Mikael Karlsson has produced a document explaining how easy it is to write your XML transformation in Erlang:
Erlang has similarities to XSLT since both languages have a functional programming approach. Using the xpath implementation in the existing xmerl application it is possible to write XSLT like transforms in Erlang. One can also combine the transformations with the erlang scripting possibility in the yaws webserver to implement "on the fly" html conversions of xml documents. |