[Docstring-develop] dps_visit.py - first pass at XML output

[Tony J I. (Tibs) <to...@ls...>]

As always, they're at:

   	http://www.tibsnjoan.co.uk/reST/dps_visit.py
   	http://www.tibsnjoan.co.uk/reST/test.py

The addition is an "xml" command line switch, which causes a (rather
nasty) emission of XML to the standard output. No attempt to process the
docstrings yet. No attempt to think about a nice schema for the XML,
either.

Note that this module now depends on the DPS module, since it imports
(its of) it. I fully intend to produce a separate module at some stage
which is useful *just* as an example of mining the relevant information
out of the AST - that should simply be a matter of stripping stuff out.

NB: Jeremy - do we believe the compiler module to work under 2.2a1? I
had a problem last night that I avoided by using an earlier version of
it - sorry, I don't have the exception stack to hand, and unfortunately
I don't have internet connectivity at home at the moment, so can't
download 2.2a2 (which, for all I know, may fix it). I'll try to research
more tonight, in case this is something not known about.

Tibs

--
Tony J Ibbs (Tibs)      http://www.tibsnjoan.co.uk/
Give a pedant an inch and they'll take 25.4mm
(once they've established you're talking a post-1959 inch, of course)
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