab.c |
---|
120 | # and y_tab.h instead of y.tab.h. Test to see if this is the case. |
---|
121 | y_tab_nodot="no" |
---|
122 | if test -f y_tab.c || test -f y_tab.h; then |
---|
123 | y_tab_nodot="yes" |
---|
124 | fi |
---|
125 | |
---|
126 | # The directory holding the input. |
---|
127 | input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'` |
---|
128 | # Quote $INPUT_DIR so we can use it in a regexp. |
---|
129 | # FIXME: really we should care about more than `.' and `\'. |
---|
130 | input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'` |
---|
131 | |
---|
132 | while test "$#" -ne 0; do |
---|
133 | from="$1" |
---|
134 | # Handle y_tab.c and y_tab.h output by DOS |
---|
135 | if test $y_tab_nodot = "yes"; then |
---|
136 | if test $from = "y.tab.c"; then |
---|
137 | from="y_tab.c" |
---|
138 | else |
---|
139 | if test $from = "y.tab.h"; then |
---|
140 | from="y_tab.h" |
---|
141 | fi |
---|
142 | fi |
---|
143 | fi |
---|
144 | if test -f "$from"; then |
---|
145 | # If $2 is an absolute path name, then just use that, |
---|
146 | # otherwise prepend `../'. |
---|
147 | case "$2" in |
---|
148 | [\\/]* | ?:[\\/]*) target="$2";; |
---|
149 | *) target="../$2";; |
---|
150 | esac |
---|
151 | |
---|
152 | # We do not want to overwrite a header file if it hasn't |
---|
153 | # changed. This avoid useless recompilations. However the |
---|
154 | # parser itself (the first file) should always be updated, |
---|
155 | # because it is the destination of the .y.c rule in the |
---|
156 | # Makefile. Divert the output of all other files to a temporary |
---|
157 | # file so we can compare them to existing versions. |
---|
158 | if test $first = no; then |
---|
159 | realtarget="$target" |
---|
160 | target="tmp-`echo $target | sed s/.*[\\/]//g`" |
---|
161 | fi |
---|
162 | # Edit out `#line' or `#' directives. |
---|
163 | # |
---|
164 | # We don't want the resulting debug information to point at |
---|
165 | # an absolute srcdir; it is better for it to just mention the |
---|
166 | # .y file with no path. |
---|
167 | # |
---|
168 | # We want to use the real output file name, not yy.lex.c for |
---|
169 | # instance. |
---|
170 | # |
---|
171 | # We want the include guards to be adjusted too. |
---|
172 | FROM=`echo "$from" | sed \ |
---|
173 | -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\ |
---|
174 | -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'` |
---|
175 | TARGET=`echo "$2" | sed \ |
---|
176 | -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\ |
---|
177 | -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'` |
---|
178 | |
---|
179 | sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \ |
---|
180 | -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$? |
---|
181 | |
---|
182 | # Check whether header files must be updated. |
---|
183 | if test $first = no; then |
---|
184 | if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then |
---|
185 | echo "$2" is unchanged |
---|
186 | rm -f "$target" |
---|
187 | else |
---|
188 | echo updating "$2" |
---|
189 | mv -f "$target" "$realtarget" |
---|
190 | fi |
---|
191 | fi |
---|
192 | else |
---|
193 | # A missing file is only an error for the first file. This |
---|
194 | # is a blatant hack to let us support using "yacc -d". If -d |
---|
195 | # is not specified, we don't want an error when the header |
---|
196 | # file is "missing". |
---|
197 | if test $first = yes; then |
---|
198 | ret=1 |
---|
199 | fi |
---|
200 | fi |
---|
201 | shift |
---|
202 | shift |
---|
203 | first=no |
---|
204 | done |
---|
205 | else |
---|
206 | ret=$? |
---|
207 | fi |
---|
208 | |
---|
209 | # Remove the directory. |
---|
210 | cd .. |
---|
211 | rm -rf $dirname |
---|
212 | |
---|
213 | exit $ret |
---|
214 | |
---|
215 | # Local Variables: |
---|
216 | # mode: shell-script |
---|
217 | # sh-indentation: 2 |
---|
218 | # eval: (add-hook 'write-file-hooks 'time-stamp) |
---|
219 | # time-stamp-start: "scriptversion=" |
---|
220 | # time-stamp-format: "%:y-%02m-%02d.%02H" |
---|
221 | # time-stamp-end: "$" |
---|
222 | # End: |
---|