* ylwrap: Revert to previous version.

1 files changed, 71 insertions, 170 deletions

diff --git a/ylwrap b/ylwrap
index e66a95b..2288ccd 100755
--- a/ylwrap
+++ b/ylwrap
@@ -1,11 +1,6 @@
 #! /bin/sh
 # ylwrap - wrapper for lex/yacc invocations.
-
-scriptversion=2004-09-10.20
-
-# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004
-#   Free Software Foundation, Inc.
-#
+# 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
@@ -22,81 +17,56 @@ scriptversion=2004-09-10.20
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
+# 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.
 
-# This file is maintained in Automake, please report
-# bugs to <bug-automake@gnu.org> or send patches to
-# <automake-patches@gnu.org>.
-
-case "$1" in
-  '')
-    echo "$0: No files given.  Try \`$0 --help' for more information." 1>&2
-    exit 1
-    ;;
-  --basedir)
-    basedir=$2
-    shift 2
-    ;;
-  -h|--h*)
-    cat <<\EOF
-Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
-
-Wrapper for lex/yacc invocations, renaming files as desired.
-
-  INPUT is the input file
-  OUTPUT is one file PROG generates
-  DESIRED is the file we actually want instead of OUTPUT
-  PROGRAM is program to run
-  ARGS are passed to PROG
-
-Any number of OUTPUT,DESIRED pairs may be used.
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
-    exit 0
-    ;;
-  -v|--v*)
-    echo "ylwrap $scriptversion"
-    exit 0
-    ;;
+# The program to run.
+prog="$1"
+shift
+# Make any relative path in $prog absolute.
+case "$prog" in
+ /* | [A-Za-z]:\\*) ;;
+ */*) prog="`pwd`/$prog" ;;
 esac
 
-
 # The input.
 input="$1"
 shift
 case "$input" in
-  [\\/]* | ?:[\\/]*)
+ /* | [A-Za-z]:\\*)
     # Absolute path; do nothing.
     ;;
-  *)
-    # Relative path.  Make it absolute.
+ *)
+    # 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
 
+# We don't want to use the absolute path if the input in the current
+# directory like when making a tar ball.
+input_base=`echo $input | sed -e 's|.*/||'`
+if test -f $input_base && cmp $input_base $input >/dev/null 2>&1; then
+  input=$input_base
+fi
+
 pairlist=
 while test "$#" -ne 0; do
-  if test "$1" = "--"; then
-    shift
-    break
-  fi
-  pairlist="$pairlist $1"
-  shift
+   if test "$1" = "--"; then
+      shift
+      break
+   fi
+   pairlist="$pairlist $1"
+   shift
 done
 
-# The program to run.
-prog="$1"
-shift
-# Make any relative path in $prog absolute.
-case "$prog" in
-  [\\/]* | ?:[\\/]*) ;;
-  *[\\/]*) prog="`pwd`/$prog" ;;
-esac
-
 # 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$$
@@ -104,119 +74,50 @@ trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15
 mkdir $dirname || exit 1
 
 cd $dirname
-
-case $# in
-  0) $prog "$input" ;;
-  *) $prog "$@" "$input" ;;
+case "$input" in
+ /* | [A-Za-z]:\\*)
+    # Absolute path; do nothing.
+    ;;
+ *)
+    # Make a symbolic link, hard link or hardcopy.
+    ln -s ../"$input" . > /dev/null 2>&1 || ln ../"$input" . > /dev/null 2>&1 || cp ../"$input" .
+    ;;
 esac
-ret=$?
-
-if test $ret -eq 0; then
-  set X $pairlist
-  shift
-  first=yes
-  # Since DOS filename conventions don't allow two dots,
-  # the DOS version of Bison writes out y_tab.c instead of y.tab.c
-  # and y_tab.h instead of y.tab.h. Test to see if this is the case.
-  y_tab_nodot="no"
-  if test -f y_tab.c || test -f y_tab.h; then
-    y_tab_nodot="yes"
-  fi
-
-  # The directory holding the input.
-  input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
-  # Quote $INPUT_DIR so we can use it in a regexp.
-  # FIXME: really we should care about more than `.' and `\'.
-  input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
-
-  while test "$#" -ne 0; do
-    from="$1"
-    # Handle y_tab.c and y_tab.h output by DOS
-    if test $y_tab_nodot = "yes"; then
-      if test $from = "y.tab.c"; then
-    	from="y_tab.c"
+$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
+	   /* | [A-Za-z]:\\*) target="$2";;
+	   *) target="../$2";;
+	 esac
+	 mv "$1" "$target" || status=$?
       else
-    	if test $from = "y.tab.h"; then
-    	  from="y_tab.h"
-    	fi
-      fi
-    fi
-    if test -f "$from"; then
-      # If $2 is an absolute path name, then just use that,
-      # otherwise prepend `../'.
-      case "$2" in
-    	[\\/]* | ?:[\\/]*) target="$2";;
-    	*) target="../$2";;
-      esac
-
-      # We do not want to overwrite a header file if it hasn't
-      # changed.  This avoid useless recompilations.  However the
-      # parser itself (the first file) should always be updated,
-      # because it is the destination of the .y.c rule in the
-      # Makefile.  Divert the output of all other files to a temporary
-      # file so we can compare them to existing versions.
-      if test $first = no; then
-	realtarget="$target"
-	target="tmp-`echo $target | sed s/.*[\\/]//g`"
+	 # 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 $first = yes; then
+	    status=1
+	 fi
       fi
-      # Edit out `#line' or `#' directives.
-      #
-      # We don't want the resulting debug information to point at
-      # an absolute srcdir; it is better for it to just mention the
-      # .y file with no path.
-      #
-      # We want to use the real output file name, not yy.lex.c for
-      # instance.
-      #
-      # We want the include guards to be adjusted too.
-      FROM=`echo "$from" | sed \
-            -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
-            -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
-      TARGET=`echo "$2" | sed \
-            -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
-            -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
-
-      sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
-          -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$?
-
-      # Check whether header files must be updated.
-      if test $first = no; then
-	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
-	  echo "$2" is unchanged
-	  rm -f "$target"
-	else
-          echo updating "$2"
-          mv -f "$target" "$realtarget"
-        fi
-      fi
-    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 $first = yes; then
-        ret=1
-      fi
-    fi
-    shift
-    shift
-    first=no
-  done
+      shift
+      shift
+      first=no
+   done
 else
-  ret=$?
+   status=$?
 fi
 
 # Remove the directory.
 cd ..
 rm -rf $dirname
 
-exit $ret
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-end: "$"
-# End:
+exit $status