grammar t053heteroT10; options { language=JavaScript; output=AST; } @header { function V() { V.superclass.constructor.apply(this, arguments); }; org.antlr.lang.extend(V, org.antlr.runtime.tree.CommonTree, { toString: function() { return this.getText() + "<V>"; } }); } a : ID INT -> ^(ID<V> INT) ; ID : 'a'..'z'+ ; INT : '0'..'9'+ ; WS : (' '|'\n') {$channel=HIDDEN;} ;