note QM Sticking my nose in where it doesn't belong... <p> If I understand it right, one of the points of [Limbic~Region|L~R]'s [node://492651|original post] was that the comparison function can be defined by the user, and passed in as a coderef. If I understand your post, you seem to be saying that the same end result can be achieved through OO and classes. <p> But I'm fuzzy on what you suggest should happen in OO. If the class has a compare method that doesn't work for my current problem, do I subclass it and create my own <code>maxstr</code>? Do I append to the class my own method? <code> ... package SomeClass; sub my_compare {...} ... </code> What if each object needs a unique compare function? What if these functions aren't known at compile time? What if there are so many functions that it's difficult to give them all unique and useful names? <p> I'm not sure that any of these questions are easier or harder to answer in OO vs. closures. <div class="pmsig"><div class="pmsig-294463"> <p>-QM<br /> --<br /> Quantum Mechanics: The dreams stuff is made of </div></div> 492651 494182