[FWP] joins and golf

["David L. Nicol" <david@kasey.umkc.edu>]

Uri Guttman wrote:

> how many hours did that take you? you should enter a team in the perl
> golf tournament at tpc4.

around three hours, i think.  There were a lot of intermediate
iterations
and references to manual pages.  Several versions contained a join on $"
before I realized what the point of $" is.

I am not at this time planning on attending tpc4, although anything is
possible I suppose.

I'm now seeing lots of join
situations as candidates for the following treatment:

sub myjoin($@){
	local $" = shift;
	"@_";
};

Benchmarks anyone?

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