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/*
* Copyright (C) 2011,2012 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
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* 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.
*/
#include "config.h"
#include "LocaleICU.h"
#include "LocalizedStrings.h"
#include <limits>
#include <unicode/udatpg.h>
#include <unicode/uloc.h>
#include <wtf/DateMath.h>
#include <wtf/text/StringBuilder.h>
namespace WebCore {
using namespace icu;
std::unique_ptr<Locale> Locale::create(const AtomString& locale)
{
return makeUnique<LocaleICU>(locale.string().utf8().data());
}
LocaleICU::LocaleICU(const char* locale)
: m_locale(locale)
{
}
LocaleICU::~LocaleICU()
{
#if !UCONFIG_NO_FORMATTING
unum_close(m_numberFormat);
#endif
#if ENABLE(DATE_AND_TIME_INPUT_TYPES)
udat_close(m_shortDateFormat);
udat_close(m_mediumTimeFormat);
udat_close(m_shortTimeFormat);
#endif
}
#if !UCONFIG_NO_FORMATTING
String LocaleICU::decimalSymbol(UNumberFormatSymbol symbol)
{
UErrorCode status = U_ZERO_ERROR;
int32_t bufferLength = unum_getSymbol(m_numberFormat, symbol, 0, 0, &status);
ASSERT(U_SUCCESS(status) || status == U_BUFFER_OVERFLOW_ERROR);
if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR)
return String();
Vector<UChar> buffer(bufferLength);
status = U_ZERO_ERROR;
unum_getSymbol(m_numberFormat, symbol, buffer.data(), bufferLength, &status);
if (U_FAILURE(status))
return String();
return String::adopt(WTFMove(buffer));
}
String LocaleICU::decimalTextAttribute(UNumberFormatTextAttribute tag)
{
UErrorCode status = U_ZERO_ERROR;
int32_t bufferLength = unum_getTextAttribute(m_numberFormat, tag, 0, 0, &status);
ASSERT(U_SUCCESS(status) || status == U_BUFFER_OVERFLOW_ERROR);
if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR)
return String();
Vector<UChar> buffer(bufferLength);
status = U_ZERO_ERROR;
unum_getTextAttribute(m_numberFormat, tag, buffer.data(), bufferLength, &status);
ASSERT(U_SUCCESS(status));
if (U_FAILURE(status))
return String();
return String::adopt(WTFMove(buffer));
}
#endif
void LocaleICU::initializeLocaleData()
{
#if !UCONFIG_NO_FORMATTING
if (m_didCreateDecimalFormat)
return;
m_didCreateDecimalFormat = true;
UErrorCode status = U_ZERO_ERROR;
m_numberFormat = unum_open(UNUM_DECIMAL, 0, 0, m_locale.data(), 0, &status);
if (!U_SUCCESS(status))
return;
Vector<String, DecimalSymbolsSize> symbols;
symbols.append(decimalSymbol(UNUM_ZERO_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_ONE_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_TWO_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_THREE_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_FOUR_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_FIVE_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_SIX_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_SEVEN_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_EIGHT_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_NINE_DIGIT_SYMBOL));
symbols.append(decimalSymbol(UNUM_DECIMAL_SEPARATOR_SYMBOL));
symbols.append(decimalSymbol(UNUM_GROUPING_SEPARATOR_SYMBOL));
ASSERT(symbols.size() == DecimalSymbolsSize);
setLocaleData(symbols, decimalTextAttribute(UNUM_POSITIVE_PREFIX), decimalTextAttribute(UNUM_POSITIVE_SUFFIX), decimalTextAttribute(UNUM_NEGATIVE_PREFIX), decimalTextAttribute(UNUM_NEGATIVE_SUFFIX));
#endif
}
#if ENABLE(DATE_AND_TIME_INPUT_TYPES)
bool LocaleICU::initializeShortDateFormat()
{
if (m_didCreateShortDateFormat)
return m_shortDateFormat;
m_shortDateFormat = openDateFormat(UDAT_NONE, UDAT_SHORT);
m_didCreateShortDateFormat = true;
return m_shortDateFormat;
}
UDateFormat* LocaleICU::openDateFormat(UDateFormatStyle timeStyle, UDateFormatStyle dateStyle) const
{
const UChar gmtTimezone[3] = {'G', 'M', 'T'};
UErrorCode status = U_ZERO_ERROR;
return udat_open(timeStyle, dateStyle, m_locale.data(), gmtTimezone, WTF_ARRAY_LENGTH(gmtTimezone), 0, -1, &status);
}
static String getDateFormatPattern(const UDateFormat* dateFormat)
{
if (!dateFormat)
return emptyString();
UErrorCode status = U_ZERO_ERROR;
int32_t length = udat_toPattern(dateFormat, TRUE, 0, 0, &status);
if (status != U_BUFFER_OVERFLOW_ERROR || !length)
return emptyString();
