More progress, I'm afraid. I've incorporated the test program announced in the last post into the formatter tool. This is intended as a practical replacement for XSLT. So now I can convert real texts plus overlapping standoff properties into valid HTML. If the properties are derived from XML documents there won't be any overlap initially. What formatter does is loosen up that particular restriction. So in the GUI it will be possible to change properties or add new ones that overlap. And it will still format correctly. I'll be putting some test cases onto the testbed at Loyola soon.