chromium/third_party/blink/renderer/core/editing/iterators/text_searcher_icu.cc

/*
 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All
 * rights reserved.
 * Copyright (C) 2005 Alexey Proskuryakov.
 *
 * 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.
 */

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "third_party/blink/renderer/core/editing/iterators/text_searcher_icu.h"

#include <unicode/usearch.h>
#include "third_party/blink/renderer/platform/text/character.h"
#include "third_party/blink/renderer/platform/text/text_boundaries.h"
#include "third_party/blink/renderer/platform/text/text_break_iterator_internal_icu.h"
#include "third_party/blink/renderer/platform/text/unicode_utilities.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/text/character_names.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"

namespace blink {

namespace {

UStringSearch* CreateSearcher() { … }

class ICULockableSearcher { … };

}  // namespace

static bool IsWholeWordMatch(const UChar* text,
                             unsigned text_length,
                             MatchResultICU& result) { … }

// Grab the single global searcher.
// If we ever have a reason to do more than once search buffer at once, we'll
// have to move to multiple searchers.
TextSearcherICU::TextSearcherICU()
    : … { … }

TextSearcherICU::~TextSearcherICU() { … }

void TextSearcherICU::SetPattern(const StringView& pattern,
                                 FindOptions options) { … }

void TextSearcherICU::SetText(const UChar* text, wtf_size_t length) { … }

void TextSearcherICU::SetOffset(wtf_size_t offset) { … }

bool TextSearcherICU::NextMatchResult(MatchResultICU& result) { … }

bool TextSearcherICU::NextMatchResultInternal(MatchResultICU& result) { … }

bool TextSearcherICU::ShouldSkipCurrentMatch(MatchResultICU& result) const { … }

bool TextSearcherICU::IsCorrectKanaMatch(const UChar* text,
                                         MatchResultICU& result) const { … }

void TextSearcherICU::SetPattern(const UChar* pattern, wtf_size_t length) { … }

void TextSearcherICU::SetCaseSensitivity(bool case_sensitive) { … }

}  // namespace blink