Re: [Tclxml-users] fast xml parsing into a tclList

[Steve B. <Ste...@zv...>]

Mischa Diehm wrote:
> I was very happy to find the TclXml package with it's nice
> features. I have to parse XML and get the structure back in a
> tclList for further processing. I used callbacks to get the job done
> and it worked perfectly well. But if I get big XML-Structures (like over
> one MByte) the parsing  takes way too much time. After checking the
> documentation and trying to get my calls lighter ( as far as my knowledge
> goes )
> and some checks on what causes the speed loss I realized that it is due to
> the
> parser itself.

That's perfectly understandable if you were using the
Tcl implementation of the parser.  However, TclXML already
has a wrapper for Expat - did you try that?

> I wrote a little package xml2tcl in C using the C-expat-1.95.0
> implementation.
> On a PIII with 863Mhz I can now parse about 6 MByte/Sec which is fast
> enaugh
> for my use. Is there any interest for this here and where can I put the
> source or
> the shared lib?

As I said, TclXML already has a wrapper for Expat - a very
old version heavily modified by Ajuba.  It would be very
helpful to update the TclXML/expat code to use the version
that's now on SourceForge (as I recall that is the
expat-1.95.0 version that you mention).

Submit the patches on the TclXML SF site and I will
incorporate them.  If you are willing to be responsible
for ongoing maintenance then I'll add you as a developer
to the project.

Cheers,
Steve Ball

-- 
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