Parse long-form date strings::

            'May 31st, 2006'
            'Jan 1st'
            'July 2006'

        @type  dateString: string
        @param dateString: text to convert to a datetime

        @rtype:  struct_time
        @return: calculated C{struct_time} value of dateString

def parseDateText(self, dateString):
        """
        Parse long-form date strings::

            'May 31st, 2006'
            'Jan 1st'
            'July 2006'

        @type  dateString: string
        @param dateString: text to convert to a datetime

        @rtype:  struct_time
        @return: calculated C{struct_time} value of dateString
        """
        yr, mth, dy, hr, mn, sec, wd, yd, isdst = time.localtime()

        currentMth = mth
        currentDy  = dy

        s   = dateString.lower()
        m   = self.ptc.CRE_DATE3.search(s)
        mth = m.group('mthname')
        mth = self.ptc.MonthOffsets[mth]

        if m.group('day') !=  None:
            dy = int(m.group('day'))
        else:
            dy = 1

        if m.group('year') !=  None:
            yr = int(m.group('year'))

            # birthday epoch constraint
            if yr < self.ptc.BirthdayEpoch:
                yr += 2000
            elif yr < 100:
                yr += 1900

        elif (mth < currentMth) or (mth == currentMth and dy < currentDy):
            # if that day and month have already passed in this year,
            # then increment the year by 1
            yr += 1

        if dy > 0 and dy <= self.ptc.daysInMonth(mth, yr):
            sourceTime = (yr, mth, dy, hr, mn, sec, wd, yd, isdst)
        else:
            # Return current time if date string is invalid
            self.dateFlag = 0
            self.timeFlag = 0
            sourceTime    = time.localtime()

        return sourceTime