Subject: Re: [xsl] Filtering, xslt 2.0 From: "Liam R. E. Quin liam@xxxxxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Mon, 31 Oct 2022 18:41:44 -0000 |
On Mon, 2022-10-31 at 17:50 +0000, Graydon graydon@xxxxxxxxx wrote: > > (I believe I have found where in the specs it discusses this before, implicit existential quantification is the phrase to look for. I think in the spec it's actually now, [[ General comparisons are existentially quantified comparisons that may be applied to operand sequences of any length. The result of a general comparison that does not raise an error is always true or false. ]] https://www.w3.org/TR/xpath-31/#id-general-comparisons This is the XPath 3.1 prose, but this is also in XPath 2; in XPath 1 = works the same way but on node sets, so you can write boy[sock = 'blue'] and get true of false regardless of how many sock elements there are. Or, //table[.//td > 600] to find any table with one or more td elements having a numeric value greater than 600. liam -- Liam Quin,B https://www.delightfulcomputing.com/ Available for XML/Document/Information Architecture/XSLT/ XSL/XQuery/Web/Text Processing/A11Y training, work & consulting. Barefoot Web-slave, antique illustrations: B http://www.fromoldbooks.org
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