You probably meant to say $string !~ m/[^0-9a-f]/i. Here you specify the values that are ok and everything else is forbidden.

Update Oops! I fixed the regex so that '!' became '^'. I've been reading too much VB-alike docs lately.

Fun Fun Fun in the Fluffy Chair

In reply to Re: Validating Hex Numbers by diotalevi
in thread Validating Hex Numbers by HiFoo

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