reader.py 文件源码

def _parse(self, text):
        '''
        Parse text with frontmatter, return metadata and content.
        If frontmatter is not found, returns an empty metadata dictionary and original text content.
        '''
        # ensure unicode first
        text = str(text).strip()

        if not text.startswith(DELIMITER):
            return {}, text

        try:
            _, fm, content = BOUNDARY.split(text, 2)
        except ValueError:
            # if we can't split, bail
            return {}, text
        # loader_class = self.loader_factory(self)
        metadata = yaml.load(fm, Loader=self.loader_class)
        metadata = metadata if (isinstance(metadata, dict)) else {}
        return metadata, content