Subject: Re: [xsl] General rule for designing XPath expressions to return items in document order? From: John Lumley <john@xxxxxxxxxxxx> Date: Sat, 11 Jan 2014 14:09:17 +0000 |
For those of us who will not be attending XML Prague, how can we learn the streaming stuff that Michael and Alex will be presenting?I have been working on a static analysis tool that runs the streamability rules over an XSLT transform (and the associated XPaths) and displays the results in terms of a decorated tree where all the properties described in the rules (type, role, posture, sweep, etc...) have been calculated, and thus the /guaranteed streamability/ of templates determined.
Indeed. I think this is the topic of Abel Braaksma's talk at XML Prague: from what I've seen, I believe his aim is to show that the horrendously complex rules in the spec can be reduced for practical programming purposes to a few easily remembered rules of thumb. Let's wait and see.It remains to be seen I think how far just having a naive mental model >of the kind of things that ought to work in a streaming context will >lead to expressions that are in fact defined to be streaming in the spec >(or are streaming in the implementations).
-- *John Lumley* MA PhD CEng FIEE john@xxxxxxxxxxxx <mailto:john@xxxxxxxxxxxx> on behalf of Saxonica Ltd
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