Re: [Ltru] Re: Registry change of the day: prefix with more than one subtag

Doug Ewell scripsit:

> What information is available in either RFC 4646(bis) or in the Registry 
> that would help software to make this decision?  Does a prefix of 
> "language with no variant" mean that the variant should not be used in 
> the presence of any other variant?  How does one determine that 
> "en-scouse-fonipa" is OK while "el-monoton-fonipa" is not?

I think there is no hope of getting this right automatically.  The
Prefix: field gives some guidance, but even it is only a SHOULD.
That said, people who use multiple prefixes probably wouldn't bother
unless they know what they are doing.  Indeed, the same can be
said of most kinds of generativity.

-- 
John Cowan    cowan@ccil.org    http://ccil.org/~cowan
   There was an old man                Said with a laugh, "I
     From Peru, whose lim'ricks all      Cut them in half, the pay is
       Look'd like haiku.  He              Much better for two."
                                             --Emmet O'Brien

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