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

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_shell.hxx"
  33 #include "internal/iso8601_converter.hxx"
  34 #include "internal/utilities.hxx"
  35
  36 #include <sstream>
  37 #include <iomanip>
  38
  39 //-----------------------------------
  40 /* Converts ISO 8601 conform date/time
  41    represenation to the representation
  42    conforming to the current locale
  43 */
  44 std::wstring iso8601_date_to_local_date(const std::wstring& isoDate )
  45 {
  46     const std::wstring CONST_SPACE(L" ");
  47     ::std::wstring ws8601DateTime(isoDate);
  48
  49     if ( ws8601DateTime.length() == 19 )
  50     {
  51         //fill in the SYSTEMTIME structure;
  52         std::string asDateTime = WStringToString( ws8601DateTime );
  53         SYSTEMTIME DateTime;
  54         DateTime.wYear         = ( unsigned short )strtol( asDateTime.substr( 0, 4 ).c_str(), NULL, 10 );
  55         DateTime.wMonth        = ( unsigned short )strtol( asDateTime.substr( 5, 2 ).c_str(), NULL, 10 );
  56         DateTime.wDayOfWeek    =  0;
  57         DateTime.wDay          = ( unsigned short )strtol( asDateTime.substr( 8, 2 ).c_str(), NULL, 10 );
  58         DateTime.wHour         = ( unsigned short )strtol( asDateTime.substr( 11,2 ).c_str(), NULL, 10 );
  59         DateTime.wMinute       = ( unsigned short )strtol( asDateTime.substr( 14,2 ).c_str(), NULL, 10 );
  60         DateTime.wSecond       = ( unsigned short )strtol( asDateTime.substr( 17,2 ).c_str(), NULL, 10 );
  61         DateTime.wMilliseconds =  0;
  62
  63         //get Date info from structure
  64         WCHAR DateBuffer[ MAX_PATH ];
  65         int DateSize = GetDateFormatW(
  66             LOCALE_SYSTEM_DEFAULT,
  67             0,
  68             &DateTime,
  69             NULL,
  70             DateBuffer,
  71             MAX_PATH );
  72
  73         if ( DateSize )
  74             ws8601DateTime.assign(DateBuffer);
  75         else
  76             ws8601DateTime = StringToWString( asDateTime );
  77
  78         //get Time info from structure
  79         WCHAR TimeBuffer[ MAX_PATH ];
  80
  81         int TimeSize =  GetTimeFormatW(
  82             LOCALE_SYSTEM_DEFAULT,
  83             0,
  84             &DateTime,
  85             NULL,
  86             TimeBuffer,
  87             MAX_PATH );
  88
  89         if ( TimeSize )
  90         {
  91             ws8601DateTime.append(L" ");
  92             ws8601DateTime.append(TimeBuffer);
  93         }
  94         else
  95             ws8601DateTime = StringToWString( asDateTime );
  96     }
  97
  98     return ws8601DateTime;
  99 }
 100
 101 //------------------------------------
 102 /* Converts ISO 8601 conform duration
 103    representation to the representation
 104    conforming to the current locale
 105
 106    Expect format PTnHnMnS according to
 107    ISO 8601 where n is abitrary number
 108    of digits
 109 */
 110
 111 std::wstring iso8601_duration_to_local_duration(const std::wstring& iso8601duration)
 112 {
 113     std::wstring days;
 114     std::wstring hours;
 115     std::wstring minutes;
 116     std::wstring seconds;
 117
 118     std::wstring::const_iterator iter     = iso8601duration.begin();
 119     std::wstring::const_iterator iter_end = iso8601duration.end();
 120
 121     std::wstring num;
 122
 123     for (/**/; iter != iter_end; ++iter)
 124     {
 125         if (isdigit(*iter))
 126         {
 127             num += *iter;
 128         }
 129         else
 130         {
 131             if (*iter == L'D' || *iter == L'd')
 132                 days = num;
 133             else if (*iter == L'H' || *iter == L'h')
 134                 hours = num;
 135             else if (*iter == L'M' || *iter == L'm')
 136                 minutes = num;
 137             else if (*iter == L'S' || *iter == L's')
 138                 seconds = num;
 139
 140             num.clear();
 141         }
 142     }
 143
 144     if (days.length() > 0)
 145     {
 146         int h = ((_wtoi(days.c_str()) * 24) + _wtoi(hours.c_str()));
 147         wchar_t buff[10];
 148         _itow(h, buff, 10);
 149         hours = buff;
 150     }
 151
 152 #if defined(_MSC_VER) && defined(_M_X64)
 153     std::wostringstream oss;
 154     oss << std::setw(2) << std::setfill(wchar_t('0')) << hours   << L":" <<
 155            std::setw(2) << std::setfill(wchar_t('0')) << minutes << L":" <<
 156            std::setw(2) << std::setfill(wchar_t('0')) << seconds;
 157     return oss.str();
 158 #elif defined( __MINGW32__ )
 159 #define ADD_AS_PREFILLED( st, out ) \
 160     if ( st.length() == 0 ) \
 161         out += L"00"; \
 162     else if ( st.length() == 1 ) \
 163         out += L"0"; \
 164     out += st;
 165
 166     std::wstring result;
 167     ADD_AS_PREFILLED( hours, result )
 168     result += L":";
 169     ADD_AS_PREFILLED( minutes, result )
 170     result += L":";
 171     ADD_AS_PREFILLED( seconds, result )
 172
 173     return result;
 174 #undef ADD_AS_PREFILLED
 175 #else
 176     std::wostringstream oss;
 177     oss << std::setw(2) << std::setfill('0') << hours   << L":" <<
 178            std::setw(2) << std::setfill('0') << minutes << L":" <<
 179            std::setw(2) << std::setfill('0') << seconds;
 180     return oss.str();
 181 #endif
 182 }
 183