X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bb7afa499a53b8df92f1083b48702810669b61ea..e733c4ce1e24cf7e4b0b0d8362fc59aaa7a7641c:/src/common/datetime.cpp diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp index 43b767754e..669d0a3269 100644 --- a/src/common/datetime.cpp +++ b/src/common/datetime.cpp @@ -1,10 +1,10 @@ /////////////////////////////////////////////////////////////////////////////// // Name: src/common/datetime.cpp // Purpose: implementation of time/date related classes +// (for formatting&parsing see datetimefmt.cpp) // Author: Vadim Zeitlin // Modified by: // Created: 11.05.99 -// RCS-ID: $Id$ // Copyright: (c) 1999 Vadim Zeitlin // parts of code taken from sndcal library by Scott E. Lee: // @@ -62,7 +62,7 @@ #if !defined(wxUSE_DATETIME) || wxUSE_DATETIME #ifndef WX_PRECOMP - #ifdef __WXMSW__ + #ifdef __WINDOWS__ #include "wx/msw/wrapwin.h" #endif #include "wx/string.h" @@ -70,9 +70,11 @@ #include "wx/intl.h" #include "wx/stopwatch.h" // for wxGetLocalTimeMillis() #include "wx/module.h" + #include "wx/crt.h" #endif // WX_PRECOMP #include "wx/thread.h" +#include "wx/time.h" #include "wx/tokenzr.h" #include @@ -86,149 +88,25 @@ #include "wx/datetime.h" -const long wxDateTime::TIME_T_FACTOR = 1000l; +// ---------------------------------------------------------------------------- +// wxXTI +// ---------------------------------------------------------------------------- #if wxUSE_EXTENDED_RTTI template<> void wxStringReadValue(const wxString &s , wxDateTime &data ) { - data.ParseFormat(s,wxT("%Y-%m-%d %H:%M:%S")) ; + data.ParseFormat(s,"%Y-%m-%d %H:%M:%S", NULL); } template<> void wxStringWriteValue(wxString &s , const wxDateTime &data ) { - s = data.Format(wxT("%Y-%m-%d %H:%M:%S")) ; + s = data.Format("%Y-%m-%d %H:%M:%S"); } wxCUSTOM_TYPE_INFO(wxDateTime, wxToStringConverter , wxFromStringConverter) -#endif - -// -// ---------------------------------------------------------------------------- -// conditional compilation -// ---------------------------------------------------------------------------- - -#if defined(HAVE_STRPTIME) && defined(__GLIBC__) && \ - ((__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)) - // glibc 2.0.7 strptime() is broken - the following snippet causes it to - // crash (instead of just failing): - // - // strncpy(buf, "Tue Dec 21 20:25:40 1999", 128); - // strptime(buf, "%x", &tm); - // - // so don't use it - #undef HAVE_STRPTIME -#endif // broken strptime() - -#if defined(HAVE_STRPTIME) && defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS - // configure detects strptime as linkable because it's in the OS X - // System library but MSL headers don't declare it. - -// char *strptime(const char *, const char *, struct tm *); - // However, we DON'T want to just provide it here because we would - // crash and/or overwrite data when strptime from OS X tries - // to fill in MW's struct tm which is two fields shorter (no TZ stuff) - // So for now let's just say we don't have strptime - #undef HAVE_STRPTIME -#endif - -#if defined(__MWERKS__) && wxUSE_UNICODE - #include -#endif - -// define a special symbol for VC8 instead of writing tests for 1400 repeatedly -#ifdef __VISUALC__ - #if __VISUALC__ >= 1400 - #define __VISUALC8__ - #endif -#endif - -#if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM) - #if defined(__WXPALMOS__) - #define WX_GMTOFF_IN_TM - #elif defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__) - #define WX_TIMEZONE _timezone - #elif defined(__MWERKS__) - long wxmw_timezone = 28800; - #define WX_TIMEZONE wxmw_timezone - #elif defined(__DJGPP__) || defined(__WINE__) - #include - #include - static long wxGetTimeZone() - { - static long timezone = MAXLONG; // invalid timezone - if (timezone == MAXLONG) - { - struct timeb tb; - ftime(&tb); - timezone = tb.timezone; - } - return timezone; - } - #define WX_TIMEZONE wxGetTimeZone() - #elif defined(__DARWIN__) - #define WX_GMTOFF_IN_TM - #elif defined(__WXWINCE__) && defined(__VISUALC8__) - #define WX_TIMEZONE _timezone - #else // unknown platform - try timezone - #define WX_TIMEZONE timezone - #endif -#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM - -// everyone has strftime except Win CE unless VC8 is used -#if !defined(__WXWINCE__) || defined(__VISUALC8__) - #define HAVE_STRFTIME -#endif - -// NB: VC8 safe time functions could/should be used for wxMSW as well probably -#if defined(__WXWINCE__) && defined(__VISUALC8__) - -struct tm *wxLocaltime_r(const time_t *t, struct tm* tm) -{ - __time64_t t64 = *t; - return _localtime64_s(tm, &t64) == 0 ? tm : NULL; -} - -struct tm *wxGmtime_r(const time_t* t, struct tm* tm) -{ - __time64_t t64 = *t; - return _gmtime64_s(tm, &t64) == 0 ? tm : NULL; -} - -#else // !wxWinCE with VC8 - -#if (!defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)) && wxUSE_THREADS && !defined(__WINDOWS__) -static wxMutex timeLock; -#endif - -#ifndef HAVE_LOCALTIME_R -struct tm *wxLocaltime_r(const time_t* ticks, struct tm* temp) -{ -#if wxUSE_THREADS && !defined(__WINDOWS__) - // No need to waste time with a mutex on windows since it's using - // thread local storage for localtime anyway. - wxMutexLocker locker(timeLock); -#endif - memcpy(temp, localtime(ticks), sizeof(struct tm)); - return temp; -} -#endif // !HAVE_LOCALTIME_R - -#ifndef HAVE_GMTIME_R -struct tm *wxGmtime_r(const time_t* ticks, struct tm* temp) -{ -#if wxUSE_THREADS && !defined(__WINDOWS__) - // No need to waste time with a mutex on windows since it's - // using thread local storage for gmtime anyway. - wxMutexLocker locker(timeLock); -#endif - memcpy(temp, gmtime(ticks), sizeof(struct tm)); - return temp; -} -#endif // !HAVE_GMTIME_R - -#endif // wxWinCE with VC8/other platforms +#endif // wxUSE_EXTENDED_RTTI // ---------------------------------------------------------------------------- // macros @@ -275,8 +153,6 @@ static const int SEC_PER_MIN = 60; static const int MIN_PER_HOUR = 60; -static const int HOURS_PER_DAY = 24; - static const long SECONDS_PER_DAY = 86400l; static const int DAYS_PER_WEEK = 7; @@ -287,14 +163,15 @@ static const long MILLISECONDS_PER_DAY = 86400000l; // (i.e. JDN(Jan 1, 1970) = 2440587.5) static const long EPOCH_JDN = 2440587l; -// used only in asserts -#ifdef __WXDEBUG__ +// these values are only used in asserts so don't define them if asserts are +// disabled to avoid warnings about unused static variables +#if wxDEBUG_LEVEL // the date of JDN -0.5 (as we don't work with fractional parts, this is the // reference date for us) is Nov 24, 4714BC static const int JDN_0_YEAR = -4713; static const int JDN_0_MONTH = wxDateTime::Nov; static const int JDN_0_DAY = 24; -#endif // __WXDEBUG__ +#endif // wxDEBUG_LEVEL // the constants used for JDN calculations static const long JDN_OFFSET = 32046l; @@ -310,12 +187,14 @@ static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] = { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 } }; +const long wxDateTime::TIME_T_FACTOR = 1000l; + // ---------------------------------------------------------------------------- // global data // ---------------------------------------------------------------------------- -const wxChar * wxDefaultDateTimeFormat = wxT("%c"); -const wxChar * wxDefaultTimeSpanFormat = wxT("%H:%M:%S"); +const char wxDefaultDateTimeFormat[] = "%c"; +const char wxDefaultTimeSpanFormat[] = "%H:%M:%S"; // in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to // indicate an invalid wxDateTime object @@ -327,17 +206,19 @@ wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown; // private functions // ---------------------------------------------------------------------------- -// debugger helper: shows what the date really is -#ifdef __WXDEBUG__ -extern const wxChar *wxDumpDate(const wxDateTime* dt) +// debugger helper: this function can be called from a debugger to show what +// the date really is +extern const char *wxDumpDate(const wxDateTime* dt) { - static wxChar buf[128]; + static char buf[128]; - wxStrcpy(buf, dt->Format(_T("%Y-%m-%d (%a) %H:%M:%S"))); + wxString fmt(dt->Format("%Y-%m-%d (%a) %H:%M:%S")); + wxStrlcpy(buf, + (fmt + " (" + dt->GetValue().ToString() + " ticks)").ToAscii(), + WXSIZEOF(buf)); return buf; } -#endif // Debug // get the number of days in the given month of the given year static inline @@ -345,7 +226,7 @@ wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month) { // the number of days in month in Julian/Gregorian calendar: the first line // is for normal years, the second one is for the leap ones - static wxDateTime::wxDateTime_t daysInMonth[2][MONTHS_IN_YEAR] = + static const wxDateTime::wxDateTime_t daysInMonth[2][MONTHS_IN_YEAR] = { { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } @@ -354,38 +235,6 @@ wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month) return daysInMonth[wxDateTime::IsLeapYear(year)][month]; } -// returns the time zone in the C sense, i.e. the difference UTC - local -// (in seconds) -static int GetTimeZone() -{ - // set to true when the timezone is set - static bool s_timezoneSet = false; - static long gmtoffset = LONG_MAX; // invalid timezone - - // ensure that the timezone variable is set by calling wxLocaltime_r - if ( !s_timezoneSet ) - { - // just call wxLocaltime_r() instead of figuring out whether this - // system supports tzset(), _tzset() or something else - time_t t = 0; - struct tm tm; - - wxLocaltime_r(&t, &tm); - s_timezoneSet = true; - -#ifdef WX_GMTOFF_IN_TM - // note that GMT offset is the opposite of time zone and so to return - // consistent results in both WX_GMTOFF_IN_TM and !WX_GMTOFF_IN_TM - // cases we have to negate it - gmtoffset = -tm.tm_gmtoff; -#else // !WX_GMTOFF_IN_TM - gmtoffset = WX_TIMEZONE; -#endif // WX_GMTOFF_IN_TM/!WX_GMTOFF_IN_TM - } - - return (int)gmtoffset; -} - // return the integral part of the JDN for the midnight of the given date (to // get the real JDN you need to add 0.5, this is, in fact, JDN of the // noon of the previous day) @@ -400,7 +249,7 @@ static long GetTruncatedJDN(wxDateTime::wxDateTime_t day, (year > JDN_0_YEAR) || ((year == JDN_0_YEAR) && (mon > JDN_0_MONTH)) || ((year == JDN_0_YEAR) && (mon == JDN_0_MONTH) && (day >= JDN_0_DAY)), - _T("date out of range - can't convert to JDN") + wxT("date out of range - can't convert to JDN") ); // make the year positive to avoid problems with negative numbers division @@ -426,10 +275,11 @@ static long GetTruncatedJDN(wxDateTime::wxDateTime_t day, - JDN_OFFSET; } -#ifdef HAVE_STRFTIME +#ifdef wxHAS_STRFTIME // this function is a wrapper around strftime(3) adding error checking -static wxString CallStrftime(const wxChar *format, const tm* tm) +// NOTE: not static because used by datetimefmt.cpp +wxString CallStrftime(const wxString& format, const tm* tm) { wxChar buf[4096]; // Create temp wxString here to work around mingw/cygwin bug 1046059 @@ -438,50 +288,24 @@ static wxString CallStrftime(const wxChar *format, const tm* tm) if ( !wxStrftime(buf, WXSIZEOF(buf), format, tm) ) { - // buffer is too small? - wxFAIL_MSG(_T("strftime() failed")); + // There is one special case in which strftime() can return 0 without + // indicating an error: "%p" may give empty string depending on the + // locale, so check for it explicitly. Apparently it's really the only + // exception. + if ( format != wxS("%p") ) + { + // if the format is valid, buffer must be too small? + wxFAIL_MSG(wxT("strftime() failed")); + } + + buf[0] = '\0'; } s = buf; return s; } -#endif // HAVE_STRFTIME - -#ifdef HAVE_STRPTIME - -#if wxUSE_UNIX && !defined(HAVE_STRPTIME_DECL) - // configure detected that we had strptime() but not its declaration, - // provide it ourselves - extern "C" char *strptime(const char *, const char *, struct tm *); -#endif - -// Unicode-friendly strptime() wrapper -static const wxChar * -CallStrptime(const wxChar *input, const char *fmt, tm *tm) -{ - // the problem here is that strptime() returns pointer into the string we - // passed