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regextxt.h

/********************************************************************
 * COPYRIGHT:
 * Copyright (c) 2008-2010, International Business Machines Corporation and
 * others. All Rights Reserved.
 ********************************************************************/
//
//  file:  regextxt.h
//
//  This file contains utility code for supporting UText in the regular expression engine.
//
//  This class is internal to the regular expression implementation.
//  For the public Regular Expression API, see the file "unicode/regex.h"
//

#ifndef _REGEXTXT_H
#define _REGEXTXT_H

#include <unicode/utypes.h>
#include <unicode/utext.h>

U_NAMESPACE_BEGIN

#define UTEXT_USES_U16(ut) (NULL==((ut)->pFuncs->mapNativeIndexToUTF16))

#if 0
#define REGEX_DISABLE_CHUNK_MODE 1
#endif

#ifdef REGEX_DISABLE_CHUNK_MODE
#  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) (FALSE)
#else
#  define UTEXT_FULL_TEXT_IN_CHUNK(ut,len) ((0==((ut)->chunkNativeStart))&&((len)==((ut)->chunkNativeLimit))&&((len)==((ut)->nativeIndexingLimit)))
#endif

struct URegexUTextUnescapeCharContext {
    UText *text;
    int32_t lastOffset;
};
#define U_REGEX_UTEXT_UNESCAPE_CONTEXT(text) { (text), -1 }

U_CFUNC UChar U_CALLCONV
uregex_utext_unescape_charAt(int32_t offset, void * /* struct URegexUTextUnescapeCharContext* */ context);
U_CFUNC UChar U_CALLCONV
uregex_ucstr_unescape_charAt(int32_t offset, void * /* UChar* */ context);

U_NAMESPACE_END

#endif

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