This is the FeinCMS HTML cleansing function which lived under the name of
feincms.utils.html.cleanse.cleanse_html, and has been moved to
its own repository now to be usable in other projects, and to not set a
precedent for a particular HTML cleaning technique in FeinCMS anymore.
Usage is simple:
from feincms_cleanse import cleanse_html >>> cleanse_html(u'<span style="font-weight:bold">some text</span>') u'<strong>some text</strong>'