#include "wx/thread.h"
#include "wx/tokenzr.h"
-#define wxDEFINE_TIME_CONSTANTS
+#define wxDEFINE_TIME_CONSTANTS // before including datetime.h
#include "wx/datetime.h"
-#ifndef WX_TIMEZONE
- #define WX_TIMEZONE timezone
-#endif
+// ----------------------------------------------------------------------------
+// conditional compilation
+// ----------------------------------------------------------------------------
-// Is this right? Just a guess. (JACS)
-#ifdef __MINGW32__
-#define timezone _timezone
-#endif
+#if defined(HAVE_STRPTIME) && defined(__LINUX__)
+ // 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()
+
+#ifndef WX_TIMEZONE
+ #if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
+ #define WX_TIMEZONE _timezone
+ #else // unknown platform - try timezone
+ #define WX_TIMEZONE timezone
+ #endif
+#endif // !WX_TIMEZONE
// ----------------------------------------------------------------------------
// constants
static const long DAYS_PER_4_YEARS = 1461l;
static const long DAYS_PER_400_YEARS = 146097l;
+// this array contains the cumulated number of days in all previous months for
+// normal and leap years
+static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] =
+{
+ { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 },
+ { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 }
+};
+
// ----------------------------------------------------------------------------
// globals
// ----------------------------------------------------------------------------
wxCriticalSection gs_critsectTimezone;
#endif // wxUSE_THREADS
-// the symbolic names for date spans
-wxDateSpan wxYear = wxDateSpan(1, 0, 0, 0);
-wxDateSpan wxMonth = wxDateSpan(0, 1, 0, 0);
-wxDateSpan wxWeek = wxDateSpan(0, 0, 1, 0);
-wxDateSpan wxDay = wxDateSpan(0, 0, 0, 1);
-
// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------
}
}
+// fll the struct tm with default values
+static void InitTm(struct tm& tm)
+{
+ // struct tm may have etxra fields (undocumented and with unportable
+ // names) which, nevertheless, must be set to 0
+ memset(&tm, 0, sizeof(struct tm));
+
+ tm.tm_mday = 1; // mday 0 is invalid
+ tm.tm_year = 76; // any valid year
+ 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)
+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 with both abbreviated and not versions
- if ( name.CmpNoCase(wxDateTime::GetMonthName(mon, TRUE)) ||
- name.CmpNoCase(wxDateTime::GetMonthName(mon, FALSE)) )
+ // case-insensitive comparison either one of or with both abbreviated
+ // and not versions
+ if ( flags & wxDateTime::Name_Full )
{
- break;
+ 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 the weekday if the string is a weekday name or Inv_WeekDay otherwise
-static wxDateTime::WeekDay GetWeekDayFromName(const wxString& name)
+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 with both abbreviated and not versions
- if ( name.IsSameAs(wxDateTime::GetWeekDayName(wd, TRUE), FALSE) ||
- name.IsSameAs(wxDateTime::GetWeekDayName(wd, FALSE), FALSE) )
+ // case-insensitive comparison either one of or with both abbreviated
+ // and not versions
+ if ( flags & wxDateTime::Name_Full )
{
- break;
+ 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;
}
+// scans all digits and returns the resulting number
+static bool GetNumericToken(const wxChar*& p, unsigned long *number)
+{
+ wxString s;
+ while ( wxIsdigit(*p) )
+ {
+ s += *p++;
+ }
+
+ return !!s && 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
// ============================================================================
{
case Gregorian:
return Now().GetMonth();
- break;
case Julian:
wxFAIL_MSG(_T("TODO"));
case Gregorian:
case Julian:
return IsLeapYear(year) ? 366 : 365;
- break;
default:
wxFAIL_MSG(_T("unsupported calendar"));
}
/* static */
-wxString wxDateTime::GetMonthName(wxDateTime::Month month, bool abbr)
+wxString wxDateTime::GetMonthName(wxDateTime::Month month,
+ wxDateTime::NameFlags flags)
{
wxCHECK_MSG( month != Inv_Month, _T(""), _T("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;
- tm.tm_hour =
- tm.tm_min =
- tm.tm_sec =
- tm.tm_wday =
- tm.tm_yday = 0;
- tm.tm_mday = 1;
+ InitTm(tm);
tm.tm_mon = month;
- tm.tm_year = 76; // any year will do
- tm.tm_isdst = -1;
- return CallStrftime(abbr ? _T("%b") : _T("%B"), &tm);
+ return CallStrftime(flags == Name_Abbr ? _T("%b") : _T("%B"), &tm);
}
/* static */
-wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday, bool abbr)
+wxString wxDateTime::GetWeekDayName(wxDateTime::WeekDay wday,
+ wxDateTime::NameFlags flags)
{
wxCHECK_MSG( wday != Inv_WeekDay, _T(""), _T("invalid weekday") );
// take some arbitrary Sunday
- tm tm = { 0, 0, 0, 28, Nov, 99 };
+ tm tm;
+ InitTm(tm);
+ tm.tm_mday = 28;
+ tm.tm_mon = Nov;
+ tm.tm_year = 99;
// and offset it by the number of days needed to get the correct wday
tm.tm_mday += wday;
(void)mktime(&tm);
// ... and call strftime()
- return CallStrftime(abbr ? _T("%a") : _T("%A"), &tm);
+ return CallStrftime(flags == Name_Abbr ? _T("%a") : _T("%A"), &tm);
+}
+
+/* static */
+void wxDateTime::GetAmPmStrings(wxString *am, wxString *pm)
+{
+ tm tm;
+ InitTm(tm);
+ if ( am )
+ {
+ *am = CallStrftime(_T("%p"), &tm);
+ }
+ if ( pm )
+ {
+ tm.tm_hour = 13;
+ *pm = CallStrftime(_T("%p"), &tm);
+ }
}
// ----------------------------------------------------------------------------
/* static */
wxDateTime::Country wxDateTime::GetCountry()
{
+ // TODO use LOCALE_ICOUNTRY setting under Win32
+
if ( ms_country == Country_Unknown )
{
// try to guess from the time zone name
dt += wxTimeSpan::Hours(1);
- dt.MakeGMT();
+ // disable DST tests because it could result in an infinite recursion!
