This package can be used to filter or purify HTML to prevent security attacks and for compliance with standards and admin. policies. It can parse HTML documents and rewrite it to filter tags and data that could be used to perform cross-site scripting (XSS) attacks.

The filtered tags and data can be controlled by black and white lists that define which tags, attributes and URL protocols that can be included or should be excluded. The rewritten HTML can be made XHTML compliant.

Features of htmLawed:
- Makes HTML code in text more secure and standard-compliant
- Processed text can be used in HTML 4, or XHTML 1 or 1.1 documents
- Restricts HTML by filtering un-allowed HTML elements, attributes, protocols, etc.
- Performs other tasks like transforming deprecated tags and converting relative to absolute URLs
- Highly customizable
- Single file of ~45 kb
- Used to filter & sanitize HTML code submitted in blog comments, forum posts, etc.; generate XML-compatible feed items from web-page excerpts; make old HTML code XHTML-compliant, and so on