michael@0: /********************************************************************
michael@0:  * COPYRIGHT:
michael@0:  * Copyright (c) 2008-2010, International Business Machines Corporation and
michael@0:  * others. All Rights Reserved.
michael@0:  ********************************************************************/
michael@0: //
michael@0: //  file:  regextxt.h
michael@0: //
michael@0: //  This file contains utility code for supporting UText in the regular expression engine.
michael@0: //
michael@0: //  This class is internal to the regular expression implementation.
michael@0: //  For the public Regular Expression API, see the file "unicode/regex.h"
michael@0: //
michael@0: 
michael@0: #ifndef _REGEXTXT_H
michael@0: #define _REGEXTXT_H
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: #include "unicode/utext.h"
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: #define UTEXT_USES_U16(ut) (NULL==((ut)->pFuncs->mapNativeIndexToUTF16))
michael@0: 
michael@0: #if 0
michael@0: #define REGEX_DISABLE_CHUNK_MODE 1
michael@0: #endif
michael@0: 
michael@0: #ifdef REGEX_DISABLE_CHUNK_MODE
michael@0: #  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) (FALSE)
michael@0: #else
michael@0: #  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) ((0==((ut)->chunkNativeStart))&&((len)==((ut)->chunkNativeLimit))&&((len)==((ut)->nativeIndexingLimit)))
michael@0: #endif
michael@0: 
michael@0: struct URegexUTextUnescapeCharContext {
michael@0:     UText *text;
michael@0:     int32_t lastOffset;
michael@0: };
michael@0: #define U_REGEX_UTEXT_UNESCAPE_CONTEXT(text) { (text), -1 }
michael@0: 
michael@0: U_CFUNC UChar U_CALLCONV
michael@0: uregex_utext_unescape_charAt(int32_t offset, void * /* struct URegexUTextUnescapeCharContext* */ context);
michael@0: U_CFUNC UChar U_CALLCONV
michael@0: uregex_ucstr_unescape_charAt(int32_t offset, void * /* UChar* */ context);
michael@0: 
michael@0: U_NAMESPACE_END
michael@0: 
michael@0: #endif