[sc34wg3] CTM - prefix declaration

[Robert Barta]

On Tue, Jan 29, 2008 at 11:58:19AM +0100, Lars Marius Garshol wrote:
> >  %prefix a http://example
> >  %prefix b http://example
> >
> > should be harmful?
> 
> You've misread. I did the same thing at first. The above is not  
> illegal, according to N0975, but the following is:
> 
> %prefix a http://example.com
> %prefix a http://example.org

Ah, thanks!

--

So, if I import a CTM file which happens to use the same prefix as I
did, I have to do a renaming? I thought that prefixes are purely
syntactic and are resolved at parsing time. So treating them local to
the file where they were defined in is not possible?

And to think now as an implementor, do I need to keep track of the
prefixes over the boundaries of the CTM files (streams), just to
detect that a double use is a violation? Isn't this a case of
"allowing it is much simpler than disallowing it"?

\rho