From 7fe60435bce6595a9c58a9bfd8244d74b5320e96 Mon Sep 17 00:00:00 2001 From: Benjamin Franzke Date: Tue, 15 Jan 2013 08:46:13 +0100 Subject: Import DirectFB141_2k11R3_beta5 --- Source/DirectFB/lib/direct/utf8.h | 80 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100755 Source/DirectFB/lib/direct/utf8.h (limited to 'Source/DirectFB/lib/direct/utf8.h') diff --git a/Source/DirectFB/lib/direct/utf8.h b/Source/DirectFB/lib/direct/utf8.h new file mode 100755 index 0000000..a073c65 --- /dev/null +++ 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 , + Andreas Hundt , + Sven Neumann , + Ville Syrjälä and + Claudio Ciccani . + + 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 + + +#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 -- cgit