[deb_xorg-server.git] / ylwrap

#! /bin/sh
# ylwrap - wrapper for lex/yacc invocations.

scriptversion=2011-08-25.18; # UTC

# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005,
# 2007, 2009, 2010, 2011 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, see <http://www.gnu.org/licenses/>.

# 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 <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 $?
    ;;
  -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$$
do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
trap "ret=129; $do_exit" 1
trap "ret=130; $do_exit" 2
trap "ret=141; $do_exit" 13
trap "ret=143; $do_exit" 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:
Commit	Line	Data
a09e091a JB	1	#! /bin/sh
	2	# ylwrap - wrapper for lex/yacc invocations.
	3
	4	scriptversion=2011-08-25.18; # UTC
	5
	6	# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005,
	7	# 2007, 2009, 2010, 2011 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, see <http://www.gnu.org/licenses/>.
	23
	24	# As a special exception to the GNU General Public License, if you
	25	# distribute this file as part of a program that contains a
	26	# configuration script generated by Autoconf, you may include it under
	27	# the same distribution terms that you use for the rest of that program.
	28
	29	# This file is maintained in Automake, please report
	30	# bugs to <bug-automake@gnu.org> or send patches to
	31	# <automake-patches@gnu.org>.
	32
	33	case "$1" in
	34	'')
	35	echo "$0: No files given. Try \`$0 --help' for more information." 1>&2
	36	exit 1
	37	;;
	38	--basedir)
	39	basedir=$2
	40	shift 2
	41	;;
	42	-h\|--h*)
	43	cat <<\EOF
	44	Usage: ylwrap [--help\|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
	45
	46	Wrapper for lex/yacc invocations, renaming files as desired.
	47
	48	INPUT is the input file
	49	OUTPUT is one file PROG generates
	50	DESIRED is the file we actually want instead of OUTPUT
	51	PROGRAM is program to run
	52	ARGS are passed to PROG
	53
	54	Any number of OUTPUT,DESIRED pairs may be used.
	55
	56	Report bugs to <bug-automake@gnu.org>.
	57	EOF
	58	exit $?
	59	;;
	60	-v\|--v*)
	61	echo "ylwrap $scriptversion"
	62	exit $?
	63	;;
	64	esac
65
66
67	# The input.
68	input="$1"
69	shift
70	case "$input" in
71	[\\/]* \| ?:[\\/]*)
72	# Absolute path; do nothing.
73	;;
74	*)
75	# Relative path. Make it absolute.
76	input="`pwd`/$input"
77	;;
78	esac
79
80	pairlist=
81	while test "$#" -ne 0; do
82	if test "$1" = "--"; then
83	shift
84	break
85	fi
86	pairlist="$pairlist $1"
87	shift
88	done
89
90	# The program to run.
91	prog="$1"
92	shift
93	# Make any relative path in $prog absolute.
94	case "$prog" in
95	[\\/]* \| ?:[\\/]*) ;;
96	[\\/]) prog="`pwd`/$prog" ;;
97	esac
98
99	# FIXME: add hostname here for parallel makes that run commands on
100	# other machines. But that might take us over the 14-char limit.
101	dirname=ylwrap$$
102	do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
103	trap "ret=129; $do_exit" 1
104	trap "ret=130; $do_exit" 2
105	trap "ret=141; $do_exit" 13
106	trap "ret=143; $do_exit" 15
107	mkdir $dirname \|\| exit 1
108
109	cd $dirname
110
111	case $# in
112	0) "$prog" "$input" ;;
113	*) "$prog" "$@" "$input" ;;
114	esac
115	ret=$?
116
117	if test $ret -eq 0; then
118	set X $pairlist
119	shift
120	first=yes
121	# Since DOS filename conventions don't allow two dots,
122	# the DOS version of Bison writes out y_tab.c instead of y.tab.c
123	# and y_tab.h instead of y.tab.h. Test to see if this is the case.
124	y_tab_nodot="no"
125	if test -f y_tab.c \|\| test -f y_tab.h; then
126	y_tab_nodot="yes"
127	fi
128
129	# The directory holding the input.
130	input_dir=`echo "$input" \| sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
131	# Quote $INPUT_DIR so we can use it in a regexp.
132	# FIXME: really we should care about more than `.' and `\'.
133	input_rx=`echo "$input_dir" \| sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
134
135	while test "$#" -ne 0; do
136	from="$1"
137	# Handle y_tab.c and y_tab.h output by DOS
138	if test $y_tab_nodot = "yes"; then
139	if test $from = "y.tab.c"; then
140	from="y_tab.c"
141	else
142	if test $from = "y.tab.h"; then
143	from="y_tab.h"
144	fi
145	fi
146	fi
147	if test -f "$from"; then
148	# If $2 is an absolute path name, then just use that,
149	# otherwise prepend `../'.
150	case "$2" in
151	[\\/]* \| ?:[\\/]*) target="$2";;
152	*) target="../$2";;
153	esac
154
155	# We do not want to overwrite a header file if it hasn't
156	# changed. This avoid useless recompilations. However the
157	# parser itself (the first file) should always be updated,
158	# because it is the destination of the .y.c rule in the
159	# Makefile. Divert the output of all other files to a temporary
160	# file so we can compare them to existing versions.
161	if test $first = no; then
162	realtarget="$target"
163	target="tmp-`echo $target \| sed s/.*[\\/]//g`"
164	fi
165	# Edit out `#line' or `#' directives.
166	#
167	# We don't want the resulting debug information to point at
168	# an absolute srcdir; it is better for it to just mention the
169	# .y file with no path.
170	#
171	# We want to use the real output file name, not yy.lex.c for
172	# instance.
173	#
174	# We want the include guards to be adjusted too.
175	FROM=`echo "$from" \| sed \
176	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
177	-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
178	TARGET=`echo "$2" \| sed \
179	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
180	-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
181
182	sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
183	-e "s,$FROM,$TARGET," "$from" >"$target" \|\| ret=$?
184
185	# Check whether header files must be updated.
186	if test $first = no; then
187	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
188	echo "$2" is unchanged
189	rm -f "$target"
190	else
191	echo updating "$2"
192	mv -f "$target" "$realtarget"
193	fi
194	fi
195	else
196	# A missing file is only an error for the first file. This
197	# is a blatant hack to let us support using "yacc -d". If -d
198	# is not specified, we don't want an error when the header
199	# file is "missing".
200	if test $first = yes; then
201	ret=1
202	fi
203	fi
204	shift
205	shift
206	first=no
207	done
208	else
209	ret=$?
210	fi
211
212	# Remove the directory.
213	cd ..
214	rm -rf $dirname
215
216	exit $ret
217
218	# Local Variables:
219	# mode: shell-script
220	# sh-indentation: 2
221	# eval: (add-hook 'write-file-hooks 'time-stamp)
222	# time-stamp-start: "scriptversion="
223	# time-stamp-format: "%:y-%02m-%02d.%02H"
224	# time-stamp-time-zone: "UTC"
225	# time-stamp-end: "; # UTC"
226	# End: