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This CL generated by |sed -i '/sky\/engine\/config.h/d'| and a manual sweep to catch some oddballs. TBR=eseidel@chromium.org Review URL: https://codereview.chromium.org/1206763002.
130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
/*
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* Copyright (C) 2008 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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*
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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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* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY 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 OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/wtf/unicode/Collator.h"
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#include <stdlib.h>
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#include <string.h>
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#include <unicode/ucol.h>
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#include "sky/engine/wtf/Assertions.h"
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#include "sky/engine/wtf/StringExtras.h"
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#include "sky/engine/wtf/Threading.h"
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#include "sky/engine/wtf/ThreadingPrimitives.h"
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namespace WTF {
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static UCollator* cachedCollator;
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static Mutex& cachedCollatorMutex()
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{
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AtomicallyInitializedStatic(Mutex&, mutex = *new Mutex);
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return mutex;
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}
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Collator::Collator(const char* locale)
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: m_collator(0)
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, m_locale(locale ? strdup(locale) : 0)
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, m_lowerFirst(false)
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{
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}
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PassOwnPtr<Collator> Collator::userDefault()
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{
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return adoptPtr(new Collator(0));
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}
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Collator::~Collator()
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{
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releaseCollator();
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free(m_locale);
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}
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void Collator::setOrderLowerFirst(bool lowerFirst)
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{
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m_lowerFirst = lowerFirst;
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}
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Collator::Result Collator::collate(const UChar* lhs, size_t lhsLength, const UChar* rhs, size_t rhsLength) const
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{
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if (!m_collator)
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createCollator();
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return static_cast<Result>(ucol_strcoll(m_collator, lhs, lhsLength, rhs, rhsLength));
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}
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void Collator::createCollator() const
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{
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ASSERT(!m_collator);
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UErrorCode status = U_ZERO_ERROR;
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{
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Locker<Mutex> lock(cachedCollatorMutex());
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if (cachedCollator) {
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const char* cachedCollatorLocale = ucol_getLocaleByType(cachedCollator, ULOC_REQUESTED_LOCALE, &status);
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ASSERT(U_SUCCESS(status));
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ASSERT(cachedCollatorLocale);
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UColAttributeValue cachedCollatorLowerFirst = ucol_getAttribute(cachedCollator, UCOL_CASE_FIRST, &status);
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ASSERT(U_SUCCESS(status));
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// FIXME: default locale is never matched, because ucol_getLocaleByType returns the actual one used, not 0.
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if (m_locale && 0 == strcmp(cachedCollatorLocale, m_locale)
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&& ((UCOL_LOWER_FIRST == cachedCollatorLowerFirst && m_lowerFirst) || (UCOL_UPPER_FIRST == cachedCollatorLowerFirst && !m_lowerFirst))) {
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m_collator = cachedCollator;
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cachedCollator = 0;
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return;
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}
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}
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}
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m_collator = ucol_open(m_locale, &status);
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if (U_FAILURE(status)) {
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status = U_ZERO_ERROR;
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m_collator = ucol_open("", &status); // Fallback to Unicode Collation Algorithm.
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}
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ASSERT(U_SUCCESS(status));
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ucol_setAttribute(m_collator, UCOL_CASE_FIRST, m_lowerFirst ? UCOL_LOWER_FIRST : UCOL_UPPER_FIRST, &status);
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ASSERT(U_SUCCESS(status));
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ucol_setAttribute(m_collator, UCOL_NORMALIZATION_MODE, UCOL_ON, &status);
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ASSERT(U_SUCCESS(status));
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}
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void Collator::releaseCollator()
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{
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{
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Locker<Mutex> lock(cachedCollatorMutex());
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if (cachedCollator)
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ucol_close(cachedCollator);
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cachedCollator = m_collator;
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m_collator = 0;
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}
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}
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} // namespace WTF
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