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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [ylwrap] - Diff between revs 816 and 829

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#! /bin/sh
 
# ylwrap - wrapper for lex/yacc invocations.
 
 
 
scriptversion=2009-04-28.21; # UTC
 
 
 
# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005,
 
# 2007, 2009 Free Software Foundation, Inc.
 
#
 
# Written by Tom Tromey .
 
#
 
# 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, see .
 
 
 
# 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.
 
 
 
# This file is maintained in Automake, please report
 
# bugs to  or send patches to
 
# .
 
 
 
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 .
 
EOF
 
    exit $?
 
    ;;
 
  -v|--v*)
 
    echo "ylwrap $scriptversion"
 
    exit $?
 
    ;;
 
esac
 
 
 
 
 
# The input.
 
input="$1"
 
shift
 
case "$input" in
 
  [\\/]* | ?:[\\/]*)
 
    # Absolute path; do nothing.
 
    ;;
 
  *)
 
    # Relative path.  Make it absolute.
 
    input="`pwd`/$input"
 
    ;;
 
esac
 
 
 
pairlist=
 
while test "$#" -ne 0; do
 
  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$$
 
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" ;;
 
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"
 
      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`"
 
      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
 
else
 
  ret=$?
 
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-time-zone: "UTC"
 
# time-stamp-end: "; # UTC"
 
# End:

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