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-rwxr-xr-xSource/DirectFB/lib/direct/utf8.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/Source/DirectFB/lib/direct/utf8.h b/Source/DirectFB/lib/direct/utf8.h
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+++ b/Source/DirectFB/lib/direct/utf8.h
@@ -0,0 +1,80 @@
+/*
+ (c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
+ (c) Copyright 2000-2004 Convergence (integrated media) GmbH
+
+ All rights reserved.
+
+ Written by Denis Oliver Kropp <dok@directfb.org>,
+ Andreas Hundt <andi@fischlustig.de>,
+ Sven Neumann <neo@directfb.org>,
+ Ville Syrjälä <syrjala@sci.fi> and
+ Claudio Ciccani <klan@users.sf.net>.
+
+ UTF8 routines ported from glib-2.0 and optimized
+
+ This library 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 2 of the License, or (at your option) any later version.
+
+ This library 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 library; if not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+#ifndef __DIRECT__UTF8_H__
+#define __DIRECT__UTF8_H__
+
+#include <direct/types.h>
+
+
+#define DIRECT_UTF8_SKIP(c) (((u8)(c) < 0xc0) ? 1 : __direct_utf8_skip[(u8)(c)&0x3f])
+
+#define DIRECT_UTF8_GET_CHAR(p) (*(const u8*)(p) < 0xc0 ? \
+ *(const u8*)(p) : __direct_utf8_get_char((const u8*)(p)))
+
+
+/*
+ * Actually the last two fields used to be zero since they indicate an
+ * invalid UTF-8 string. Changed it to 1 to avoid endless looping on
+ * invalid input.
+ */
+static const char __direct_utf8_skip[64] = {
+ 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
+ 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,6,6,1,1
+};
+
+static __inline__ unichar __direct_utf8_get_char( const u8 *p )
+{
+ int len;
+ register unichar result = p[0];
+
+ if (result < 0xc0)
+ return result;
+
+ if (result > 0xfd)
+ return (unichar) -1;
+
+ len = __direct_utf8_skip[result & 0x3f];
+
+ result &= 0x7c >> len;
+
+ while (--len) {
+ int c = *(++p);
+
+ if ((c & 0xc0) != 0x80)
+ return (unichar) -1;
+
+ result = (result << 6) | (c & 0x3f);
+ }
+
+ return result;
+}
+
+#endif