toString: function () {
return (this.left.op ? '(' + this.left + ')' : this.left) + ' ' +
this.op.toUpperCase() +
- (this.modifiers.lenght > 0 ? '/' + this.modifiers.join('/') : '') +
+ (this.modifiers.length > 0 ? '/' + this.modifiers.join('/') : '') +
' ' + (this.right.op ? '(' + this.right + ')' : this.right);;
},
toXCQL: function (n) {