Many years ago I worked at a DEC-shop. We used a tool called Document (as far as I remember) to create documentation. It was provided by DEC and created the same layout as the original DEC documentation. Which is as far as I'm concerned a milestone in layout and typesetting.
Researching the web I found a more or less obscure company which sells this tool for Open VMS. But I would prefer an open source replacement.
Any help ?
Greetings Till