+ dt.MakeGMT(TRUE);
}
else switch ( country )
{
if ( IsWestEuropeanCountry(country) || (country == Russia) )
{
- // DST ends at 1 a.m. GMT on the last Sunday of October
+ // DST ends at 1 a.m. GMT on the last Sunday of October
if ( !dt.SetToLastWeekDay(Sun, Oct, year) )
{
// weirder and weirder...
dt += wxTimeSpan::Hours(1);
- dt.MakeGMT();
+ // disable DST tests because it could result in an infinite recursion!
+ dt.MakeGMT(TRUE);
}
else switch ( country )
{
break;
default:
- // DST ends at 2 a.m. on the last Sunday of October
+ // DST ends at 2 a.m. on the last Sunday of October
if ( !dt.SetToLastWeekDay(Sun, Oct, year) )
{
// weirder and weirder...
jdn *= MILLISECONDS_PER_DAY;
- m_time = jdn;
+ m_time.Assign(jdn);
return *this;
}
wxDateTime::Tm wxDateTime::GetTm(const TimeZone& tz) const
{
+#ifdef __VMS__
+ int time2;
+#endif
wxASSERT_MSG( IsValid(), _T("invalid wxDateTime") );
time_t time = GetTicks();
else
{
time += tz.GetOffset();
- if ( time >= 0 )
+#ifdef __VMS__ /* time is unsigned so VMS gives a warning on the original */
+ time2 = (int) time;
+ if ( time2 >= 0 )
+#else
+ if ( time >= 0 )
+#endif
{
tm = gmtime(&time);
wxDateTime::wxDateTime_t wxDateTime::GetDayOfYear(const TimeZone& tz) const
{
- // this array contains the cumulated number of days in all previous months
- // for normal and leap years
- static const wxDateTime_t cumulatedDays[2][MONTHS_IN_YEAR] =
- {
- { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 },
- { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 }
- };
-
Tm tm(GetTm(tz));
- return cumulatedDays[IsLeapYear(tm.year)][tm.mon] + tm.mday;
+ return gs_cumulatedDays[IsLeapYear(tm.year)][tm.mon] + tm.mday;
}
wxDateTime::wxDateTime_t wxDateTime::GetWeekOfYear(const TimeZone& tz) const
{
-#if 0
+#if 1
// the first week of the year is the one which contains Jan, 4 (according
// to ISO standard rule), so the year day N0 = 4 + 7*W always lies in the
// week W+1. As any day N = 7*W + 4 + (N - 4)%7, it lies in the same week
}
return week;
-#else // this seems to be a bit simpler and I believe is also correct
- return (WeekDay)((GetDayOfYear() - (GetWeekDay() - 1 + 7) % 7 + 7) / 7);
+#else // 0
+ // an attempt at doing it simpler - but this doesn't quite work...
+ return (WeekDay)((GetDayOfYear(tz) - (GetWeekDay(tz) - 1 + 7) % 7 + 7) / 7);
#endif // 0/1
}
return nWeek;
}
+wxDateTime& wxDateTime::SetToYearDay(wxDateTime::wxDateTime_t yday)
+{
+ int year = GetYear();
+ wxCHECK_MSG( (0 < yday) && (yday <= GetNumberOfDays(year)),
+ ms_InvDateTime, _T("invalid year day") );
+
+ bool isLeap = IsLeapYear(year);
+ for ( Month mon = Jan; mon < Inv_Month; wxNextMonth(mon) )
+ {
+ // for Dec, we can't compare with gs_cumulatedDays[mon + 1], but we
+ // don't need it neither - because of the CHECK above we know that
+ // yday lies in December then
+ if ( (mon == Dec) || (yday < gs_cumulatedDays[isLeap][mon + 1]) )
+ {
+ Set(yday - gs_cumulatedDays[isLeap][mon], mon, year);
+
+ break;
+ }
+ }
+
+ return *this;
+}
+
// ----------------------------------------------------------------------------
// Julian day number conversion and related stuff
// ----------------------------------------------------------------------------
}
}
-wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz)
+wxDateTime& wxDateTime::MakeTimezone(const TimeZone& tz, bool noDST)
{
int secDiff = GetTimeZone() + tz.GetOffset();
- // we need to know whether DST is or not in effect for this date
- if ( IsDST() == 1 )
+ // we need to know whether DST is or not in effect for this date unless
+ // the test disabled by the caller
+ if ( !noDST && (IsDST() == 1) )
{
// FIXME we assume that the DST is always shifted by 1 hour
secDiff -= 3600;
wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
{
+#ifdef __VMS__
+ int time2;
+#endif
wxCHECK_MSG( format, _T(""), _T("NULL format in wxDateTime::Format") );
time_t time = GetTicks();
{
time += tz.GetOffset();
+#ifdef __VMS__ /* time is unsigned so VMS gives a warning on the original */
+ time2 = (int) time;
+ if ( time2 >= 0 )
+#else
if ( time >= 0 )
+#endif
{
tm = gmtime(&time);
case _T('a'): // a weekday name
case _T('A'):
// second parameter should be TRUE for abbreviated names
- res += GetWeekDayName(tm.GetWeekDay(), *p == _T('a'));
+ res += GetWeekDayName(tm.GetWeekDay(),
+ *p == _T('a') ? Name_Abbr : Name_Full);
break;
case _T('b'): // a month name
case _T('B'):
- // second parameter should be TRUE for abbreviated names
- res += GetMonthName(tm.mon, *p == _T('b'));
+ res += GetMonthName(tm.mon,
+ *p == _T('b') ? Name_Abbr : Name_Full);
break;
case _T('c'): // locale default date and time representation
// 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;
res += *p;
break;
- case 0:
+ 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
// the spec was correct
Set(day, mon, year, hour, min, sec);
- MakeTimezone(60*offset);
+ MakeTimezone((wxDateTime_t)(60*offset));
return p;
}
-const wxChar *wxDateTime::ParseFormat(const wxChar *date, const wxChar *format)
+const wxChar *wxDateTime::ParseFormat(const wxChar *date,
+ const wxChar *format,
+ const wxDateTime& dateDef)
{
wxCHECK_MSG( date && format, (wxChar *)NULL,
- _T("NULL pointer in wxDateTime::Parse") );
+ _T("NULL pointer in wxDateTime::ParseFormat()") );
- // there is a public domain version of getdate.y, but it only works for
- // English...
- wxFAIL_MSG(_T("TODO"));
+ wxString str;
+ unsigned long num;
- return (wxChar *)NULL;
+ // 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 = 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 + 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") );
- // find a public domain version of strptime() somewhere?
+ // there is a public domain version of getdate.y, but it only works for
+ // English...
wxFAIL_MSG(_T("TODO"));
return (wxChar *)NULL;
}
else // not a number
{
- mon = GetMonthFromName(token);
+ mon = GetMonthFromName(token, Name_Full | Name_Abbr);
if ( mon != Inv_Month )
{
// it's a month
}
else
{
- wday = GetWeekDayFromName(token);
+ wday = GetWeekDayFromName(token, Name_Full | Name_Abbr);
if ( wday != Inv_WeekDay )
{
// a week day
{
wxCHECK_MSG( time, (wxChar *)NULL, _T("NULL pointer in wxDateTime::Parse") );
- // this function should be able to parse different time formats as well as
- // timezones (take the code out from ParseRfc822Date()) and AM/PM.
- wxFAIL_MSG(_T("TODO"));
+ // first try some extra things
+ static const struct
+ {
+ const wxChar *name;
+ wxDateTime_t hour;
+ } stdTimes[] =
+ {
+ { wxTRANSLATE("noon"), 12 },
+ { wxTRANSLATE("midnight"), 00 },
+ // anything else?
+ };
- return (wxChar *)NULL;
+ 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 )
+ {
+ Set(stdTimes[n].hour, 0, 0);
+
+ return time + len;
+ }
+ }
+
+ // try all time formats we may think about starting with the standard one
+ const wxChar *result = ParseFormat(time, _T("%X"));
+ 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?
+ result = ParseFormat(time, _T("%I:%M:%S %p"));
+ }
+
+ if ( !result )
+ {
+ // without seconds?
+ result = ParseFormat(time, _T("%H:%M"));
+ }
+
+ if ( !result )
+ {
+ // 12hour with AM/PM but without seconds?
+ result = ParseFormat(time, _T("%I:%M %p"));
+ }
+
+ if ( !result )
+ {
+ // just the hour?
+ result = ParseFormat(time, _T("%H"));
+ }
+
+ if ( !result )
+ {
+ // just the hour and AM/PM?
+ result = ParseFormat(time, _T("%I %p"));
+ }
+
+ // TODO: parse timezones
+
+ return result;
}
// ============================================================================
projects / wxWidgets.git / blobdiff