[ViewVC] Annotation of: svn/ircd-hybrid/trunk/ylwrap

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

scriptversion=2012-12-21.17; # UTC

# Copyright (C) 1996-2012 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>.

get_dirname ()
{
  case $1 in
    */*|*\\*) printf '%s\n' "$1" | sed -e 's|\([\\/]\)[^\\/]*$|\1|';;
    # Otherwise,  we want the empty string (not ".").
  esac
}

# guard FILE
# ----------
# The CPP macro used to guard inclusion of FILE.
guard()
{
  printf '%s\n' "$1"                                                    \
    | sed                                                               \
        -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'   \
        -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'                        \
        -e 's/__*/_/g'
}

# quote_for_sed [STRING]
# ----------------------
# Return STRING (or stdin) quoted to be used as a sed pattern.
quote_for_sed ()
{
  case $# in
    0) cat;;
    1) printf '%s\n' "$1";;
  esac \
    | sed -e 's|[][\\.*]|\\&|g'
}

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="$1"
shift
# We'll later need for a correct munging of "#line" directives.
input_sub_rx=`get_dirname "$input" | quote_for_sed`
case "$input" in
  [\\/]* | ?:[\\/]*)
    # Absolute path; do nothing.
    ;;
  *)
    # Relative path.  Make it absolute.
    input="`pwd`/$input"
    ;;
esac
input_rx=`get_dirname "$input" | quote_for_sed`

# 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=false
if test -f y_tab.c || test -f y_tab.h; then
  y_tab_nodot=true
fi

# The parser itself, the first file, is the destination of the .y.c
# rule in the Makefile.
parser=$1

# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
# instance, we rename #include "y.tab.h" into #include "parse.h"
# during the conversion from y.tab.c to parse.c.
sed_fix_filenames=

# Also rename header guards, as Bison 2.7 for instance uses its header
# guard in its implementation file.
sed_fix_header_guards=

while test "$#" -ne 0; do
  if test "$1" = "--"; then
    shift
    break
  fi
  from=$1
  # Handle y_tab.c and y_tab.h output by DOS
  if $y_tab_nodot; then
    case $from in
      "y.tab.c") from=y_tab.c;;
      "y.tab.h") from=y_tab.h;;
    esac
  fi
  shift
  to=$1
  shift
  sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;"
  sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;"
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 $ret -eq 0; then
  for from in *
  do
    to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"`
    if test -f "$from"; then
      # If $2 is an absolute path name, then just use that,
      # otherwise prepend '../'.
      case $to in
        [\\/]* | ?:[\\/]*) target=$to;;
        *) target="../$to";;
      esac

      # Do not overwrite unchanged header files to avoid useless
      # recompilations.  Always update the parser itself: 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 $from != $parser; then
        realtarget="$target"
        target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'`
      fi

      # Munge "#line" or "#" directives.  Don't let the resulting
      # debug information point at an absolute srcdir.  Use the real
      # output file name, not yy.lex.c for instance.  Adjust the
      # include guards too.
      sed -e "/^#/!b"                           \
          -e "s|$input_rx|$input_sub_rx|"       \
          -e "$sed_fix_filenames"               \
          -e "$sed_fix_header_guards"           \
        "$from" >"$target" || ret=$?

