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