to it while we're really interested in the pointer into the - // original, Unicode, string so we try to transform the pointer back -#if wxUSE_UNICODE - wxCharBuffer inputMB(wxConvertWX2MB(input)); -#else // ASCII - const char * const inputMB = input; -#endif // Unicode/Ascii - - const char *result = strptime(inputMB, fmt, tm); - if ( !result ) - return NULL; - -#if wxUSE_UNICODE - // FIXME: this is wrong in presence of surrogates &c - return input + (result - inputMB.data()); -#else // ASCII - return result; -#endif // Unicode/Ascii -} - -#endif // HAVE_STRPTIME +#endif // wxHAS_STRFTIME // if year and/or month have invalid values, replace them with the current ones static void ReplaceDefaultYearMonthWithCurrent(int *year, @@ -506,8 +330,9 @@ static void ReplaceDefaultYearMonthWithCurrent(int *year, } } -// fll the struct tm with default values -static void InitTm(struct tm& tm) +// fill the struct tm with default values +// NOTE: not static because used by datetimefmt.cpp +void InitTm(struct tm& tm) { // struct tm may have etxra fields (undocumented and with unportable // names) which, nevertheless, must be set to 0 @@ -518,104 +343,6 @@ static void InitTm(struct tm& tm) tm.tm_isdst = -1; // auto determine } -// parsing helpers -// --------------- - -// return the month if the string is a month name or Inv_Month otherwise -static wxDateTime::Month GetMonthFromName(const wxString& name, int flags) -{ - wxDateTime::Month mon; - for ( mon = wxDateTime::Jan; mon < wxDateTime::Inv_Month; wxNextMonth(mon) ) - { - // case-insensitive comparison either one of or with both abbreviated - // and not versions - if ( flags & wxDateTime::Name_Full ) - { - if ( name.CmpNoCase(wxDateTime:: - GetMonthName(mon, wxDateTime::Name_Full)) == 0 ) - { - break; - } - } - - if ( flags & wxDateTime::Name_Abbr ) - { - if ( name.CmpNoCase(wxDateTime:: - GetMonthName(mon, wxDateTime::Name_Abbr)) == 0 ) - { - break; - } - } - } - - return mon; -} - -// return the weekday if the string is a weekday name or Inv_WeekDay otherwise -static wxDateTime::WeekDay GetWeekDayFromName(const wxString& name, int flags) -{ - wxDateTime::WeekDay wd; - for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) ) - { - // case-insensitive comparison either one of or with both abbreviated - // and not versions - if ( flags & wxDateTime::Name_Full ) - { - if ( name.CmpNoCase(wxDateTime:: - GetWeekDayName(wd, wxDateTime::Name_Full)) == 0 ) - { - break; - } - } - - if ( flags & wxDateTime::Name_Abbr ) - { - if ( name.CmpNoCase(wxDateTime:: - GetWeekDayName(wd, wxDateTime::Name_Abbr)) == 0 ) - { - break; - } - } - } - - return wd; -} - -/* static */ -struct tm *wxDateTime::GetTmNow(struct tm *tmstruct) -{ - time_t t = GetTimeNow(); - return wxLocaltime_r(&t, tmstruct); -} - -// scans all digits (but no more than len) and returns the resulting number -static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number) -{ - size_t n = 1; - wxString s; - while ( wxIsdigit(*p) ) - { - s += *p++; - - if ( len && ++n > len ) - break; - } - - return !s.empty() && s.ToULong(number); -} - -// scans all alphabetic characters and returns the resulting string -static wxString GetAlphaToken(const wxChar*& p) -{ - wxString s; - while ( wxIsalpha(*p) ) - { - s += *p++; - } - - return s; -} - // ============================================================================ // implementation of wxDateTime // ============================================================================ @@ -628,8 +355,12 @@ wxDateTime::Tm::Tm() { year = (wxDateTime_t)wxDateTime::Inv_Year; mon = wxDateTime::Inv_Month; - mday = 0; - hour = min = sec = msec = 0; + mday = + yday = 0; + hour = + min = + sec = + msec = 0; wday = wxDateTime::Inv_WeekDay; } @@ -649,9 +380,17 @@ wxDateTime::Tm::Tm(const struct tm& tm, const TimeZone& tz) bool wxDateTime::Tm::IsValid() const { + if ( mon == wxDateTime::Inv_Month ) + return false; + + // We need to check this here to avoid crashing in GetNumOfDaysInMonth() if + // somebody passed us "(wxDateTime::Month)1000". + wxCHECK_MSG( mon >= wxDateTime::Jan && mon < wxDateTime::Inv_Month, false, + wxS("Invalid month value") ); + // we allow for the leap seconds, although we don't use them (yet) return (year != wxDateTime::Inv_Year) && (mon != wxDateTime::Inv_Month) && - (mday <= GetNumOfDaysInMonth(year, mon)) && + (mday > 0 && mday <= GetNumOfDaysInMonth(year, mon)) && (hour < 24) && (min < 60) && (sec < 62) && (msec < 1000); } @@ -660,7 +399,7 @@ void wxDateTime::Tm::ComputeWeekDay() // compute the week day from day/month/year: we use the dumbest algorithm // possible: just compute our JDN and then use the (simple to derive) // formula: weekday = (JDN + 1.5) % 7 - wday = (wxDateTime::wxDateTime_t)((wxDateTime::WeekDay)(GetTruncatedJDN(mday, mon, year) + 2) % 7); + wday = (wxDateTime::wxDateTime_t)((GetTruncatedJDN(mday, mon, year) + 2) % 7); } void wxDateTime::Tm::AddMonths(int monDiff) @@ -682,7 +421,7 @@ void wxDateTime::Tm::AddMonths(int monDiff) mon = (wxDateTime::Month)(mon + monDiff); - wxASSERT_MSG( mon >= 0 && mon < MONTHS_IN_YEAR, _T("logic error") ); + wxASSERT_MSG( mon >= 0 && mon < MONTHS_IN_YEAR, wxT("logic error") ); // NB: we don't check here that the resulting date is valid, this function // is private and the caller must check it if needed @@ -707,7 +446,7 @@ void wxDateTime::Tm::AddDays(int dayDiff) } wxASSERT_MSG( mday > 0 && mday <= GetNumOfDaysInMonth(year, mon), - _T("logic error") ); + wxT("logic error") ); } // ---------------------------------------------------------------------------- @@ -721,7 +460,7 @@ wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz) case wxDateTime::Local: // get the offset from C RTL: it returns the difference GMT-local // while we want to have the offset _from_ GMT, hence the '-' - m_offset = -GetTimeZone(); + m_offset = -wxGetTimeZone(); break; case wxDateTime::GMT_12: @@ -762,7 +501,7 @@ wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz) break; default: - wxFAIL_MSG( _T("unknown time zone") ); + wxFAIL_MSG( wxT("unknown time zone") ); } } @@ -770,6 +509,13 @@ wxDateTime::TimeZone::TimeZone(wxDateTime::TZ tz) // static functions // ---------------------------------------------------------------------------- +/* static */ +struct tm *wxDateTime::GetTmNow(struct tm *tmstruct) +{ + time_t t = GetTimeNow(); + return wxLocaltime_r(&t, tmstruct); +} + /* static */ bool wxDateTime::IsLeapYear(int year, wxDateTime::Calendar cal) { @@ -791,7 +537,7 @@ bool wxDateTime::IsLeapYear(int year, wxDateTime::Calendar cal) } else { - wxFAIL_MSG(_T("unknown calendar")); + wxFAIL_MSG(wxT("unknown calendar")); return false; } @@ -819,11 +565,11 @@ int wxDateTime::GetCurrentYear(wxDateTime::Calendar cal) return Now().GetYear(); case Julian: - wxFAIL_MSG(_T("TODO")); + wxFAIL_MSG(wxT("TODO")); break; default: - wxFAIL_MSG(_T("unsupported calendar")); + wxFAIL_MSG(wxT("unsupported calendar")); break; } @@ -839,11 +585,11 @@ wxDateTime::Month wxDateTime::GetCurrentMonth(wxDateTime::Calendar cal) return Now().GetMonth(); case Julian: - wxFAIL_MSG(_T("TODO")); + wxFAIL_MSG(wxT("TODO")); break; default: - wxFAIL_MSG(_T("unsupported calendar")); + wxFAIL_MSG(wxT("unsupported calendar")); break; } @@ -866,7 +612,7 @@ wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(int year, Calendar cal) return IsLeapYear(year) ? 366 : 365; default: - wxFAIL_MSG(_T("unsupported calendar")); + wxFAIL_MSG(wxT("unsupported calendar")); break; } @@ -878,7 +624,7 @@ wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month, int year, wxDateTime::Calendar cal) { - wxCHECK_MSG( month < MONTHS_IN_YEAR, 0, _T("invalid month") ); + wxCHECK_MSG( month < MONTHS_IN_YEAR, 0, wxT("invalid month") ); if ( cal == Gregorian || cal == Julian ) { @@ -892,76 +638,105 @@ wxDateTime::wxDateTime_t wxDateTime::GetNumberOfDays(wxDateTime::Month month, } else { - wxFAIL_MSG(_T("unsupported calendar")); + wxFAIL_MSG(wxT("unsupported calendar")); return 0; } } +namespace +{ + +// helper function used by GetEnglish/WeekDayName(): returns 0 if flags is +// Name_Full and 1 if it is Name_Abbr or -1 if the flags is incorrect (and +// asserts in this case) +// +// the return value of this function is used as an index into 2D array +// containing full names in its first row and abbreviated ones in the 2nd one +int NameArrayIndexFromFlag(wxDateTime::NameFlags flags) +{ + switch ( flags ) + { + case wxDateTime::Name_Full: + return 0; + + case wxDateTime::Name_Abbr: + return 1; + + default: + wxFAIL_MSG( "unknown wxDateTime::NameFlags value" ); + } + + return -1; +} + +} // anonymous namespace + +/* static */ +wxString wxDateTime::GetEnglishMonthName(Month month, NameFlags flags) +{ + wxCHECK_MSG( month != Inv_Month, wxEmptyString, "invalid month" ); + + static const char *const monthNames[2][MONTHS_IN_YEAR] = + { + { "January", "February", "March", "April", "May", "June", + "July", "August", "September", "October", "November", "December" }, + { "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" } + }; + + const int idx = NameArrayIndexFromFlag(flags); + if ( idx == -1 ) + return wxString(); + + return monthNames[idx][month]; +} + /* static */ wxString wxDateTime::GetMonthName(wxDateTime::Month month, wxDateTime::NameFlags flags) { - wxCHECK_MSG( month != Inv_Month, wxEmptyString, _T("invalid month") ); -#ifdef HAVE_STRFTIME +#ifdef wxHAS_STRFTIME + wxCHECK_MSG( month != Inv_Month, wxEmptyString, wxT("invalid month") ); + // notice that we must set all the fields to avoid confusing libc (GNU one // gets confused to a crash if we don't do this) tm tm; InitTm(tm); tm.tm_mon = month; - return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm); -#else // !HAVE_STRFTIME - wxString ret; - switch(month) + return CallStrftime(flags == Name_Abbr ? wxT("%b") : wxT("%B"), &tm); +#else // !wxHAS_STRFTIME + return GetEnglishMonthName(month, flags); +#endif // wxHAS_STRFTIME/!wxHAS_STRFTIME +} + +/* static */ +wxString wxDateTime::GetEnglishWeekDayName(WeekDay wday, NameFlags flags) +{ + wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, wxT("invalid weekday") ); + + static const char *const weekdayNames[2][DAYS_PER_WEEK] = { - case Jan: - ret = (flags == Name_Abbr ? wxT("Jan"): wxT("January")); - break; - case Feb: - ret = (flags == Name_Abbr ? wxT("Feb"): wxT("Febuary")); - break; - case Mar: - ret = (flags == Name_Abbr ? wxT("Mar"): wxT("March")); - break; - case Apr: - ret = (flags == Name_Abbr ? wxT("Apr"): wxT("April")); - break; - case May: - ret = (flags == Name_Abbr ? wxT("May"): wxT("May")); - break; - case Jun: - ret = (flags == Name_Abbr ? wxT("Jun"): wxT("June")); - break; - case Jul: - ret = (flags == Name_Abbr ? wxT("Jul"): wxT("July")); - break; - case Aug: - ret = (flags == Name_Abbr ? wxT("Aug"): wxT("August")); - break; - case Sep: - ret = (flags == Name_Abbr ? wxT("Sep"): wxT("September")); - break; - case Oct: - ret = (flags == Name_Abbr ? wxT("Oct"): wxT("October")); - break; - case Nov: - ret = (flags == Name_Abbr ? wxT("Nov"): wxT("November")); - break; - case Dec: - ret = (flags == Name_Abbr ? wxT("Dec"): wxT("December")); - break; - } - return ret; -#endif // HAVE_STRFTIME/!HAVE_STRFTIME + { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", + "Saturday" }, + { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }, + }; + + const int idx = NameArrayIndexFromFlag(flags); + if ( idx == -1 ) + return wxString(); + + return weekdayNames[idx][wday]; } /* static */ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, wxDateTime::NameFlags flags) { - wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, _T("invalid weekday") ); -#ifdef HAVE_STRFTIME +#ifdef wxHAS_STRFTIME + wxCHECK_MSG( wday != Inv_WeekDay, wxEmptyString, wxT("invalid weekday") ); + // take some arbitrary Sunday (but notice that the day should be such that // after adding wday to it below we still have a valid date, e.g. don't // take 28 here!) @@ -978,35 +753,10 @@ wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, (void)mktime(&tm); // ... and call strftime() - return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm); -#else // !HAVE_STRFTIME - wxString ret; - switch(wday) - { - case Sun: - ret = (flags == Name_Abbr ? wxT("Sun") : wxT("Sunday")); - break; - case Mon: - ret = (flags == Name_Abbr ? wxT("Mon") : wxT("Monday")); - break; - case Tue: - ret = (flags == Name_Abbr ? wxT("Tue") : wxT("Tuesday")); - break; - case Wed: - ret = (flags == Name_Abbr ? wxT("Wed") : wxT("Wednesday")); - break; - case Thu: - ret = (flags == Name_Abbr ? wxT("Thu") : wxT("Thursday")); - break; - case Fri: - ret = (flags == Name_Abbr ? wxT("Fri") : wxT("Friday")); - break; - case Sat: - ret = (flags == Name_Abbr ? wxT("Sat") : wxT("Saturday")); - break; - } - return ret; -#endif // HAVE_STRFTIME/!HAVE_STRFTIME + return CallStrftime(flags == Name_Abbr ? wxT("%a") : wxT("%A"), &tm); +#else // !wxHAS_STRFTIME + return GetEnglishWeekDayName(wday, flags); +#endif // wxHAS_STRFTIME/!wxHAS_STRFTIME } /* static */ @@ -1025,7 +775,7 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm) // assert, even though it is a perfectly legal use. if ( am ) { - if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0) + if (wxStrftime(buffer, WXSIZEOF(buffer), wxT("%p"), &tm) > 0) *am = wxString(buffer); else *am = wxString(); @@ -1033,13 +783,14 @@ void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm) if ( pm ) { tm.tm_hour = 13; - if (wxStrftime(buffer, sizeof(buffer)/sizeof(wxChar), _T("%p"), &tm) > 0) + if (wxStrftime(buffer, WXSIZEOF(buffer), wxT("%p"), &tm) > 0) *pm = wxString(buffer); else *pm = wxString(); } } + // ---------------------------------------------------------------------------- // Country stuff: date calculations depend on the country (DST, work days, // ...), so we need to know which rules to follow. @@ -1057,24 +808,24 @@ wxDateTime::Country wxDateTime::GetCountry() struct tm tmstruct; struct tm *tm = wxLocaltime_r(&t, &tmstruct); - wxString tz = CallStrftime(_T("%Z"), tm); - if ( tz == _T("WET") || tz == _T("WEST") ) + wxString tz = CallStrftime(wxT("%Z"), tm); + if ( tz == wxT("WET") || tz == wxT("WEST") ) { ms_country = UK; } - else if ( tz == _T("CET") || tz == _T("CEST") ) + else if ( tz == wxT("CET") || tz == wxT("CEST") ) { ms_country = Country_EEC; } - else if ( tz == _T("MSK") || tz == _T("MSD") ) + else if ( tz == wxT("MSK") || tz == wxT("MSD") ) { ms_country = Russia; } - else if ( tz == _T("AST") || tz == _T("ADT") || - tz == _T("EST") || tz == _T("EDT") || - tz == _T("CST") || tz == _T("CDT") || - tz == _T("MST") || tz == _T("MDT") || - tz == _T("PST") || tz == _T("PDT") ) + else if ( tz == wxT("AST") || tz == wxT("ADT") || + tz == wxT("EST") || tz == wxT("EDT") || + tz == wxT("CST") || tz == wxT("CDT") || + tz == wxT("MST") || tz == wxT("MDT") || + tz == wxT("PST") || tz == wxT("PDT") ) { ms_country = USA; } @@ -1173,13 +924,10 @@ wxDateTime wxDateTime::GetBeginDST(int year, Country country) if ( !dt.SetToLastWeekDay(Sun, Mar, year) ) { // weird... - wxFAIL_MSG( _T("no last Sunday in March?") ); + wxFAIL_MSG( wxT("no last Sunday in March?") ); } dt += wxTimeSpan::Hours(1); - - // disable DST tests because it could result in an infinite recursion! - dt.MakeGMT(true); } else switch ( country ) { @@ -1219,7 +967,18 @@ wxDateTime wxDateTime::GetBeginDST(int year, Country country) if ( !dt.SetToLastWeekDay(Sun, Apr, year) ) { // weird... - wxFAIL_MSG( _T("no first Sunday in April?") ); + wxFAIL_MSG( wxT("no first Sunday in April?") ); + } + } + else if ( year > 2006 ) + // Energy Policy Act of 2005, Pub. L. no. 109-58, 119 Stat 594 (2005). + // Starting in 2007, daylight time begins in the United States on the + // second Sunday in March and ends on the first Sunday in November + { + if ( !dt.SetToWeekDay(Sun, 2, Mar, year) ) + { + // weird... + wxFAIL_MSG( wxT("no second Sunday in March?") ); } } else @@ -1227,7 +986,7 @@ wxDateTime wxDateTime::GetBeginDST(int year, Country country) if ( !dt.SetToWeekDay(Sun, 1, Apr, year) ) { // weird... - wxFAIL_MSG( _T("no first Sunday in April?") ); + wxFAIL_MSG( wxT("no first Sunday in April?") ); } } @@ -1274,13 +1033,10 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country) if ( !dt.SetToLastWeekDay(Sun, Oct, year) ) { // weirder and weirder... - wxFAIL_MSG( _T("no last Sunday in October?") ); + wxFAIL_MSG( wxT("no last Sunday in October?") ); } dt += wxTimeSpan::Hours(1); - - // disable DST tests because it could result in an infinite recursion! - dt.MakeGMT(true); } else switch ( country ) { @@ -1301,21 +1057,36 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country) dt.Set(30, Sep, year); break; - default: - // DST ends at 2 a.m. on the last Sunday of October - if ( !dt.SetToLastWeekDay(Sun, Oct, year) ) + default: // default for switch (year) + if ( year > 2006 ) + // Energy Policy Act of 2005, Pub. L. no. 109-58, 119 Stat 594 (2005). + // Starting in 2007, daylight time begins in the United States on the + // second Sunday in March and ends on the first Sunday in November + { + if ( !dt.SetToWeekDay(Sun, 1, Nov, year) ) + { + // weird... + wxFAIL_MSG( wxT("no first Sunday in November?") ); + } + } + else + // pre-2007 + // DST ends at 2 a.m. on the last Sunday of October { - // weirder and weirder... - wxFAIL_MSG( _T("no last Sunday in October?") ); + if ( !dt.SetToLastWeekDay(Sun, Oct, year) ) + { + // weirder and weirder... + wxFAIL_MSG( wxT("no last Sunday in October?") ); + } } dt += wxTimeSpan::Hours(2); - // TODO what about timezone?? + // TODO: what about timezone?? } break; - default: + default: // default for switch (country) // assume October 26th as the end of the DST - totally bogus too dt.Set(26, Oct, year); } @@ -1330,7 +1101,7 @@ wxDateTime wxDateTime::GetEndDST(int year, Country country) // return the current time with ms precision /* static */ wxDateTime wxDateTime::UNow() { - return wxDateTime(wxGetLocalTimeMillis()); + return wxDateTime(wxGetUTCTimeMillis()); } // the values in the tm structure contain the local time @@ -1346,22 +1117,49 @@ wxDateTime& wxDateTime::Set(const struct tm& tm) if ( tm2.tm_year == 70 && tm2.tm_mon == 0 && tm2.tm_mday == 1 ) { return Set((time_t)( - GetTimeZone() + + wxGetTimeZone() + tm2.tm_hour * MIN_PER_HOUR * SEC_PER_MIN + tm2.tm_min * SEC_PER_MIN + tm2.tm_sec)); } - wxFAIL_MSG( _T("mktime() failed") ); + wxFAIL_MSG( wxT("mktime() failed") ); *this = wxInvalidDateTime; return *this; } - else + + // mktime() only adjusts tm_wday, tm_yday and tm_isdst fields normally, if + // it changed anything else, it must have performed the DST adjustment. But + // the trouble with this is that different implementations do it + // differently, e.g. GNU libc moves the time forward if the specified time + // is invalid in the local time zone, while MSVC CRT moves it backwards + // which is especially pernicious as it can change the date if the DST + // starts at midnight, as it does in some time zones (see #15419), and this + // is completely unexpected for the code working with dates only. + // + // So standardize on moving the time forwards to have consistent behaviour + // under all platforms and to avoid the problem above. + if ( tm2.tm_hour != tm.tm_hour ) { - return Set(timet); + tm2 = tm; + tm2.tm_hour++; + if ( tm2.tm_hour == 24 ) + { + // This shouldn't normally happen as the DST never starts at 23:00 + // but if it does, we have a problem as we need to adjust the day + // as well. However we stop here, i.e. we don't adjust the month + // (or the year) because mktime() is supposed to take care of this + // for us. + tm2.tm_hour = 0; + tm2.tm_mday++; + } + + timet = mktime(&tm2); } + + return Set(timet); } wxDateTime& wxDateTime::Set(wxDateTime_t hour, @@ -1375,13 +1173,13 @@ wxDateTime& wxDateTime::Set(wxDateTime_t hour, second < 62 && minute < 60 && millisec < 1000, - _T("Invalid time in wxDateTime::Set()") ); + wxT("Invalid time in wxDateTime::Set()") ); // get the current date from system struct tm tmstruct; struct tm *tm = GetTmNow(&tmstruct); - wxDATETIME_CHECK( tm, _T("wxLocaltime_r() failed") ); + wxDATETIME_CHECK( tm, wxT("wxLocaltime_r() failed") ); // make a copy so it isn't clobbered by the call to mktime() below struct tm tm1(*tm); @@ -1415,12 +1213,12 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day, second < 62 && minute < 60 && millisec < 1000, - _T("Invalid time in wxDateTime::Set()") ); + wxT("Invalid time in wxDateTime::Set()") ); ReplaceDefaultYearMonthWithCurrent(&year, &month); wxDATETIME_CHECK( (0 < day) && (day <= GetNumberOfDays(month, year)), - _T("Invalid date in wxDateTime::Set()") ); + wxT("Invalid date in wxDateTime::Set()") ); // the range of time_t type (inclusive) static const int yearMinInRange = 1970; @@ -1460,7 +1258,7 @@ wxDateTime& wxDateTime::Set(wxDateTime_t day, m_time *= SECONDS_PER_DAY * TIME_T_FACTOR; // JDN corresponds to GMT, we take localtime - Add(wxTimeSpan(hour, minute, second + GetTimeZone(), millisec)); + Add(wxTimeSpan(hour, minute, second + wxGetTimeZone(), millisec)); } return *this; @@ -1496,6 +1294,16 @@ wxDateTime& wxDateTime::ResetTime() return *this; } +wxDateTime wxDateTime::GetDateOnly() const +{ + Tm tm = GetTm(); + tm.msec = + tm.sec = + tm.min = + tm.hour = 0; + return wxDateTime(tm); +} + // ---------------------------------------------------------------------------- // DOS Date and Time Format functions // ---------------------------------------------------------------------------- @@ -1549,6 +1357,7 @@ unsigned long wxDateTime::GetAsDOS() const time_t ticks = GetTicks(); struct tm tmstruct; struct tm *tm = wxLocaltime_r(&ticks, &tmstruct); + wxCHECK_MSG( tm, ULONG_MAX, wxT("time can't be represented in DOS format") ); long year = tm->tm_year; year -= 80; @@ -1580,7 +1389,7 @@ unsigned long wxDateTime::GetAsDOS() const wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime") ); time_t time = GetTicks(); if ( time != (time_t)-1 ) @@ -1588,13 +1397,13 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const // use C RTL functions struct tm tmstruct; tm *tm; - if ( tz.GetOffset() == -GetTimeZone() ) + if ( tz.GetOffset() == -wxGetTimeZone() ) { // we are working with local time tm = wxLocaltime_r(&time, &tmstruct); // should never happen - wxCHECK_MSG( tm, Tm(), _T("wxLocaltime_r() failed") ); + wxCHECK_MSG( tm, Tm(), wxT("wxLocaltime_r() failed") ); } else { @@ -1609,7 +1418,7 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const tm = wxGmtime_r(&time, &tmstruct); // should never happen - wxCHECK_MSG( tm, Tm(), _T("wxGmtime_r() failed") ); + wxCHECK_MSG( tm, Tm(), wxT("wxGmtime_r() failed") ); } else { @@ -1652,7 +1461,7 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const // CREDIT: code below is by Scott E. Lee (but bugs are mine) - wxASSERT_MSG( jdn > -2, _T("JDN out of range") ); + wxASSERT_MSG( jdn > -2, wxT("JDN out of range") ); // calculate the century long temp = (jdn + JDN_OFFSET) * 4 - 1; @@ -1683,12 +1492,13 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const year -= 4800; // check that the algorithm gave us something reasonable - wxASSERT_MSG( (0 < month) && (month <= 12), _T("invalid month") ); - wxASSERT_MSG( (1 <= day) && (day < 32), _T("invalid day") ); + wxASSERT_MSG( (0 < month) && (month <= 12), wxT("invalid month") ); + wxASSERT_MSG( (1 <= day) && (day < 32), wxT("invalid day") ); // construct Tm from these values Tm tm; tm.year = (int)year; + tm.yday = (wxDateTime_t)(dayOfYear - 1); // use C convention for day number tm.mon = (Month)(month - 1); // algorithm yields 1 for January, not 0 tm.mday = (wxDateTime_t)day; tm.msec = (wxDateTime_t)(timeOnly % 1000); @@ -1709,7 +1519,7 @@ wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const wxDateTime& wxDateTime::SetYear(int year) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime") ); Tm tm(GetTm()); tm.year = year; @@ -1720,7 +1530,7 @@ wxDateTime& wxDateTime::SetYear(int