+
+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++ )
+ {
+ wxString date = wxGetTranslation(literalDates[n].str);
+ size_t len = date.length();
+ if ( wxStrlen(p) >= len && (wxString(p, len).CmpNoCase(date) == 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
+ {
+ wxDateTime_t maxDays = haveMon
+ ? GetNumOfDaysInMonth(haveYear ? year : Inv_Year, mon)
+ : 31;
+
+ // can it be day?
+ if ( (val == 0) || (val > (unsigned long)maxDays) ) // cast to shut up compiler warning in BCC
+ {
+ isYear = TRUE;
+ }
+ else
+ {
+ 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 (wxChar *)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 (wxChar *)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) &&
+ (unsigned)year <= GetNumOfDaysInMonth(Inv_Year, mon) )
+ {
+ day = 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 (wxChar *)NULL;
+ }
+ }
+
+ if ( !haveMon )
+ {
+ mon = GetCurrentMonth();
+ }
+
+ if ( !haveYear )
+ {
+ year = GetCurrentYear();
+ }
+
+ if ( haveDay )
+ {
+ 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);
+}
+
+// ============================================================================
+// wxTimeSpan
+// ============================================================================
+
+// 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, _T(""), _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;
+
+ 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 )
+ {
+ n %= HOURS_PER_DAY;
+ }
+ else
+ {
+ partBiggest = Part_Hour;
+ }
+
+ fmtPrefix += _T("02");
+ break;
+
+ case _T('l'):
+ n = GetMilliseconds().ToLong();
+ if ( partBiggest < Part_MSec )
+ {
+ n %= 1000;
+ }
+ //else: no need to reset partBiggest to Part_MSec, it is
+ // the least significant one anyhow
+
+ fmtPrefix += _T("03");
+ break;
+
+ case _T('M'):
+ n = GetMinutes();
+ if ( partBiggest < Part_Min )
+ {
+ n %= MIN_PER_HOUR;
+ }
+ else
+ {
+ partBiggest = Part_Min;
+ }
+
+ fmtPrefix += _T("02");
+ break;
+
+ case _T('S'):
+ n = GetSeconds().ToLong();
+ if ( partBiggest < Part_Sec )
+ {
+ n %= SEC_PER_MIN;
+ }
+ else
+ {
+ partBiggest = Part_Sec;
+ }
+
+ fmtPrefix += _T("02");
+ break;
+ }
+
+ 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);
+
+static int wxCMPFUNC_CONV
+wxDateTimeCompareFunc(wxDateTime **first, wxDateTime **second)
+{
+ wxDateTime dt1 = **first,
+ dt2 = **second;
+
+ return dt1 == dt2 ? 0 : dt1 < dt2 ? -1 : +1;
+}
+
+// ----------------------------------------------------------------------------
+// wxDateTimeHolidayAuthority
+// ----------------------------------------------------------------------------
+
+wxHolidayAuthoritiesArray wxDateTimeHolidayAuthority::ms_authorities;
+
+/* static */
+bool wxDateTimeHolidayAuthority::IsHoliday(const wxDateTime& dt)
+{
+ size_t count = ms_authorities.GetCount();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ if ( ms_authorities[n]->DoIsHoliday(dt) )
+ {
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+/* static */
+size_t
+wxDateTimeHolidayAuthority::GetHolidaysInRange(const wxDateTime& dtStart,
+ const wxDateTime& dtEnd,
+ wxDateTimeArray& holidays)
+{
+ wxDateTimeArray hol;
+
+ holidays.Empty();
+
+ size_t count = ms_authorities.GetCount();
+ for ( size_t nAuth = 0; nAuth < count; nAuth++ )
+ {
+ ms_authorities[nAuth]->DoGetHolidaysInRange(dtStart, dtEnd, hol);
+
+ WX_APPEND_ARRAY(holidays, hol);
+ }
+
+ holidays.Sort(wxDateTimeCompareFunc);
+
+ return holidays.GetCount();
+}
+
+/* static */
+void wxDateTimeHolidayAuthority::ClearAllAuthorities()
+{
+ WX_CLEAR_ARRAY(ms_authorities);
+}
+
+/* static */
+void wxDateTimeHolidayAuthority::AddAuthority(wxDateTimeHolidayAuthority *auth)
+{
+ ms_authorities.Add(auth);
+}
+
+wxDateTimeHolidayAuthority::~wxDateTimeHolidayAuthority()
+{
+ // nothing to do here
+}
+
+// ----------------------------------------------------------------------------
+// wxDateTimeWorkDays
+// ----------------------------------------------------------------------------
+
+bool wxDateTimeWorkDays::DoIsHoliday(const wxDateTime& dt) const
+{
+ wxDateTime::WeekDay wd = dt.GetWeekDay();
+
+ return (wd == wxDateTime::Sun) || (wd == wxDateTime::Sat);
+}
+
+size_t wxDateTimeWorkDays::DoGetHolidaysInRange(const wxDateTime& dtStart,
+ const wxDateTime& dtEnd,
+ wxDateTimeArray& holidays) const
+{
+ if ( dtStart > dtEnd )
+ {
+ wxFAIL_MSG( _T("invalid date range in GetHolidaysInRange") );
+
+ return 0u;
+ }
+
+ holidays.Empty();
+
+ // instead of checking all days, start with the first Sat after dtStart and
+ // end with the last Sun before dtEnd
+ wxDateTime dtSatFirst = dtStart.GetNextWeekDay(wxDateTime::Sat),
+ dtSatLast = dtEnd.GetPrevWeekDay(wxDateTime::Sat),
+ dtSunFirst = dtStart.GetNextWeekDay(wxDateTime::Sun),
+ dtSunLast = dtEnd.GetPrevWeekDay(wxDateTime::Sun),
+ dt;
+
+ for ( dt = dtSatFirst; dt <= dtSatLast; dt += wxDateSpan::Week() )
+ {
+ holidays.Add(dt);
+ }
+
+ for ( dt = dtSunFirst; dt <= dtSunLast; dt += wxDateSpan::Week() )
+ {
+ holidays.Add(dt);
+ }
+
+ return holidays.GetCount();
+}
+
+#endif // wxUSE_DATETIME
projects / wxWidgets.git / blobdiff