lexer.py 文件源码

def match_text(self):
        match = self.match(r"""
                (.*?)         # anything, followed by:
                (
                 (?<=\n)(?=[ \t]*(?=%|\#\#)) # an eval or line-based
                                             # comment preceded by a
                                             # consumed newline and whitespace
                 |
                 (?=\${)      # an expression
                 |
                 (?=</?[%&])  # a substitution or block or call start or end
                              # - don't consume
                 |
                 (\\\r?\n)    # an escaped newline  - throw away
                 |
                 \Z           # end of string
                )""", re.X | re.S)

        if match:
            text = match.group(1)
            if text:
                self.append_node(parsetree.Text, text)
            return True
        else:
            return False