[SHELL/EXPERIMENTS]

* Create a branch for some evul shell experiments.

svn path=/branches/shell-experiments/; revision=61927

lib/sdk/crt/string/_mbsnlen.c

@@ -0,0 +1,36 @@
+/*
+ * COPYRIGHT:         See COPYING in the top level directory
+ * PROJECT:           ReactOS CRT
+ * PURPOSE:           Implementation of _mbsnlen
+ * FILE:              lib/sdk/crt/string/_mbsnlen.c
+ * PROGRAMMER:        Timo Kreuzer
+ */
+
+#include <mbstring.h>
+
+_Check_return_
+_CRTIMP
+size_t
+__cdecl
+_mbsnlen(
+    _In_z_ const unsigned char *pmbstr,
+    _In_ size_t cjMaxLen)
+{
+    size_t cchCount = 0;
+    unsigned char jMbsByte;
+
+    /* Loop while we have bytes to process */
+    while (cjMaxLen-- > 0)
+    {
+        /* Get next mb byte */
+        jMbsByte = *pmbstr++;
+
+        /* If this is 0, we're done */
+        if (jMbsByte == 0) break;
+
+        /* Don't count lead bytes */
+        if (!_ismbblead(jMbsByte)) cchCount++;
+    }
+
+    return cchCount;
+}