code.py 文件源码

def run(self):
        code = u'\n'.join(self.content)

        linespec = self.options.get('emphasize-lines')
        if linespec:
            try:
                nlines = len(self.content)
                hl_lines = [x+1 for x in parselinenos(linespec, nlines)]
            except ValueError as err:
                document = self.state.document
                return [document.reporter.warning(str(err), line=self.lineno)]
        else:
            hl_lines = None

        if 'dedent' in self.options:
            lines = code.split('\n')
            lines = dedent_lines(lines, self.options['dedent'])
            code = '\n'.join(lines)

        literal = nodes.literal_block(code, code)
        literal['language'] = self.arguments[0]
        literal['linenos'] = 'linenos' in self.options or \
                             'lineno-start' in self.options
        extra_args = literal['highlight_args'] = {}
        if hl_lines is not None:
            extra_args['hl_lines'] = hl_lines
        if 'lineno-start' in self.options:
            extra_args['linenostart'] = self.options['lineno-start']
        set_source_info(self, literal)

        caption = self.options.get('caption')
        if caption:
            self.options.setdefault('name', nodes.fully_normalize_name(caption))
            literal = container_wrapper(self, literal, caption)

        # literal will be note_implicit_target that is linked from caption and numref.
        # when options['name'] is provided, it should be primary ID.
        self.add_name(literal)

        return [literal]