rdmc.py 文件源码

def main_completer_handler(self, text, state):
        """ Handler of all input entries, tabs, and history

        :param text: input text
        :type text: string.
        :param state: current state
        :type state: string.
        """
        response = None

        # Build match list on first iteration else continue
        if state == 0:
            origline = readline.get_line_buffer()
            begin = readline.get_begidx()
            end = readline.get_endidx()
            being_completed = origline[begin:end]
            words = origline.split()

            if not words:
                # option for words list
                self.current_candidates = sorted(self.options.keys())
            else:
                # traverse all words entries and passing accordingly
                try:
                    if begin == 0:
                        # first word
                        candidates = self.options.keys()
                    else:
                        # later word
                        first = words[0]
                        candidates = self.options[first]
                    if being_completed:
                        # match options with portion of input being completed
                        self.current_candidates = [w for w in candidates\
                           if w.lower().startswith(being_completed.lower())]
                    else:
                        # matching empty string so use all candidates
                        self.current_candidates = candidates

                except (KeyError, IndexError):
                    self.current_candidates = []

        # Return the state from the match list if found otherwise return None.
        try:
            response = self.current_candidates[state]
        except IndexError:
            # No candidate found for state
            response = None

        # Response return
        return response