regextxt.h - mozsearch

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// © 2016 and later: Unicode, Inc. and others.

// License & terms of use: http://www.unicode.org/copyright.html

/********************************************************************

 * 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