Subject: Re: [xsl] Usage of Asterisk in XPath expressions From: "Liam R. E. Quin liam@xxxxxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Fri, 22 Mar 2019 20:12:04 -0000 |
On Fri, 2019-03-22 at 13:33 +0000, Martin Honnen martin.honnen@xxxxxx wrote: > [...] > However, the other main reason that doesn't raise an error is that > ancestor-or-self::foo evaluates to the empty sequence in the context > of that document and that way the multiplication also evaluates to > the empty sequence. Yup, You're a star! :D As Mike Kay points out separately, itbs a problem when a language gets so terse that almost any string of puctuation has a meaning. With regular expressions i tend to write [(] and [)] because i can never remember in which sytaxes \(...\) is special, same with [{] braces [}]. There can be an efficiency overhead for doing this, but therebs a bigger efficiency overhead in time lost from a confused developer :) Similarly, avoid using XPath axis names as namespace prefixes :-) :-) Liam -- Liam Quin, https://www.delightfulcomputing.com/ Available for XML/Document/Information Architecture/XSLT/ XSL/XQuery/Web/Text Processing/A11Y training, work & consulting. Web slave for vintage clipart http://www.fromoldbooks.org/
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