Improve cream.util.string.slugify

[kkris]

I would like to use this little snippet from Armin Ronacher, because it produces real nice slugs and e.g. converts ö to oe instead of o or -- like it is doing now.
But to use this we need http://pypi.python.org/pypi/translitcodec as a dependency.

import re
import translitcodec

_punct_re = re.compile(r'[\t !"#$%&\'()*\-/<=>?@\[\\\]^_`{|},.]+')


def slugify(text, delim=u'-'):
    """Generates an ASCII-only slug."""
    result = []
    for word in _punct_re.split(text.lower()):
        word = word.encode('translit/long')
        if word:
            result.append(word)
    return unicode(delim.join(result))

[jonashaag]

-1 as slugify isn't used for stuff users see but just for file names (which are an implementation detail)

[kkris]

yeah, but the current implementation has some pitfalls, as "ö", "ä" and "ü" result in the same string.

e.g. it is possible to have two different profiles (think of "hülle", "hölle") which result in the same filename.