> On 14 Dec 2023, at 08:18, brian--- via cctalk <cctalk@classiccmp.org> wrote:
-8<—- > I've done a lot of work converting technical documentation archives from > DCF and Bookmaster to Word and XML, but always worked from source, never > .BOO. A quick search suggests both Bookmaster and DCF use a library called GDDM which sounds like it is a device independent graphics format / renderer. Perhaps the .BOO format is related to this? In a different avenue of exploration, looking at some .BOO files in a hex editor, they do appear to use EBCDIC text, and near the start of the file there seems to be a long sequence of word fragments: often the trailing part of words. That suggested to me that perhaps it might be some sort of lookup table-based compression scheme for the text. I haven’t investigated beyond that yet. Someone in IBM must know, I suppose. d
