1*16467b97STreehugger Robotgrammar t057autoAST22; 2*16467b97STreehugger Robotoptions {language=JavaScript;output=AST;} 3*16467b97STreehugger Robots : a ; 4*16467b97STreehugger Robota : atom ('exp'^ a)? ; 5*16467b97STreehugger Robotatom : INT ; 6*16467b97STreehugger RobotID : 'a'..'z'+ ; 7*16467b97STreehugger RobotINT : '0'..'9'+; 8*16467b97STreehugger RobotWS : (' '|'\n') {$channel=HIDDEN;} ; 9