21 lines
659 B
ANTLR
21 lines
659 B
ANTLR
grammar ptml;
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root : tree+ EOF;
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tree : internal_node '{' (action_sign|tree)+ '}' ;
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internal_node : 'sequence' | 'selector' | 'parallel' Integer ;
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action_sign : ('task'|'cond') Names '(' action_parm? ')';
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action_parm : (Integer|Float|boolean) (',' (Integer|Float|boolean))* ;
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// var_decls : var_type Names ;
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// var_type : 'int' | 'float' | 'bool' | 'string' ;
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boolean : 'True' | 'False' ;
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Names : [a-zA-Z_][a-zA-Z_0-9]* ;
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Integer : '-'?[1-9][0-9]* | '0' ;
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Float : [0-9]+'.'[0-9]* | '.'[0-9]+ ;
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// comments
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LINE_COMMENT : '//' .*? '\r'?'\n' -> skip ;
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// useless
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WS : [ \t\u000C\r\n]+ -> skip ;
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