> Probably an aliasing mechanism is required for no other reason than the IANA 
>registry lists many aliases with each official name. In many cases the aliases are 
>what is used in real life rather than the supposedly official name.

Yup.  /^(?:ISO\W?)?(?:8859|Latin)-?1$/i

-- 
$jhi++; # http://www.iki.fi/jhi/
        # There is this special biologist word we use for 'stable'.
        # It is 'dead'. -- Jack Cohen

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