keyword values are all lower case.
I checked with the charset registry and the preferred MIME name is
Fortunrately, it also say up front:
<bigger>The character set names may be up to 40 characters taken from
printable characters of US-ASCII. However, no distinction is made
between use of upper and lower case letters.
so IPP is ok in forcing the client to make these keywords be all lower
case for simplicity in the server.
Presumably, the server should reject a client that passes in keywords
with uppercase in them, using the error code:
Or are we expecting servers to convert keywords to lower case before
This could be an interoperability problem if we don't all agree.
At 11:46 04/06/1998 PDT, Carl Kugler wrote:
>According to MOD, "IPP requires all lower case" for 'charset' and
>'naturalLanguage' (refer to sections 4.1.9 and 4.1.10). However, the
>Examples in Appendix A of MOD show mixed-case values, e.g.: "en-US" and
>US-ASCII", for attributes of type 'charset' and 'naturalLanguage' such
>attributes-charset and attributes-natural-language. Is this apparent
> -Carl Kugler