lex.py 文件源码

def get_tokens(self):
        tokens = self.ldict.get('tokens', None)
        if not tokens:
            self.log.error('No token list is defined')
            self.error = True
            return

        if not isinstance(tokens, (list, tuple)):
            self.log.error('tokens must be a list or tuple')
            self.error = True
            return

        if not tokens:
            self.log.error('tokens is empty')
            self.error = True
            return

        self.tokens = tokens

    # Validate the tokens