1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /********************************************************************
4  * COPYRIGHT:
5  * Copyright (c) 2008-2010, International Business Machines Corporation and
6  * others. All Rights Reserved.
7  ********************************************************************/
8 //
9 //  file:  regextxt.h
10 //
11 //  This file contains utility code for supporting UText in the regular expression engine.
12 //
13 //  This class is internal to the regular expression implementation.
14 //  For the public Regular Expression API, see the file "unicode/regex.h"
15 //
16 
17 #ifndef _REGEXTXT_H
18 #define _REGEXTXT_H
19 
20 #include "unicode/utypes.h"
21 #include "unicode/utext.h"
22 
23 U_NAMESPACE_BEGIN
24 
25 #define UTEXT_USES_U16(ut) (NULL==((ut)->pFuncs->mapNativeIndexToUTF16))
26 
27 #if 0
28 #define REGEX_DISABLE_CHUNK_MODE 1
29 #endif
30 
31 #ifdef REGEX_DISABLE_CHUNK_MODE
32 #  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) (false)
33 #else
34 #  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) ((0==((ut)->chunkNativeStart))&&((len)==((ut)->chunkNativeLimit))&&((len)==((ut)->nativeIndexingLimit)))
35 #endif
36 
37 struct URegexUTextUnescapeCharContext {
38     UText *text;
39     int32_t lastOffset;
40 };
41 #define U_REGEX_UTEXT_UNESCAPE_CONTEXT(text) { (text), -1 }
42 
43 U_CFUNC UChar U_CALLCONV
44 uregex_utext_unescape_charAt(int32_t offset, void * /* struct URegexUTextUnescapeCharContext* */ context);
45 U_CFUNC UChar U_CALLCONV
46 uregex_ucstr_unescape_charAt(int32_t offset, void * /* UChar* */ context);
47 
48 U_NAMESPACE_END
49 
50 #endif
51