Features:
- Interfaces for tree manipulation (like cxml-stp)
- Interface for an HTML 4.0 non-verifying parser
- Specific APIs to process HTML tree, especially serialization
- XPath API
- XSLT API
- Custom URL resolvers
- XPath extension functions
- XSLT extension elements
- Translate libxml2 and libxslt errors to Lisp conditions
- iterate drivers for enumerate child nodes and etc.
- Simple and compact syntax for generating XML (xfactory)