templatetags.py 文件源码

def do_macro(parser, token):
    try:
        args = token.split_contents()
        tag_name, macro_name, args = args[0], args[1], args[2:]
    except IndexError:
        m = ("'%s' tag requires at least one argument (macro name)"
            % token.contents.split()[0])
        raise template.TemplateSyntaxError(m)
    # TODO: could do some validations here,
    # for now, "blow your head clean off"
    nodelist = parser.parse(('end__pypugjs_kwacro', ))
    parser.delete_first_token()

    ## Metadata of each macro are stored in a new attribute
    ## of 'parser' class. That way we can access it later
    ## in the template when processing 'usemacro' tags.
    _setup_macros_dict(parser)
    parser._macros[macro_name] = DefineMacroNode(macro_name, nodelist, args)
    return parser._macros[macro_name]