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/*
* Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TextBoundaries_h
#define TextBoundaries_h
#include <wtf/unicode/Unicode.h>
namespace WebCore {
inline bool requiresContextForWordBoundary(UChar32 character)
{
// FIXME: This function won't be needed when https://bugs.webkit.org/show_bug.cgi?id=120656 is fixed.
// We can get rid of this constant if we require a newer version of the ICU headers.
const int WK_U_LB_CONDITIONAL_JAPANESE_STARTER = 37;
int lineBreak = u_getIntPropertyValue(character, UCHAR_LINE_BREAK);
return lineBreak == U_LB_COMPLEX_CONTEXT || lineBreak == WK_U_LB_CONDITIONAL_JAPANESE_STARTER || lineBreak == U_LB_IDEOGRAPHIC;
}
int endOfFirstWordBoundaryContext(const UChar* characters, int length);
int startOfLastWordBoundaryContext(const UChar* characters, int length);
void findWordBoundary(const UChar*, int len, int position, int* start, int* end);
void findEndWordBoundary(const UChar*, int len, int position, int* end);
int findNextWordFromIndex(const UChar*, int len, int position, bool forward);
}
#endif
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