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removed the goto provoking HP-UX compiler warnings

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6247 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2000-02-23 19:23:23 +00:00
parent b8b9762a1b
commit fc3398f8e0
1 changed files with 243 additions and 236 deletions
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479
src/common/datetime.cpp
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@ -1844,257 +1844,264 @@ wxString wxDateTime::Format(const wxChar *format, const TimeZone& tz) const
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.
case _T('b'): // a month name
case _T('B'):
res += GetMonthName(tm.mon,
*p == _T('b') ? Name_Abbr : Name_Full);
break;
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;
}
// 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 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;
}
// 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
case _T('c'): // locale default date and time representation
case _T('x'): // locale default date representation
//
// 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 )
// 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!
{
str.Replace(replacement2, strYear2);
str.Replace(replacement, strYear);
// 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;
}
// 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 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;
}
// 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);
}
res += str;
}
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('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
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('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
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 with century
res += wxString::Format(fmt, tm.year);
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;
}
res += str;
}
break;
if ( !fmt.IsEmpty() )
{
// we've only got the flags and width so far in fmt
fmt.Prepend(_T('%'));
fmt.Append(_T('d'));
case _T('d'): // day of a month (01-31)
res += wxString::Format(fmt, tm.mday);
break;
restart = TRUE;
case _T('H'): // hour in 24h format (00-23)
res += wxString::Format(fmt, tm.hour);
break;
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;
// no, it wasn't the width
wxFAIL_MSG(_T("unknown format specificator"));
case _T('j'): // day of the year
res += wxString::Format(fmt, GetDayOfYear(tz));
break;
// fall through and just copy it nevertheless
case _T('m'): // month as a number (01-12)
res += wxString::Format(fmt, tm.mon + 1);
break;
case _T('%'): // a percent sign
res += *p;
break;
case _T('M'): // minute as a decimal number (00-59)
res += wxString::Format(fmt, tm.min);
break;
case 0: // the end of string
wxFAIL_MSG(_T("missing format at the end of string"));
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('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
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 with century
res += wxString::Format(fmt, tm.year);
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;
}
if ( !fmt.IsEmpty() )
{
// we've only got the flags and width so far in fmt
fmt.Prepend(_T('%'));
fmt.Append(_T('d'));
goto restart;
}
// 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;
// just put the '%' which was the last char in format
res += _T('%');
break;
}
}
}