i18n.py 文件源码

def do_get_current_language_bidi(parser, token):
    """
    This will store the current language layout in the context.

    Usage::

        {% get_current_language_bidi as bidi %}

    This will fetch the currently active language's layout and
    put it's value into the ``bidi`` context variable.
    True indicates right-to-left layout, otherwise left-to-right
    """
    # token.split_contents() isn't useful here because this tag doesn't accept variable as arguments
    args = token.contents.split()
    if len(args) != 3 or args[1] != 'as':
        raise TemplateSyntaxError("'get_current_language_bidi' requires 'as variable' (got %r)" % args)
    return GetCurrentLanguageBidiNode(args[2])