eval-ing the resulting string should be sufficient (\x{....} and \x.. is how you can specify characters in a literal double quoted string (where .. are hex numbers)).

Update: maybe I should add that, depending on security context (e.g. if someone malicious could have modified the string returned from nice_string() in the meantime), you might not want to blindly eval an arbitrary string...  In that case, you could extract the \x{....} sequences etc. using a regex, and convert the chars individually back to unicode with pack("U", hex(...))

In reply to Re: Escaping Wide Characters by almut
in thread Escaping Wide Characters by mobiusinversion

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