website.py 文件源码

def slugify(s, max_length=None):
    """ Transform a string to a slug that can be used in a url path.

    This method will first try to do the job with python-slugify if present.
    Otherwise it will process string by stripping leading and ending spaces,
    converting unicode chars to ascii, lowering all chars and replacing spaces
    and underscore with hyphen "-".

    :param s: str
    :param max_length: int
    :rtype: str
    """
    s = ustr(s)
    if slugify_lib:
        # There are 2 different libraries only python-slugify is supported
        try:
            return slugify_lib.slugify(s, max_length=max_length)
        except TypeError:
            pass
    uni = unicodedata.normalize('NFKD', s).encode('ascii', 'ignore').decode('ascii')
    slug = re.sub('[\W_]', ' ', uni).strip().lower()
    slug = re.sub('[-\s]+', '-', slug)

    return slug[:max_length]