branches/8.2.x/ylwrap

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

scriptversion=2018-03-07.03; # UTC

# Copyright (C) 1996-2018 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 <https://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 x"$1" = x"--"; 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

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 'before-save-hook 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:
Revision:	8746
Committed:	Thu Dec 27 19:54:45 2018 UTC (5 years, 3 months ago) by michael
File size:	6860 byte(s)
Log Message:	- Recreate autogenerated files
#	User	Rev	Content
1	michael	912	#! /bin/sh
2			# ylwrap - wrapper for lex/yacc invocations.
3
4	michael	8746	scriptversion=2018-03-07.03; # UTC
5	michael	912
6	michael	8746	# Copyright (C) 1996-2018 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	8746	# along with this program. If not, see <https://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	michael	2347	guard ()
44	michael	1504	{
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	michael	2347	input=$1
100	michael	912	shift
101	michael	1425	# We'll later need for a correct munging of "#line" directives.
102			input_sub_rx=`get_dirname "$input" \| quote_for_sed`
103	michael	2347	case $input in
104	michael	912	[\\/]* \| ?:[\\/]*)
105			# Absolute path; do nothing.
106			;;
107			*)
108			# Relative path. Make it absolute.
109	michael	2347	input=`pwd`/$input
110	michael	912	;;
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	2347	while test $# -ne 0; do
136			if test x"$1" = x"--"; then
137	michael	912	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	michael	2347	prog=$1
157	michael	912	shift
158			# Make any relative path in $prog absolute.
159	michael	2347	case $prog in
160	michael	912	[\\/]* \| ?:[\\/]*) ;;
161	michael	2347	[\\/]) prog=`pwd`/$prog ;;
162	michael	912	esac
163
164			dirname=ylwrap$$
165	michael	1257	do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
166			trap "ret=129; $do_exit" 1
167			trap "ret=130; $do_exit" 2
168			trap "ret=141; $do_exit" 13
169			trap "ret=143; $do_exit" 15
170	michael	912	mkdir $dirname \|\| exit 1
171
172			cd $dirname
173
174			case $# in
175	michael	945	0) "$prog" "$input" ;;
176			*) "$prog" "$@" "$input" ;;
177	michael	912	esac
178			ret=$?
179
180			if test $ret -eq 0; then
181	michael	1504	for from in *
182			do
183	michael	1720	to=`printf '%s\n' "$from" \| sed "$sed_fix_filenames"`
184	michael	912	if test -f "$from"; then
185			# If $2 is an absolute path name, then just use that,
186	michael	1375	# otherwise prepend '../'.
187	michael	1504	case $to in
188			[\\/]* \| ?:[\\/]*) target=$to;;
189	michael	2347	*) target=../$to;;
190	michael	912	esac
191
192	michael	1504	# Do not overwrite unchanged header files to avoid useless
193			# recompilations. Always update the parser itself: it is the
194			# destination of the .y.c rule in the Makefile. Divert the
195			# output of all other files to a temporary file so we can
196			# compare them to existing versions.
197			if test $from != $parser; then
198	michael	2347	realtarget=$target
199	michael	1504	target=tmp-`printf '%s\n' "$target" \| sed 's\|.*[\\/]\|\|g'`
200	michael	912	fi
201
202	michael	1504	# Munge "#line" or "#" directives. Don't let the resulting
203			# debug information point at an absolute srcdir. Use the real
204			# output file name, not yy.lex.c for instance. Adjust the
205			# include guards too.
206	michael	1720	sed -e "/^#/!b" \
207			-e "s\|$input_rx\|$input_sub_rx\|" \
208			-e "$sed_fix_filenames" \
209			-e "$sed_fix_header_guards" \
210			"$from" >"$target" \|\| ret=$?
211	michael	912
212	michael	1504	# Check whether files must be updated.
213			if test "$from" != "$parser"; then
214	michael	1257	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
215	michael	1504	echo "$to is unchanged"
216	michael	1257	rm -f "$target"
217			else
218	michael	1504	echo "updating $to"
219	michael	912	mv -f "$target" "$realtarget"
220			fi
221			fi
222			else
223	michael	1504	# A missing file is only an error for the parser. This is a
224			# blatant hack to let us support using "yacc -d". If -d is not
225			# specified, don't fail when the header file is "missing".
226			if test "$from" = "$parser"; then
227	michael	912	ret=1
228			fi
229			fi
230			done
231			fi
232
233			# Remove the directory.
234			cd ..
235			rm -rf $dirname
236
237			exit $ret
238
239			# Local Variables:
240			# mode: shell-script
241			# sh-indentation: 2
242	michael	8746	# eval: (add-hook 'before-save-hook 'time-stamp)
243	michael	912	# time-stamp-start: "scriptversion="
244			# time-stamp-format: "%:y-%02m-%02d.%02H"
245	michael	8316	# time-stamp-time-zone: "UTC0"
246	michael	945	# time-stamp-end: "; # UTC"
247	michael	912	# End: