akho

from django import template

def __is_quoted(str):
    return (str[0] == str[-1] and str[0] in ('"', "'"))

def __process_quoted(tag_name, str):
    if not __is_quoted(str):
        raise template.TemplateSyntaxError("%r tag's argument %s should be in quotes" % (tag_name, str))
    return str[1:-1]