fmt = _T("%02d");
}
-restart:
- // start of the format specification
- switch ( *p )
+ bool restart = TRUE;
+ while ( restart )
{
- 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;
+ restart = FALSE;
- case _T('b'): // a month name
- case _T('B'):
- res += GetMonthName(tm.mon,
- *p == _T('b') ? Name_Abbr : Name_Full);
- break;
+ // 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('c'): // locale default date and time representation
- case _T('x'): // locale default date representation
- //
- // 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 occurences 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 occurences of YEAR"
- // means all occurences 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
+ 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
+ //
+ // 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 occurences 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 occurences of YEAR"
+ // means all occurences 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!
{
- year = 1970 + mod28 - 10; // 1970 == 10 (mod 28)
- }
+ // 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;
+ 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);
+ // 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;
- }
+ // 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;
+ }
- // at any rate, we couldn't go further than 1988 + 9 + 28!
- wxASSERT_MSG( year < 2030,
- _T("logic error in wxDateTime::Format") );
+ // 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);
+ wxString strYear, strYear2;
+ strYear.Printf(_T("%d"), year);
+ strYear2.Printf(_T("%d"), year % 100);
- // find two strings not occuring in format (this is surely
- // not optimal way of doing it... improvements welcome!)
- wxString fmt = format;
- wxString replacement = (wxChar)-1;
- while ( fmt.Find(replacement) != wxNOT_FOUND )
- {
- replacement << (wxChar)-1;
- }
+ // find two strings not occuring in format (this is surely
+ // not optimal way of doing it... improvements welcome!)
+ wxString fmt = format;
+ wxString replacement = (wxChar)-1;
+ while ( fmt.Find(replacement) != wxNOT_FOUND )
+ {
+ replacement << (wxChar)-1;
+ }
- wxString replacement2 = (wxChar)-2;
- while ( fmt.Find(replacement) != wxNOT_FOUND )
- {
- replacement << (wxChar)-2;
- }
+ wxString replacement2 = (wxChar)-2;
+ while ( fmt.Find(replacement) != wxNOT_FOUND )
+ {
+ replacement << (wxChar)-2;
+ }
- // replace all occurences of year with it
- bool wasReplaced = fmt.Replace(strYear, replacement) > 0;
- if ( !wasReplaced )
- wasReplaced = fmt.Replace(strYear2, replacement2) > 0;
+ // replace all occurences of year with it
+ bool wasReplaced = fmt.Replace(strYear, replacement) > 0;
+ if ( !wasReplaced )
+ wasReplaced = fmt.Replace(strYear2, replacement2) > 0;
+
+ // 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 occurence of 1999 with the real year
+ wxString strYearReal, strYearReal2;
+ strYearReal.Printf(_T("%04d"), yearReal);
+ strYearReal2.Printf(_T("%02d"), yearReal % 100);
+ str.Replace(strYear, strYearReal);
+ str.Replace(strYear2, strYearReal2);
+
+ // and replace back all occurences of replacement string
+ if ( wasReplaced )
+ {
+ str.Replace(replacement2, strYear2);
+ str.Replace(replacement, strYear);
+ }
- // 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 occurence of 1999 with the real year
- wxString strYearReal, strYearReal2;
- strYearReal.Printf(_T("%04d"), yearReal);
- strYearReal2.Printf(_T("%02d"), yearReal % 100);
- str.Replace(strYear, strYearReal);
- str.Replace(strYear2, strYearReal2);
-
- // and replace back all occurences of replacement string
- if ( wasReplaced )
- {
- str.Replace(replacement2, strYear2);
- str.Replace(replacement, strYear);
+ res += str;
}
+ break;
- res += str;
- }
- break;
+ case _T('d'): // day of a month (01-31)
+ res += wxString::Format(fmt, tm.mday);
+ 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('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('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('j'): // day of the year
- res += wxString::Format(fmt, GetDayOfYear(tz));
- break;
+ case _T('m'): // month as a number (01-12)
+ res += wxString::Format(fmt, tm.mon + 1);
+ 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('M'): // minute as a decimal number (00-59)
- res += wxString::Format(fmt, tm.min);
- break;
+ case _T('p'): // AM or PM string
+ res += CallStrftime(_T("%p"), &tmTimeOnly);
+ break;
- case _T('p'): // AM or PM string
- res += CallStrftime(_T("%p"), &tmTimeOnly);
- break;
+ case _T('S'): // second as a decimal number (00-61)
+ res += wxString::Format(fmt, tm.sec);
+ 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('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'): // 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('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'): -- handled with "%c"
+ case _T('X'): // locale default time representation
+ // just use strftime() to format the time for us
+ res += CallStrftime(_T("%X"), &tmTimeOnly);
+ break;
- case _T('X'): // locale default time representation
- // just use strftime() to format the time for us
- res += CallStrftime(_T("%X"), &tmTimeOnly);
- break;
+ case _T('y'): // year without century (00-99)
+ res += wxString::Format(fmt, tm.year % 100);
+ 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('Y'): // year with century
- res += wxString::Format(fmt, tm.year);
- break;
+ case _T('Z'): // timezone name
+ res += CallStrftime(_T("%Z"), &tmTimeOnly);
+ break;
- case _T('Z'): // timezone name
- res += CallStrftime(_T("%Z"), &tmTimeOnly);
- break;
+ default:
+ // is it the format width?
+ fmt.Empty();
+ while ( *p == _T('-') || *p == _T('+') ||
+ *p == _T(' ') || wxIsdigit(*p) )
+ {
+ fmt += *p;
+ }
- default:
- // is it the format width?
- fmt.Empty();
- while ( *p == _T('-') || *p == _T('+') ||
- *p == _T(' ') || wxIsdigit(*p) )
- {
- fmt += *p;
- }
+ if ( !fmt.IsEmpty() )
+ {
+ // we've only got the flags and width so far in fmt
+ fmt.Prepend(_T('%'));
+ fmt.Append(_T('d'));
- if ( !fmt.IsEmpty() )
- {
- // we've only got the flags and width so far in fmt
- fmt.Prepend(_T('%'));
- fmt.Append(_T('d'));
+ restart = TRUE;
- goto restart;
- }
+ break;
+ }
- // no, it wasn't the width
- wxFAIL_MSG(_T("unknown format specificator"));
+ // no, it wasn't the width
+ wxFAIL_MSG(_T("unknown format specificator"));
- // fall through and just copy it nevertheless
+ // fall through and just copy it nevertheless
- case _T('%'): // a percent sign
- res += *p;
- break;
+ case _T('%'): // a percent sign
+ res += *p;
+ break;
- case 0: // the end of string
- wxFAIL_MSG(_T("missing format at the end of string"));
+ 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;
+ // just put the '%' which was the last char in format
+ res += _T('%');
+ break;
+ }
}
}
projects / wxWidgets.git / commitdiff
