Date: Thu, 17 Apr 1997 12:32:47 +0200 (MET DST) From: Arno Hollosi Subject: SGF FF[4] - version 9 Hello again, I've uploaded a new version of the draft to http://www.cis.tu-graz.ac.at/home/hollosi Two remarks before I start listing the changes: - the FF4 example has been updated according to the draft - SGFC V0.5 (the syntax checker/converter/reference implementation) is available. Some missing properties have been added, new options and bug fixes. Have a look. Changes from version 8 to version 9: ------------------------------------ - Pass [tt] may be used for boards <= 19x19 (for compatibility) - TC property removed (private to SGB) use V instead - corrected value type of IT & DO value type is none (not double) -- sorry for this mistake - TB & TW definition extended: may mark area too (if rule set uses area counting) - Long labels again (requested by Anders) Have a look at the FF4 example file for four different ways of displaying long labels (you may come up with an own idea too). Note: no discussion about this point please! Long labels are a feature just like rectangular boards or VW&DD. No applications HAS TO implement them - but it's nonsense to have a limitation in the file format itself. - NEW: how to convert old FF[123] files to FF[4] Listing of old properties and how to convert them and description of errors that frequently occur. - Corrected spelling mistakes and other errors Open questions: - should we remove BO & WO properties? I don't think that they'll be used much - should we allow text after a collection and in between game-trees? Actually EVERY reader has to skip text there anyway (if it can handle collections) - due to the fact that many SGF files have a trailing mail signature which would be (otherwise) treated like an error. - Anders suggested using the identifier SC for SQ. Note: SC was defined as 'secure stones' in FF[123]. SGB marked SC's as square. Should we use SC with new meaning 'mark with square' instead of 'secure stones'? /Arno