Michael Smith wrote:

>But is that because it is impossible to come up with any mechanism
>that can programatically distinguish between the files? Or is it
>just that the current locating system does not provide any rule
>that can?

>
The former. You cannot tell from the initial file that I wish to constrain
<x>, in this instance, only to allow <y> children, when normally
<z> is allowed too.

>To me, this PI mechanism amounts to "throwing in the towel" and
>saying that a locating-rules mechanism capable of determining
>a schema association for a document by examining properties of the
>document is either:
>
>  - not possible; or
>  - not worth the effort of discussing if it might be possible

>
I claim "not possible". If this is my file:

<TEI>
  <teiHeader>....</teiHeader>
  <text>
     <body>
        <p>Hello world</p>
     </body>
  </text>
</TEI>

you do not know (cannot know?) that I plan to use the tei_drama schema
with it,
as opposed to the tei_prose. Its not a matter of examing the file, its a
matter of
reading intentions from my mind....

--
Sebastian Rahtz     
Information Manager, Oxford University Computing Services
13 Banbury Road, Oxford OX2 6NN. Phone +44 1865 283431

OSS Watch: JISC Open Source Advisory Service
http://www.oss-watch.ac.uk




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