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Comparing:
ircd-hybrid-8/ylwrap (file contents), Revision 1375 by michael, Fri Apr 27 08:01:46 2012 UTC vs.
ircd-hybrid/trunk/ylwrap (file contents), Revision 1730 by michael, Sun Jan 6 11:27:11 2013 UTC

#	Line 1 | Line 1
1		#! /bin/sh
2		# ylwrap - wrapper for lex/yacc invocations.
3
4	<	scriptversion=2011-08-25.18; # UTC
4	>	scriptversion=2012-12-21.17; # UTC
5
6	<	# Copyright (C) 1996-2012 Free Software Foundation, Inc.
6	>	# Copyright (C) 1996-2013 Free Software Foundation, Inc.
7		#
8		# Written by Tom Tromey <tromey@cygnus.com>.
9		#
#	Line 29 | Line 29 | scriptversion=2011-08-25.18; # UTC
29		# bugs to <bug-automake@gnu.org> or send patches to
30		# <automake-patches@gnu.org>.
31
32	+	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' "$1"                                                    \
46	+	| sed                                                               \
47	+	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'   \
48	+	-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'                        \
49	+	-e 's/__*/_/g'
50	+	}
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		case "$1" in
65		'')
66		echo "$0: No files given.  Try '$0 --help' for more information." 1>&2
#	Line 66 | Line 98 | esac
98		# The input.
99		input="$1"
100		shift
101	+	# We'll later need for a correct munging of "#line" directives.
102	+	input_sub_rx=`get_dirname "$input" | quote_for_sed`
103		case "$input" in
104		[\\/]* | ?:[\\/]*)
105		# Absolute path; do nothing.
#	Line 75 | Line 109 | case "$input" in
109		input="`pwd`/$input"
110		;;
111		esac
112	+	input_rx=`get_dirname "$input" | quote_for_sed`
113	+
114	+	# 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=$1
125	+
126	+	# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
127	+	# instance, we rename #include "y.tab.h" into #include "parse.h"
128	+	# during the conversion from y.tab.c to parse.c.
129	+	sed_fix_filenames=
130	+
131	+	# Also rename header guards, as Bison 2.7 for instance uses its header
132	+	# guard in its implementation file.
133	+	sed_fix_header_guards=
134
79	–	pairlist=
135		while test "$#" -ne 0; do
136		if test "$1" = "--"; then
137		shift
138		break
139		fi
140	<	pairlist="$pairlist $1"
140	>	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	>	shift
149	>	to=$1
150		shift
151	+	sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;"
152	+	sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;"
153		done
154
155		# The program to run.
#	Line 114 | Line 180 | esac
180		ret=$?
181
182		if test $ret -eq 0; then
183	<	set X $pairlist
184	<	shift
185	<	first=yes
120	<	# Since DOS filename conventions don't allow two dots,
121	<	# the DOS version of Bison writes out y_tab.c instead of y.tab.c
122	<	# and y_tab.h instead of y.tab.h. Test to see if this is the case.
123	<	y_tab_nodot="no"
124	<	if test -f y_tab.c || test -f y_tab.h; then
125	<	y_tab_nodot="yes"
126	<	fi
127	<
128	<	# The directory holding the input.
129	<	input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
130	<	# Quote $INPUT_DIR so we can use it in a regexp.
131	<	# FIXME: really we should care about more than '.' and '\'.
132	<	input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
133	<
134	<	while test "$#" -ne 0; do
135	<	from="$1"
136	<	# Handle y_tab.c and y_tab.h output by DOS
137	<	if test $y_tab_nodot = "yes"; then
138	<	if test $from = "y.tab.c"; then
139	<	from="y_tab.c"
140	<	else
141	<	if test $from = "y.tab.h"; then
142	<	from="y_tab.h"
143	<	fi
144	<	fi
145	<	fi
183	>	for from in *
184	>	do
185	>	to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"`
186		if test -f "$from"; then
187		# If $2 is an absolute path name, then just use that,
188		# otherwise prepend '../'.
189	<	case "$2" in
190	<	[\\/]* | ?:[\\/]*) target="$2";;
191	<	*) target="../$2";;
189	>	case $to in
190	>	[\\/]* | ?:[\\/]*) target=$to;;
191	>	*) target="../$to";;
192		esac
193
194	<	# We do not want to overwrite a header file if it hasn't
195	<	# changed.  This avoid useless recompilations.  However the
196	<	# parser itself (the first file) should always be updated,
197	<	# because it is the destination of the .y.c rule in the
198	<	# Makefile.  Divert the output of all other files to a temporary
199	<	# file so we can compare them to existing versions.
160	<	if test $first = no; then
194	>	# 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 != $parser; then
200		realtarget="$target"
201	<	target="tmp-`echo $target | sed s/.*[\\/]//g`"
201	>	target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'`
202		fi
164	–	# Edit out '#line' or '#' directives.
165	–	#
166	–	# We don't want the resulting debug information to point at
167	–	# an absolute srcdir; it is better for it to just mention the
168	–	# .y file with no path.
169	–	#
170	–	# We want to use the real output file name, not yy.lex.c for
171	–	# instance.
172	–	#
173	–	# We want the include guards to be adjusted too.
174	–	FROM=`echo "$from" | sed \
175	–	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
176	–	-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
177	–	TARGET=`echo "$2" | sed \
178	–	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
179	–	-e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
203
204	<	sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
205	<	-e "s,$FROM,$TARGET," "$from" >"$target" || ret=$?
204	>	# 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	>	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
214	<	# Check whether header files must be updated.
215	<	if test $first = no; then
214	>	# Check whether files must be updated.
215	>	if test "$from" != "$parser"; then
216		if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
217	<	echo "$2" is unchanged
217	>	echo "$to is unchanged"
218		rm -f "$target"
219		else
220	<	echo updating "$2"
220	>	echo "updating $to"
221		mv -f "$target" "$realtarget"
222		fi
223		fi
224		else
225	<	# A missing file is only an error for the first file.  This
226	<	# is a blatant hack to let us support using "yacc -d".  If -d
227	<	# is not specified, we don't want an error when the header
228	<	# file is "missing".
199	<	if test $first = yes; then
225	>	# A missing file is only an error for the parser.  This is a
226	>	# blatant hack to let us support using "yacc -d".  If -d is not
227	>	# specified, don't fail when the header file is "missing".
228	>	if test "$from" = "$parser"; then
229		ret=1
230		fi
231		fi
203	–	shift
204	–	shift
205	–	first=no
232		done
207	–	else
208	–	ret=$?
233		fi
234
235		# Remove the directory.

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