So, it's a feature that has been available in every high-order language since forever, except with more line noise. Typical Perl! http://www.ai.mit.edu/project

So, it's a feature that has been available in every high-order language since forever, except with more line noise. Typical Perl! http://www.ai.mit.edu/projects/iiip/doc/CommonLISP/HyperSpec/Body/fun_sortcm_stable-sort.html http://www.ai.mit.edu/projects/iiip/doc/CommonLISP/HyperSpec...