This really needs to go in a branch. It needs heavy testing and can't coincide with the current shell32 due to PSDK interface changes

svn path=/branches/shell32_new-bringup/; revision=51893

lib/sdk/crt/mbstring/ismblead.c

@@ -0,0 +1,53 @@
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/sdk/crt/mbstring/ismblead.c
+ * PURPOSE:      Checks for a leading byte
+ * PROGRAMERS:
+ *              Copyright 1999 Ariadne, Taiji Yamada
+ *              Copyright 1999 Alexandre Julliard
+ *              Copyright 2000 Jon Griffths
+ *              Copyright 2008 Samuel Serapion adapted from PROJECT C Library
+ *
+ */
+
+#include <precomp.h>
+#include <mbctype.h>
+
+/*
+ * @implemented
+ */
+int _ismbblead(unsigned int c)
+{
+  return (_mbctype[(c&0xff) + 1] & _M1) != 0;
+}
+
+/*
+ * @implemented
+ */
+int _ismbslead( const unsigned char *start, const unsigned char *str)
+{
+  int lead = 0;
+
+  /* Lead bytes can also be trail bytes so we need to analyse the string
+   */
+  while (start <= str)
+  {
+    if (!*start)
+      return 0;
+    lead = !lead && _ismbblead(*start);
+    start++;
+  }
+
+  return lead ? -1 : 0;
+}
+
+/*
+ * @implemented
+ */
+unsigned char *__p__mbctype(void)
+{
+  return _mbctype;
+}
+
+