[wxlua-users] Back to ParseDate

[Andre A. <ar...@ki...>]

using date:ParseDate(value, wx.wxString_const_iterator()) 

seems to work but looking into the run time we see that the pointer to the 
iterator is a bad pointer not very desirable.

supporting a single argument seems preferable.
The following code works.

static int LUACALL wxLua_wxDateTime_ParseDate(lua_State *L)
{
    // wxString date
    wxString date = wxlua_getwxStringtype(L, 2);
    // wxString::const_iterator end
    wxString::const_iterator * end;
	if (lua_type(L, 3) == LUA_TNONE)
		// missing argument
		end = &(wxString::const_iterator)date.end();
	else
		end = (wxString::const_iterator *)wxluaT_getuserdatatype(L, 3, 
wxluatype_wxString_const_iterator);

but a similar change would be needed for each function expecting an optional 
iterator.

currently wxlua_getwxStringtype does not seem to handle a missing argument.
If it returned NULL we could trigger on the result.

maybe a special function 
   end = GetOptionalIterator(L, 3, date);
which returns the_iterator || &date.end() could be used.

Andre