releases/8.2.0beta1/ylwrap

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

scriptversion=2012-07-14.08; # 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' "$from" \
    | sed \
        -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
        -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/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=$1
# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
# instance, we rename #include "y.tab.h" into #include "parse.h"
# during the conversion from y.tab.c to parse.c.
rename_sed=
while test "$#" -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=$1
  shift
  rename_sed="${rename_sed}s|"`quote_for_sed "$from"`"|$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 "$rename_sed"`
    if test -f "$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.
      FROM=`guard "$from"`
      TARGET=`guard "$to"`
      sed -e "/^#/!b" -e "s|$input_rx|$input_sub_rx|" -e "$rename_sed" \
          -e "s|$FROM|$TARGET|" "$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:	1592
Committed:	Sat Oct 27 21:02:32 2012 UTC (11 years, 5 months ago) by michael
Original Path:	*ircd-hybrid/trunk/ylwrap*
File size:	6546 byte(s)
Log Message:	- Second time's the charm? Moving svnroot/ircd-hybrid-8 to svnroot/ircd-hybrid/trunk
#	User	Rev	Content
1	michael	912	#! /bin/sh
2			# ylwrap - wrapper for lex/yacc invocations.
3
4	michael	1504	scriptversion=2012-07-14.08; # 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\|\([\\/]\)[^\\/]*$\|\1\|';;
36			# Otherwise, we want the empty string (not ".").
37			esac
38			}
39
40			# guard FILE
41			# ----------
42			# The CPP macro used to guard inclusion of FILE.
43			guard()
44			{
45			printf '%s\n' "$from" \
46			\| sed \
47			-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
48			-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'
49			}
50
51			# quote_for_sed [STRING]
52			# ----------------------
53			# Return STRING (or stdin) quoted to be used as a sed pattern.
54			quote_for_sed ()
55			{
56			case $# in
57			0) cat;;
58			1) printf '%s\n' "$1";;
59			esac \
60			\| sed -e 's\|[][\\.*]\|\\&\|g'
61			}
62
63	michael	912	case "$1" in
64			'')
65	michael	1375	echo "$0: No files given. Try '$0 --help' for more information." 1>&2
66	michael	912	exit 1
67			;;
68			--basedir)
69			basedir=$2
70			shift 2
71			;;
72			-h\|--h*)
73			cat <<\EOF
74			Usage: ylwrap [--help\|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
75
76			Wrapper for lex/yacc invocations, renaming files as desired.
77
78			INPUT is the input file
79			OUTPUT is one file PROG generates
80			DESIRED is the file we actually want instead of OUTPUT
81			PROGRAM is program to run
82			ARGS are passed to PROG
83
84			Any number of OUTPUT,DESIRED pairs may be used.
85
86			Report bugs to <bug-automake@gnu.org>.
87			EOF
88			exit $?
89			;;
90			-v\|--v*)
91			echo "ylwrap $scriptversion"
92			exit $?
93			;;
94			esac
95
96
97			# The input.
98			input="$1"
99			shift
100	michael	1425	# We'll later need for a correct munging of "#line" directives.
101			input_sub_rx=`get_dirname "$input" \| quote_for_sed`
102	michael	912	case "$input" in
103			[\\/]* \| ?:[\\/]*)
104			# Absolute path; do nothing.
105			;;
106			*)
107			# Relative path. Make it absolute.
108			input="`pwd`/$input"
109			;;
110			esac
111	michael	1504	input_rx=`get_dirname "$input" \| quote_for_sed`
112	michael	912
113	michael	1504	# Since DOS filename conventions don't allow two dots,
114			# the DOS version of Bison writes out y_tab.c instead of y.tab.c
115			# and y_tab.h instead of y.tab.h. Test to see if this is the case.
116			y_tab_nodot=false
117			if test -f y_tab.c \|\| test -f y_tab.h; then
118			y_tab_nodot=true
119			fi
120
121			# The parser itself, the first file, is the destination of the .y.c
122			# rule in the Makefile.
123			parser=$1
124			# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
125			# instance, we rename #include "y.tab.h" into #include "parse.h"
126			# during the conversion from y.tab.c to parse.c.
