Unfortunately, there's a limit to how much data can appear in alterations and still be optimized into a trie in 5.10.0. I think you are within that limit, but kruppy will not be. Try your benchmark again with 10000 strings.
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In reply to Re^5: Efficient regex matching with qr//; Can I do better? (Benchmark) by ysth
in thread Efficient regex matching with qr//; Can I do better? by kruppy

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