1 files changed, 127 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/runtime/DateConversion.cpp b/Source/JavaScriptCore/runtime/DateConversion.cpp
new file mode 100644
index 000000000..0b57f012d
--- /dev/null
+++ b/Source/JavaScriptCore/runtime/DateConversion.cpp
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2012 Patrick Gansterer <paroga@paroga.com>
+ *
+ * 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 AND ITS 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 APPLE OR ITS 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.
+ */
+
+#include "config.h"
+#include "DateConversion.h"
+
+#include <wtf/Assertions.h>
+#include <wtf/DateMath.h>
+#include <wtf/text/StringBuilder.h>
+#include <wtf/text/WTFString.h>
+
+#if OS(WINDOWS)
+#include <windows.h>
+#endif
+
+using namespace WTF;
+
+namespace JSC {
+
+template<int width>
+static inline void appendNumber(StringBuilder& builder, int value)
+{
+    int fillingZerosCount = width;
+    if (value < 0) {
+        builder.append('-');
+        value = -value;
+        --fillingZerosCount;
+    }
+    String valueString = String::number(value);
+    fillingZerosCount -= valueString.length();
+    for (int i = 0; i < fillingZerosCount; ++i)
+        builder.append('0');
+    builder.append(valueString);
+}
+
+template<>
+void appendNumber<2>(StringBuilder& builder, int value)
+{
+    ASSERT(0 <= value && value <= 99);
+    builder.append(static_cast<char>('0' + value / 10));
+    builder.append(static_cast<char>('0' + value % 10));
+}
+
+String formatDateTime(const GregorianDateTime& t, DateTimeFormat format, bool asUTCVariant)
+{
+    bool appendDate = format & DateTimeFormatDate;
+    bool appendTime = format & DateTimeFormatTime;
+
+    StringBuilder builder;
+
+    if (appendDate) {
+        builder.append(weekdayName[(t.weekDay() + 6) % 7]);
+
+        if (asUTCVariant) {
+            builder.appendLiteral(", ");
+            appendNumber<2>(builder, t.monthDay());
+            builder.append(' ');
+            builder.append(monthName[t.month()]);
+        } else {
+            builder.append(' ');
+            builder.append(monthName[t.month()]);
+            builder.append(' ');
+            appendNumber<2>(builder, t.monthDay());
+        }
+        builder.append(' ');
+        appendNumber<4>(builder, t.year());
+    }
+
+    if (appendDate && appendTime)
+        builder.append(' ');
+
+    if (appendTime) {
+        appendNumber<2>(builder, t.hour());
+        builder.append(':');
+        appendNumber<2>(builder, t.minute());
+        builder.append(':');
+        appendNumber<2>(builder, t.second());
+        builder.appendLiteral(" GMT");
+
+        if (!asUTCVariant) {
+            int offset = abs(t.utcOffset()) / 60;
+            builder.append(t.utcOffset() < 0 ? '-' : '+');
+            appendNumber<2>(builder, offset / 60);
+            appendNumber<2>(builder, offset % 60);
+
+#if OS(WINDOWS)
+            TIME_ZONE_INFORMATION timeZoneInformation;
+            GetTimeZoneInformation(&timeZoneInformation);
+            const WCHAR* timeZoneName = t.isDST() ? timeZoneInformation.DaylightName : timeZoneInformation.StandardName;
+#else
+            struct tm gtm = t;
+            char timeZoneName[70];
+            strftime(timeZoneName, sizeof(timeZoneName), "%Z", &gtm);
+#endif
+            if (timeZoneName[0]) {
+                builder.appendLiteral(" (");
+                builder.append(timeZoneName);
+                builder.append(')');
+            }
+        }
+    }
+
+    return builder.toString().impl();
+}
+
+} // namespace JSC