shell/source/win32/shlxthandler/util/iso8601_converter.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <stdlib.h>
  23
  24 #include <iso8601_converter.hxx>
  25 #include <utilities.hxx>
  26
  27 #include <sstream>
  28 #include <iomanip>
  29
  30 #include <rtl/character.hxx>
  31
  32 /* Converts ISO 8601 compliant date/time
  33    representation to the representation
  34    conforming to the current locale
  35 */
  36 std::wstring iso8601_date_to_local_date(const std::wstring& isoDate )
  37 {
  38     ::std::wstring ws8601DateTime(isoDate);
  39
  40     // Get rid of the optional milliseconds part if it exists.
  41     // Function accepts date/time as a combined date/time string in extended ISO8601 format,
  42     // which is yyyy-mm-ddThh:mm:ss[.mmm]. Last part is the optional "fraction of second" part,
  43     // that's why we cut off at 19.
  44     if (ws8601DateTime.length() > 19)
  45     {
  46       ws8601DateTime.erase(19, ::std::basic_string<char>::npos);
  47     }
  48
  49     if ( ws8601DateTime.length() == 19 )
  50     {
  51         std::string asDateTime = WStringToString( ws8601DateTime );
  52         SYSTEMTIME DateTime;
  53         DateTime.wYear         = static_cast<unsigned short>(strtol( asDateTime.substr( 0, 4 ).c_str(), nullptr, 10 ));
  54         DateTime.wMonth        = static_cast<unsigned short>(strtol( asDateTime.substr( 5, 2 ).c_str(), nullptr, 10 ));
  55         DateTime.wDayOfWeek    =  0;
  56         DateTime.wDay          = static_cast<unsigned short>(strtol( asDateTime.substr( 8, 2 ).c_str(), nullptr, 10 ));
  57         DateTime.wHour         = static_cast<unsigned short>(strtol( asDateTime.substr( 11,2 ).c_str(), nullptr, 10 ));
  58         DateTime.wMinute       = static_cast<unsigned short>(strtol( asDateTime.substr( 14,2 ).c_str(), nullptr, 10 ));
  59         DateTime.wSecond       = static_cast<unsigned short>(strtol( asDateTime.substr( 17,2 ).c_str(), nullptr, 10 ));
  60         DateTime.wMilliseconds =  0;
  61
  62         //get Date info from structure
  63         WCHAR DateBuffer[ MAX_PATH ];
  64         int DateSize = GetDateFormatW(
  65             LOCALE_SYSTEM_DEFAULT,
  66             0,
  67             &DateTime,
  68             nullptr,
  69             DateBuffer,
  70             MAX_PATH );
  71
  72         if ( DateSize )
  73             ws8601DateTime.assign(DateBuffer);
  74         else
  75             ws8601DateTime = StringToWString( asDateTime );
  76
  77         //get Time info from structure
  78         WCHAR TimeBuffer[ MAX_PATH ];
  79
  80         int TimeSize =  GetTimeFormatW(
  81             LOCALE_SYSTEM_DEFAULT,
  82             0,
  83             &DateTime,
  84             nullptr,
  85             TimeBuffer,
  86             MAX_PATH );
  87
  88         if ( TimeSize )
  89         {
  90             ws8601DateTime.append(L" ");
  91             ws8601DateTime.append(TimeBuffer);
  92         }
  93         else
  94             ws8601DateTime = StringToWString( asDateTime );
  95     }
  96
  97     return ws8601DateTime;
  98 }
  99
 100
 101 /* Converts ISO 8601 conform duration
 102    representation to the representation
 103    conforming to the current locale
 104
 105    Expect format PTnHnMnS according to
 106    ISO 8601 where n is arbitrary number
 107    of digits
 108 */
 109
 110 std::wstring iso8601_duration_to_local_duration(const std::wstring& iso8601duration)
 111 {
 112     std::wstring days;
 113     std::wstring hours;
 114     std::wstring minutes;
 115     std::wstring seconds;
 116
 117     std::wstring num;
 118
 119     for (const auto& w_ch : iso8601duration)
 120     {
 121         if (rtl::isAsciiDigit(w_ch)) // wchar_t is unsigned under MSVC
 122         {
 123             num += w_ch;
 124         }
 125         else
 126         {
 127             if (w_ch == L'D' || w_ch == L'd')
 128                 days = num;
 129             else if (w_ch == L'H' || w_ch == L'h')
 130                 hours = num;
 131             else if (w_ch == L'M' || w_ch == L'm')
 132                 minutes = num;
 133             else if (w_ch == L'S' || w_ch == L's')
 134                 seconds = num;
 135
 136             num.clear();
 137         }
 138     }
 139
 140     if (days.length() > 0)
 141     {
 142         int h = (_wtoi(days.c_str()) * 24) + _wtoi(hours.c_str());
 143         wchar_t buff[10];
 144         _itow(h, buff, 10);
 145         hours = buff;
 146     }
 147
 148     std::wostringstream oss;
 149     oss << std::setw(2) << std::setfill(wchar_t('0')) << hours   << L":" <<
 150            std::setw(2) << std::setfill(wchar_t('0')) << minutes << L":" <<
 151            std::setw(2) << std::setfill(wchar_t('0')) << seconds;
 152     return oss.str();
 153 }
 154
 155 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */