b91e2391 |
1 | #! /bin/sh |
2 | # ylwrap - wrapper for lex/yacc invocations. |
3 | # Copyright (C) 1996, 1997 Free Software Foundation, Inc. |
4 | # Written by Tom Tromey <tromey@cygnus.com>. |
5 | # |
6 | # This program is free software; you can redistribute it and/or modify |
7 | # it under the terms of the GNU General Public License as published by |
8 | # the Free Software Foundation; either version 2, or (at your option) |
9 | # any later version. |
10 | # |
11 | # This program is distributed in the hope that it will be useful, |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | # GNU General Public License for more details. |
15 | # |
16 | # You should have received a copy of the GNU General Public License |
17 | # along with this program; if not, write to the Free Software |
18 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
19 | |
20 | # Usage: |
21 | # ylwrap PROGRAM INPUT [OUTPUT DESIRED]... -- [ARGS]... |
22 | # * PROGRAM is program to run. |
23 | # * INPUT is the input file |
24 | # * OUTPUT is file PROG generates |
25 | # * DESIRED is file we actually want |
26 | # * ARGS are passed to PROG |
27 | # Any number of OUTPUT,DESIRED pairs may be used. |
28 | |
29 | # The program to run. |
30 | prog="$1" |
31 | shift |
32 | |
33 | # The input. |
34 | input="$1" |
35 | shift |
36 | case "$input" in |
37 | /*) |
38 | # Absolute path; do nothing. |
39 | ;; |
40 | *) |
41 | # Relative path. Make it absolute. Why? Because otherwise any |
42 | # debugging info in the generated file will point to the wrong |
43 | # place. This is really gross. |
44 | input="`pwd`/$input" |
45 | ;; |
46 | esac |
47 | |
48 | pairlist= |
49 | while test "$#" -ne 0; do |
50 | if test "$1" = "--"; then |
51 | break |
52 | fi |
53 | pairlist="$pairlist $1" |
54 | shift |
55 | done |
56 | |
57 | # FIXME: add hostname here for parallel makes that run commands on |
58 | # other machines. But that might take us over the 14-char limit. |
59 | dirname=ylwrap$$ |
60 | trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15 |
61 | mkdir $dirname || exit 1 |
62 | |
63 | cd $dirname |
64 | $prog ${1+"$@"} "$input" |
65 | status=$? |
66 | |
67 | if test $status -eq 0; then |
68 | set X $pairlist |
69 | shift |
70 | first=yes |
71 | while test "$#" -ne 0; do |
72 | if test -f "$1"; then |
73 | # If $2 is an absolute path name, then just use that, |
74 | # otherwise prepend `../'. |
75 | case "$2" in |
76 | /*) target="$2";; |
77 | *) target="../$2";; |
78 | esac |
79 | mv "$1" "$target" || status=$? |
80 | else |
81 | # A missing file is only an error for the first file. This |
82 | # is a blatant hack to let us support using "yacc -d". If -d |
83 | # is not specified, we don't want an error when the header |
84 | # file is "missing". |
85 | if test $first = yes; then |
86 | status=1 |
87 | fi |
88 | fi |
89 | shift |
90 | shift |
91 | first=no |
92 | done |
93 | else |
94 | status=$? |
95 | fi |
96 | |
97 | # Remove the directory. |
98 | cd .. |
99 | rm -rf $dirname |
100 | |
101 | exit $status |