IPP> PRO: Protocol Examples

IPP> PRO: Protocol Examples

Carl Kugler kugler at us.ibm.com
Wed Nov 4 14:17:10 EST 1998


Tom said:
> I would say yes.  The Protocol document should be fixed so that all 
> 
> keyword values are all lower case.
> 
> 
> I checked with the charset registry and the preferred MIME name is
> "US-ASCII".
> 
> Fortunrately, it also say up front:
> 
> 
> <bigger>The character set names may be up to 40 characters taken from
> the
> 
> printable characters of US-ASCII.  However, no distinction is made
> 
> between use of upper and lower case letters.
> 
> </bigger>
> 
> 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: 
> 'client-error-bad-request'
> 
> 
> Or are we expecting servers to convert keywords to lower case before
> 
> processing them?
> 
> 
> This could be an interoperability problem if we don't all agree.
> 
> 
> Tom
> 
> 
> 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
> Protocol
> 
> >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
> as
> 
> >attributes-charset and attributes-natural-language.  Is this apparent
> conflict
> 
> >an error?
> 
> >
> 
> >  -Carl Kugler
> 
> >
> 
> >
> 
> 



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