year) wxDateTime& wxDateTime::SetMonth(Month month) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime") ); Tm tm(GetTm()); tm.mon = month; @@ -1731,7 +1541,7 @@ wxDateTime& wxDateTime::SetMonth(Month month) wxDateTime& wxDateTime::SetDay(wxDateTime_t mday) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime") ); Tm tm(GetTm()); tm.mday = mday; @@ -1742,7 +1552,7 @@ wxDateTime& wxDateTime::SetDay(wxDateTime_t mday) wxDateTime& wxDateTime::SetHour(wxDateTime_t hour) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime") ); Tm tm(GetTm()); tm.hour = hour; @@ -1753,7 +1563,7 @@ wxDateTime& wxDateTime::SetHour(wxDateTime_t hour) wxDateTime& wxDateTime::SetMinute(wxDateTime_t min) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime") ); Tm tm(GetTm()); tm.min = min; @@ -1764,7 +1574,7 @@ wxDateTime& wxDateTime::SetMinute(wxDateTime_t min) wxDateTime& wxDateTime::SetSecond(wxDateTime_t sec) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime") ); Tm tm(GetTm()); tm.sec = sec; @@ -1775,7 +1585,7 @@ wxDateTime& wxDateTime::SetSecond(wxDateTime_t sec) wxDateTime& wxDateTime::SetMillisecond(wxDateTime_t millisecond) { - wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") ); + wxASSERT_MSG( IsValid(), wxT("invalid wxDateTime") ); // we don't need to use GetTm() for this one m_time -= m_time % 1000l; @@ -1813,11 +1623,61 @@ wxDateTime& wxDateTime::Add(const wxDateSpan& diff) Set(tm); wxASSERT_MSG( IsSameTime(tm), - _T("Add(wxDateSpan) shouldn't modify time") ); + wxT("Add(wxDateSpan) shouldn't modify time") ); return *this; } +wxDateSpan wxDateTime::DiffAsDateSpan(const wxDateTime& dt) const +{ + wxASSERT_MSG( IsValid() && dt.IsValid(), wxT("invalid wxDateTime")); + + // If dt is larger than this, calculations below needs to be inverted. + int inv = 1; + if ( dt > *this ) + inv = -1; + + int y = GetYear() - dt.GetYear(); + int m = GetMonth() - dt.GetMonth(); + int d = GetDay() - dt.GetDay(); + + // If month diff is negative, dt is the year before, so decrease year + // and set month diff to its inverse, e.g. January - December should be 1, + // not -11. + if ( m * inv < 0 || (m == 0 && d * inv < 0)) + { + m += inv * MONTHS_IN_YEAR; + y -= inv; + } + + // Same logic for days as for months above. + if ( d * inv < 0 ) + { + // Use number of days in month from the month which end date we're + // crossing. That is month before this for positive diff, and this + // month for negative diff. + // If we're on january and using previous month, we get december + // previous year, but don't care, december has same amount of days + // every year. + wxDateTime::Month monthfordays = GetMonth(); + if (inv > 0 && monthfordays == wxDateTime::Jan) + monthfordays = wxDateTime::Dec; + else if (inv > 0) + monthfordays = static_cast(monthfordays - 1); + + d += inv * wxDateTime::GetNumberOfDays(monthfordays, GetYear()); + m -= inv; + } + + int w = d / DAYS_PER_WEEK; + + // Remove weeks from d, since wxDateSpan only keep days as the ones + // not in complete weeks + d -= w * DAYS_PER_WEEK; + + return wxDateSpan(y, m, w, d); +} + // ---------------------------------------------------------------------------- // Weekday and monthday stuff // ---------------------------------------------------------------------------- @@ -1833,7 +1693,7 @@ wxDateTime wxDateTime::SetToWeekOfYear(int year, wxDateTime_t numWeek, WeekDay wd) { wxASSERT_MSG( numWeek > 0, - _T("invalid week number: weeks are counted from 1") ); + wxT("invalid week number: weeks are counted from 1") ); // Jan 4 always lies in the 1st week of the year wxDateTime dt(4, Jan, year); @@ -1897,7 +1757,7 @@ wxDateTime& wxDateTime::SetToLastMonthDay(Month month, wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags) { - wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); + wxDATETIME_CHECK( weekday != Inv_WeekDay, wxT("invalid weekday") ); int wdayDst = weekday, wdayThis = GetWeekDay(); @@ -1937,7 +1797,7 @@ wxDateTime& wxDateTime::SetToWeekDayInSameWeek(WeekDay weekday, WeekFlags flags) wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday) { - wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); + wxDATETIME_CHECK( weekday != Inv_WeekDay, wxT("invalid weekday") ); int diff; WeekDay wdayThis = GetWeekDay(); @@ -1961,7 +1821,7 @@ wxDateTime& wxDateTime::SetToNextWeekDay(WeekDay weekday) wxDateTime& wxDateTime::SetToPrevWeekDay(WeekDay weekday) { - wxDATETIME_CHECK( weekday != Inv_WeekDay, _T("invalid weekday") ); + wxDATETIME_CHECK( weekday != Inv_WeekDay, wxT("invalid weekday") ); int diff; WeekDay wdayThis = GetWeekDay(); @@ -1988,7 +1848,7 @@ bool wxDateTime::SetToWeekDay(WeekDay weekday, Month month, int year) { - wxCHECK_MSG( weekday != Inv_WeekDay, false, _T("invalid weekday") ); + wxCHECK_MSG( weekday != Inv_WeekDay, false, wxT("invalid weekday") ); // we don't check explicitly that -5 <= n <= 5 because we will return false // anyhow in such case - but may be should still give an assert for it? @@ -2087,7 +1947,6 @@ wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const { // adjust the weekdays to non-US style. wdYearStart = ConvertWeekDayToMondayBase(wdYearStart); - wdTarget = ConvertWeekDayToMondayBase(wdTarget); // quoting from http://www.cl.cam.ac.uk/~mgk25/iso-time.html: // @@ -2103,22 +1962,24 @@ wxDateTime::GetWeekOfYear(wxDateTime::WeekFlags flags, const TimeZone& tz) const // // if Jan 1 is Thursday or less, it is in the first week of this year - if ( wdYearStart < 4 ) - { - // count the number of entire weeks between Jan 1 and this date - week = (nDayInYear + wdYearStart + 6 - wdTarget)/7; + int dayCountFix = wdYearStart < 4 ? 6 : -1; - // be careful to check for overflow in the next year - if ( week == 53 && tm.mday - wdTarget > 28 ) - week = 1; + // count the number of week + week = (nDayInYear + wdYearStart + dayCountFix) / DAYS_PER_WEEK; + + // check if we happen to be at the last week of previous year: + if ( week == 0 ) + { + week = wxDateTime(31, Dec, GetYear() - 1).GetWeekOfYear(); } - else // Jan 1 is in the last week of the previous year + else if ( week == 53 ) { - // check if we happen to be at the last week of previous year: - if ( tm.mon == Jan && tm.mday < 8 - wdYearStart ) - week = wxDateTime(31, Dec, GetYear()-1).GetWeekOfYear(); - else - week = (nDayInYear + wdYearStart - 1 - wdTarget)/7; + int wdYearEnd = (wdYearStart + 364 + IsLeapYear(GetYear())) + % DAYS_PER_WEEK; + + // Week 53 only if last day of year is Thursday or later. + if ( wdYearEnd < 3 ) + week = 1; } } @@ -2129,23 +1990,29 @@ wxDateTime::wxDateTime_t wxDateTime::GetWeekOfMonth(wxDateTime::WeekFlags flags, const TimeZone& tz) const { Tm tm = GetTm(tz); - wxDateTime dtMonthStart = wxDateTime(1, tm.mon, tm.year); - int nWeek = GetWeekOfYear(flags) - dtMonthStart.GetWeekOfYear(flags) + 1; - if ( nWeek < 0 ) + const wxDateTime dateFirst = wxDateTime(1, tm.mon, tm.year); + const wxDateTime::WeekDay wdFirst = dateFirst.GetWeekDay(); + + if ( flags == Default_First ) { - // this may happen for January when Jan, 1 is the last week of the - // previous year - nWeek += IsLeapYear(tm.year - 1) ? 53 : 52; + flags = GetCountry() == USA ? Sunday_First : Monday_First; } - return (wxDateTime::wxDateTime_t)nWeek; + // compute offset of dateFirst from the beginning of the week + int firstOffset; + if ( flags == Sunday_First ) + firstOffset = wdFirst - Sun; + else + firstOffset = wdFirst == Sun ? DAYS_PER_WEEK - 1 : wdFirst - Mon; + + return (wxDateTime::wxDateTime_t)((tm.mday - 1 + firstOffset)/7 + 1); } wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday) { int year = GetYear(); wxDATETIME_CHECK( (0 < yday) && (yday <= GetNumberOfDays(year)), - _T("invalid year day") ); + wxT("invalid year day") ); bool isLeap = IsLeapYear(year); for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) ) @@ -2186,7 +2053,7 @@ double wxDateTime::GetRataDie() const int wxDateTime::IsDST(wxDateTime::Country country) const { wxCHECK_MSG( country == Country_Default, -1, - _T("country support not implemented") ); + wxT("country support not implemented") ); // use the C RTL for the dates in the standard range time_t timet = GetTicks(); @@ -2195,7 +2062,7 @@ int wxDateTime::IsDST(wxDateTime::Country country) const struct tm tmstruct; tm *tm = wxLocaltime_r(&timet, &tmstruct); - wxCHECK_MSG( tm, -1, _T("wxLocaltime_r() failed") ); + wxCHECK_MSG( tm, -1, wxT("wxLocaltime_r() failed") ); return tm->tm_isdst; } @@ -2215,7 +2082,7 @@ int wxDateTime::IsDST(wxDateTime::Country country) const wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST) { - long secDiff = GetTimeZone() + tz.GetOffset(); + long secDiff = wxGetTimeZone() + tz.GetOffset(); // we need to know whether DST is or not in effect for this date unless // the test disabled by the caller @@ -2230,7 +2097,7 @@ wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST) wxDateTime& wxDateTime::MakeFromTimezone(const TimeZone& tz, bool noDST) { - long secDiff = GetTimeZone() + tz.GetOffset(); + long secDiff = wxGetTimeZone() + tz.GetOffset(); // we need to know whether DST is or not in effect for this date unless // the test disabled by the caller @@ -2243,2168 +2110,13 @@ wxDateTime& wxDateTime::MakeFromTimezone(const TimeZone& tz, bool noDST) return Subtract(wxTimeSpan::Seconds(secDiff)); } -// ---------------------------------------------------------------------------- -// wxDateTime to/from text representations -// ---------------------------------------------------------------------------- +// ============================================================================ +// wxDateTimeHolidayAuthority and related classes +// ============================================================================ -wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const -{ - wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxDateTime::Format") ); +#include "wx/arrimpl.cpp" - time_t time = GetTicks(); - - // we have to use our own implementation if the date is out of range of - // strftime() or if we use non standard specificators -#ifdef HAVE_STRFTIME - if ( (time != (time_t)-1) && !wxStrstr(format, _T("%l")) ) - { - // use strftime() - struct tm tmstruct; - struct tm *tm; - if ( tz.GetOffset() == -GetTimeZone() ) - { - // we are working with local time - tm = wxLocaltime_r(&time, &tmstruct); - - // should never happen - wxCHECK_MSG( tm, wxEmptyString, _T("wxLocaltime_r() failed") ); - } - else - { - time += (int)tz.GetOffset(); - -#if defined(__VMS__) || defined(__WATCOMC__) // time is unsigned so avoid warning - int time2 = (int) time; - if ( time2 >= 0 ) -#else - if ( time >= 0 ) -#endif - { - tm = wxGmtime_r(&time, &tmstruct); - - // should never happen - wxCHECK_MSG( tm, wxEmptyString, _T("wxGmtime_r() failed") ); - } - else - { - tm = (struct tm *)NULL; - } - } - - if ( tm ) - { - return CallStrftime(format, tm); - } - } - //else: use generic code below -#endif // HAVE_STRFTIME - - // we only parse ANSI C format specifications here, no POSIX 2 - // complications, no GNU extensions but we do add support for a "%l" format - // specifier allowing to get the number of milliseconds - Tm tm = GetTm(tz); - - // used for calls to strftime() when we only deal with time - struct tm tmTimeOnly; - tmTimeOnly.tm_hour = tm.hour; - tmTimeOnly.tm_min = tm.min; - tmTimeOnly.tm_sec = tm.sec; - tmTimeOnly.tm_wday = 0; - tmTimeOnly.tm_yday = 0; - tmTimeOnly.tm_mday = 1; // any date will do - tmTimeOnly.tm_mon = 0; - tmTimeOnly.tm_year = 76; - tmTimeOnly.tm_isdst = 0; // no DST, we adjust for tz ourselves - - wxString tmp, res, fmt; - for ( const wxChar *p = format; *p; p++ ) - { - if ( *p != _T('%') ) - { - // copy as is - res += *p; - - continue; - } - - // set the default format - switch ( *++p ) - { - case _T('Y'): // year has 4 digits - fmt = _T("%04d"); - break; - - case _T('j'): // day of year has 3 digits - case _T('l'): // milliseconds have 3 digits - fmt = _T("%03d"); - break; - - case _T('w'): // week day as number has only one - fmt = _T("%d"); - break; - - default: - // it's either another valid format specifier in which case - // the format is "%02d" (for all the rest) or we have the - // field width preceding the format in which case it will - // override the default format anyhow - fmt = _T("%02d"); - } - - bool restart = true; - while ( restart ) - { - restart = false; - - // start of the format specification - switch ( *p ) - { - case _T('a'): // a weekday name - case _T('A'): - // second parameter should be true for abbreviated names - res += GetWeekDayName(tm.GetWeekDay(), - *p == _T('a') ? Name_Abbr : Name_Full); - break; - - case _T('b'): // a month name - case _T('B'): - res += GetMonthName(tm.mon, - *p == _T('b') ? Name_Abbr : Name_Full); - break; - - case _T('c'): // locale default date and time representation - case _T('x'): // locale default date representation -#ifdef HAVE_STRFTIME - // - // the problem: there is no way to know what do these format - // specifications correspond to for the current locale. - // - // the solution: use a hack and still use strftime(): first - // find the YEAR which is a year in the strftime() range (1970 - // - 2038) whose Jan 1 falls on the same week day as the Jan 1 - // of the real year. Then make a copy of the format and - // replace all occurrences of YEAR in it with some unique - // string not appearing anywhere else in it, then use - // strftime() to format the date in year YEAR and then replace - // YEAR back by the real year and the unique replacement - // string back with YEAR. Notice that "all occurrences of YEAR" - // means all occurrences of 4 digit as well as 2 digit form! - // - // the bugs: we assume that neither of %c nor %x contains any - // fields which may change between the YEAR and real year. For - // example, the week number (%U, %W) and the day number (%j) - // will change if one of these years is leap and the other one - // is not! - { - // find the YEAR: normally, for any year X, Jan 1 or the - // year X + 28 is the same weekday as Jan 1 of X (because - // the weekday advances by 1 for each normal X and by 2 - // for each leap X, hence by 5 every 4 years or by 35 - // which is 0 mod 7 every 28 years) but this rule breaks - // down if there are years between X and Y which are - // divisible by 4 but not leap (i.e. divisible by 100 but - // not 400), hence the correction. - - int yearReal = GetYear(tz); - int mod28 = yearReal % 28; - - // be careful to not go too far - we risk to leave the - // supported range - int year; - if ( mod28 < 10 ) - { - year = 1988 + mod28; // 1988 == 0 (mod 28) - } - else - { - year = 1970 + mod28 - 10; // 1970 == 10 (mod 28) - } - - int nCentury = year / 100, - nCenturyReal = yearReal / 100; - - // need to adjust for the years divisble by 400 which are - // not leap but are counted like leap ones if we just take - // the number of centuries in between for nLostWeekDays - int nLostWeekDays = (nCentury - nCenturyReal) - - (nCentury / 4 - nCenturyReal / 4); - - // we have to gain back the "lost" weekdays: note that the - // effect of this loop is to not do anything to - // nLostWeekDays (which we won't use any more), but to - // (indirectly) set the year correctly - while ( (nLostWeekDays % 7) != 0 ) - { - nLostWeekDays += year++ % 4 ? 1 : 2; - } - - // Keep year below 2000 so the 2digit year number - // can never match the month or day of the month - if (year>=2000) year-=28; - // at any rate, we couldn't go further than 1988 + 9 + 28! - wxASSERT_MSG( year < 2030, - _T("logic error in wxDateTime::Format") ); - - wxString strYear, strYear2; - strYear.Printf(_T("%d"), year); - strYear2.Printf(_T("%d"), year % 100); - - // find four strings not occurring in format (this is surely - // not the optimal way of doing it... improvements welcome!) - wxString fmt2 = format; - wxString replacement,replacement2,replacement3,replacement4; - for (int rnr=1; rnr<5 ; rnr++) - { - wxString r = (wxChar)-rnr; - while ( fmt2.Find(r) != wxNOT_FOUND ) - { - r << (wxChar)-rnr; - } - - switch (rnr) - { - case 1: replacement=r; break; - case 2: replacement2=r; break; - case 3: replacement3=r; break; - case 4: replacement4=r; break; - } - } - // replace all occurrences of year with it - bool wasReplaced = fmt2.Replace(strYear, replacement) > 0; - // evaluation order ensures we always attempt the replacement. - wasReplaced = (fmt2.Replace(strYear2, replacement2) > 0) | wasReplaced ; - - // use strftime() to format the same date but in supported - // year - // - // NB: we assume that strftime() doesn't check for the - // date validity and will happily format the date - // corresponding to Feb 29 of a non leap year (which - // may happen if yearReal was leap and year is not) - struct tm tmAdjusted; - InitTm(tmAdjusted); - tmAdjusted.tm_hour = tm.hour; - tmAdjusted.tm_min = tm.min; - tmAdjusted.tm_sec = tm.sec; - tmAdjusted.tm_wday = tm.GetWeekDay(); - tmAdjusted.tm_yday = GetDayOfYear(); - tmAdjusted.tm_mday = tm.mday; - tmAdjusted.tm_mon = tm.mon; - tmAdjusted.tm_year = year - 1900; - tmAdjusted.tm_isdst = 0; // no DST, already adjusted - wxString str = CallStrftime(*p == _T('c') ? _T("%c") - : _T("%x"), - &tmAdjusted); - - // now replace the occurrence of 1999 with the real year - // we do this in two stages to stop the 2 digit year - // matching any substring of the 4 digit year. - // Any day,month hours and minutes components should be safe due - // to ensuring the range of the years. - wxString strYearReal, strYearReal2; - strYearReal.Printf(_T("%04d"), yearReal); - strYearReal2.Printf(_T("%02d"), yearReal % 100); - str.Replace(strYear, replacement3); - str.Replace(strYear2,replacement4); - str.Replace(replacement3, strYearReal); - str.Replace(replacement4, strYearReal2); - - // and replace back all occurrences of replacement string - if ( wasReplaced ) - { - str.Replace(replacement2, strYear2); - str.Replace(replacement, strYear); - } - - res += str; - } -#else // !HAVE_STRFTIME - // Use "%m/%d/%y %H:%M:%S" format instead - res += wxString::Format(wxT("%02d/%02d/%04d %02d:%02d:%02d"), - tm.mon+1,tm.mday, tm.year, tm.hour, tm.min, tm.sec); -#endif // HAVE_STRFTIME/!HAVE_STRFTIME - break; - - case _T('d'): // day of a month (01-31) - res += wxString::Format(fmt, tm.mday); - break; - - case _T('H'): // hour in 24h format (00-23) - res += wxString::Format(fmt, tm.hour); - break; - - case _T('I'): // hour in 12h format (01-12) - { - // 24h -> 12h, 0h -> 12h too - int hour12 = tm.hour > 12 ? tm.hour - 12 - : tm.hour ? tm.hour : 12; - res += wxString::Format(fmt, hour12); - } - break; - - case _T('j'): // day of the year - res += wxString::Format(fmt, GetDayOfYear(tz)); - break; - - case _T('l'): // milliseconds (NOT STANDARD) - res += wxString::Format(fmt, GetMillisecond(tz)); - break; - - case _T('m'): // month as a number (01-12) - res += wxString::Format(fmt, tm.mon + 1); - break; - - case _T('M'): // minute as a decimal number (00-59) - res += wxString::Format(fmt, tm.min); - break; - - case _T('p'): // AM or PM string -#ifdef HAVE_STRFTIME - res += CallStrftime(_T("%p"), &tmTimeOnly); -#else // !HAVE_STRFTIME - res += (tmTimeOnly.tm_hour > 12) ? wxT("pm") : wxT("am"); -#endif // HAVE_STRFTIME/!HAVE_STRFTIME - break; - - case _T('S'): // second as a decimal number (00-61) - res += wxString::Format(fmt, tm.sec); - break; - - case _T('U'): // week number in the year (Sunday 1st week day) - res += wxString::Format(fmt, GetWeekOfYear(Sunday_First, tz)); - break; - - case _T('W'): // week number in the year (Monday 1st week day) - res += wxString::Format(fmt, GetWeekOfYear(Monday_First, tz)); - break; - - case _T('w'): // weekday as a number (0-6), Sunday = 0 - res += wxString::Format(fmt, tm.GetWeekDay()); - break; - - // case _T('x'): -- handled with "%c" - - case _T('X'): // locale default time representation - // just use strftime() to format the time for us -#ifdef HAVE_STRFTIME - res += CallStrftime(_T("%X"), &tmTimeOnly); -#else // !HAVE_STRFTIME - res += wxString::Format(wxT("%02d:%02d:%02d"),tm.hour, tm.min, tm.sec); -#endif // HAVE_STRFTIME/!HAVE_STRFTIME - break; - - case _T('y'): // year without century (00-99) - res += wxString::Format(fmt, tm.year % 100); - break; - - case _T('Y'): // year with century - res += wxString::Format(fmt, tm.year); - break; - - case _T('Z'): // timezone name -#ifdef HAVE_STRFTIME - res += CallStrftime(_T("%Z"), &tmTimeOnly); -#endif - break; - - default: - // is it the format width? - fmt.Empty(); - while ( *p == _T('-') || *p == _T('+') || - *p == _T(' ') || wxIsdigit(*p) ) - { - fmt += *p; - } - - if ( !fmt.empty() ) - { - // we've only got the flags and width so far in fmt - fmt.Prepend(_T('%')); - fmt.Append(_T('d')); - - restart = true; - - break; - } - - // no, it wasn't the width - wxFAIL_MSG(_T("unknown format specificator")); - - // fall through and just copy it nevertheless - - case _T('%'): // a percent sign - res += *p; - break; - - case 0: // the end of string - wxFAIL_MSG(_T("missing format at the end of string")); - - // just put the '%' which was the last char in format - res += _T('%'); - break; - } - } - } - - return res; -} - -// this function parses a string in (strict) RFC 822 format: see the section 5 -// of the RFC for the detailed description, but briefly it's something of the -// form "Sat, 18 Dec 1999 00:48:30 +0100" -// -// this function is "strict" by design - it must reject anything except true -// RFC822 time specs. -// -// TODO a great candidate for using reg exps -const wxChar *wxDateTime::ParseRfc822Date(const wxChar* date) -{ - wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); - - const wxChar *p = date; - const wxChar *comma = wxStrchr(p, _T(',')); - if ( comma ) - { - // the part before comma is the weekday - - // skip it for now - we don't use but might check that it really - // corresponds to the specfied date - p = comma + 1; - - if ( *p != _T(' ') ) - { - wxLogDebug(_T("no space after weekday in RFC822 time spec")); - - return (wxChar *)NULL; - } - - p++; // skip space - } - - // the following 1 or 2 digits are the day number - if ( !wxIsdigit(*p) ) - { - wxLogDebug(_T("day number expected in RFC822 time spec, none found")); - - return (wxChar *)NULL; - } - - wxDateTime_t day = (wxDateTime_t)(*p++ - _T('0')); - if ( wxIsdigit(*p) ) - { - day *= 10; - day = (wxDateTime_t)(day + (*p++ - _T('0'))); - } - - if ( *p++ != _T(' ') ) - { - return (wxChar *)NULL; - } - - // the following 3 letters specify the month - wxString monName(p, 3); - Month mon; - if ( monName == _T("Jan") ) - mon = Jan; - else if ( monName == _T("Feb") ) - mon = Feb; - else if ( monName == _T("Mar") ) - mon = Mar; - else if ( monName == _T("Apr") ) - mon = Apr; - else if ( monName == _T("May") ) - mon = May; - else if ( monName == _T("Jun") ) - mon = Jun; - else if ( monName == _T("Jul") ) - mon = Jul; - else if ( monName == _T("Aug") ) - mon = Aug; - else if ( monName == _T("Sep") ) - mon = Sep; - else if ( monName == _T("Oct") ) - mon = Oct; - else if ( monName == _T("Nov") ) - mon = Nov; - else if ( monName == _T("Dec") ) - mon = Dec; - else - { - wxLogDebug(_T("Invalid RFC 822 month name '%s'"), monName.c_str()); - - return (wxChar *)NULL; - } - - p += 3; - - if ( *p++ != _T(' ') ) - { - return (wxChar *)NULL; - } - - // next is the year - if ( !wxIsdigit(*p) ) - { - // no year? - return (wxChar *)NULL; - } - - int year = *p++ - _T('0'); - - if ( !wxIsdigit(*p) ) - { - // should have at least 2 digits in the year - return (wxChar *)NULL; - } - - year *= 10; - year += *p++ - _T('0'); - - // is it a 2 digit year (as per original RFC 822) or a 4 digit one? - if ( wxIsdigit(*p) ) - { - year *= 10; - year += *p++ - _T('0'); - - if ( !wxIsdigit(*p) ) - { - // no 3 digit years please - return (wxChar *)NULL; - } - - year *= 10; - year += *p++ - _T('0'); - } - - if ( *p++ != _T(' ') ) - { - return (wxChar *)NULL; - } - - // time is in the format hh:mm:ss and seconds are optional - if ( !wxIsdigit(*p) ) - { - return (wxChar *)NULL; - } - - wxDateTime_t hour = (wxDateTime_t)(*p++ - _T('0')); - - if ( !wxIsdigit(*p) ) - { - return (wxChar *)NULL; - } - - hour *= 10; - hour = (wxDateTime_t)(hour + (*p++ - _T('0'))); - - if ( *p++ != _T(':') ) - { - return (wxChar *)NULL; - } - - if ( !wxIsdigit(*p) ) - { - return (wxChar *)NULL; - } - - wxDateTime_t min = (wxDateTime_t)(*p++ - _T('0')); - - if ( !wxIsdigit(*p) ) - { - return (wxChar *)NULL; - } - - min *= 10; - min = (wxDateTime_t)(min + *p++ - _T('0')); - - wxDateTime_t sec = 0; - if ( *p++ == _T(':') ) - { - if ( !wxIsdigit(*p) ) - { - return (wxChar *)NULL; - } - - sec = (wxDateTime_t)(*p++ - _T('0')); - - if ( !wxIsdigit(*p) ) - { - return (wxChar *)NULL; - } - - sec *= 10; - sec = (wxDateTime_t)(sec + *p++ - _T('0')); - } - - if ( *p++ != _T(' ') ) - { - return (wxChar *)NULL; - } - - // and now the interesting part: the timezone - int offset wxDUMMY_INITIALIZE(0); - if ( *p == _T('-') || *p == _T('+') ) - { - // the explicit offset given: it has the form of hhmm - bool plus = *p++ == _T('+'); - - if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) ) - { - return (wxChar *)NULL; - } - - // hours - offset = MIN_PER_HOUR*(10*(*p - _T('0')) + (*(p + 1) - _T('0'))); - - p += 2; - - if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) ) - { - return (wxChar *)NULL; - } - - // minutes - offset += 10*(*p - _T('0')) + (*(p + 1) - _T('0')); - - if ( !plus ) - { - offset = -offset; - } - - p += 2; - } - else - { - // the symbolic timezone given: may be either military timezone or one - // of standard abbreviations - if ( !