1*16467b97STreehugger Robot 2*16467b97STreehugger Robotgrammar t058rewriteAST62; 3*16467b97STreehugger Robotoptions {language=JavaScript;output=AST;} 4*16467b97STreehugger Robottokens {BLOCK;} 5*16467b97STreehugger Robota : x=ID (y=b)? -> ($x $y)?; 6*16467b97STreehugger Robotb : ID ; 7*16467b97STreehugger RobotID : 'a'..'z'+ ; 8*16467b97STreehugger RobotWS : (' '|'\n') {$channel=HIDDEN;} ;