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authorRoland McGrath <roland@gnu.org>1996-03-25 17:48:26 +0000
committerRoland McGrath <roland@gnu.org>1996-03-25 17:48:26 +0000
commit857fa1b81d522573da671e54e5d3149698e54a0d (patch)
tree2bdd9c03003f918733781576b9a8c220fa36dc10 /stdlib/rpmatch.c
parent25c931a18c141a40af5297416182d011c0325b9f (diff)
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Mon Mar 25 03:35:16 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* malloc/malloc.c (morecore): Don't attempt recursive realloc of info table when _heaplimit==0 during realloc growing large block. * MakeTAGS (extract): Remove /dev/null from xgettext command line. (text-srcs): New variable: extract only C sources from $(tags_sources). (po/$(domain).pot): Depend on that. If it's empty, cp /dev/null $@ instead of $(extract). * misc/Makefile (headers): Add iovec.h. * sysdeps/unix/sysv/linux/iovec.h: New file. * sysdeps/generic/iovec.h: New file. * misc/sys/uio.h (struct iovec): Type replaced with #include <iovec.h>. * configure.in (NO_UNDERSCORES check): Use AC_TRY_LINK instead of AC_TRY_COMPILE. * misc/sys/cdefs.h [__USE_BSD] (const, signed, volatile): Move these macros inside [! __STDC__]. * stdlib/rpmatch.c: New file. * stdlib/Makefile (routines): Add rpmatch. * stdlib/stdlib.h [__USE_SVID]: Declare rpmatch. * MakeTAGS (MSGJOIN): Variable removed. (po/SYS_libc.pot): Use $(XGETTEXT) instead of $(MSGJOIN). Wed Mar 20 20:08:46 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysdep.h: Don't define C_SYMBOL_NAME. * sysdeps/unix/sysv/linux/m68k/sysdep.h: Don't define NO_UNDERSCORES.
Diffstat (limited to 'stdlib/rpmatch.c')
-rw-r--r--stdlib/rpmatch.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/stdlib/rpmatch.c b/stdlib/rpmatch.c
new file mode 100644
index 0000000..0dcaa6d
--- /dev/null
+++ b/stdlib/rpmatch.c
@@ -0,0 +1,62 @@
+/* rpmatch - determine whether string value is affirmation or negative
+ response according to current locale's data
+Copyright (C) 1996 Free Software Foundation, Inc.
+
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <langinfo.h>
+#include <stdlib.h>
+#include <regex.h>
+
+
+int
+rpmatch (response)
+ const char *response;
+{
+ /* Match against one of the response patterns, compiling the pattern
+ first if necessary. */
+ inline int try (const int tag, const int match,
+ const char **lastp, regex_t *re)
+ {
+ const char *pattern = nl_langinfo (tag);
+ if (pattern != *lastp)
+ {
+ /* The pattern has changed. */
+ if (*lastp)
+ {
+ /* Free the old compiled pattern. */
+ regfree (re);
+ *lastp = NULL;
+ }
+ /* Compile the pattern and cache it for future runs. */
+ if (regcomp (re, pattern, REG_EXTENDED) != 0)
+ return -1;
+ *lastp = pattern;
+ }
+
+ /* Try the pattern. */
+ return regexec (re, response, 0, NULL, 0) == 0 ? match : !match;
+ }
+
+ /* We cache the response patterns and compiled regexps here. */
+ static const char *yesexpr, *noexpr;
+ static regex_t yesre, nore;
+
+ return (try (YESEXPR, 1, &yesexpr, &yesre) ?:
+ try (NOEXPR, 0, &noexpr, &nore));
+}