[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Co-operating with Architectural Forms
> > I think it was Arpan Desai from Microsoft who talked about a subset > > of XPath suitable for use in streaming applications at XML 2001. If > > software had a priori knowledge of the xpaths, then it stands a good > > chance of recognizing when streaming can be used and falling back to > > tree mode only if necessary. > > 1) Is this available anywhere? > > 2) Has anybody published a similar subset for XSLT? It's often been proposed that there should be a "streaming subset" of XSLT (in fact, the idea appears in conjectural form in the published XSLT 2.0 requirements). I personally don't think it's viable. If you want to transform a document in a single pass, then you need to remember things as you read them for use later. The transformer therefore needs working storage, it can't be purely functional as XSLT is. A streaming transformation language would be a useful thing but it wouldn't be a subset of XSLT. Mike Kay
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