Re: [Bug-gnubg] Documentation question: SGF-File-Usage of GnuBG

[Jim Segrave]

On Sat 10 Apr 2004 (13:09 +0200), amarganth wrote:
> Hi there
> 
> I'm looking to understand, what GnuBG writes into the SGF-File. I've
> found an SGF-File Reference, but GnuBG writes some special tags into
> this file, that I don't find explained. 
> 
> I've searched on the mailing lists, but nothing found. 
> 
> Do you have a description, some kind of file reference, as GnuBG uses
> the SGF-format?
> 
> Thanks a lot in advance

I don't think there is any documentation except the source code
itself. sgf.c will show you what's written into or read out of the
file in terms of what variables the data comes from. Then you have to
hunt through the code to find the use of those variables. 


Not meant to be defensive or dismissive:
Gnubg uses a lot of extensions which are directly related to the way
it stores and evaluates data. Even if documented, what use would it be?
It's very gnubg specific and potentially version specific (I put a
version number in when I expanded the rollout data being kept). If you
are thinking of writing utilities to do other things with the .sgf
format, then the only sensible way to do that is to keep those tools
as part of the overall source tree, so they should track the current
version.


-- 
Jim Segrave           address@hidden