*(p + 1) ) - { - // military: Z = UTC, J unused, A = -1, ..., Y = +12 - static const int offsets[26] = - { - //A B C D E F G H I J K L M - -1, -2, -3, -4, -5, -6, -7, -8, -9, 0, -10, -11, -12, - //N O P R Q S T U V W Z Y Z - +1, +2, +3, +4, +5, +6, +7, +8, +9, +10, +11, +12, 0 - }; - - if ( *p < _T('A') || *p > _T('Z') || *p == _T('J') ) - { - wxLogDebug(_T("Invalid militaty timezone '%c'"), *p); - - return (wxChar *)NULL; - } - - offset = offsets[*p++ - _T('A')]; - } - else - { - // abbreviation - wxString tz = p; - if ( tz == _T("UT") || tz == _T("UTC") || tz == _T("GMT") ) - offset = 0; - else if ( tz == _T("AST") ) - offset = AST - GMT0; - else if ( tz == _T("ADT") ) - offset = ADT - GMT0; - else if ( tz == _T("EST") ) - offset = EST - GMT0; - else if ( tz == _T("EDT") ) - offset = EDT - GMT0; - else if ( tz == _T("CST") ) - offset = CST - GMT0; - else if ( tz == _T("CDT") ) - offset = CDT - GMT0; - else if ( tz == _T("MST") ) - offset = MST - GMT0; - else if ( tz == _T("MDT") ) - offset = MDT - GMT0; - else if ( tz == _T("PST") ) - offset = PST - GMT0; - else if ( tz == _T("PDT") ) - offset = PDT - GMT0; - else - { - wxLogDebug(_T("Unknown RFC 822 timezone '%s'"), p); - - return (wxChar *)NULL; - } - - p += tz.length(); - } - - // make it minutes - offset *= MIN_PER_HOUR; - } - - // the spec was correct, construct the date from the values we found - Set(day, mon, year, hour, min, sec); - MakeFromTimezone(TimeZone((wxDateTime_t)(offset*SEC_PER_MIN))); - - return p; -} - -#ifdef __WINDOWS__ - -// returns the string containing strftime() format used for short dates in the -// current locale or an empty string -static wxString GetLocaleDateFormat() -{ - wxString fmtWX; - - // there is no setlocale() under Windows CE, so just always query the - // system there -#ifndef __WXWINCE__ - if ( strcmp(setlocale(LC_ALL, NULL), "C") != 0 ) -#endif - { - // The locale was programatically set to non-C. We assume that this was - // done using wxLocale, in which case thread's current locale is also - // set to correct LCID value and we can use GetLocaleInfo to determine - // the correct formatting string: -#ifdef __WXWINCE__ - LCID lcid = LOCALE_USER_DEFAULT; -#else - LCID lcid = GetThreadLocale(); -#endif - // according to MSDN 80 chars is max allowed for short date format - wxChar fmt[81]; - if ( ::GetLocaleInfo(lcid, LOCALE_SSHORTDATE, fmt, WXSIZEOF(fmt)) ) - { - wxChar chLast = _T('\0'); - size_t lastCount = 0; - for ( const wxChar *p = fmt; /* NUL handled inside */; p++ ) - { - if ( *p == chLast ) - { - lastCount++; - continue; - } - - switch ( *p ) - { - // these characters come in groups, start counting them - case _T('d'): - case _T('M'): - case _T('y'): - case _T('g'): - chLast = *p; - lastCount = 1; - break; - - default: - // first deal with any special characters we have had - if ( lastCount ) - { - switch ( chLast ) - { - case _T('d'): - switch ( lastCount ) - { - case 1: // d - case 2: // dd - // these two are the same as we - // don't distinguish between 1 and - // 2 digits for days - fmtWX += _T("%d"); - break; - - case 3: // ddd - fmtWX += _T("%a"); - break; - - case 4: // dddd - fmtWX += _T("%A"); - break; - - default: - wxFAIL_MSG( _T("too many 'd's") ); - } - break; - - case _T('M'): - switch ( lastCount ) - { - case 1: // M - case 2: // MM - // as for 'd' and 'dd' above - fmtWX += _T("%m"); - break; - - case 3: - fmtWX += _T("%b"); - break; - - case 4: - fmtWX += _T("%B"); - break; - - default: - wxFAIL_MSG( _T("too many 'M's") ); - } - break; - - case _T('y'): - switch ( lastCount ) - { - case 1: // y - case 2: // yy - fmtWX += _T("%y"); - break; - - case 4: // yyyy - fmtWX += _T("%Y"); - break; - - default: - wxFAIL_MSG( _T("wrong number of 'y's") ); - } - break; - - case _T('g'): - // strftime() doesn't have era string, - // ignore this format - wxASSERT_MSG( lastCount <= 2, - _T("too many 'g's") ); - break; - - default: - wxFAIL_MSG( _T("unreachable") ); - } - - chLast = _T('\0'); - lastCount = 0; - } - - // not a special character so must be just a separator, - // treat as is - if ( *p != _T('\0') ) - { - if ( *p == _T('%') ) - { - // this one needs to be escaped - fmtWX += _T('%'); - } - - fmtWX += *p; - } - } - - if ( *p == _T('\0') ) - break; - } - } - //else: GetLocaleInfo() failed, leave fmtDate value unchanged and - // try our luck with the default formats - } - //else: default C locale, default formats should work - - return fmtWX; -} - -#endif // __WINDOWS__ - -const wxChar *wxDateTime::ParseFormat(const wxChar *date, - const wxChar *format, - const wxDateTime& dateDef) -{ - wxCHECK_MSG( date && format, (wxChar *)NULL, - _T("NULL pointer in wxDateTime::ParseFormat()") ); - - wxString str; - unsigned long num; - - // what fields have we found? - bool haveWDay = false, - haveYDay = false, - haveDay = false, - haveMon = false, - haveYear = false, - haveHour = false, - haveMin = false, - haveSec = false; - - bool hourIsIn12hFormat = false, // or in 24h one? - isPM = false; // AM by default - - // and the value of the items we have (init them to get rid of warnings) - wxDateTime_t sec = 0, - min = 0, - hour = 0; - WeekDay wday = Inv_WeekDay; - wxDateTime_t yday = 0, - mday = 0; - wxDateTime::Month mon = Inv_Month; - int year = 0; - - const wxChar *input = date; - for ( const wxChar *fmt = format; *fmt; fmt++ ) - { - if ( *fmt != _T('%') ) - { - if ( wxIsspace(*fmt) ) - { - // a white space in the format string matches 0 or more white - // spaces in the input - while ( wxIsspace(*input) ) - { - input++; - } - } - else // !space - { - // any other character (not whitespace, not '%') must be - // matched by itself in the input - if ( *input++ != *fmt ) - { - // no match - return (wxChar *)NULL; - } - } - - // done with this format char - continue; - } - - // start of a format specification - - // parse the optional width - size_t width = 0; - while ( wxIsdigit(*++fmt) ) - { - width *= 10; - width += *fmt - _T('0'); - } - - // the default widths for the various fields - if ( !width ) - { - switch ( *fmt ) - { - case _T('Y'): // year has 4 digits - width = 4; - break; - - case _T('j'): // day of year has 3 digits - case _T('l'): // milliseconds have 3 digits - width = 3; - break; - - case _T('w'): // week day as number has only one - width = 1; - break; - - default: - // default for all other fields - width = 2; - } - } - - // then the format itself - switch ( *fmt ) - { - case _T('a'): // a weekday name - case _T('A'): - { - int flag = *fmt == _T('a') ? Name_Abbr : Name_Full; - wday = GetWeekDayFromName(GetAlphaToken(input), flag); - if ( wday == Inv_WeekDay ) - { - // no match - return (wxChar *)NULL; - } - } - haveWDay = true; - break; - - case _T('b'): // a month name - case _T('B'): - { - int flag = *fmt == _T('b') ? Name_Abbr : Name_Full; - mon = GetMonthFromName(GetAlphaToken(input), flag); - if ( mon == Inv_Month ) - { - // no match - return (wxChar *)NULL; - } - } - haveMon = true; - break; - - case _T('c'): // locale default date and time representation - { - wxDateTime dt; - - // this is the format which corresponds to ctime() output - // and strptime("%c") should parse it, so try it first - static const wxChar *fmtCtime = _T("%a %b %d %H:%M:%S %Y"); - - const wxChar *result = dt.ParseFormat(input, fmtCtime); - if ( !result ) - { - result = dt.ParseFormat(input, _T("%x %X")); - } - - if ( !result ) - { - result = dt.ParseFormat(input, _T("%X %x")); - } - - if ( !result ) - { - // we've tried everything and still no match - return (wxChar *)NULL; - } - - Tm tm = dt.GetTm(); - - haveDay = haveMon = haveYear = - haveHour = haveMin = haveSec = true; - - hour = tm.hour; - min = tm.min; - sec = tm.sec; - - year = tm.year; - mon = tm.mon; - mday = tm.mday; - - input = result; - } - break; - - case _T('d'): // day of a month (01-31) - if ( !GetNumericToken(width, input, &num) || - (num > 31) || (num < 1) ) - { - // no match - return (wxChar *)NULL; - } - - // we can't check whether the day range is correct yet, will - // do it later - assume ok for now - haveDay = true; - mday = (wxDateTime_t)num; - break; - - case _T('H'): // hour in 24h format (00-23) - if ( !GetNumericToken(width, input, &num) || (num > 23) ) - { - // no match - return (wxChar *)NULL; - } - - haveHour = true; - hour = (wxDateTime_t)num; - break; - - case _T('I'): // hour in 12h format (01-12) - if ( !GetNumericToken(width, input, &num) || !num || (num > 12) ) - { - // no match - return (wxChar *)NULL; - } - - haveHour = true; - hourIsIn12hFormat = true; - hour = (wxDateTime_t)(num % 12); // 12 should be 0 - break; - - case _T('j'): // day of the year - if ( !GetNumericToken(width, input, &num) || !num || (num > 366) ) - { - // no match - return (wxChar *)NULL; - } - - haveYDay = true; - yday = (wxDateTime_t)num; - break; - - case _T('m'): // month as a number (01-12) - if ( !GetNumericToken(width, input, &num) || !num || (num > 12) ) - { - // no match - return (wxChar *)NULL; - } - - haveMon = true; - mon = (Month)(num - 1); - break; - - case _T('M'): // minute as a decimal number (00-59) - if ( !GetNumericToken(width, input, &num) || (num > 59) ) - { - // no match - return (wxChar *)NULL; - } - - haveMin = true; - min = (wxDateTime_t)num; - break; - - case _T('p'): // AM or PM string - { - wxString am, pm, token = GetAlphaToken(input); - - GetAmPmStrings(&am, &pm); - if (am.empty() && pm.empty()) - return (wxChar *)NULL; // no am/pm strings defined - if ( token.CmpNoCase(pm) == 0 ) - { - isPM = true; - } - else if ( token.CmpNoCase(am) != 0 ) - { - // no match - return (wxChar *)NULL; - } - } - break; - - case _T('r'): // time as %I:%M:%S %p - { - wxDateTime dt; - input = dt.ParseFormat(input, _T("%I:%M:%S %p")); - if ( !input ) - { - // no match - return (wxChar *)NULL; - } - - haveHour = haveMin = haveSec = true; - - Tm tm = dt.GetTm(); - hour = tm.hour; - min = tm.min; - sec = tm.sec; - } - break; - - case _T('R'): // time as %H:%M - { - wxDateTime dt; - input = dt.ParseFormat(input, _T("%H:%M")); - if ( !input ) - { - // no match - return (wxChar *)NULL; - } - - haveHour = haveMin = true; - - Tm tm = dt.GetTm(); - hour = tm.hour; - min = tm.min; - } - break; - - case _T('S'): // second as a decimal number (00-61) - if ( !GetNumericToken(width, input, &num) || (num > 61) ) - { - // no match - return (wxChar *)NULL; - } - - haveSec = true; - sec = (wxDateTime_t)num; - break; - - case _T('T'): // time as %H:%M:%S - { - wxDateTime dt; - input = dt.ParseFormat(input, _T("%H:%M:%S")); - if ( !input ) - { - // no match - return (wxChar *)NULL; - } - - haveHour = haveMin = haveSec = true; - - Tm tm = dt.GetTm(); - hour = tm.hour; - min = tm.min; - sec = tm.sec; - } - break; - - case _T('w'): // weekday as a number (0-6), Sunday = 0 - if ( !GetNumericToken(width, input, &num) || (wday > 6) ) - { - // no match - return (wxChar *)NULL; - } - - haveWDay = true; - wday = (WeekDay)num; - break; - - case _T('x'): // locale default date representation -#ifdef HAVE_STRPTIME - // try using strptime() -- it may fail even if the input is - // correct but the date is out of range, so we will fall back - // to our generic code anyhow - { - struct tm tm; - - const wxChar *result = CallStrptime(input, "%x", &tm); - if ( result ) - { - input = result; - - haveDay = haveMon = haveYear = true; - - year = 1900 + tm.tm_year; - mon = (Month)tm.tm_mon; - mday = tm.tm_mday; - - break; - } - } -#endif // HAVE_STRPTIME - - { - wxDateTime dt; - wxString fmtDate, - fmtDateAlt; - -#ifdef __WINDOWS__ - // The above doesn't work for all locales, try to query - // Windows for the right way of formatting the date: - fmtDate = GetLocaleDateFormat(); - if ( fmtDate.empty() ) -#endif - { - if ( IsWestEuropeanCountry(GetCountry()) || - GetCountry() == Russia ) - { - fmtDate = _T("%d/%m/%y"); - fmtDateAlt = _T("%m/%d/%y"); - } - else // assume USA - { - fmtDate = _T("%m/%d/%y"); - fmtDateAlt = _T("%d/%m/%y"); - } - } - - const wxChar *result = dt.ParseFormat(input, fmtDate); - - if ( !result && !fmtDateAlt.empty() ) - { - // ok, be nice and try another one - result = dt.ParseFormat(input, fmtDateAlt); - } - - if ( !result ) - { - // bad luck - return (wxChar *)NULL; - } - - Tm tm = dt.GetTm(); - - haveDay = haveMon = haveYear = true; - - year = tm.year; - mon = tm.mon; - mday = tm.mday; - - input = result; - } - - break; - - case _T('X'): // locale default time representation -#ifdef HAVE_STRPTIME - { - // use strptime() to do it for us (FIXME !Unicode friendly) - struct tm tm; - input = CallStrptime(input, "%X", &tm); - if ( !input ) - { - return (wxChar *)NULL; - } - - haveHour = haveMin = haveSec = true; - - hour = tm.tm_hour; - min = tm.tm_min; - sec = tm.tm_sec; - } -#else // !HAVE_STRPTIME - // TODO under Win32 we can query the LOCALE_ITIME system - // setting which says whether the default time format is - // 24 or 12 hour - { - // try to parse what follows as "%H:%M:%S" and, if this - // fails, as "%I:%M:%S %p" - this should catch the most - // common cases - wxDateTime dt; - - const wxChar *result = dt.ParseFormat(input, _T("%T")); - if ( !result ) - { - result = dt.ParseFormat(input, _T("%r")); - } - - if ( !result ) - { - // no match - return (wxChar *)NULL; - } - - haveHour = haveMin = haveSec = true; - - Tm tm = dt.GetTm(); - hour = tm.hour; - min = tm.min; - sec = tm.sec; - - input = result; - } -#endif // HAVE_STRPTIME/!HAVE_STRPTIME - break; - - case _T('y'): // year without century (00-99) - if ( !GetNumericToken(width, input, &num) || (num > 99) ) - { - // no match - return (wxChar *)NULL; - } - - haveYear = true; - - // TODO should have an option for roll over date instead of - // hard coding it here - year = (num > 30 ? 1900 : 2000) + (wxDateTime_t)num; - break; - - case _T('Y'): // year with century - if ( !GetNumericToken(width, input, &num) ) - { - // no match - return (wxChar *)NULL; - } - - haveYear = true; - year = (wxDateTime_t)num; - break; - - case _T('Z'): // timezone name - wxFAIL_MSG(_T("TODO")); - break; - - case _T('%'): // a percent sign - if ( *input++ != _T('%') ) - { - // no match - return (wxChar *)NULL; - } - break; - - case 0: // the end of string - wxFAIL_MSG(_T("unexpected format end")); - - // fall through - - default: // not a known format spec - return (wxChar *)NULL; - } - } - - // format matched, try to construct a date from what we have now - Tm tmDef; - if ( dateDef.IsValid() ) - { - // take this date as default - tmDef = dateDef.GetTm(); - } - else if ( IsValid() ) - { - // if this date is valid, don't change it - tmDef = GetTm(); - } - else - { - // no default and this date is invalid - fall back to Today() - tmDef = Today().GetTm(); - } - - Tm tm = tmDef; - - // set the date - if ( haveYear ) - { - tm.year = year; - } - - // TODO we don't check here that the values are consistent, if both year - // day and month/day were found, we just ignore the year day and we - // also always ignore the week day - if ( haveMon && haveDay ) - { - if ( mday > GetNumOfDaysInMonth(tm.year, mon) ) - { - wxLogDebug(_T("bad month day in wxDateTime::ParseFormat")); - - return (wxChar *)NULL; - } - - tm.mon = mon; - tm.mday = mday; - } - else if ( haveYDay ) - { - if ( yday > GetNumberOfDays(tm.year) ) - { - wxLogDebug(_T("bad year day in wxDateTime::ParseFormat")); - - return (wxChar *)NULL; - } - - Tm tm2 = wxDateTime(1, Jan, tm.year).SetToYearDay(yday).GetTm(); - - tm.mon = tm2.mon; - tm.mday = tm2.mday; - } - - // deal with AM/PM - if ( haveHour && hourIsIn12hFormat && isPM ) - { - // translate to 24hour format - hour += 12; - } - //else: either already in 24h format or no translation needed - - // set the time - if ( haveHour ) - { - tm.hour = hour; - } - - if ( haveMin ) - { - tm.min = min; - } - - if ( haveSec ) - { - tm.sec = sec; - } - - Set(tm); - - // finally check that the week day is consistent -- if we had it - if ( haveWDay && GetWeekDay() != wday ) - { - wxLogDebug(_T("inconsistsnet week day in wxDateTime::ParseFormat()")); - - return NULL; - } - - return input; -} - -const wxChar *wxDateTime::ParseDateTime(const wxChar *date) -{ - wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); - - // Set to current day and hour, so strings like '14:00' becomes today at - // 14, not some other random date - wxDateTime dtDate = wxDateTime::Today(); - wxDateTime dtTime = wxDateTime::Today(); - - const wxChar* pchTime; - - // Try to parse the beginning of the string as a date - const wxChar* pchDate = dtDate.ParseDate(date); - - // We got a date in the beginning, see if there is a time specified after the date - if ( pchDate ) - { - // Skip spaces, as the ParseTime() function fails on spaces - while ( wxIsspace(*pchDate) ) - pchDate++; - - pchTime = dtTime.ParseTime(pchDate); - } - else // no date in the beginning - { - // check and see if we have a time followed by a date - pchTime = dtTime.ParseTime(date); - if ( pchTime ) - { - while ( wxIsspace(*pchTime) ) - pchTime++; - - pchDate = dtDate.ParseDate(pchTime); - } - } - - // If we have a date specified, set our own data to the same date - if ( !pchDate || !pchTime ) - return NULL; - - Set(dtDate.GetDay(), dtDate.GetMonth(), dtDate.GetYear(), - dtTime.GetHour(), dtTime.GetMinute(), dtTime.GetSecond(), - dtTime.GetMillisecond()); - - // Return endpoint of scan - return pchDate > pchTime ? pchDate : pchTime; -} - -const wxChar *wxDateTime::ParseDate(const wxChar *date) -{ - // this is a simplified version of ParseDateTime() which understands only - // "today" (for wxDate compatibility) and digits only otherwise (and not - // all esoteric constructions ParseDateTime() knows about) - - wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); - - const wxChar *p = date; - while ( wxIsspace(*p) ) - p++; - - // some special cases - static struct - { - const wxChar *str; - int dayDiffFromToday; - } literalDates[] = - { - { wxTRANSLATE("today"), 0 }, - { wxTRANSLATE("yesterday"), -1 }, - { wxTRANSLATE("tomorrow"), 1 }, - }; - - for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ ) - { - const wxString dateStr = wxGetTranslation(literalDates[n].str); - size_t len = dateStr.length(); - if ( wxStrlen(p) >= len ) - { - wxString str(p, len); - if ( str.CmpNoCase(dateStr) == 0 ) - { - // nothing can follow this, so stop here - p += len; - - int dayDiffFromToday = literalDates[n].dayDiffFromToday; - *this = Today(); - if ( dayDiffFromToday ) - { - *this += wxDateSpan::Days(dayDiffFromToday); - } - - return p; - } - } - } - - // We try to guess what we have here: for each new (numeric) token, we - // determine if it can be a month, day or a year. Of course, there is an - // ambiguity as some numbers may be days as well as months, so we also - // have the ability to back track. - - // what do we have? - bool haveDay = false, // the months day? - haveWDay = false, // the day of week? - haveMon = false, // the month? - haveYear = false; // the year? - - // and the value of the items we have (init them to get rid of warnings) - WeekDay wday = Inv_WeekDay; - wxDateTime_t day = 0; - wxDateTime::Month mon = Inv_Month; - int year = 0; - - // tokenize the string - size_t nPosCur = 0; - static const wxChar *dateDelimiters = _T(".,/-\t\r\n "); - wxStringTokenizer tok(p, dateDelimiters); - while ( tok.HasMoreTokens() ) - { - wxString token = tok.GetNextToken(); - if ( !token ) - continue; - - // is it a number? - unsigned long val; - if ( token.ToULong(&val) ) - { - // guess what this number is - - bool isDay = false, - isMonth = false, - isYear = false; - - if ( !haveMon && val > 0 && val <= 12 ) - { - // assume it is month - isMonth = true; - } - else // not the month - { - if ( haveDay ) - { - // this can only be the year - isYear = true; - } - else // may be either day or year - { - // use a leap year if we don't have the year yet to allow - // dates like 2/29/1976 which would be rejected otherwise - wxDateTime_t max_days = (wxDateTime_t)( - haveMon - ? GetNumOfDaysInMonth(haveYear ? year : 1976, mon) - : 31 - ); - - // can it be day? - if ( (val == 0) || (val > (unsigned long)max_days) ) - { - // no - isYear = true; - } - else // yes, suppose it's the day - { - isDay = true; - } - } - } - - if ( isYear ) - { - if ( haveYear ) - break; - - haveYear = true; - - year = (wxDateTime_t)val; - } - else if ( isDay ) - { - if ( haveDay ) - break; - - haveDay = true; - - day = (wxDateTime_t)val; - } - else if ( isMonth ) - { - haveMon = true; - - mon = (Month)(val - 1); - } - } - else // not a number - { - // be careful not to overwrite the current mon value - Month mon2 = GetMonthFromName(token, Name_Full | Name_Abbr); - if ( mon2 != Inv_Month ) - { - // it's a month - if ( haveMon ) - { - // but we already have a month - maybe we guessed wrong? - if ( !haveDay ) - { - // no need to check in month range as always < 12, but - // the days are counted from 1 unlike the months - day = (wxDateTime_t)(mon + 1); - haveDay = true; - } - else - { - // could possible be the year (doesn't the year come - // before the month in the japanese format?) (FIXME) - break; - } - } - - mon = mon2; - - haveMon = true; - } - else // not a valid month name - { - wday = GetWeekDayFromName(token, Name_Full | Name_Abbr); - if ( wday != Inv_WeekDay ) - { - // a week day - if ( haveWDay ) - { - break; - } - - haveWDay = true; - } - else // not a valid weekday name - { - // try the ordinals - static const wxChar *ordinals[] = - { - wxTRANSLATE("first"), - wxTRANSLATE("second"), - wxTRANSLATE("third"), - wxTRANSLATE("fourth"), - wxTRANSLATE("fifth"), - wxTRANSLATE("sixth"), - wxTRANSLATE("seventh"), - wxTRANSLATE("eighth"), - wxTRANSLATE("ninth"), - wxTRANSLATE("tenth"), - wxTRANSLATE("eleventh"), - wxTRANSLATE("twelfth"), - wxTRANSLATE("thirteenth"), - wxTRANSLATE("fourteenth"), - wxTRANSLATE("fifteenth"), - wxTRANSLATE("sixteenth"), - wxTRANSLATE("seventeenth"), - wxTRANSLATE("eighteenth"), - wxTRANSLATE("nineteenth"), - wxTRANSLATE("twentieth"), - // that's enough - otherwise we'd have problems with - // composite (or not) ordinals - }; - - size_t n; - for ( n = 0; n < WXSIZEOF(ordinals); n++ ) - { - if ( token.CmpNoCase(ordinals[n]) == 0 ) - { - break; - } - } - - if ( n == WXSIZEOF(ordinals) ) - { - // stop here - something unknown - break; - } - - // it's a day - if ( haveDay ) - { - // don't try anything here (as in case of numeric day - // above) - the symbolic day spec should always - // precede the month/year - break; - } - - haveDay = true; - - day = (wxDateTime_t)(n + 1); - } - } - } - - nPosCur = tok.GetPosition(); - } - - // either no more tokens or the scan was stopped by something we couldn't - // parse - in any case, see if we can construct a date from what we have - if ( !haveDay && !haveWDay ) - { - wxLogDebug(_T("ParseDate: no day, no weekday hence no date.")); - - return NULL; - } - - if ( haveWDay && (haveMon || haveYear || haveDay) && - !