make GetNumOfDaysInMonth static again; in datetimefmt.cpp use GetNumberOfDays instead.

Attempt to fix wxDateTime::ParseFormat(date, "%c") by using strptime() before our own heuristic checks.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59667 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/datetime.cpp

@@ -391,8 +391,7 @@ extern const char *wxDumpDate(const wxDateTime* dt)
 #endif // Debug
 
 // get the number of days in the given month of the given year
-// NOTE: not static because required by datetimefmt.cpp, too
+static inline
-inline
 wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month)
 {
     // the number of days in month in Julian/Gregorian calendar: the first line
@@ -502,41 +501,6 @@ static wxString CallStrftime(const wxString& format, const tm* tm)
 
 #endif // HAVE_STRFTIME
 
-#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
-
-// Unicode-friendly strptime() wrapper
-static const wxStringCharType *
-CallStrptime(const wxStringCharType *input, const char *fmt, tm *tm)
-{
-    // the problem here is that strptime() returns pointer into the string we
-    // passed to it while we're really interested in the pointer into the
-    // original, Unicode, string so we try to transform the pointer back
-#if wxUSE_UNICODE_WCHAR
-    wxCharBuffer inputMB(wxConvertWX2MB(input));
-#else // ASCII
-    const char * const inputMB = input;
-#endif // Unicode/Ascii
-
-    const char *result = strptime(inputMB, fmt, tm);
-    if ( !result )
-        return NULL;
-
-#if wxUSE_UNICODE_WCHAR
-    // FIXME: this is wrong in presence of surrogates &c
-    return input + (result - inputMB.data());
-#else // ASCII
-    return result;
-#endif // Unicode/Ascii
-}
-
-#endif // HAVE_STRPTIME
-
 // if year and/or month have invalid values, replace them with the current ones
 static void ReplaceDefaultYearMonthWithCurrent(int *year,
                                                wxDateTime::Month *month)

src/common/datetimefmt.cpp

@@ -79,8 +79,40 @@ static const int MIN_PER_HOUR = 60;
 // parsing helpers
 // ----------------------------------------------------------------------------
 
-// see datetime.cpp:
+#ifdef HAVE_STRPTIME
-wxDateTime::wxDateTime_t GetNumOfDaysInMonth(int year, wxDateTime::Month month);
+
+#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
+
+// Unicode-friendly strptime() wrapper
+static const wxStringCharType *
+CallStrptime(const wxStringCharType *input, const char *fmt, tm *tm)
+{
+    // the problem here is that strptime() returns pointer into the string we
+    // passed to it while we're really interested in the pointer into the
+    // original, Unicode, string so we try to transform the pointer back
+#if wxUSE_UNICODE_WCHAR
+    wxCharBuffer inputMB(wxConvertWX2MB(input));
+#else // ASCII
+    const char * const inputMB = input;
+#endif // Unicode/Ascii
+
+    const char *result = strptime(inputMB, fmt, tm);
+    if ( !result )
+        return NULL;
+
+#if wxUSE_UNICODE_WCHAR
+    // FIXME: this is wrong in presence of surrogates &c
+    return input + (result - inputMB.data());
+#else // ASCII
+    return result;
+#endif // Unicode/Ascii
+}
+
+#endif // HAVE_STRPTIME
 
 // return the month if the string is a month name or Inv_Month otherwise
 static wxDateTime::Month GetMonthFromName(const wxString& name, int flags)
@@ -1151,9 +1183,22 @@ wxDateTime::ParseFormat(const wxString& date,
             case _T('c'):       // locale default date and time  representation
                 {
                     wxDateTime dt;
+                    Tm tm;
 
                     const wxString inc(input);
 
+                    // NOTE: %c is locale-dependent; try strptime
+#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
+                    const wxStringCharType *
+                        result = CallStrptime(input, "%c", &tm);
+                    if ( !result )
+                    {
+                        // strptime() failed; try generic heuristic code
+#endif // HAVE_STRPTIME
+
                         // try the format which corresponds to ctime() output first
                         wxString::const_iterator endc;
                         if ( !dt.ParseFormat(inc, wxS("%a %b %d %H:%M:%S %Y"), &endc) &&
@@ -1164,7 +1209,13 @@ wxDateTime::ParseFormat(const wxString& date,
                             return NULL;
                         }
 
-                    Tm tm = dt.GetTm();
+                        tm = dt.GetTm();
+                        input += endc - inc.begin();
+#ifdef HAVE_STRPTIME
+                    }
+                    else
+                        input = result;     // proceed where strptime() ended
+#endif // HAVE_STRPTIME
 
                     haveDay = haveMon = haveYear =
                     haveHour = haveMin = haveSec = true;
@@ -1176,8 +1227,6 @@ wxDateTime::ParseFormat(const wxString& date,
                     year = tm.year;
                     mon = tm.mon;
                     mday = tm.mday;
-
-                    input += endc - inc.begin();
                 }
                 break;
 
@@ -1570,7 +1619,7 @@ wxDateTime::ParseFormat(const wxString& date,
     //      also always ignore the week day
     if ( haveDay )
     {
-        if ( mday > GetNumOfDaysInMonth(tm.year, tm.mon) )
+        if ( mday > GetNumberOfDays(tm.mon, tm.year) )
         {
             wxLogDebug(_T("bad month day in wxDateTime::ParseFormat"));
 
@@ -1798,7 +1847,7 @@ wxDateTime::ParseDate(const wxString& date, wxString::const_iterator *end)
                     // dates like 2/29/1976 which would be rejected otherwise
                     wxDateTime_t max_days = (wxDateTime_t)(
                         haveMon
-                        ? GetNumOfDaysInMonth(haveYear ? year : 1976, mon)
+                        ? GetNumberOfDays(mon, haveYear ? year : 1976)
                         : 31
                     );
 
@@ -1976,7 +2025,7 @@ wxDateTime::ParseDate(const wxString& date, wxString::const_iterator *end)
                 mon = (wxDateTime::Month)(day - 1);
 
                 // we're in the current year then
-                if ( (year > 0) && (year <= (int)GetNumOfDaysInMonth(Inv_Year, mon)) )
+                if ( (year > 0) && (year <= (int)GetNumberOfDays(mon, Inv_Year)) )
                 {
                     day = (wxDateTime_t)year;
 
@@ -2010,7 +2059,7 @@ wxDateTime::ParseDate(const wxString& date, wxString::const_iterator *end)
     {
         // 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 > GetNumOfDaysInMonth(year, mon) )
+        if ( day > GetNumberOfDays(mon, year) )
             return NULL;
 
         Set(day, mon, year);