Subject: Re: [xsl] XSLT Hello World - outreach From: David Rudel <fwqhgads@xxxxxxxxx> Date: Fri, 28 Mar 2014 22:31:46 +0100 |
On Fri, Mar 28, 2014 at 10:02 PM, Brian Chrisman <brchrisman@xxxxxxxxx> wrote: > > Okay... is it me, or is this one of those exceedingly rare cases where > you actually want the 'A!=B' test instead of 'not(A=B)'? > ie, test="*[1]/@audience!=*/@audience" would tell us when something in > this case is 'not' to be promoted? > > - Brian > Oops... I just realized that, from a performance standpoint, your solution is likely to be faster because when checking $seq1 != $seq2, the processor is likely to stop after it finds the first non-homogeneous term. It may do the same when checking count(distinct-values(@audience))=1 as well, but perhaps less likely. More importantly, I wanted to introduce you to the distinct-values() function in case you were unaware of its application in this context. -David -- "A false conclusion, once arrived at and widely accepted is not dislodged easily, and the less it is understood, the more tenaciously it is held." - Cantor's Law of Preservation of Ignorance.
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