127			rename_sed=
128	michael	912	while test "$#" -ne 0; do
129			if test "$1" = "--"; then
130			shift
131			break
132			fi
133	michael	1504	from=$1
134			# Handle y_tab.c and y_tab.h output by DOS
135			if $y_tab_nodot; then
136			case $from in
137			"y.tab.c") from=y_tab.c;;
138			"y.tab.h") from=y_tab.h;;
139			esac
140			fi
141	michael	912	shift
142	michael	1504	to=$1
143			shift
144			rename_sed="${rename_sed}s\|"`quote_for_sed "$from"`"\|$to\|g;"
145	michael	912	done
146
147			# The program to run.
148			prog="$1"
149			shift
150			# Make any relative path in $prog absolute.
151			case "$prog" in
152			[\\/]* \| ?:[\\/]*) ;;
153			[\\/]) prog="`pwd`/$prog" ;;
154			esac
155
156			# FIXME: add hostname here for parallel makes that run commands on
157			# other machines. But that might take us over the 14-char limit.
158			dirname=ylwrap$$
159	michael	1257	do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
160			trap "ret=129; $do_exit" 1
161			trap "ret=130; $do_exit" 2
162			trap "ret=141; $do_exit" 13
163			trap "ret=143; $do_exit" 15
164	michael	912	mkdir $dirname \|\| exit 1
165
166			cd $dirname
167
168			case $# in
169	michael	945	0) "$prog" "$input" ;;
170			*) "$prog" "$@" "$input" ;;
171	michael	912	esac
172			ret=$?
173
174			if test $ret -eq 0; then
175	michael	1504	for from in *
176			do
177			to=`printf '%s\n' "$from" \| sed "$rename_sed"`
178	michael	912	if test -f "$from"; then
179			# If $2 is an absolute path name, then just use that,
180	michael	1375	# otherwise prepend '../'.
181	michael	1504	case $to in
182			[\\/]* \| ?:[\\/]*) target=$to;;
183			*) target="../$to";;
184	michael	912	esac
185
186	michael	1504	# Do not overwrite unchanged header files to avoid useless
187			# recompilations. Always update the parser itself: it is the
188			# destination of the .y.c rule in the Makefile. Divert the
189			# output of all other files to a temporary file so we can
190			# compare them to existing versions.
191			if test $from != $parser; then
192	michael	1257	realtarget="$target"
193	michael	1504	target=tmp-`printf '%s\n' "$target" \| sed 's\|.*[\\/]\|\|g'`
194	michael	912	fi
195
196	michael	1504	# Munge "#line" or "#" directives. Don't let the resulting
197			# debug information point at an absolute srcdir. Use the real
198			# output file name, not yy.lex.c for instance. Adjust the
199			# include guards too.
200			FROM=`guard "$from"`
201			TARGET=`guard "$to"`
202			sed -e "/^#/!b" -e "s\|$input_rx\|$input_sub_rx\|" -e "$rename_sed" \
203			-e "s\|$FROM\|$TARGET\|" "$from" >"$target" \|\| ret=$?
204	michael	912
205	michael	1504	# Check whether files must be updated.
206			if test "$from" != "$parser"; then
207	michael	1257	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
208	michael	1504	echo "$to is unchanged"
209	michael	1257	rm -f "$target"
210			else
211	michael	1504	echo "updating $to"
212	michael	912	mv -f "$target" "$realtarget"
213			fi
214			fi
215			else
216	michael	1504	# A missing file is only an error for the parser. This is a
217			# blatant hack to let us support using "yacc -d". If -d is not
218			# specified, don't fail when the header file is "missing".
219			if test "$from" = "$parser"; then
220	michael	912	ret=1
221			fi
222			fi
223			done
224			fi
225
226			# Remove the directory.
227			cd ..
228			rm -rf $dirname
229
230			exit $ret
231
232			# Local Variables:
233			# mode: shell-script
234			# sh-indentation: 2
235			# eval: (add-hook 'write-file-hooks 'time-stamp)
236			# time-stamp-start: "scriptversion="
237			# time-stamp-format: "%:y-%02m-%02d.%02H"
238	michael	945	# time-stamp-time-zone: "UTC"
239			# time-stamp-end: "; # UTC"
240	michael	912	# End: