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authorLudovic Courtès <ludo@gnu.org>2012-02-03 10:51:46 +0100
committerLudovic Courtès <ludo@gnu.org>2012-02-03 10:51:46 +0100
commiteb4a14ed47a34e03566261b02c77bfcc02b20134 (patch)
tree23d7e5a0df3aa502b1b5802a0e6c75cfbef87519 /lib/wcrtomb.c
parent1ba05158ebe033d7d0bdfcfef686eae2c9ea0103 (diff)
downloadguile-eb4a14ed47a34e03566261b02c77bfcc02b20134.tar.gz
Use Gnulib's `regex' module.
This should help with regex portability, as reported in <http://bugs.gnu.org/10684> for Darwin 8.11. * m4/gnulib-cache.m4 (gl_MODULES): Add `regex'. * configure.ac: Remove header checks for regex.h, rxposix.h, and rx/rxposix.h. Remove check for the `regcomp' function. Remove definition of `HAVE_REGCOMP'. Define `ENABLE_REGEX'. * libguile/init.c: Check for `ENABLE_REGEX' instead of `HAVE_REGCOMP'. * libguile/regex-posix.c: Always include <regex.h>. Remove #ifdefs for rxposix.h and co.
Diffstat (limited to 'lib/wcrtomb.c')
-rw-r--r--lib/wcrtomb.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/lib/wcrtomb.c b/lib/wcrtomb.c
new file mode 100644
index 000000000..a4d6bcdbd
--- /dev/null
+++ b/lib/wcrtomb.c
@@ -0,0 +1,53 @@
+/* Convert wide character to multibyte character.
+ Copyright (C) 2008-2012 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 2008.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 3 of the License, 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+/* Specification. */
+#include <wchar.h>
+
+#include <errno.h>
+#include <stdlib.h>
+
+
+size_t
+wcrtomb (char *s, wchar_t wc, mbstate_t *ps)
+{
+ /* This implementation of wcrtomb on top of wctomb() supports only
+ stateless encodings. ps must be in the initial state. */
+ if (ps != NULL && !mbsinit (ps))
+ {
+ errno = EINVAL;
+ return (size_t)(-1);
+ }
+
+ if (s == NULL)
+ /* We know the NUL wide character corresponds to the NUL character. */
+ return 1;
+ else
+ {
+ int ret = wctomb (s, wc);
+
+ if (ret >= 0)
+ return ret;
+ else
+ {
+ errno = EILSEQ;
+ return (size_t)(-1);
+ }
+ }
+}