Subject: Re: [xsl] Designing streamable XPath expressions From: Dimitre Novatchev <dnovatchev@xxxxxxxxx> Date: Sun, 5 Jan 2014 09:22:37 -0800 |
Hi Roger, Seems OK. You missed a closing "]" on Slide 5 :) Oh, and BTW, do you think this is streamable: text()[1] Maybe the Spec. says "yes", but I don't believe so. Cheers, Dimitre On Sun, Jan 5, 2014 at 2:24 AM, Costello, Roger L. <costello@xxxxxxxxx> wrote: > Hi Folks, > > Suppose you want to count the <head> elements within the <section> elements. > > You might use this simple XPath expression: > > count(//section/head) > > However, that has a subtle problem when used in a streaming program. > > I created a few slides that describe the problem, as well as the solution: > > http://xfront.com/Streamable-XPath-expression.pptx > > /Roger > -- Cheers, Dimitre Novatchev --------------------------------------- Truly great madness cannot be achieved without significant intelligence. --------------------------------------- To invent, you need a good imagination and a pile of junk ------------------------------------- Never fight an inanimate object ------------------------------------- To avoid situations in which you might make mistakes may be the biggest mistake of all ------------------------------------ Quality means doing it right when no one is looking. ------------------------------------- You've achieved success in your field when you don't know whether what you're doing is work or play ------------------------------------- To achieve the impossible dream, try going to sleep. ------------------------------------- Facts do not cease to exist because they are ignored. ------------------------------------- Typing monkeys will write all Shakespeare's works in 200yrs.Will they write all patents, too? :) ------------------------------------- I finally figured out the only reason to be alive is to enjoy it.
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