1*16467b97STreehugger Robotgrammar t057autoAST43; 2*16467b97STreehugger Robotoptions {language=JavaScript;output=AST;} 3*16467b97STreehugger Robota : A b=B b=B c+=C c+=C D {s = $D.text} ; 4*16467b97STreehugger RobotA : 'a' ; 5*16467b97STreehugger RobotB : 'b' ; 6*16467b97STreehugger RobotC : 'c' ; 7*16467b97STreehugger RobotD : 'd' ; 8*16467b97STreehugger RobotWS : (' '|'\n') {$channel=HIDDEN;} ; 9