def perform_extended_selection(self, event=None):
        """
        Performs extended word selection.
        :param event: QMouseEvent
        """
        TextHelper(self.editor).select_extended_word(
            continuation_chars=self.continuation_characters)
        if event:
            event.accept()
def perform_extended_selection ( self , event = None ) : TextHelper ( self . editor ) . select_extended_word ( continuation_chars = self . continuation_characters ) if event : event . accept ( )
Performs extended word selection.
        :param event: QMouseEvent