parser error

Open Frank-Buss opened this issue 3 years ago • 1 comments

I downloaded some games from lichess, and got this error:

/home/frank/.rbenv/versions/3.1.0/lib/ruby/gems/3.1.0/gems/whittle-0.0.8/lib/whittle/parser.rb:282:in `error': Parse error: expected :game_termination but got :tag_name on line 277080. (Whittle::ParseError)               
                                                                
1. e4 Nc6 2. Nf3 Nf6 3. Nc3 d5 4. exd5 Nxd5 5. Bc4 e6 6. d3 Bb4 7. Bd2 Bxc3 8. bxc3 P@g4 9. P@h6 gxf3 10. hxg7 Rg8 11. Bxd5 exd5 12. Qxf3 Qe7+ 13. Be3 B@f6 14. P@d4 Rxg7 15. P@h6 Rg8 1                                     
                                                                                ... ^ ... occurred here
                                                                
        from /home/frank/.rbenv/versions/3.1.0/lib/ruby/gems/3.1.0/gems/whittle-0.0.8/lib/whittle/parser.rb:231:in `block (2 levels) in parse'
        from /home/frank/.rbenv/versions/3.1.0/lib/ruby/gems/3.1.0/gems/whittle-0.0.8/lib/whittle/parser.rb:207:in `loop'

The chess.pgn library from Python has no problems with it.

Apr 22 '22 09:04 Frank-Buss

How does chess.pgn parse it? Does lichess have documentation for their PGN format?

I'm not sure what I'm looking at. Perhaps we should accept P (I assume it stands for "pawn", which I suppose is technically allowed in PGN, but not usually used in the SAN). The @ character is (to my knowledge) not a valid PGN/SAN character; what does it mean?

Maybe you could share the entire PGN file?

Apr 29 '22 09:04 tobiasvl