I C, I suspect. Even the brute-force method of shifting a bit at a time into a register, masking, & comparing would surely beat a regexp engine. Worst case, that's a shift, bitwise or, bitwise and, & a branch if not 0. I'm sure there are much better algorithms, too.

In reply to Re^3: What is a "big job" in the industry? by Anonymous Monk
in thread What is a "big job" in the industry? by punch_card_don

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