summaryrefslogtreecommitdiff
path: root/ylwrap
diff options
context:
space:
mode:
Diffstat (limited to 'ylwrap')
-rwxr-xr-xylwrap107
1 files changed, 107 insertions, 0 deletions
diff --git a/ylwrap b/ylwrap
new file mode 100755
index 00000000000..b5b62184383
--- /dev/null
+++ b/ylwrap
@@ -0,0 +1,107 @@
+#! /bin/sh
+# ylwrap - wrapper for lex/yacc invocations.
+# Copyright (C) 1996, 1997 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# Usage:
+# ylwrap PROGRAM INPUT [OUTPUT DESIRED]... -- [ARGS]...
+# * PROGRAM is program to run.
+# * INPUT is the input file
+# * OUTPUT is file PROG generates
+# * DESIRED is file we actually want
+# * ARGS are passed to PROG
+# Any number of OUTPUT,DESIRED pairs may be used.
+
+# The program to run.
+prog="$1"
+shift
+# Make any relative path in $prog absolute.
+case "$prog" in
+ /*) ;;
+ */*) prog="`pwd`/$prog" ;;
+esac
+
+# The input.
+input="$1"
+shift
+case "$input" in
+ /*)
+ # Absolute path; do nothing.
+ ;;
+ *)
+ # Relative path. Make it absolute. Why? Because otherwise any
+ # debugging info in the generated file will point to the wrong
+ # place. This is really gross.
+ input="`pwd`/$input"
+ ;;
+esac
+
+pairlist=
+while test "$#" -ne 0; do
+ if test "$1" = "--"; then
+ shift
+ break
+ fi
+ pairlist="$pairlist $1"
+ shift
+done
+
+# 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 $dirname
+$prog ${1+"$@"} "$input"
+status=$?
+
+if test $status -eq 0; then
+ set X $pairlist
+ shift
+ first=yes
+ while test "$#" -ne 0; do
+ if test -f "$1"; then
+ # If $2 is an absolute path name, then just use that,
+ # otherwise prepend `../'.
+ case "$2" in
+ /*) target="$2";;
+ *) target="../$2";;
+ esac
+ mv "$1" "$target" || status=$?
+ 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 $first = yes; then
+ status=1
+ fi
+ fi
+ shift
+ shift
+ first=no
+ done
+else
+ status=$?
+fi
+
+# Remove the directory.
+cd ..
+rm -rf $dirname
+
+exit $status