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From "Lewis, Andrew J" <Andrew.Le...@jbosc.ksc.nasa.gov>
Subject RE: A Transformer in progress....
Date Fri, 10 May 2002 20:29:54 GMT
I'll take a look at it...thanks...

> ----------
> From: 	Nicola Ken Barozzi[SMTP:nicolaken@apache.org]
> Reply To: 	cocoon-dev@xml.apache.org
> Sent: 	Friday, May 10, 2002 8:28 AM
> To: 	cocoon-dev@xml.apache.org
> Subject: 	Re: A Transformer in progress....
> 
> From: "Stefano Mazzocchi" <stefano@apache.org>
> 
> > "Lewis, Andrew J" wrote:
> > >
> > > > I'm working on a Transformer that processes specifically text nodes
> and
> > > > using regular expressions, wraps matched portions of a node in a
> tag.
> I'm
> > > > really just getting started on it - I have the basics working, but
> still
> > > > need to be able to specify the rules in an external file, etc. It
> has
> been
> > > > an interesting excercise so far, and the intent is to be able to
> detect
> > > > things like dates, currency amounts, and units of measure in a text
> node,
> > > > and mark them for later processing.
> > > >
> > > > I am planning on allowing rules to be specified in an external file
> > > > identified at componenet configuration, or directly in the component
> > > > configuration. I am also planning on allowing the "replacement" to
> be
> a
> > > > complete fragement with groups from the matched expression
> referencable
> > > > (and replaced) in etiher attribute values or text nodes. (currently
> I
> > > > merely enclose the match in a tag).
> > > >
> > > > Before I move on, has anyone else already done something like this?
> Does
> > > > anyone (other than me) think it would be useful?
> > > >
> > > > Ok...now to my real question...
> > > >
> > > > Does anyone know of existing code that I can use to track and
> identify
> if
> > > > the current point in the SAX stream matches a simplified XPath
> expression?
> > > > I would really like to apply expression rule set based on an XPath
> subset.
> > > >
> > > > Any comments or suggestions?
> > > >
> > > > Thanks!
> >
> > I know that Simon wrote a SAX filter along the lines of this, right
> > Simon?
> >
> > I think it's going to be piece of cake to take his stuff and make it a
> > cocoon transformer.
> 
> There is a Transformer (currently broken :-( ) in the scratchpad that
> tried
> to do something along these lines. It worked in an early Cocoon Alpha
> release, and quick attempts to have it working again weren't sufficient.
> Look at Chart2SvgTransformer.java in scratchpad.
> 
> It's there waiting for:
> 1 someone to fix it
> 2 someone to write something better
> 
> Which means.... that I can't wait to use your Transformer instead! :-)
> 
> --
> Nicola Ken Barozzi                   nicolaken@apache.org
>             - verba volant, scripta manent -
>    (discussions get forgotten, just code remains)
> ---------------------------------------------------------------------
> 
> 
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