Re: [evolution-patches] Support for XML in the save-calendar plugin

[Philip Van Hoof <spamfrommailing freax org>]

On Tue, 2004-12-14 at 09:18 +0800, Not Zed wrote:
> On Tue, 2004-12-14 at 00:13 +0100, Philip Van Hoof wrote: 
> > On Mon, 2004-12-13 at 17:50 -0500, Joe Shaw wrote:
 
> > > You might be interested in the ical RDF work here:
> > > 
> > >         http://www.w3.org/2002/12/cal/
> > >         
> > > It's similar to the standard RFC 2445 syntax and yours here so I don't
> > > think it'd be significantly more work, and would probably be preferable
> > > to creating a new syntax.

> > Indeed. It's not hard to support this RDF-format using the xml-format.c
> > implementation I've created.

> Would it be better not to add another format though?  I think it would
> be unwise to add more subtle variations particularly if an existing
> standard will cover it. 

Yes. Therefor I think it's wise to remove the xml-format.c after
converting to the RDF-format is completed.

> > I will probably implement it in rdf-format.c (and I will probably just
> > remove xml-format.c as with this rdf-format it's no longer really
> > interesting).

See :-)

> I'm not a calendar developer, but i wouldn't think it would make sense
> to support an interchange format internally.  

Okay. But is support for exporting to this format desired or is also
that a bad idea? In my opinion you are right when you say that
supporting multiple formats internally is a bad idea. But as a user I'd
like the possibility of exporting my Evolution-data to other formats. 

Using the new plugin-architecture, you can delegate that part of
Evolution-development to non-core development. Making it (more)
maintainable to have such a large set of features.

> They serve very different purposes.  We have 'importers' that should
> import whatever this thing exports though, but the current importer
> framework is messy.


> I'd also highly recommend not creating your own xml format - if one
> exists that will serve the purpose.  I don't know, for example, what
> kolab uses for its xml format, and if it is just another
> representaiton of icalendar itself.

Agreed. The current xml-format.c is of course just a tryout. I will
probably convert it's format to RDF sooner or later. If such export
functionality is desired of course. 


-- 
Philip Van Hoof, Software Developer @ Cronos
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