mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
/*
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* Copyright (C) 2012 Patrick Gansterer <paroga@paroga.com>
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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 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 "config.h"
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#include "DateConversion.h"
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#include <wtf/Assertions.h>
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#include <wtf/DateMath.h>
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#include <wtf/text/StringBuilder.h>
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#include <wtf/text/WTFString.h>
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#if OS(WINDOWS)
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#include <windows.h>
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#endif
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namespace JSC {
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template<int width>
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static inline void appendNumber(StringBuilder& builder, int value)
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{
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if (value < 0) {
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builder.append('-');
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value = -value;
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}
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String valueString = String::number(value);
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int fillingZerosCount = width - valueString.length();
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for (int i = 0; i < fillingZerosCount; ++i)
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builder.append('0');
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builder.append(valueString);
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}
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template<>
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void appendNumber<2>(StringBuilder& builder, int value)
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{
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ASSERT(0 <= value && value <= 99);
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builder.append(static_cast<char>('0' + value / 10));
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builder.append(static_cast<char>('0' + value % 10));
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}
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String formatDateTime(const GregorianDateTime& t, DateTimeFormat format, bool asUTCVariant)
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{
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bool appendDate = format & DateTimeFormatDate;
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bool appendTime = format & DateTimeFormatTime;
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StringBuilder builder;
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if (appendDate) {
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builder.append(WTF::weekdayName[(t.weekDay() + 6) % 7]);
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if (asUTCVariant) {
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builder.appendLiteral(", ");
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appendNumber<2>(builder, t.monthDay());
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builder.append(' ');
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builder.append(WTF::monthName[t.month()]);
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} else {
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builder.append(' ');
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builder.append(WTF::monthName[t.month()]);
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builder.append(' ');
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appendNumber<2>(builder, t.monthDay());
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}
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builder.append(' ');
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appendNumber<4>(builder, t.year());
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}
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if (appendDate && appendTime)
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builder.append(' ');
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if (appendTime) {
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appendNumber<2>(builder, t.hour());
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builder.append(':');
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appendNumber<2>(builder, t.minute());
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builder.append(':');
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appendNumber<2>(builder, t.second());
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builder.appendLiteral(" GMT");
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if (!asUTCVariant) {
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int offset = abs(t.utcOffsetInMinute());
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builder.append(t.utcOffsetInMinute() < 0 ? '-' : '+');
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appendNumber<2>(builder, offset / 60);
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appendNumber<2>(builder, offset % 60);
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#if OS(WINDOWS)
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TIME_ZONE_INFORMATION timeZoneInformation;
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GetTimeZoneInformation(&timeZoneInformation);
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const WCHAR* winTimeZoneName = t.isDST() ? timeZoneInformation.DaylightName : timeZoneInformation.StandardName;
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String timeZoneName(winTimeZoneName);
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#else
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struct tm gtm = t;
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char timeZoneName[70];
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strftime(timeZoneName, sizeof(timeZoneName), "%Z", >m);
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#endif
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if (timeZoneName[0]) {
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builder.appendLiteral(" (");
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builder.append(timeZoneName);
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builder.append(')');
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}
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}
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}
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return builder.toString().impl();
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}
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} // namespace JSC
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