Adding upstream version 9.4.upstream/9.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/mbslen.c b/lib/mbslen.c
new file mode 100644
index 0000000..18642f5
--- /dev/null
+++ b/lib/mbslen.c
@@ -0,0 +1,48 @@
+/* Counting the multibyte characters in a string.
+   Copyright (C) 2007-2023 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2007.
+
+   This file 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 file 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 <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <string.h>
+
+#include <stdlib.h>
+
+#include "mbuiterf.h"
+
+/* Return the number of multibyte characters in the character string STRING.  */
+size_t
+mbslen (const char *string)
+{
+  if (MB_CUR_MAX > 1)
+    {
+      size_t count = 0;
+
+      mbuif_state_t state;
+      const char *iter;
+      for (mbuif_init (state), iter = string; mbuif_avail (state, iter); )
+        {
+          mbchar_t cur = mbuif_next (state, iter);
+          count++;
+          iter += mb_len (cur);
+        }
+
+      return count;
+    }
+  else
+    return strlen (string);
+}