changeset 8031:ecc8ead0ad7f

Move to here from u32-mbtouc.c.
author Bruno Haible <bruno@clisp.org>
date Sun, 28 Jan 2007 02:29:32 +0000
parents 714ce6adb25b
children 465a74f78ab0
files lib/unistr/u32-mbtouc-unsafe.c
diffstat 1 files changed, 44 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
new file mode 100644
--- /dev/null
+++ b/lib/unistr/u32-mbtouc-unsafe.c
@@ -0,0 +1,44 @@
+/* Look at first character in UTF-32 string.
+   Copyright (C) 2002, 2006-2007 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2002.
+
+   This program 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, 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+   USA.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "unistr.h"
+
+#if !HAVE_INLINE
+
+int
+u32_mbtouc_unsafe (ucs4_t *puc, const uint32_t *s, size_t n)
+{
+  uint32_t c = *s;
+
+#if CONFIG_UNICODE_SAFETY
+  if (c < 0xd800 || (c >= 0xe000 && c < 0x110000))
+#endif
+    *puc = c;
+  else
+#if CONFIG_UNICODE_SAFETY
+    /* invalid multibyte character */
+    *puc = 0xfffd;
+#endif
+  return 1;
+}
+
+#endif