Vector<UChar> buffer(length);
status = U_ZERO_ERROR;
udat_toPattern(dateFormat, TRUE, buffer.data(), length, &status);
if (U_FAILURE(status))
return emptyString();
return String::adopt(WTFMove(buffer));
}
std::unique_ptr<Vector<String>> LocaleICU::createLabelVector(const UDateFormat* dateFormat, UDateFormatSymbolType type, int32_t startIndex, int32_t size)
{
if (!dateFormat)
return makeUnique<Vector<String>>();
if (udat_countSymbols(dateFormat, type) != startIndex + size)
return makeUnique<Vector<String>>();
auto labels = makeUnique<Vector<String>>();
labels->reserveCapacity(size);
for (int32_t i = 0; i < size; ++i) {
UErrorCode status = U_ZERO_ERROR;
int32_t length = udat_getSymbols(dateFormat, type, startIndex + i, 0, 0, &status);
if (status != U_BUFFER_OVERFLOW_ERROR)
return makeUnique<Vector<String>>();
Vector<UChar> buffer(length);
status = U_ZERO_ERROR;
udat_getSymbols(dateFormat, type, startIndex + i, buffer.data(), length, &status);
if (U_FAILURE(status))
return makeUnique<Vector<String>>();
labels->append(String::adopt(WTFMove(buffer)));
}
return WTFMove(labels);
}
static std::unique_ptr<Vector<String>> createFallbackMonthLabels()
{
auto labels = makeUnique<Vector<String>>();
labels->reserveCapacity(WTF_ARRAY_LENGTH(WTF::monthFullName));
for (unsigned i = 0; i < WTF_ARRAY_LENGTH(WTF::monthFullName); ++i)
labels->append(WTF::monthFullName[i]);
return WTFMove(labels);
}
const Vector<String>& LocaleICU::monthLabels()
{
if (m_monthLabels)
return *m_monthLabels;
if (initializeShortDateFormat()) {
m_monthLabels = createLabelVector(m_shortDateFormat, UDAT_MONTHS, UCAL_JANUARY, 12);
if (m_monthLabels)
return *m_monthLabels;
}
m_monthLabels = createFallbackMonthLabels();
return *m_monthLabels;
}
static std::unique_ptr<Vector<String>> createFallbackAMPMLabels()
{
auto labels = makeUnique<Vector<String>>();
labels->reserveCapacity(2);
labels->append("AM");
labels->append("PM");
return WTFMove(labels);
}
void LocaleICU::initializeDateTimeFormat()
{
if (m_didCreateTimeFormat)
return;
// We assume ICU medium time pattern and short time pattern are compatible
// with LDML, because ICU specific pattern character "V" doesn't appear
// in both medium and short time pattern.
m_mediumTimeFormat = openDateFormat(UDAT_MEDIUM, UDAT_NONE);
m_timeFormatWithSeconds = getDateFormatPattern(m_mediumTimeFormat);
m_shortTimeFormat = openDateFormat(UDAT_SHORT, UDAT_NONE);
m_timeFormatWithoutSeconds = getDateFormatPattern(m_shortTimeFormat);
UDateFormat* dateTimeFormatWithSeconds = openDateFormat(UDAT_MEDIUM, UDAT_SHORT);
m_dateTimeFormatWithSeconds = getDateFormatPattern(dateTimeFormatWithSeconds);
udat_close(dateTimeFormatWithSeconds);
UDateFormat* dateTimeFormatWithoutSeconds = openDateFormat(UDAT_SHORT, UDAT_SHORT);
m_dateTimeFormatWithoutSeconds = getDateFormatPattern(dateTimeFormatWithoutSeconds);
udat_close(dateTimeFormatWithoutSeconds);
auto timeAMPMLabels = createLabelVector(m_mediumTimeFormat, UDAT_AM_PMS, UCAL_AM, 2);
if (!timeAMPMLabels)
timeAMPMLabels = createFallbackAMPMLabels();
m_timeAMPMLabels = *timeAMPMLabels;
m_didCreateTimeFormat = true;
}
String LocaleICU::dateFormat()
{
if (!m_dateFormat.isNull())
return m_dateFormat;
if (!initializeShortDateFormat())
return "yyyy-MM-dd"_s;
m_dateFormat = getDateFormatPattern(m_shortDateFormat);
return m_dateFormat;
}
static String getFormatForSkeleton(const char* locale, const UChar* skeleton, int32_t skeletonLength)
{
String format = "yyyy-MM"_s;
UErrorCode status = U_ZERO_ERROR;
UDateTimePatternGenerator* patternGenerator = udatpg_open(locale, &status);
if (!patternGenerator)
return format;
status = U_ZERO_ERROR;
int32_t length = udatpg_getBestPattern(patternGenerator, skeleton, skeletonLength, 0, 0, &status);
if (status == U_BUFFER_OVERFLOW_ERROR && length) {
Vector<UChar> buffer(length);
status = U_ZERO_ERROR;
udatpg_getBestPattern(patternGenerator, skeleton, skeletonLength, buffer.data(), length, &status);
if (U_SUCCESS(status))
format = String::adopt(WTFMove(buffer));
}
udatpg_close(patternGenerator);
return format;
}
String LocaleICU::monthFormat()
{
if (!m_monthFormat.isNull())
return m_monthFormat;
// Gets a format for "MMMM" because Windows API always provides formats for
// "MMMM" in some locales.
