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List:       kde-core-devel
Subject:    Re: QDom as an alternative to KConfig?
From:       Richard Moore <rich () ipso-facto ! freeserve ! co ! uk>
Date:       2001-04-03 16:21:03
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Harri Porten wrote:
> 
> aleXXX wrote:
> >
> > Maybe something could be done about the files which are parsed by every app:
> > kdebugrc, kdegloabls, kstylerc, index.desktop of the icon themes.
> 
> Yes. Following the ksyscoca principle: a binary cache that is only
> refreshed if the original file was modified meanwhile. Any obstacles I
> oversee ?

I've been working on something related to this - a standard binary
representation for XML. It's designed to allow it to support the
standard XML APIs (DOM and SAX) but to use a very compact and easy
to parse data stream. It has all the usual XML features (tags, attrs,
DTDs, namespaces etc.) but much lower overhead (it uses a variable
length id->name mapping so it scales nicely even to big DTDs).

Ultimately I'm planning to make it possible to compile a DTD to a
known BTD to provide even more powerful features (and to remove
the need for symbol storage if the DTD is available at both the
source and destination locations). I don't have this part
implemented yet.

As well as being able to support things like an XML Sycoca I think
this could give a big performance increase to XML mechansims like
XMLRPC. Currently I have some basic code in Java and C++, and the
beginning of a white paper for the format. If people are interested
I can stick it online somewhere.

Cheers

Rich.
ps. My machine is now working again!

> 
> Harri.

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