
EDF is a simple text-format I created to describe content of one of our 
websites (www.webfree.de), which is then converted by a Ruby-script into HTML-code.
Of course, for complex websites or content which has a hierarchy, XML is much better.
But for simple content EDF is shorter and easier to read.
And of course you can write easily an EDF2XML converter.

There is no restriction to use EDF. It's public domain.
