markup.py 文件源码

def _parse(self, source, encoding):
        if not isinstance(source, Stream):
            source = XMLParser(source, filename=self.filename,
                               encoding=encoding)
        stream = []

        for kind, data, pos in source:

            if kind is TEXT:
                for kind, data, pos in interpolate(data, self.filepath, pos[1],
                                                   pos[2], lookup=self.lookup):
                    stream.append((kind, data, pos))

            elif kind is PI and data[0] == 'python':
                if not self.allow_exec:
                    raise TemplateSyntaxError('Python code blocks not allowed',
                                              self.filepath, *pos[1:])
                try:
                    suite = Suite(data[1], self.filepath, pos[1],
                                  lookup=self.lookup)
                except SyntaxError, err:
                    raise TemplateSyntaxError(err, self.filepath,
                                              pos[1] + (err.lineno or 1) - 1,
                                              pos[2] + (err.offset or 0))
                stream.append((EXEC, suite, pos))

            elif kind is COMMENT:
                if not data.lstrip().startswith('!'):
                    stream.append((kind, data, pos))

            else:
                stream.append((kind, data, pos))

        return stream