diff options
Diffstat (limited to 'miranda-wine/src/modules/utils/utf.c')
| -rw-r--r-- | miranda-wine/src/modules/utils/utf.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/miranda-wine/src/modules/utils/utf.c b/miranda-wine/src/modules/utils/utf.c new file mode 100644 index 0000000..57f72c8 --- /dev/null +++ b/miranda-wine/src/modules/utils/utf.c @@ -0,0 +1,165 @@ +/*
+
+Miranda IM: the free IM client for Microsoft* Windows*
+
+Copyright 2000-2006 Miranda ICQ/IM project,
+all portions of this codebase are copyrighted to the people
+listed in contributors.txt.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include "commonheaders.h"
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// Utf8Decode - converts UTF8-encoded string to the UCS2/MBCS format
+
+void Utf8Decode( char* str, wchar_t** ucs2 )
+{
+ int len;
+ wchar_t* tempBuf;
+
+ if ( str == NULL )
+ return;
+
+ len = strlen( str );
+ if ( len < 2 ) {
+ if ( ucs2 != NULL ) {
+ *ucs2 = ( wchar_t* )mir_alloc(( len+1 )*sizeof( wchar_t ));
+ MultiByteToWideChar( CP_ACP, 0, str, len, *ucs2, len );
+ ( *ucs2 )[ len ] = 0;
+ }
+ return;
+ }
+
+ tempBuf = ( wchar_t* )alloca(( len+1 )*sizeof( wchar_t ));
+ {
+ wchar_t* d = tempBuf;
+ BYTE* s = ( BYTE* )str;
+
+ while( *s )
+ {
+ if (( *s & 0x80 ) == 0 ) {
+ *d++ = *s++;
+ continue;
+ }
+
+ if (( s[0] & 0xE0 ) == 0xE0 && ( s[1] & 0xC0 ) == 0x80 && ( s[2] & 0xC0 ) == 0x80 ) {
+ *d++ = (( WORD )( s[0] & 0x0F) << 12 ) + ( WORD )(( s[1] & 0x3F ) << 6 ) + ( WORD )( s[2] & 0x3F );
+ s += 3;
+ continue;
+ }
+
+ if (( s[0] & 0xE0 ) == 0xC0 && ( s[1] & 0xC0 ) == 0x80 ) {
+ *d++ = ( WORD )(( s[0] & 0x1F ) << 6 ) + ( WORD )( s[1] & 0x3F );
+ s += 2;
+ continue;
+ }
+
+ *d++ = *s++;
+ }
+
+ *d = 0;
+ }
+
+ if ( ucs2 != NULL ) {
+ int fullLen = ( len+1 )*sizeof( wchar_t );
+ *ucs2 = ( wchar_t* )mir_alloc( fullLen );
+ memcpy( *ucs2, tempBuf, fullLen );
+ }
+
+ WideCharToMultiByte( CP_ACP, 0, tempBuf, -1, str, len, NULL, NULL );
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// Utf8Encode - converts MBCS string to the UTF8-encoded format
+
+char* Utf8Encode( const char* src )
+{
+ int len;
+ char* result;
+ wchar_t* tempBuf;
+
+ if ( src == NULL )
+ return NULL;
+
+ len = strlen( src );
+ result = ( char* )mir_alloc( len*3 + 1 );
+ if ( result == NULL )
+ return NULL;
+
+ tempBuf = ( wchar_t* )alloca(( len+1 )*sizeof( wchar_t ));
+ MultiByteToWideChar( CP_ACP, 0, src, -1, tempBuf, len );
+ tempBuf[ len ] = 0;
+ {
+ wchar_t* s = tempBuf;
+ BYTE* d = ( BYTE* )result;
+
+ while( *s ) {
+ int U = *s++;
+
+ if ( U < 0x80 ) {
+ *d++ = ( BYTE )U;
+ }
+ else if ( U < 0x800 ) {
+ *d++ = 0xC0 + (( U >> 6 ) & 0x3F );
+ *d++ = 0x80 + ( U & 0x003F );
+ }
+ else {
+ *d++ = 0xE0 + ( U >> 12 );
+ *d++ = 0x80 + (( U >> 6 ) & 0x3F );
+ *d++ = 0x80 + ( U & 0x3F );
+ } }
+
+ *d = 0;
+ }
+
+ return result;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// Utf8Encode - converts UCS2 string to the UTF8-encoded format
+
+char* Utf8EncodeUcs2( const wchar_t* src )
+{
+ int len = wcslen( src );
+ char* result = ( char* )mir_alloc( len*3 + 1 );
+ if ( result == NULL )
+ return NULL;
+
+ { const wchar_t* s = src;
+ BYTE* d = ( BYTE* )result;
+
+ while( *s ) {
+ int U = *s++;
+
+ if ( U < 0x80 ) {
+ *d++ = ( BYTE )U;
+ }
+ else if ( U < 0x800 ) {
+ *d++ = 0xC0 + (( U >> 6 ) & 0x3F );
+ *d++ = 0x80 + ( U & 0x003F );
+ }
+ else {
+ *d++ = 0xE0 + ( U >> 12 );
+ *d++ = 0x80 + (( U >> 6 ) & 0x3F );
+ *d++ = 0x80 + ( U & 0x3F );
+ } }
+
+ *d = 0;
+ }
+
+ return result;
+}
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