prompt.py 文件源码

def run(self):
        style = style_from_dict({
            Token.Prompt: 'bold',
            Token.Toolbar: '#ccc bg:#333',
            Token.Name: '#fff bold bg:#333',
        })

        history = InMemoryHistory()
        eventloop = create_eventloop()
        app = create_prompt_application(history=history, style=style,
                                        get_bottom_toolbar_tokens=self.get_bottom_toolbar_tokens,
                                        get_prompt_tokens=self.get_prompt_tokens)
        self.cli = CommandLineInterface(app, eventloop)

        with self.cli.patch_stdout_context(raw=True):
            while True:
                try:
                    self.cli.run()
                    doc = self.cli.return_value()
                    if doc is None:
                        return
                    cmd = shlex.split(doc.text)
                    app.buffer.reset(append_to_history=True)

                    if not cmd:
                        continue
                    elif cmd[0] in ('exit', 'quit'):
                        self.q.put(Exit())
                        return
                    elif cmd[0] == 'help':
                        print('Help text forthcoming.')
                    elif cmd[0] == 'skip':
                        self.q.put(Skip())
                    elif cmd[0] == 'set':
                        self.q.put(Set(cmd[1], ast.literal_eval(' '.join(cmd[2:]))))
                    else:
                        print('Unknown command. Try \'help\'.')
                except KeyboardInterrupt:
                    continue
                except EOFError:
                    self.q.put(Exit())
                    return
                except Exception as err:
                    print(err)
                    self.q.put(Exit())
                    return