      # Check whether files must be updated.
      if test "$from" != "$parser"; then
        if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
          echo "$to is unchanged"
          rm -f "$target"
        else
          echo "updating $to"
          mv -f "$target" "$realtarget"
        fi
      fi
    else
      # A missing file is only an error for the parser.  This is a
      # blatant hack to let us support using "yacc -d".  If -d is not
      # specified, don't fail when the header file is "missing".
      if test "$from" = "$parser"; then
        ret=1
      fi
    fi
  done
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:
Revision:	1720
Committed:	Fri Dec 28 21:06:21 2012 UTC (13 years, 6 months ago) by michael
File size:	7006 byte(s)
Log Message:	- automake 1.13
#	User	Rev	Content
1	michael	912	#! /bin/sh
2			# ylwrap - wrapper for lex/yacc invocations.
3
4	michael	1720	scriptversion=2012-12-21.17; # UTC
5	michael	912
6	michael	1375	# Copyright (C) 1996-2012 Free Software Foundation, Inc.
7	michael	912	#
8			# Written by Tom Tromey <tromey@cygnus.com>.
9			#
10			# This program is free software; you can redistribute it and/or modify
11			# it under the terms of the GNU General Public License as published by
12			# the Free Software Foundation; either version 2, or (at your option)
13			# any later version.
14			#
15			# This program is distributed in the hope that it will be useful,
16			# but WITHOUT ANY WARRANTY; without even the implied warranty of
17			# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			# GNU General Public License for more details.
19			#
20			# You should have received a copy of the GNU General Public License
21	michael	945	# along with this program. If not, see <http://www.gnu.org/licenses/>.
22	michael	912
23			# As a special exception to the GNU General Public License, if you
24			# distribute this file as part of a program that contains a
25			# configuration script generated by Autoconf, you may include it under
26			# the same distribution terms that you use for the rest of that program.
27
28			# This file is maintained in Automake, please report
29			# bugs to <bug-automake@gnu.org> or send patches to
30			# <automake-patches@gnu.org>.
31
32	michael	1504	get_dirname ()
33			{
34			case $1 in
35			/\|\\) printf '%s\n' "$1" \| sed -e 's\|\([\\/]\)[^\\/]*$\|\1\|';;
36			# Otherwise, we want the empty string (not ".").
37			esac
38			}
39
40			# guard FILE
41			# ----------
42			# The CPP macro used to guard inclusion of FILE.
43			guard()
44			{
45	michael	1720	printf '%s\n' "$1" \
46			\| sed \
47			-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
48			-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g' \
49			-e 's/__*/_/g'
50	michael	1504	}
51
52			# quote_for_sed [STRING]
53			# ----------------------
54			# Return STRING (or stdin) quoted to be used as a sed pattern.
55			quote_for_sed ()
56			{
57			case $# in
58			0) cat;;
59			1) printf '%s\n' "$1";;
60			esac \
61			\| sed -e 's\|[][\\.*]\|\\&\|g'
62			}
63
64	michael	912	case "$1" in
65			'')
66	michael	1375	echo "$0: No files given. Try '$0 --help' for more information." 1>&2
67	michael	912	exit 1
68			;;
69			--basedir)
70			basedir=$2
71			shift 2
72			;;
73			-h\|--h*)
74			cat <<\EOF
75			Usage: ylwrap [--help\|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
76
77			Wrapper for lex/yacc invocations, renaming files as desired.
78
79			INPUT is the input file
80			OUTPUT is one file PROG generates
81			DESIRED is the file we actually want instead of OUTPUT
82			PROGRAM is program to run
83			ARGS are passed to PROG
84
85			Any number of OUTPUT,DESIRED pairs may be used.
86
87			Report bugs to <bug-automake@gnu.org>.
88			EOF
89			exit $?
90			;;
91			-v\|--v*)
92			echo "ylwrap $scriptversion"
93			exit $?
94			;;
95			esac
96
97
98			# The input.
99			input="$1"
100			shift
101	michael	1425	# We'll later need for a correct munging of "#line" directives.
102			input_sub_rx=`get_dirname "$input" \| quote_for_sed`
103	michael	912	case "$input" in
104			[\\/]* \| ?:[\\/]*)
105			# Absolute path; do nothing.
106			;;
107			*)
108			# Relative path. Make it absolute.
109			input="`pwd`/$input"
110			;;
111			esac
112	michael	1504	input_rx=`get_dirname "$input" \| quote_for_sed`
113	michael	912
114	michael	1504	# Since DOS filename conventions don't allow two dots,
115			# the DOS version of Bison writes out y_tab.c instead of y.tab.c
116			# and y_tab.h instead of y.tab.h. Test to see if this is the case.
117			y_tab_nodot=false
118			if test -f y_tab.c \|\| test -f y_tab.h; then
119			y_tab_nodot=true
120			fi
121
122			# The parser itself, the first file, is the destination of the .y.c
123			# rule in the Makefile.
124			parser=$1
125	michael	1720
126	michael	1504	# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
127			# instance, we rename #include "y.tab.h" into #include "parse.h"
128			# during the conversion from y.tab.c to parse.c.
129	michael	1720	sed_fix_filenames=
130
131			# Also rename header guards, as Bison 2.7 for instance uses its header
132			# guard in its implementation file.
133			sed_fix_header_guards=
134
135	michael	912	while test "$#" -ne 0; do
136			if test "$1" = "--"; then
137			shift
138			break
139			fi
140	michael	1504	from=$1
141			# Handle y_tab.c and y_tab.h output by DOS
142			if $y_tab_nodot; then
143			case $from in
144			"y.tab.c") from=y_tab.c;;
145			"y.tab.h") from=y_tab.h;;
146			esac
147			fi
148	michael	912	shift
149	michael	1504	to=$1
150			shift
151	michael	1720	sed_fix_filenames="${sed_fix_filenames}s\|"`quote_for_sed "$from"`"\|$to\|g;"
152			sed_fix_header_guards="${sed_fix_header_guards}s\|"`guard "$from"`"\|"`guard "$to"`"\|g;"
153	michael	912	done
154
155			# The program to run.
156			prog="$1"
157			shift
158			# Make any relative path in $prog absolute.
159			case "$prog" in
160			[\\/]* \| ?:[\\/]*) ;;
161			[\\/]) prog="`pwd`/$prog" ;;
162			esac
163
164			# FIXME: add hostname here for parallel makes that run commands on
165			# other machines. But that might take us over the 14-char limit.
166			dirname=ylwrap$$
167	michael	1257	do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
168			trap "ret=129; $do_exit" 1
169			trap "ret=130; $do_exit" 2
170			trap "ret=141; $do_exit" 13
171			trap "ret=143; $do_exit" 15
172	michael	912	mkdir $dirname \|\| exit 1
173
174			cd $dirname
175
176			case $# in
177	michael	945	0) "$prog" "$input" ;;
178			*) "$prog" "$@" "$input" ;;
179	michael	912	esac
180			ret=$?
181
182			if test $ret -eq 0; then
183	michael	1504	for from in *
184			do
185	michael	1720	to=`printf '%s\n' "$from" \| sed "$sed_fix_filenames"`
186	michael	912	if test -f "$from"; then
187			# If $2 is an absolute path name, then just use that,
188	michael	1375	# otherwise prepend '../'.
189	michael	1504	case $to in
190			[\\/]* \| ?:[\\/]*) target=$to;;
191			*) target="../$to";;
192	michael	912	esac
193
194	michael	1504	# Do not overwrite unchanged header files to avoid useless
195			# recompilations. Always update the parser itself: it is the
196			# destination of the .y.c rule in the Makefile. Divert the
197			# output of all other files to a temporary file so we can
198			# compare them to existing versions.
199			if test $from != $parser; then
200	michael	1257	realtarget="$target"
201	michael	1504	target=tmp-`printf '%s\n' "$target" \| sed 's\|.*[\\/]\|\|g'`
202	michael	912	fi
203
204	michael	1504	# Munge "#line" or "#" directives. Don't let the resulting
205			# debug information point at an absolute srcdir. Use the real
206			# output file name, not yy.lex.c for instance. Adjust the
207			# include guards too.
208	michael	1720	sed -e "/^#/!b" \
209			-e "s\|$input_rx\|$input_sub_rx\|" \
210			-e "$sed_fix_filenames" \
211			-e "$sed_fix_header_guards" \
212			"$from" >"$target" \|\| ret=$?
213	michael	912
214	michael	1504	# Check whether files must be updated.
215			if test "$from" != "$parser"; then
216	michael	1257	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
217	michael	1504	echo "$to is unchanged"
218	michael	1257	rm -f "$target"
219			else
220	michael	1504	echo "updating $to"
221	michael	912	mv -f "$target" "$realtarget"
222			fi
223			fi
224			else
225	michael	1504	# A missing file is only an error for the parser. This is a
226			# blatant hack to let us support using "yacc -d". If -d is not
227			# specified, don't fail when the header file is "missing".
228			if test "$from" = "$parser"; then
229	michael	912	ret=1
230			fi
231			fi
232			done
233			fi
234
235			# Remove the directory.
236			cd ..
237			rm -rf $dirname
238
239			exit $ret
240
241			# Local Variables:
242			# mode: shell-script
243			# sh-indentation: 2
244			# eval: (add-hook 'write-file-hooks 'time-stamp)
245			# time-stamp-start: "scriptversion="
246			# time-stamp-format: "%:y-%02m-%02d.%02H"
247	michael	945	# time-stamp-time-zone: "UTC"
248			# time-stamp-end: "; # UTC"
249	michael	912	# End: