namespace
{
-#ifdef HAVE_STRPTIME
-
-#if wxUSE_UNIX && !defined(HAVE_STRPTIME_DECL)
- // configure detected that we had strptime() but not its declaration,
- // provide it ourselves
- extern "C" char *strptime(const char *, const char *, struct tm *);
-#endif
-
-// strptime() wrapper: call strptime() for the string starting at the given
-// iterator and fill output tm struct with the results and modify input to
-// point to the end of the string consumed by strptime() if successful,
-// otherwise return false and don't modify anything
-bool
-CallStrptime(const wxString& str,
- wxString::const_iterator& p,
- const char *fmt,
- tm *tm)
+enum
{
- const char *start = str.mb_str();
- start = wxStringOperations::AddToIter(start, p - str.begin());
-
- const char * const end = strptime(start, fmt, tm);
- if ( !end )
- return false;
-
- p += wxStringOperations::DiffIters(end, start);
- return true;
-}
-
-#endif // HAVE_STRPTIME
+ DateLang_English = 1,
+ DateLang_Local = 2
+};
// return the month if the string is a month name or Inv_Month otherwise
-wxDateTime::Month GetMonthFromName(const wxString& name, int flags)
+//
+// flags can contain wxDateTime::Name_Abbr/Name_Full or both of them and lang
+// can be either DateLang_Local (default) to interpret string as a localized
+// month name or DateLang_English to parse it as a standard English name or
+// their combination to interpret it in any way
+wxDateTime::Month
+GetMonthFromName(const wxString& name, int flags, int lang)
{
wxDateTime::Month mon;
for ( mon = wxDateTime::Jan; mon < wxDateTime::Inv_Month; wxNextMonth(mon) )
// and not versions
if ( flags & wxDateTime::Name_Full )
{
- if ( name.CmpNoCase(wxDateTime::
- GetMonthName(mon, wxDateTime::Name_Full)) == 0 )
+ if ( lang & DateLang_English )
{
- break;
+ if ( name.CmpNoCase(wxDateTime::GetEnglishMonthName(mon,
+ wxDateTime::Name_Full)) == 0 )
+ break;
+ }
+
+ if ( lang & DateLang_Local )
+ {
+ 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 )
+ if ( lang & DateLang_English )
{
- break;
+ if ( name.CmpNoCase(wxDateTime::GetEnglishMonthName(mon,
+ wxDateTime::Name_Abbr)) == 0 )
+ break;
+ }
+
+ if ( lang & DateLang_Local )
+ {
+ 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
-wxDateTime::WeekDay GetWeekDayFromName(const wxString& name, int flags)
+//
+// flags and lang parameters have the same meaning as for GetMonthFromName()
+// above
+wxDateTime::WeekDay
+GetWeekDayFromName(const wxString& name, int flags, int lang)
{
wxDateTime::WeekDay wd;
for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
{
- // case-insensitive comparison either one of or with both abbreviated
- // and not versions
if ( flags & wxDateTime::Name_Full )
{
- if ( name.CmpNoCase(wxDateTime::
- GetWeekDayName(wd, wxDateTime::Name_Full)) == 0 )
+ if ( lang & DateLang_English )
{
- break;
+ if ( name.CmpNoCase(wxDateTime::GetEnglishWeekDayName(wd,
+ wxDateTime::Name_Full)) == 0 )
+ break;
+ }
+
+ if ( lang & DateLang_Local )
+ {
+ 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 )
+ if ( lang & DateLang_English )
{
- break;
+ if ( name.CmpNoCase(wxDateTime::GetEnglishWeekDayName(wd,
+ wxDateTime::Name_Abbr)) == 0 )
+ break;
+ }
+
+ if ( lang & DateLang_Local )
+ {
+ if ( name.CmpNoCase(wxDateTime::GetWeekDayName(wd,
+ wxDateTime::Name_Abbr)) == 0 )
+ break;
}
}
}
// scans all digits (but no more than len) and returns the resulting number
bool GetNumericToken(size_t len,
wxString::const_iterator& p,
+ const wxString::const_iterator& end,
unsigned long *number)
{
size_t n = 1;
wxString s;
- while ( wxIsdigit(*p) )
+ while ( p != end && wxIsdigit(*p) )
{
s += *p++;
}
// scans all alphabetic characters and returns the resulting string
-wxString GetAlphaToken(wxString::const_iterator& p)
+wxString
+GetAlphaToken(wxString::const_iterator& p,
+ const wxString::const_iterator& end)
{
wxString s;
- while ( wxIsalpha(*p) )
+ while ( p != end && wxIsalpha(*p) )
{
s += *p++;
}
ParseFormatAt(wxString::const_iterator& p,
const wxString::const_iterator& end,
const wxString& fmt,
- const wxString& fmtAlt = wxString(),
- const wxString& fmtAlt2 = wxString())
+ // FIXME-VC6: using wxString() instead of wxEmptyString in the
+ // line below results in error C2062: type 'class
+ // wxString (__cdecl *)(void)' unexpected
+ const wxString& fmtAlt = wxEmptyString)
{
const wxString str(p, end);
wxString::const_iterator endParse;
wxDateTime dt;
if ( dt.ParseFormat(str, fmt, &endParse) ||
- (!fmtAlt.empty() && dt.ParseFormat(str, fmtAlt, &endParse)) ||
- (!fmtAlt2.empty() && dt.ParseFormat(str, fmtAlt2, &endParse)) )
+ (!fmtAlt.empty() && dt.ParseFormat(str, fmtAlt, &endParse)) )
{
p += endParse - str.begin();
}
//
// this function is "strict" by design - it must reject anything except true
// RFC822 time specs.
