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in reply to Re^3: Special character not being captured
in thread Special character not being captured

right, UTF-8 input wasn't decoded, string of octets passed to first_alpha, 1st octet i.e. \xC3 was returned and should have become hash key, but somehow it is Replacement Character. But then, dump as shown (hash of arrays) can not be alpha_hash output, so it's not really SSCE, can only guess.