X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Fstringcodec%2Fcodecutils.cpp;fp=source%2Fstringcodec%2Fcodecutils.cpp;h=6afbf95850356e61e3c4738e4029f3d1921f18f1;hp=0000000000000000000000000000000000000000;hb=b42ed73a1b241c0e93ee03c43c4584b41c549bac;hpb=5b1368cb791cab043f0435628cacbaff36e39b7b

diff --git a/source/stringcodec/codecutils.cpp b/source/stringcodec/codecutils.cpp
new file mode 100644
index 0000000..6afbf95
--- /dev/null
+++ b/source/stringcodec/codecutils.cpp
@@ -0,0 +1,27 @@
+/* $Id$
+
+This file is part of libmspstrings
+Copyright © 2006-2007 Mikko Rasa
+Distributed under the LGPL
+*/
+
+#include "codecutils.h"
+
+namespace Msp {
+namespace Codecs {
+
+int transform_mapping_or_direct(const int *mapping, unsigned map_size, int ch, bool reverse)
+{
+	for(unsigned i=0; i<map_size*2; i+=2)
+	{
+		if(mapping[i+reverse]==ch)
+			return mapping[i+1-reverse];
+		else if(mapping[i+1-reverse]==ch)
+			return -1;
+	}
+
+	return ch;
+}
+
+} // namespace Codecs
+} // namespace Msp