Mystery files in the XML Schema test suite (.imp, .red, .inc, .scm, etc.)

In the distributed version of the XML Schema test suite,
various subdirectories of msData have a variety of files
with names like addB087.imp, addB094.red, etc.

As far as I know, nothing in the test suite definition or
in the relevant specs requires XML instance test documents
to be given filenames ending in .xml, or schema documents
to be given names ending in .xsd, but this caught my eye.
None of these documents appear to be mentioned in any of the
metadata files in msMeta, so I wonder:

   - What are they?
   - Are they needed for anything?  Or are they just
     artefacts of the tools originally used to produce
     the ms tests?
   - Would it make any difference (for better or worse) if
     the test suite strove for the state of having no documents
     in the xxxData directories except documents referred to
     by one or more entries in the metadata?

There are some other unexpected extensions in some other
directories, but the ones in msData are the most numerous.

Enlightenment would be welcome.

-- 
****************************************************************
* C. M. Sperberg-McQueen, Black Mesa Technologies LLC
* http://www.blackmesatech.com
* http://cmsmcq.com/mib
* http://balisage.net
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Received on Saturday, 19 June 2010 21:48:30 UTC