SAXON (Was: Re: A weaker XSL?)

Clark Evans clark.evans at
Fri Feb 5 16:46:09 GMT 1999

Discussion about a weaker version of XSL where
sequential access is a sufficient condition
for processing and random access is not
the necessary condition.

Michael.Kay at wrote:
> > How do I build a table of contents that is output BEFORE the document
> > without reading the whole input before I start to output?
> You can't, and that isn't my objective. What you can do, and what I
> currently do with SAXON, is to perform a single serial pass of the input
> document that simultaneously generates a TOC and the main rendered document
> on two separate output streams, then merge these together for presentation.
> This is far more efficient with a large document than building the entire
> document tree in memory or scanning it twice.

Stream processing!  This is what I initially assumed XSL did.  

It's so nice to hear that I'm not on another planet.  
It's about time we considered the case when an XML 
document is a sequentially accessed stream.  Wonderful!

Michael, how do I get SAXON? I'm excited.  

:) Clark

flyweight n : 1. the most confusing part of 
the otherwise wonderful Design Patterns book  
2. when everything looks like a nail

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