- 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 *= 60;
- }
-
- // the spec was correct
- Set(day, mon, year, hour, min, sec);
- MakeTimezone((wxDateTime_t)(60*offset));
-
- return p;
-}
-
-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
- 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(input, &num) || (num > 31) )
- {
- // 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(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(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(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(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(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 ( 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;
- }
-
- case _T('S'): // second as a decimal number (00-61)
- if ( !GetNumericToken(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(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 (FIXME !Unicode friendly)
- {
- struct tm tm;
- const wxChar *result = strptime(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
-
- // TODO query the LOCALE_IDATE setting under Win32
- {
- wxDateTime dt;
-
- wxString fmtDate, fmtDateAlt;
- 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 )
- {
- // 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 = strptime(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(input, &num) || (num > 99) )
- {
- // no match
- return (wxChar *)NULL;
- }
-
- haveYear = TRUE;
- year = 1900 + (wxDateTime_t)num;
- break;
-
- case _T('Y'): // year with century
- if ( !GetNumericToken(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 ( m_time != 0 )
- {
- // 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);
-
- return input;
-}
-
-const wxChar *wxDateTime::ParseDateTime(const wxChar *date)
-{
- wxCHECK_MSG( date, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
-
- // there is a public domain version of getdate.y, but it only works for
- // English...
- wxFAIL_MSG(_T("TODO"));
-
- return (wxChar *)NULL;
-}
-
-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 ( 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;
- }
- }
-
- // 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
- wxStringTokenizer tok(p, _T(",/-\t\n "));
- while ( tok.HasMoreTokens() )
- {
- wxString token = tok.GetNextToken();
-
- // is it a number?
- unsigned long val;
- if ( token.ToULong(&val) )
- {
- // guess what this number is
-
- bool isDay = FALSE,
- isMonth = FALSE,
- // only years are counted from 0
- isYear = (val == 0) || (val > 31);
- if ( !isYear )
- {
- // may be the month or month day or the year, assume the
- // month day by default and fallback to month if the range
- // allow it or to the year if our assumption doesn't work
- if ( haveDay )
- {
- // we already have the day, so may only be a month or year
- if ( val > 12 )
- {
- isYear = TRUE;
- }
- else
- {
- isMonth = TRUE;
- }
- }
- else // it may be day
- {
- isDay = TRUE;
-
- // check the range
- if ( haveMon )
- {
- if ( val > GetNumOfDaysInMonth(haveYear ? year
- : Inv_Year,
- mon) )
- {
- // oops, it can't be a day finally
- isDay = FALSE;
-
- if ( val > 12 )
- {
- isYear = TRUE;
- }
- else
- {
- isMonth = TRUE;
- }
- }
- }
- }
- }
-
- // remember that we have this and stop the scan if it's the second
- // time we find this, except for the day logic (see there)
- if ( isYear )
- {
- if ( haveYear )
- {
- break;
- }
-
- haveYear = TRUE;
-
- // no roll over - 99 means 99, not 1999 for us
- year = (wxDateTime_t)val;
- }
- else if ( isMonth )
- {
- if ( haveMon )
- {
- break;
- }
-
- haveMon = TRUE;
-
- mon = (wxDateTime::Month)val;
- }
- else
- {
- wxASSERT_MSG( isDay, _T("logic error") );
-
- if ( haveDay )
- {
- // may be were mistaken when we found it for the first
- // time? may be it was a month or year instead?
- //
- // this ability to "backtrack" allows us to correctly parse
- // both things like 01/13 and 13/01 - but, of course, we
- // still can't resolve the ambiguity in 01/02 (it will be
- // Feb 1 for us, not Jan 2 as americans might expect!)
- if ( (day <= 12) && !haveMon )
- {
- // exchange day and month
- mon = (wxDateTime::Month)day;
-
- haveMon = TRUE;
- }
- else if ( !haveYear )
- {
- // exchange day and year
- year = day;
-
- haveYear = TRUE;
- }
- }
-
- haveDay = TRUE;
-
- day = (wxDateTime_t)val;
- }
- }
- else // not a number
- {
- mon = GetMonthFromName(token, Name_Full | Name_Abbr);
- if ( mon != Inv_Month )
- {
- // it's a month
- if ( haveMon )
- {
- break;
- }
-
- haveMon = TRUE;
- }
- else
- {
- wday = GetWeekDayFromName(token, Name_Full | Name_Abbr);
- if ( wday != Inv_WeekDay )
- {
- // a week day
- if ( haveWDay )
- {
- break;
- }
-
- haveWDay = TRUE;
- }
- else
- {
- // 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 otherwise
- };
-
- 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;
- }
projects / wxWidgets.git / blobdiff