From: Brian Candler <B.Candler@...>
Date: 2004-10-09T23:35:07+09:00
Subject: Re: [ANN] ndb Object-Relational Mapper

On Fri, Oct 08, 2004 at 11:29:45PM +0900, George Moschovitis wrote:
> ps: I would really like to have a look at your xpath->sql translator.

The code isn't there for processing XPATH queries, but I have documented how
it could be done.
  http://www.linnet.org/software/zml/zml-20041009.tgz
and see README.path

The code is really just a proof-of-concept, but is functional to the point
of being able to:
- spool in XML documents/fragments to a SQL database
- spool out SQL to the original XML, either whole documents or any subtree

There are some helper classes which might be useful elsewhere. e.g. an
REXML::StreamParser generates a stream of method calls tag_start / tag_end /
text etc; I have objects which can convert such a stream of method calls
back into the source XML, or into a tree of REXML::Element objects.

It would have been nice if REXML provided such objects itself, but I won't
raise this with the machine-gun-wielding author :-)

Regards,

Brian.