Re: [FWP] Constants as array refs

[Ronald J Kimball <rjk@linguist.dartmouth.edu>]

On Thu, Mar 23, 2000 at 04:32:51PM -0500, John Porter wrote:
> Jeff Pinyan wrote:
> > Yay.  I feel like I helped make a difference today. :)  Oh, and see my
> > post about sorting, Schwartzian transforms, and Guttman-Rosler transforms,
> > at perlguru.com: http://www.perlguru.com/forum/Forum2/HTML/000208.shtml
> 
> I'd like to know how the meme got started, of calling that technique
> "the Guttman-Rosler Transform".  I notice Greg B. called it that on
> PerlfaqPrime, too.
> 
> As has been mentioned many times in the past, there is no transform
> there.  In fact the technique is so basic -- much more so than the
> ST -- that it does not need a proper name.  However, if one insists
> on attaching someone's name(s) to it, it should at least include
> Michal Rutka.

It seems to be as much a transform as the Scwartzian transform, which also
uses map sort map.

The 'Guttman-Rosler' tag is due to Uri and Larry's presentation on their
Sort::Records module, which allows for sorting of arbitrary data using
Perl's built-in sort.

http://www.hpl.hp.com/personal/Larry_Rosler/sort/

Whether 'Guttman-Rosler' should be applied to the simplest case (which Uri
and Larry would call a "trivial sort") is a good question.

Ronald

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