1 /*

     2  * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)

     3  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.

     4  * Copyright (C) 2009 Google Inc. All rights reserved.

     5  *

     6  * The Original Code is Mozilla Communicator client code, released

     7  * March 31, 1998.

     8  *

     9  * The Initial Developer of the Original Code is

    10  * Netscape Communications Corporation.

    11  * Portions created by the Initial Developer are Copyright (C) 1998

    12  * the Initial Developer. All Rights Reserved.

    13  *

    14  * This library is free software; you can redistribute it and/or

    15  * modify it under the terms of the GNU Lesser General Public

    16  * License as published by the Free Software Foundation; either

    17  * version 2.1 of the License, or (at your option) any later version.

    18  *

    19  * This library is distributed in the hope that it will be useful,

    20  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    22  * Lesser General Public License for more details.

    23  *

    24  * You should have received a copy of the GNU Lesser General Public

    25  * License along with this library; if not, write to the Free Software

    26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

    27  *

    28  * Alternatively, the contents of this file may be used under the terms

    29  * of either the Mozilla Public License Version 1.1, found at

    30  * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public

    31  * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html

    32  * (the "GPL"), in which case the provisions of the MPL or the GPL are

    33  * applicable instead of those above.  If you wish to allow use of your

    34  * version of this file only under the terms of one of those two

    35  * licenses (the MPL or the GPL) and not to allow others to use your

    36  * version of this file under the LGPL, indicate your decision by

    37  * deletingthe provisions above and replace them with the notice and

    38  * other provisions required by the MPL or the GPL, as the case may be.

    39  * If you do not delete the provisions above, a recipient may use your

    40  * version of this file under any of the LGPL, the MPL or the GPL.

    41  */

    42 

    43 #include "config.h"

    44 #include "DateConversion.h"

    45 

    46 #include "CallFrame.h"

    47 #include "UString.h"

    48 #include <wtf/DateMath.h>

    49 #include <wtf/StringExtras.h>

    50 

    51 using namespace WTF;

    52 

    53 namespace JSC {

    54 

    55 double parseDate(ExecState* exec, const UString &date)

    56 {

    57     if (date == exec->globalData().cachedDateString)

    58         return exec->globalData().cachedDateStringValue;

    59     double value = parseDateFromNullTerminatedCharacters(exec, date.UTF8String().data());

    60     exec->globalData().cachedDateString = date;

    61     exec->globalData().cachedDateStringValue = value;

    62     return value;

    63 }

    64 

    65 void formatDate(const GregorianDateTime &t, DateConversionBuffer& buffer)

    66 {

    67     snprintf(buffer, DateConversionBufferSize, "%s %s %02d %04d",

    68         weekdayName[(t.weekDay + 6) % 7],

    69         monthName[t.month], t.monthDay, t.year + 1900);

    70 }

    71 

    72 void formatDateUTCVariant(const GregorianDateTime &t, DateConversionBuffer& buffer)

    73 {

    74     snprintf(buffer, DateConversionBufferSize, "%s, %02d %s %04d",

    75         weekdayName[(t.weekDay + 6) % 7],

    76         t.monthDay, monthName[t.month], t.year + 1900);

    77 }

    78 

    79 void formatTime(const GregorianDateTime &t, DateConversionBuffer& buffer)

    80 {

    81     int offset = abs(gmtoffset(t));

    82     char timeZoneName[70];

    83     struct tm gtm = t;

    84     strftime(timeZoneName, sizeof(timeZoneName), "%Z", &gtm);

    85 

    86     if (timeZoneName[0]) {

    87         snprintf(buffer, DateConversionBufferSize, "%02d:%02d:%02d GMT%c%02d%02d (%s)",

    88             t.hour, t.minute, t.second,

    89             gmtoffset(t) < 0 ? '-' : '+', offset / (60*60), (offset / 60) % 60, timeZoneName);

    90     } else {

    91         snprintf(buffer, DateConversionBufferSize, "%02d:%02d:%02d GMT%c%02d%02d",

    92             t.hour, t.minute, t.second,

    93             gmtoffset(t) < 0 ? '-' : '+', offset / (60*60), (offset / 60) % 60);

    94     }

    95 }

    96 

    97 void formatTimeUTC(const GregorianDateTime &t, DateConversionBuffer& buffer)

    98 {

    99     snprintf(buffer, DateConversionBufferSize, "%02d:%02d:%02d GMT", t.hour, t.minute, t.second);

   100 }

   101 

   102 } // namespace JSC