def text_to_data(self, text, elt, ps):
        '''convert text into typecode specific data.  items in
        list are space separated.
        '''
        v = []
        items = text.split()
        for item in items:
            v.append(self.itemTypeCode.text_to_data(item, elt, ps))

        if self.pyclass is not None:
            return self.pyclass(v)
        return v
convert text into typecode specific data.  items in
        list are space separated.