antlr-3.4/runtime/JavaScript/tests/functional/t049treeparserf.g

grammar t049treeparserf;
options {
    language=JavaScript;
    output=AST;
}
a : ID INT? -> ^(ID INT?);
ID : 'a'..'z'+ ;
INT : '0'..'9'+;
WS : (' '|'\\n') {$channel=HIDDEN;} ;