const UChar skeleton[] = { 'y', 'y', 'y', 'y', 'M', 'M', 'M', 'M' };
m_monthFormat = getFormatForSkeleton(m_locale.data(), skeleton, WTF_ARRAY_LENGTH(skeleton));
return m_monthFormat;
}
String LocaleICU::shortMonthFormat()
{
if (!m_shortMonthFormat.isNull())
return m_shortMonthFormat;
const UChar skeleton[] = { 'y', 'y', 'y', 'y', 'M', 'M', 'M' };
m_shortMonthFormat = getFormatForSkeleton(m_locale.data(), skeleton, WTF_ARRAY_LENGTH(skeleton));
return m_shortMonthFormat;
}
String LocaleICU::timeFormat()
{
initializeDateTimeFormat();
return m_timeFormatWithSeconds;
}
String LocaleICU::shortTimeFormat()
{
initializeDateTimeFormat();
return m_timeFormatWithoutSeconds;
}
String LocaleICU::dateTimeFormatWithSeconds()
{
initializeDateTimeFormat();
return m_dateTimeFormatWithSeconds;
}
String LocaleICU::dateTimeFormatWithoutSeconds()
{
initializeDateTimeFormat();
return m_dateTimeFormatWithoutSeconds;
}
const Vector<String>& LocaleICU::shortMonthLabels()
{
if (!m_shortMonthLabels.isEmpty())
return m_shortMonthLabels;
if (initializeShortDateFormat()) {
if (auto labels = createLabelVector(m_shortDateFormat, UDAT_SHORT_MONTHS, UCAL_JANUARY, 12)) {
m_shortMonthLabels = *labels;
return m_shortMonthLabels;
}
}
m_shortMonthLabels.reserveCapacity(WTF_ARRAY_LENGTH(WTF::monthName));
for (unsigned i = 0; i < WTF_ARRAY_LENGTH(WTF::monthName); ++i)
m_shortMonthLabels.append(WTF::monthName[i]);
return m_shortMonthLabels;
}
const Vector<String>& LocaleICU::standAloneMonthLabels()
{
if (!m_standAloneMonthLabels.isEmpty())
return m_standAloneMonthLabels;
if (initializeShortDateFormat()) {
if (auto labels = createLabelVector(m_shortDateFormat, UDAT_STANDALONE_MONTHS, UCAL_JANUARY, 12)) {
m_standAloneMonthLabels = *labels;
return m_standAloneMonthLabels;
}
}
m_standAloneMonthLabels = monthLabels();
return m_standAloneMonthLabels;
}
const Vector<String>& LocaleICU::shortStandAloneMonthLabels()
{
if (!m_shortStandAloneMonthLabels.isEmpty())
return m_shortStandAloneMonthLabels;
if (initializeShortDateFormat()) {
if (auto labels = createLabelVector(m_shortDateFormat, UDAT_STANDALONE_SHORT_MONTHS, UCAL_JANUARY, 12)) {
m_shortStandAloneMonthLabels = *labels;
return m_shortStandAloneMonthLabels;
}
}
m_shortStandAloneMonthLabels = shortMonthLabels();
return m_shortStandAloneMonthLabels;
}
const Vector<String>& LocaleICU::timeAMPMLabels()
{
initializeDateTimeFormat();
return m_timeAMPMLabels;
}
#endif
} // namespace WebCore