Sweet, check it:
WebIt! is a framework for manipulating XML in Scheme. The main features of WebIt! are: an XML pattern matching system based on that of Scheme’s syntax-rules and syntax-case macro systems, and a macro-style transformation system. An Abstract Data Type (ADT) for manipulating the XML Infoset is also provided. (The concrete representation of XML used by WebIt!, internally, is SXML.) Lastly, an embedding in Scheme of Cascading Stylesheets (CSS) is provided.
I know the CSS add will be a great help to many!!
Now how can we use this for XSS hacking…