1 #ifndef __UTF8_H__
2 #define __UTF8_H__
3 
4 /* utf8.h -- convert characters to/from UTF-8
5 
6   (c) 1998-2006 (W3C) MIT, ERCIM, Keio University
7   See tidyp.h for the copyright notice.
8 
9 */
10 
11 #include "platform.h"
12 #include "buffio.h"
13 
14 /* UTF-8 encoding/decoding support
15 ** Does not convert character "codepoints", i.e. to/from 10646.
16 */
17 
18 int TY_(DecodeUTF8BytesToChar)( uint* c, uint firstByte, ctmbstr successorBytes,
19                                 TidyInputSource* inp, int* count );
20 
21 int TY_(EncodeCharToUTF8Bytes)( uint c, tmbstr encodebuf,
22                                 TidyOutputSink* outp, int* count );
23 
24 
25 uint  TY_(GetUTF8)( ctmbstr str, uint *ch );
26 tmbstr TY_(PutUTF8)( tmbstr buf, uint c );
27 
28 #define UNICODE_BOM_BE   0xFEFF   /* big-endian (default) UNICODE BOM */
29 #define UNICODE_BOM      UNICODE_BOM_BE
30 #define UNICODE_BOM_LE   0xFFFE   /* little-endian UNICODE BOM */
31 #define UNICODE_BOM_UTF8 0xEFBBBF /* UTF-8 UNICODE BOM */
32 
33 
34 Bool    TY_(IsValidUTF16FromUCS4)( tchar ucs4 );
35 Bool    TY_(IsHighSurrogate)( tchar ch );
36 Bool    TY_(IsLowSurrogate)( tchar ch );
37 
38 Bool    TY_(IsCombinedChar)( tchar ch );
39 Bool    TY_(IsValidCombinedChar)( tchar ch );
40 
41 tchar   TY_(CombineSurrogatePair)( tchar high, tchar low );
42 Bool    TY_(SplitSurrogatePair)( tchar utf16, tchar* high, tchar* low );
43 
44 
45 
46 #endif /* __UTF8_H__ */
47