(haveDay && haveMon && haveYear) ) - { - // without adjectives (which we don't support here) the week day only - // makes sense completely separately or with the full date - // specification (what would "Wed 1999" mean?) - return NULL; - } - - if ( !haveWDay && haveYear && !(haveDay && haveMon) ) - { - // may be we have month and day instead of day and year? - if ( haveDay && !haveMon ) - { - if ( day <= 12 ) - { - // exchange day and month - mon = (wxDateTime::Month)(day - 1); - - // we're in the current year then - if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) ) - { - day = (wxDateTime_t)year; - - haveMon = true; - haveYear = false; - } - //else: no, can't exchange, leave haveMon == false - } - } - - if ( !haveMon ) - { - // if we give the year, month and day must be given too - wxLogDebug(_T("ParseDate: day and month should be specified if year is.")); - - return NULL; - } - } - - if ( !haveMon ) - { - mon = GetCurrentMonth(); - } - - if ( !haveYear ) - { - year = GetCurrentYear(); - } - - if ( haveDay ) - { - // normally we check the day above but the check is optimistic in case - // we find the day before its month/year so we have to redo it now - if ( day > GetNumOfDaysInMonth(year, mon) ) - return NULL; - - Set(day, mon, year); - - if ( haveWDay ) - { - // check that it is really the same - if ( GetWeekDay() != wday ) - { - // inconsistency detected - wxLogDebug(_T("ParseDate: inconsistent day/weekday.")); - - return (wxChar *)NULL; - } - } - } - else // haveWDay - { - *this = Today(); - - SetToWeekDayInSameWeek(wday); - } - - // return the pointer to the first unparsed char - p += nPosCur; - if ( nPosCur && wxStrchr(dateDelimiters, *(p - 1)) ) - { - // if we couldn't parse the token after the delimiter, put back the - // delimiter as well - p--; - } - - return p; -} - -const wxChar *wxDateTime::ParseTime(const wxChar *time) -{ - wxCHECK_MSG( time, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") ); - - // first try some extra things - static const struct - { - const wxChar *name; - wxDateTime_t hour; - } stdTimes[] = - { - { wxTRANSLATE("noon"), 12 }, - { wxTRANSLATE("midnight"), 00 }, - // anything else? - }; - - for ( size_t n = 0; n < WXSIZEOF(stdTimes); n++ ) - { - wxString timeString = wxGetTranslation(stdTimes[n].name); - size_t len = timeString.length(); - if ( timeString.CmpNoCase(wxString(time, len)) == 0 ) - { - // casts required by DigitalMars - Set(stdTimes[n].hour, wxDateTime_t(0), wxDateTime_t(0)); - - return time + len; - } - } - - // try all time formats we may think about in the order from longest to - // shortest - - // 12hour with AM/PM? - const wxChar *result = ParseFormat(time, _T("%I:%M:%S %p")); - - if ( !result ) - { - // normally, it's the same, but why not try it? - result = ParseFormat(time, _T("%H:%M:%S")); - } - - if ( !result ) - { - // 12hour with AM/PM but without seconds? - result = ParseFormat(time, _T("%I:%M %p")); - } - - if ( !result ) - { - // without seconds? - result = ParseFormat(time, _T("%H:%M")); - } - - if ( !result ) - { - // just the hour and AM/PM? - result = ParseFormat(time, _T("%I %p")); - } - - if ( !result ) - { - // just the hour? - result = ParseFormat(time, _T("%H")); - } - - if ( !result ) - { - // parse the standard format: normally it is one of the formats above - // but it may be set to something completely different by the user - result = ParseFormat(time, _T("%X")); - } - - // TODO: parse timezones - - return result; -} - -// ---------------------------------------------------------------------------- -// Workdays and holidays support -// ---------------------------------------------------------------------------- - -bool wxDateTime::IsWorkDay(Country WXUNUSED(country)) const -{ - return !wxDateTimeHolidayAuthority::IsHoliday(*this); -} - -// ============================================================================ -// wxDateSpan -// ============================================================================ - -wxDateSpan WXDLLIMPEXP_BASE operator*(int n, const wxDateSpan& ds) -{ - wxDateSpan ds1(ds); - return ds1.Multiply(n); -} - -// ============================================================================ -// wxTimeSpan -// ============================================================================ - -wxTimeSpan WXDLLIMPEXP_BASE operator*(int n, const wxTimeSpan& ts) -{ - return wxTimeSpan(ts).Multiply(n); -} - -// this enum is only used in wxTimeSpan::Format() below but we can't declare -// it locally to the method as it provokes an internal compiler error in egcs -// 2.91.60 when building with -O2 -enum TimeSpanPart -{ - Part_Week, - Part_Day, - Part_Hour, - Part_Min, - Part_Sec, - Part_MSec -}; - -// not all strftime(3) format specifiers make sense here because, for example, -// a time span doesn't have a year nor a timezone -// -// Here are the ones which are supported (all of them are supported by strftime -// as well): -// %H hour in 24 hour format -// %M minute (00 - 59) -// %S second (00 - 59) -// %% percent sign -// -// Also, for MFC CTimeSpan compatibility, we support -// %D number of days -// -// And, to be better than MFC :-), we also have -// %E number of wEeks -// %l milliseconds (000 - 999) -wxString wxTimeSpan::Format(const wxChar *format) const -{ - wxCHECK_MSG( format, wxEmptyString, _T("NULL format in wxTimeSpan::Format") ); - - wxString str; - str.Alloc(wxStrlen(format)); - - // Suppose we have wxTimeSpan ts(1 /* hour */, 2 /* min */, 3 /* sec */) - // - // Then, of course, ts.Format("%H:%M:%S") must return "01:02:03", but the - // question is what should ts.Format("%S") do? The code here returns "3273" - // in this case (i.e. the total number of seconds, not just seconds % 60) - // because, for me, this call means "give me entire time interval in - // seconds" and not "give me the seconds part of the time interval" - // - // If we agree that it should behave like this, it is clear that the - // interpretation of each format specifier depends on the presence of the - // other format specs in the string: if there was "%H" before "%M", we - // should use GetMinutes() % 60, otherwise just GetMinutes() &c - - // we remember the most important unit found so far - TimeSpanPart partBiggest = Part_MSec; - - for ( const wxChar *pch = format; *pch; pch++ ) - { - wxChar ch = *pch; - - if ( ch == _T('%') ) - { - // the start of the format specification of the printf() below - wxString fmtPrefix(_T('%')); - - // the number - long n; - - // the number of digits for the format string, 0 if unused - unsigned digits = 0; - - ch = *++pch; // get the format spec char - switch ( ch ) - { - default: - wxFAIL_MSG( _T("invalid format character") ); - // fall through - - case _T('%'): - str += ch; - - // skip the part below switch - continue; - - case _T('D'): - n = GetDays(); - if ( partBiggest < Part_Day ) - { - n %= DAYS_PER_WEEK; - } - else - { - partBiggest = Part_Day; - } - break; - - case _T('E'): - partBiggest = Part_Week; - n = GetWeeks(); - break; - - case _T('H'): - n = GetHours(); - if ( partBiggest < Part_Hour ) - { - if ( n < 0 ) - { - // the sign has already been taken into account - // when outputting the biggest part - n = -n; - } - - n %= HOURS_PER_DAY; - } - else - { - partBiggest = Part_Hour; - } - - digits = 2; - break; - - case _T('l'): - n = GetMilliseconds().ToLong(); - if ( partBiggest < Part_MSec ) - { - if ( n < 0 ) - n = -n; - - n %= 1000; - } - //else: no need to reset partBiggest to Part_MSec, it is - // the least significant one anyhow - - digits = 3; - break; - - case _T('M'): - n = GetMinutes(); - if ( partBiggest < Part_Min ) - { - if ( n < 0 ) - n = -n; - - n %= MIN_PER_HOUR; - } - else - { - partBiggest = Part_Min; - } - - digits = 2; - break; - - case _T('S'): - n = GetSeconds().ToLong(); - if ( partBiggest < Part_Sec ) - { - if ( n < 0 ) - n = -n; - - n %= SEC_PER_MIN; - } - else - { - partBiggest = Part_Sec; - } - - digits = 2; - break; - } - - if ( digits ) - { - // negative numbers need one extra position for '-' display - if ( n < 0 ) - digits++; - - fmtPrefix << _T("0") << digits; - } - - str += wxString::Format(fmtPrefix + _T("ld"), n); - } - else - { - // normal character, just copy - str += ch; - } - } - - return str; -} - -// ============================================================================ -// wxDateTimeHolidayAuthority and related classes -// ============================================================================ - -#include "wx/arrimpl.cpp" - -WX_DEFINE_OBJARRAY(wxDateTimeArray) +WX_DEFINE_OBJARRAY(wxDateTimeArray) static int wxCMPFUNC_CONV wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second) @@ -4493,7 +2205,7 @@ size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart, { if ( dtStart > dtEnd ) { - wxFAIL_MSG( _T("invalid date range in GetHolidaysInRange") ); + wxFAIL_MSG( wxT("invalid date range in GetHolidaysInRange") ); return 0u; } @@ -4533,7 +2245,7 @@ size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart, WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m) { - wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); + wxASSERT_MSG( m < wxDateTime::Inv_Month, wxT("invalid month") ); // no wrapping or the for loop above would never end! m = (wxDateTime::Month)(m + 1); @@ -4541,7 +2253,7 @@ WXDLLIMPEXP_BASE void wxNextMonth(wxDateTime::Month& m) WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m) { - wxASSERT_MSG( m < wxDateTime::Inv_Month, _T("invalid month") ); + wxASSERT_MSG( m < wxDateTime::Inv_Month, wxT("invalid month") ); m = m == wxDateTime::Jan ? wxDateTime::Inv_Month : (wxDateTime::Month)(m - 1); @@ -4549,7 +2261,7 @@ WXDLLIMPEXP_BASE void wxPrevMonth(wxDateTime::Month& m) WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd) { - wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); + wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, wxT("invalid week day") ); // no wrapping or the for loop above would never end! wd = (wxDateTime::WeekDay)(wd + 1); @@ -4557,10 +2269,60 @@ WXDLLIMPEXP_BASE void wxNextWDay(wxDateTime::WeekDay& wd) WXDLLIMPEXP_BASE void wxPrevWDay(wxDateTime::WeekDay& wd) { - wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, _T("invalid week day") ); + wxASSERT_MSG( wd < wxDateTime::Inv_WeekDay, wxT("invalid week day") ); wd = wd == wxDateTime::Sun ? wxDateTime::Inv_WeekDay : (wxDateTime::WeekDay)(wd - 1); } +#ifdef __WINDOWS__ + +wxDateTime& wxDateTime::SetFromMSWSysTime(const SYSTEMTIME& st) +{ + return Set(st.wDay, + static_cast(wxDateTime::Jan + st.wMonth - 1), + st.wYear, + st.wHour, st.wMinute, st.wSecond, st.wMilliseconds); +} + +wxDateTime& wxDateTime::SetFromMSWSysDate(const SYSTEMTIME& st) +{ + return Set(st.wDay, + static_cast(wxDateTime::Jan + st.wMonth - 1), + st.wYear, + 0, 0, 0, 0); +} + +void wxDateTime::GetAsMSWSysTime(SYSTEMTIME* st) const +{ + const wxDateTime::Tm tm(GetTm()); + + st->wYear = (WXWORD)tm.year; + st->wMonth = (WXWORD)(tm.mon - wxDateTime::Jan + 1); + st->wDay = tm.mday; + + st->wDayOfWeek = 0; + st->wHour = tm.hour; + st->wMinute = tm.min; + st->wSecond = tm.sec; + st->wMilliseconds = tm.msec; +} + +void wxDateTime::GetAsMSWSysDate(SYSTEMTIME* st) const +{ + const wxDateTime::Tm tm(GetTm()); + + st->wYear = (WXWORD)tm.year; + st->wMonth = (WXWORD)(tm.mon - wxDateTime::Jan + 1); + st->wDay = tm.mday; + + st->wDayOfWeek = + st->wHour = + st->wMinute = + st->wSecond = + st->wMilliseconds = 0; +} + +#endif // __WINDOWS__ + #endif // wxUSE_DATETIME