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|
parser SGF:
ignore: '\\s+'
### Go-specific tokens: http://www.red-bean.com/sgf/go.html ###
token Point: '[a-zA-Z]{2}'
token Move: '[a-zA-Z]{2}'
token Stone: '[a-zA-Z]{2}'
### SGF Tokens as specified in http://www.red-bean.com/sgf/sgf4.html ###
token PropID: '([a-z]*[A-Z]){1,2}[a-z]*'
token Number: '[+-]?[0-9]+'
token Real: '[+-]?[0-9]+(\\.[0-9]+)?'
token Color: '(B|W)'
token Text: '[^\\]]*' # In YAPPS, the longest matches take precedence,
# if they're both the same length, then the
# first one listed in the grammar is used.
rule GameTree: "\\(" {{ res = [] }}
(Node {{ res.append(Node) }})+
(GameTree {{ res.append(GameTree) }})*
"\\)" {{ return res }}
rule Node: ";" {{ res = [] }}
(Property {{ res.append(Property) }}
)+ {{ return dict(res) }}
rule Property: PropID {{ res = (PropID, []) }}
("\\[" ValueType "\\]" {{ res[1].append(ValueType) }}
)+ {{ return res }}
rule ValueType: Number {{ return int(Number) }}
| Real {{ return float(Real) }}
| Color {{ return Color }}
| Move {{ return (Move[0].islower() and ord(Move[0])-96 or ord(Move[0])-64, Move[1].islower() and ord(Move[1])-96 or ord(Move[1])-64) }}
| Text {{ return Text }}
| '' {{ return None }}
|
