added lib/mb8.c

moo/lib/mb8.c

@@ -0,0 +1,41 @@
+/*
+ * $Id$
+ *
+    Copyright (c) 2014-2018 Chung, Hyung-Hwan. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "moo-prv.h"
+
+moo_oow_t moo_uc_to_mb8 (moo_uch_t wc, moo_bch_t* mb8, moo_oow_t size)
+{
+	if (size <= 0) return size + 1; /* buffer too small */
+	if (wc > MOO_TYPE_MAX(moo_uint8_t)) return 0; /* illegal character */
+	if (mb8) *(moo_uint8_t*)mb8 = wc;
+	return 1;
+}
+
+moo_oow_t moo_mb8_to_uc (const moo_bch_t* mb8, moo_oow_t size, moo_uch_t* wc)
+{
+	*wc = *(const moo_uint8_t*)mb8;
+	return 1;
+}