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You might want to throw in a reverse sort there. It was not in the spec, but it may happen that someone will want to do one substitution on "foo" and another on "foobar". Since Perl's REs are DFAs rather than NFAs this is not going to work unless in the RE you see foobar before foo.,,

In reply to Re (tilly) 2: hashes in regexes by tilly
in thread hashes in regexes by DeusVult

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