Subject: Re: [xsl] XSLT 2.0 courses? From: "Liam R. E. Quin liam@xxxxxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Fri, 18 Sep 2020 23:53:47 -0000 |
On Fri, 2020-09-18 at 19:31 +0000, Wendell Piez wapiez@xxxxxxxxxxxxxxx wrote: > Hi, > > In addition to Liam's list I think there are a couple more vital > features > one needs to get a taste of in XSLT 2.0 or XSLT 3.0, if one has been > subsisting on an XSLT 1.0 diet: > > * <xsl:for-each-group> and its uses > * temporary trees - > * regex support in functions and xsl:analyze-string > * tunnel parameters? Yeah, those are all huge, although i think easier to learn than things like ($a, 'none')[1], which are startling because XSLT 1 didn't have sequences. For those wondering, ($a, $b, $c, ...)[1] returns the first non-empty non-false item out of $a, $b and $c, so it's a shortcut for <xsl:sequence select="if ($a) then $a else $b" /> On regular expressions - it's huge, but it's also dangerous, as e.g. replace(price div 100, '\.\d*$', '') is not a good way to write math:floor(). An XSLT-3-from-scratch course could easily take a full week and be woefully incomplete. Or totally overwhelming. Or both. On the other hand, i try & include "don't be afraid of the specs" in the courses i teach, and then not cover every detail. So maybe it's possible. 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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