EditTime is the stalwart of multi-lingual SGML publishing at the European Union, so it had an early XML advantage with full Unicode capability. Our coverage this past spring from SGML/XML Europe '98 stated: "The editor can produce fully compliant SGML and fully compliant XML from the same
executable, with the usual features you would expect from a structured editor, such as
context-sensitive markup. It uses Unicode UCS-2 internally and comes with several
filters for common encoding. For those who like to see the markup they're entering, EditTime has always gone farther than required on the
ease-of-use side, autogenerating required elements, synchronizing documents in
separate windows, and supporting undo, re-do and find and replace."
What's more, this tiny company was the first to base screen presentation on XSL, albeit a draft of the preliminary spec that is far from stable.