Peter Otten __peter__ at web.de
Fri Jan 15 04:43:52 EST 2016

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Charles T. Smith wrote:

> while ($str != $tail) {
>     $str ~= s/^(head-pattern)//;
>     use ($1);
> }

For those whose Perl's a little rusty: what does this do?
A self-contained example might also be useful...

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