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I'm more interested in elegance (and maintainability) than in the optimization. I rewrote all of the regexps in Date::Manip to use named buffers, and I'm not interested in going back to numbered buffers.

As an example, in one place in Date::Manip, I match a set of related regular expressions that match various date strings, and there are 23 different possibilities containing 65 different matches between them (NOT all in the same order), so manually counting all of the match positions, while doable, basically renders that code static and unmaintainable... a simple change to the regexps leads to a very tedious and error-prone piece of work to maintain it. I think that's the worse case... but there are a several other cases that are almost as bad.

That said, I want as much optimization as I can, within that constraint, and that's the basis for my question.


In reply to Re^6: Speeding up named capture buffer access by SBECK
in thread Speeding up named capture buffer access by SBECK

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