note
JavaFan
<blockquote><em>Perhaps you should compile this once with the qr operator instead of every time you use it?</em></blockquote>
No, he shouldn't. That *slows* down the program (although probably not measurable). I see $long_regex only be used twice, and in both cases it's interpolated. There's no point in making the compile-stringify round trip, if all you're needing is the string form. (On top of that, after the roundtrip, the resulting string is larger).
<p>
Using qr to avoid additional compilation only makes sense if you don't interpolate, and use it in different places.
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