Coincidentally, I just wrote a module the other day that uses source-filtering to implement the Ksh's select loop in Perl, plus more! I'm going on vacation very shortly, but when I return in about two weeks, I'll be posting it to the CPAN.

It supports these obvious invocations:

select (LIST) { block; }

select $var (LIST) { block; }

select my|local|our $var (LIST) { block; }
[download]

I've also just about got an interactive map-filtering style working too:

LIST2 = select {block;} LIST;
[download]

I figure it doesn't make any sense to support the following, because it just reduces to map():

LIST2 = select /expr/, LIST;
[download]

I'm glad other people are thinking about this, and I'll look forward to sharing my code with you soon!

Tim Maher, "yumpy"

Consultix
tim@teachmeperl.com

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