-//
-// TODO a great candidate for using reg exps
-const char *
+bool
wxDateTime::ParseRfc822Date(const wxString& date, wxString::const_iterator *end)
{
- // TODO: rewrite using iterators instead of wxChar pointers
- const wxStringCharType *p = date.wx_str();
- const wxStringCharType *comma = wxStrchr(p, wxS(','));
- if ( comma )
- {
- // the part before comma is the weekday
+ wxString::const_iterator p = date.begin();
- // skip it for now - we don't use but might check that it really
- // corresponds to the specfied date
- p = comma + 1;
-
- if ( *p != _T(' ') )
- {
- wxLogDebug(_T("no space after weekday in RFC822 time spec"));
+ // 1. week day
+ static const int WDAY_LEN = 3;
+ const wxString::const_iterator endWday = p + WDAY_LEN;
+ const wxString wday(p, endWday);
+ if ( GetWeekDayFromName(wday, Name_Abbr, DateLang_English) == Inv_WeekDay )
+ return false;
+ //else: ignore week day for now, we could also check that it really
+ // corresponds to the specified date
- return NULL;
- }
+ p = endWday;
- p++; // skip space
- }
+ // 2. separating comma
+ if ( *p++ != ',' || *p++ != ' ' )
+ return false;
- // the following 1 or 2 digits are the day number
+ // 3. day number
if ( !wxIsdigit(*p) )
- {
- wxLogDebug(_T("day number expected in RFC822 time spec, none found"));
-
- return NULL;
- }
+ return false;
- wxDateTime_t day = (wxDateTime_t)(*p++ - _T('0'));
+ wxDateTime_t day = (wxDateTime_t)(*p++ - '0');
if ( wxIsdigit(*p) )
{
day *= 10;
- day = (wxDateTime_t)(day + (*p++ - _T('0')));
+ day = (wxDateTime_t)(day + (*p++ - '0'));
}
- if ( *p++ != _T(' ') )
- {
- return NULL;
- }
-
- // the following 3 letters specify the month
- wxString monName(p, 3);
- Month mon;
- if ( monName == _T("Jan") )
- mon = Jan;
- else if ( monName == _T("Feb") )
- mon = Feb;
- else if ( monName == _T("Mar") )
- mon = Mar;
- else if ( monName == _T("Apr") )
- mon = Apr;
- else if ( monName == _T("May") )
- mon = May;
- else if ( monName == _T("Jun") )
- mon = Jun;
- else if ( monName == _T("Jul") )
- mon = Jul;
- else if ( monName == _T("Aug") )
- mon = Aug;
- else if ( monName == _T("Sep") )
- mon = Sep;
- else if ( monName == _T("Oct") )
- mon = Oct;
- else if ( monName == _T("Nov") )
- mon = Nov;
- else if ( monName == _T("Dec") )
- mon = Dec;
- else
- {
- wxLogDebug(_T("Invalid RFC 822 month name '%s'"), monName.c_str());
+ if ( *p++ != ' ' )
+ return false;
- return NULL;
- }
+ // 4. month name
+ static const int MONTH_LEN = 3;
+ const wxString::const_iterator endMonth = p + MONTH_LEN;
+ const wxString monName(p, endMonth);
+ Month mon = GetMonthFromName(monName, Name_Abbr, DateLang_English);
+ if ( mon == Inv_Month )
+ return false;
- p += 3;
+ p = endMonth;
- if ( *p++ != _T(' ') )
- {
- return NULL;
- }
+ if ( *p++ != ' ' )
+ return false;
- // next is the year
+ // 5. year
if ( !wxIsdigit(*p) )
- {
- // no year?
- return NULL;
- }
-
- int year = *p++ - _T('0');
+ return false;
- if ( !wxIsdigit(*p) )
- {
- // should have at least 2 digits in the year
- return NULL;
- }
+ int year = *p++ - '0';
+ if ( !wxIsdigit(*p) ) // should have at least 2 digits in the year
+ return false;
year *= 10;
- year += *p++ - _T('0');
+ year += *p++ - '0';
// is it a 2 digit year (as per original RFC 822) or a 4 digit one?
if ( wxIsdigit(*p) )
{
year *= 10;
- year += *p++ - _T('0');
+ year += *p++ - '0';
if ( !wxIsdigit(*p) )
{
// no 3 digit years please
- return NULL;
+ return false;
}
year *= 10;
- year += *p++ - _T('0');
+ year += *p++ - '0';
}
- if ( *p++ != _T(' ') )
- {
- return NULL;
- }
+ if ( *p++ != ' ' )
+ return false;
- // time is in the format hh:mm:ss and seconds are optional
+ // 6. time in hh:mm:ss format with seconds being optional
if ( !wxIsdigit(*p) )
- {
- return NULL;
- }
+ return false;
- wxDateTime_t hour = (wxDateTime_t)(*p++ - _T('0'));
+ wxDateTime_t hour = (wxDateTime_t)(*p++ - '0');
if ( !wxIsdigit(*p) )
- {
- return NULL;
- }
+ return false;
hour *= 10;
- hour = (wxDateTime_t)(hour + (*p++ - _T('0')));
+ hour = (wxDateTime_t)(hour + (*p++ - '0'));
- if ( *p++ != _T(':') )
- {
- return NULL;
- }
+ if ( *p++ != ':' )
+ return false;
if ( !wxIsdigit(*p) )
- {
- return NULL;
- }
+ return false;
- wxDateTime_t min = (wxDateTime_t)(*p++ - _T('0'));
+ wxDateTime_t min = (wxDateTime_t)(*p++ - '0');
if ( !wxIsdigit(*p) )
- {
- return NULL;
- }
+ return false;
min *= 10;
- min = (wxDateTime_t)(min + *p++ - _T('0'));
+ min += (wxDateTime_t)(*p++ - '0');
wxDateTime_t sec = 0;
- if ( *p == _T(':') )
+ if ( *p == ':' )
{
p++;
if ( !wxIsdigit(*p) )
- {
- return NULL;
- }
+ return false;
- sec = (wxDateTime_t)(*p++ - _T('0'));
+ sec = (wxDateTime_t)(*p++ - '0');
if ( !wxIsdigit(*p) )
- {
- return NULL;
- }
+ return false;
sec *= 10;
- sec = (wxDateTime_t)(sec + *p++ - _T('0'));
+ sec += (wxDateTime_t)(*p++ - '0');
}
- if ( *p++ != _T(' ') )
- {
- return NULL;
- }
+ if ( *p++ != ' ' )
+ return false;
- // and now the interesting part: the timezone
+ // 7. now the interesting part: the timezone
int offset wxDUMMY_INITIALIZE(0);
- if ( *p == _T('-') || *p == _T('+') )
+ if ( *p == '-' || *p == '+' )
{
// the explicit offset given: it has the form of hhmm
- bool plus = *p++ == _T('+');
+ bool plus = *p++ == '+';
if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) )
- {
- return NULL;
- }
+ return false;
+
// hours
- offset = MIN_PER_HOUR*(10*(*p - _T('0')) + (*(p + 1) - _T('0')));
+ offset = MIN_PER_HOUR*(10*(*p - '0') + (*(p + 1) - '0'));
p += 2;
if ( !wxIsdigit(*p) || !wxIsdigit(*(p + 1)) )
- {
- return NULL;
- }
+ return false;
// minutes
- offset += 10*(*p - _T('0')) + (*(p + 1) - _T('0'));
+ offset += 10*(*p - '0') + (*(p + 1) - '0');
if ( !plus )
- {
offset = -offset;
- }
p += 2;
}
- else
+ else // not numeric
{
// the symbolic timezone given: may be either military timezone or one
// of standard abbreviations
};
if ( *p < _T('A') || *p > _T('Z') || *p == _T('J') )
- {
- wxLogDebug(_T("Invalid militaty timezone '%c'"), *p);
+ return false;
- return NULL;
- }
-
- offset = offsets[*p++ - _T('A')];
+ offset = offsets[*p++ - 'A'];
}
else
{
// abbreviation
- wxString tz = p;
+ const wxString tz(p, date.end());
if ( tz == _T("UT") || tz == _T("UTC") || tz == _T("GMT") )
offset = 0;
else if ( tz == _T("AST") )
else if ( tz == _T("PDT") )
offset = PDT - GMT0;
else
- {
- wxLogDebug(_T("Unknown RFC 822 timezone '%s'"), p);
-
- return NULL;
- }
+ return false;
p += tz.length();
}
offset *= MIN_PER_HOUR;
}
+
// the spec was correct, construct the date from the values we found
Set(day, mon, year, hour, min, sec);
MakeFromTimezone(TimeZone::Make(offset*SEC_PER_MIN));
- const size_t endpos = p - date.wx_str();
if ( end )
- *end = date.begin() + endpos;
-
- return date.c_str() + endpos;
-}
-
-#ifdef __WINDOWS__
-
-// returns the string containing strftime() format used for short dates in the
-// current locale or an empty string
-static wxString GetLocaleDateFormat()
-{
- wxString fmtWX;
-
- // there is no setlocale() under Windows CE, so just always query the
- // system there
-#ifndef __WXWINCE__
- if ( strcmp(setlocale(LC_ALL, NULL), "C") != 0 )
-#endif
- {
- // The locale was programatically set to non-C. We assume that this was
- // done using wxLocale, in which case thread's current locale is also
- // set to correct LCID value and we can use GetLocaleInfo to determine
- // the correct formatting string:
-#ifdef __WXWINCE__
- LCID lcid = LOCALE_USER_DEFAULT;
-#else
- LCID lcid = GetThreadLocale();
-#endif
- // according to MSDN 80 chars is max allowed for short date format
- wxChar fmt[81];
- if ( ::GetLocaleInfo(lcid, LOCALE_SSHORTDATE, fmt, WXSIZEOF(fmt)) )
- {
- wxChar chLast = _T('\0');
- size_t lastCount = 0;
- for ( const wxChar *p = fmt; /* NUL handled inside */; p++ )
- {
- if ( *p == chLast )
- {
- lastCount++;
- continue;
- }
-
- switch ( *p )
- {
- // these characters come in groups, start counting them
- case _T('d'):
- case _T('M'):
- case _T('y'):
- case _T('g'):
- chLast = *p;
- lastCount = 1;
- break;
-
- default:
- // first deal with any special characters we have had
- if ( lastCount )
- {
- switch ( chLast )
- {
- case _T('d'):
- switch ( lastCount )
- {
- case 1: // d
- case 2: // dd
- // these two are the same as we
- // don't distinguish between 1 and
- // 2 digits for days
- fmtWX += _T("%d");
- break;
-
- case 3: // ddd
- fmtWX += _T("%a");
- break;
-
- case 4: // dddd
- fmtWX += _T("%A");
- break;
-
- default:
- wxFAIL_MSG( _T("too many 'd's") );
- }
- break;
-
- case _T('M'):
- switch ( lastCount )
- {
- case 1: // M
- case 2: // MM
- // as for 'd' and 'dd' above
- fmtWX += _T("%m");
- break;
-
- case 3:
- fmtWX += _T("%b");
- break;
-
- case 4:
- fmtWX += _T("%B");
- break;
-
- default:
- wxFAIL_MSG( _T("too many 'M's") );
- }
- break;
-
- case _T('y'):
- switch ( lastCount )
- {
- case 1: // y
- case 2: // yy
- fmtWX += _T("%y");
- break;
-
- case 4: // yyyy
- fmtWX += _T("%Y");
- break;
-
- default:
- wxFAIL_MSG( _T("wrong number of 'y's") );
- }
- break;
-
- case _T('g'):
- // strftime() doesn't have era string,
- // ignore this format
- wxASSERT_MSG( lastCount <= 2,
- _T("too many 'g's") );
- break;
-
- default:
- wxFAIL_MSG( _T("unreachable") );
- }
-
- chLast = _T('\0');
- lastCount = 0;
- }
-
- // not a special character so must be just a separator,
- // treat as is
- if ( *p != _T('\0') )
- {
- if ( *p == _T('%') )
- {
- // this one needs to be escaped
- fmtWX += _T('%');
- }
-
- fmtWX += *p;
- }
- }
-
- if ( *p == _T('\0') )
- break;
- }
- }
- //else: GetLocaleInfo() failed, leave fmtDate value unchanged and
- // try our luck with the default formats
- }
- //else: default C locale, default formats should work
+ *end = p;
- return fmtWX;
+ return true;
}
-#endif // __WINDOWS__
-
-const char *
+bool
wxDateTime::ParseFormat(const wxString& date,
const wxString& format,
const wxDateTime& dateDef,
- wxString::const_iterator *end)
+ wxString::const_iterator *endParse)
{
- wxCHECK_MSG( !format.empty(), NULL, "format can't be empty" );
+ wxCHECK_MSG( !format.empty(), false, "format can't be empty" );
+ wxCHECK_MSG( endParse, false, "end iterator pointer must be specified" );
wxString str;
unsigned long num;
int year = 0;
wxString::const_iterator input = date.begin();
+ const wxString::const_iterator end = date.end();
for ( wxString::const_iterator fmt = format.begin(); fmt != format.end(); ++fmt )
{
if ( *fmt != _T('%') )
{
// a white space in the format string matches 0 or more white
// spaces in the input
- while ( wxIsspace(*input) )
+ while ( input != end && wxIsspace(*input) )
{
input++;
}
{
// any other character (not whitespace, not '%') must be
// matched by itself in the input
- if ( *input++ != *fmt )
+ if ( input == end || *input++ != *fmt )
{
// no match
- return NULL;
+ return false;
}
}
while ( wxIsdigit(*++fmt) )
{
width *= 10;
- width += *fmt - _T('0');
+ width += *fmt - '0';
}
// the default widths for the various fields
case _T('a'): // a weekday name
case _T('A'):
{
- int flag = *fmt == _T('a') ? Name_Abbr : Name_Full;
- wday = GetWeekDayFromName(GetAlphaToken(input), flag);
+ wday = GetWeekDayFromName
+ (
+ GetAlphaToken(input, end),
+ *fmt == 'a' ? Name_Abbr : Name_Full,
+ DateLang_Local
+ );
if ( wday == Inv_WeekDay )
{
// no match
- return NULL;
+ return false;
}
}
haveWDay = true;
case _T('b'): // a month name
case _T('B'):
{
- int flag = *fmt == _T('b') ? Name_Abbr : Name_Full;
- mon = GetMonthFromName(GetAlphaToken(input), flag);
+ mon = GetMonthFromName
+ (
+ GetAlphaToken(input, end),
+ *fmt == 'b' ? Name_Abbr : Name_Full,
+ DateLang_Local
+ );
if ( mon == Inv_Month )
{
// no match
- return NULL;
+ return false;
}
}
haveMon = true;
case _T('c'): // locale default date and time representation
{
-#ifdef HAVE_STRPTIME
- struct tm tm;
+ wxDateTime dt;
- // 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
- if ( CallStrptime(date, input, "%c", &tm) )
- {
- hour = tm.tm_hour;
- min = tm.tm_min;
- sec = tm.tm_sec;
+ const wxString
+ fmtDateTime = wxLocale::GetInfo(wxLOCALE_DATE_TIME_FMT);
+ if ( !fmtDateTime.empty() )
+ dt = ParseFormatAt(input, end, fmtDateTime);
- year = 1900 + tm.tm_year;
- mon = (Month)tm.tm_mon;
- mday = tm.tm_mday;
+ if ( !dt.IsValid() )
+ {
+ // also try the format which corresponds to ctime()
+ // output (i.e. the "C" locale default)
+ dt = ParseFormatAt(input, end, wxS("%a %b %d %H:%M:%S %Y"));
}
- else // strptime() failed; try generic heuristic code
-#endif // HAVE_STRPTIME
+
+ if ( !dt.IsValid() )
{
+ // and finally also the two generic date/time formats
+ dt = ParseFormatAt(input, end, wxS("%x %X"), wxS("%X %x"));
+ }
- // try the format which corresponds to ctime() output
- // first, then the generic date/time formats
- const wxDateTime dt = ParseFormatAt
- (
- input,
- date.end(),
- wxS("%a %b %d %H:%M:%S %Y"),
- wxS("%x %X"),
- wxS("%X %x")
- );
- if ( !dt.IsValid() )
- return NULL;
+ if ( !dt.IsValid() )
+ return false;
- Tm tm = dt.GetTm();
+ const Tm tm = dt.GetTm();
- hour = tm.hour;
- min = tm.min;
- sec = tm.sec;
+ hour = tm.hour;
+ min = tm.min;
+ sec = tm.sec;
- year = tm.year;
- mon = tm.mon;
- mday = tm.mday;
- }
+ year = tm.year;
+ mon = tm.mon;
+ mday = tm.mday;
haveDay = haveMon = haveYear =
haveHour = haveMin = haveSec = true;
break;
case _T('d'): // day of a month (01-31)
- if ( !GetNumericToken(width, input, &num) ||
+ if ( !GetNumericToken(width, input, end, &num) ||
(num > 31) || (num < 1) )
{
// no match
- return NULL;
+ return false;
}
// we can't check whether the day range is correct yet, will
break;
case _T('H'): // hour in 24h format (00-23)
- if ( !GetNumericToken(width, input, &num) || (num > 23) )
+ if ( !GetNumericToken(width, input, end, &num) || (num > 23) )
{
// no match
- return NULL;
+ return false;
}
haveHour = true;
break;
case _T('I'): // hour in 12h format (01-12)
- if ( !GetNumericToken(width, input, &num) || !num || (num > 12) )
+ if ( !GetNumericToken(width, input, end, &num) ||
+ !num || (num > 12) )
{
// no match
- return NULL;
+ return false;
}
haveHour = true;
break;
case _T('j'): // day of the year
- if ( !GetNumericToken(width, input, &num) || !num || (num > 366) )
+ if ( !GetNumericToken(width, input, end, &num) ||
+ !num || (num > 366) )
{
// no match
- return NULL;
+ return false;
}
haveYDay = true;
break;
case _T('l'): // milliseconds (0-999)
- if ( !GetNumericToken(width, input, &num) )
- return NULL;
+ if ( !GetNumericToken(width, input, end, &num) )
+ return false;
haveMsec = true;
msec = (wxDateTime_t)num;
break;
case _T('m'): // month as a number (01-12)
- if ( !GetNumericToken(width, input, &num) || !num || (num > 12) )
+ if ( !GetNumericToken(width, input, end, &num) ||
+ !num || (num > 12) )
{
// no match
- return NULL;
+ return false;
}
haveMon = true;
break;
case _T('M'): // minute as a decimal number (00-59)
- if ( !GetNumericToken(width, input, &num) || (num > 59) )
+ if ( !GetNumericToken(width, input, end, &num) ||
+ (num > 59) )
{
// no match
- return NULL;
+ return false;
}
haveMin = true;
case _T('p'): // AM or PM string
{
- wxString am, pm, token = GetAlphaToken(input);
+ wxString am, pm, token = GetAlphaToken(input, end);
// some locales have empty AM/PM tokens and thus when formatting
// dates with the %p specifier nothing is generated; when trying to
GetAmPmStrings(&am, &pm);
if (am.empty() && pm.empty())
- return NULL; // no am/pm strings defined
+ return false; // no am/pm strings defined
if ( token.CmpNoCase(pm) == 0 )
{
isPM = true;
else if ( token.CmpNoCase(am) != 0 )
{
// no match
- return NULL;
+ return false;
}
}
break;
case _T('r'): // time as %I:%M:%S %p
{
wxDateTime dt;
- if ( !dt.ParseFormat(wxString(input, date.end()),
+ if ( !dt.ParseFormat(wxString(input, end),
wxS("%I:%M:%S %p"), &input) )
- return NULL;
+ return false;
haveHour = haveMin = haveSec = true;
- Tm tm = dt.GetTm();
+ const Tm tm = dt.GetTm();
hour = tm.hour;
min = tm.min;
sec = tm.sec;
case _T('R'): // time as %H:%M
{
const wxDateTime
- dt = ParseFormatAt(input, date.end(), wxS("%H:%M"));
+ dt = ParseFormatAt(input, end, wxS("%H:%M"));
if ( !dt.IsValid() )
- return NULL;
+ return false;
haveHour =
haveMin = true;
- Tm tm = dt.GetTm();
+ const Tm tm = dt.GetTm();
hour = tm.hour;
min = tm.min;
}
break;
case _T('S'): // second as a decimal number (00-61)
- if ( !GetNumericToken(width, input, &num) || (num > 61) )
+ if ( !GetNumericToken(width, input, end, &num) ||
+ (num > 61) )
{
// no match
- return NULL;
+ return false;
}
haveSec = true;
case _T('T'): // time as %H:%M:%S
{
const wxDateTime
- dt = ParseFormatAt(input, date.end(), wxS("%H:%M:%S"));
+ dt = ParseFormatAt(input, end, wxS("%H:%M:%S"));
if ( !dt.IsValid() )
- return NULL;
+ return false;
haveHour =
haveMin =
haveSec = true;
- Tm tm = dt.GetTm();
+ const 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(width, input, &num) || (wday > 6) )
+ if ( !GetNumericToken(width, input, end, &num) ||
+ (wday > 6) )
{
// no match
- return NULL;
+ return false;
}
haveWDay = true;
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
{
- struct tm tm;
+ wxString
+ fmtDate = wxLocale::GetInfo(wxLOCALE_SHORT_DATE_FMT),
+ fmtDateAlt = wxLocale::GetInfo(wxLOCALE_LONG_DATE_FMT);
- if ( CallStrptime(date, input, "%x", &tm) )
- {
- haveDay = haveMon = haveYear = true;
-
- year = 1900 + tm.tm_year;
- mon = (Month)tm.tm_mon;
- mday = tm.tm_mday;
-
- break;
- }
- }
-#endif // HAVE_STRPTIME
-
- {
- wxString fmtDate,
- fmtDateAlt;
-
-#ifdef __WINDOWS__
- // The above doesn't work for all locales, try to query
- // Windows for the right way of formatting the date:
- fmtDate = GetLocaleDateFormat();
if ( fmtDate.empty() )
-#endif // __WINDOWS__
{
if ( IsWestEuropeanCountry(GetCountry()) ||
GetCountry() == Russia )
{
- fmtDate = _T("%d/%m/%y");
- fmtDateAlt = _T("%m/%d/%y");
- }
+ fmtDate = wxS("%d/%m/%Y");
+ fmtDateAlt = wxS("%m/%d/%Y");
+ }
else // assume USA
{
- fmtDate = _T("%m/%d/%y");
- fmtDateAlt = _T("%d/%m/%y");
+ fmtDate = wxS("%m/%d/%Y");
+ fmtDateAlt = wxS("%d/%m/%Y");
}
}
- const wxDateTime
- dt = ParseFormatAt(input, date.end(),
- fmtDate, fmtDateAlt);
+ wxDateTime
+ dt = ParseFormatAt(input, end, fmtDate, fmtDateAlt);
+
if ( !dt.IsValid() )
- return NULL;
+ {
+ // try with short years too
+ fmtDate.Replace("%Y","%y");
+ fmtDateAlt.Replace("%Y","%y");
+ dt = ParseFormatAt(input, end, fmtDate, fmtDateAlt);
- Tm tm = dt.GetTm();
+ if ( !dt.IsValid() )
+ return false;
+ }
+
+ const Tm tm = dt.GetTm();
haveDay =
haveMon =
break;
case _T('X'): // locale default time representation
-#ifdef HAVE_STRPTIME
{
- // use strptime() to do it for us (FIXME !Unicode friendly)
- struct tm tm;
- if ( !CallStrptime(date, input, "%X", &tm) )
- return NULL;
+ wxString fmtTime = wxLocale::GetInfo(wxLOCALE_TIME_FMT),
+ fmtTimeAlt;
- haveHour = haveMin = haveSec = true;
+ if ( fmtTime.empty() )
+ {
+ // 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
+ fmtTime = "%T";
+ fmtTimeAlt = "%r";
+ }
- 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
const wxDateTime
- dt = ParseFormatAt(input, date.end(), "%T", "%r");
+ dt = ParseFormatAt(input, end, fmtTime, fmtTimeAlt);
if ( !dt.IsValid() )
- return NULL;
+ return false;
haveHour =
haveMin =
haveSec = true;
- Tm tm = dt.GetTm();
+ const Tm tm = dt.GetTm();
hour = tm.hour;
min = tm.min;
sec = tm.sec;
}
-#endif // HAVE_STRPTIME/!HAVE_STRPTIME
break;
case _T('y'): // year without century (00-99)
- if ( !GetNumericToken(width, input, &num) || (num > 99) )
+ if ( !GetNumericToken(width, input, end, &num) ||
+ (num > 99) )
{
// no match
- return NULL;
+ return false;
}
haveYear = true;
break;
case _T('Y'): // year with century
- if ( !GetNumericToken(width, input, &num) )
+ if ( !GetNumericToken(width, input, end, &num) )
{
// no match
- return NULL;
+ return false;
}
haveYear = true;
break;
case _T('Z'): // timezone name
- wxFAIL_MSG(_T("TODO"));
+ // FIXME: currently we just ignore everything that looks like a
+ // time zone here
+ GetAlphaToken(input, end);
break;
case _T('%'): // a percent sign
if ( *input++ != _T('%') )
{
// no match
- return NULL;
+ return false;
}
break;
// fall through
default: // not a known format spec
- return NULL;
+ return false;
}
}
if ( haveDay )
{
if ( mday > GetNumberOfDays(tm.mon, tm.year) )
- {
- wxLogDebug(_T("bad month day in wxDateTime::ParseFormat"));
-
- return NULL;
- }
+ return false;
tm.mday = mday;
}
else if ( haveYDay )
{
if ( yday > GetNumberOfDays(tm.year) )
- {
- wxLogDebug(_T("bad year day in wxDateTime::ParseFormat"));
-
- return NULL;
- }
+ return false;
Tm tm2 = wxDateTime(1, Jan, tm.year).SetToYearDay(yday).GetTm();
// finally check that the week day is consistent -- if we had it
if ( haveWDay && GetWeekDay() != wday )
- {
- wxLogDebug(_T("inconsistsnet week day in wxDateTime::ParseFormat()"));
+ return false;
- return NULL;
- }
+ *endParse = input;
- if ( end )
- *end = input;
-
- return date.c_str() + (input - date.begin());
+ return true;
}
-const char *
+bool
wxDateTime::ParseDateTime(const wxString& date, wxString::const_iterator *end)
{
+ wxCHECK_MSG( end, false, "end iterator pointer must be specified" );
+
// Set to current day and hour, so strings like '14:00' becomes today at
// 14, not some other random date
wxDateTime dtDate = wxDateTime::Today();
const wxString timestr(endDate, date.end());
if ( !dtTime.ParseTime(timestr, &endTime) )
- return NULL;
+ return false;
endBoth = endDate + (endTime - timestr.begin());
}
{
// check if we have a time followed by a date
if ( !dtTime.ParseTime(date, &endTime) )
- return NULL;
+ return false;
while ( endTime != date.end() && wxIsspace(*endTime) )
++endTime;
const wxString datestr(endTime, date.end());
if ( !dtDate.ParseDate(datestr, &endDate) )
- return NULL;
+ return false;
endBoth = endTime + (endDate - datestr.begin());
}
dtTime.GetHour(), dtTime.GetMinute(), dtTime.GetSecond(),
dtTime.GetMillisecond());
- // Return endpoint of scan
- if ( end )
- *end = endBoth;
+ *end = endBoth;
- return date.c_str() + (endBoth - date.begin());
+ return true;
}
-const char *
+bool
wxDateTime::ParseDate(const wxString& date, wxString::const_iterator *end)
{
+ wxCHECK_MSG( end, false, "end iterator pointer must be specified" );
+
// 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)
{ wxTRANSLATE("tomorrow"), 1 },
};
+ const size_t lenRest = date.end() - p;
for ( size_t n = 0; n < WXSIZEOF(literalDates); n++ )
{
const wxString dateStr = wxGetTranslation(literalDates[n].str);
size_t len = dateStr.length();
+ if ( len > lenRest )
+ continue;
+
const wxString::const_iterator pEnd = p + len;
if ( wxString(p, pEnd).CmpNoCase(dateStr) == 0 )
{
*this += wxDateSpan::Days(dayDiffFromToday);
}
- if ( end )
- *end = pEnd;
+ *end = pEnd;
- return wxStringOperations::AddToIter(date.c_str().AsChar(),
- pEnd - pBegin);
+ return true;
}
}
else // not a number
{
// be careful not to overwrite the current mon value
- Month mon2 = GetMonthFromName(token, Name_Full | Name_Abbr);
+ Month mon2 = GetMonthFromName
+ (
+ token,
+ Name_Full | Name_Abbr,
+ DateLang_Local | DateLang_English
+ );
if ( mon2 != Inv_Month )
{
// it's a month
}
else // not a valid month name
{
- WeekDay wday2 = GetWeekDayFromName(token, Name_Full | Name_Abbr);
+ WeekDay wday2 = GetWeekDayFromName
+ (
+ token,
+ Name_Full | Name_Abbr,
+ DateLang_Local | DateLang_English
+ );
if ( wday2 != Inv_WeekDay )
{
// a week day
// 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 NULL;
- }
+ return false;
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 NULL;
+ return false;
}
if ( !haveWDay && haveYear && !(haveDay && haveMon) )
}
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 NULL;
- }
+ return false;
}
if ( !haveMon )
// normally we check the day above but the check is optimistic in case
// we find the day before its month/year so we have to redo it now
if ( day > GetNumberOfDays(mon, year) )
- return NULL;
+ return false;
Set(day, mon, year);
{
// check that it is really the same
if ( GetWeekDay() != wday )
- {
- // inconsistency detected
- wxLogDebug(_T("ParseDate: inconsistent day/weekday."));
-
- return NULL;
- }
+ return false;
}
}
else // haveWDay
p--;
}
- if ( end )
- *end = p;
+ *end = p;
- return wxStringOperations::AddToIter(date.c_str().AsChar(), p - pBegin);
+ return true;
}
-const char *
+bool
wxDateTime::ParseTime(const wxString& time, wxString::const_iterator *end)
{
+ wxCHECK_MSG( end, false, "end iterator pointer must be specified" );
+
// first try some extra things
static const struct
{
const char *name;
- wxDateTime_t hour;
+ wxDateTime_t hour;
} stdTimes[] =
{
{ wxTRANSLATE("noon"), 12 },
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 )
+ const wxString timeString = wxGetTranslation(stdTimes[n].name);
+ const wxString::const_iterator p = time.begin() + timeString.length();
+ if ( timeString.CmpNoCase(wxString(time.begin(), p)) == 0 )
{
// casts required by DigitalMars
Set(stdTimes[n].hour, wxDateTime_t(0), wxDateTime_t(0));
if ( end )
- *end = time.begin() + len;
+ *end = p;
- return time.c_str() + len;
+ return true;
}
}
for ( size_t nFmt = 0; nFmt < WXSIZEOF(timeFormats); nFmt++ )
{
- const char *result = ParseFormat(time, timeFormats[nFmt], end);
- if ( result )
- return result;
+ if ( ParseFormat(time, timeFormats[nFmt], end) )
+ return true;
}
- return NULL;
+ return false;
}
// ----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff