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Re: [xsl] What's the best feature in XSLT 3?

2019-10-03 13:19:31
On Thu, Oct 03, 2019 at 04:59:28PM -0000, Liam R. E. Quin 
liam(_at_)fromoldbooks(_dot_)org scripsit:
While i was preparing for a course on XSLT 3 later this month, i
wondered whether other people would have favourite features that were
introduced in XSLT 3. I know i do.

What do you find most useful? Or like the best?

Maps.  I find maps are hands-down the single most useful thing in XSLT 3. (Even
if that's technically 3.1.)

xsl:mode can clearly do much more than I use it for, but the one-line
identity template version is a boon to multi-pass processing.

The general... compactness of expression?  I'm not sure what to call it.

<xsl:variable as="xs:integer" name="splitPos" select="min($kids[label = 
$labelKeys] ! index-of($kids, .))" /> 

is certainly *possible* in XSLT 1.0, but I'm pretty sure I couldn't
write it like that.  Possibly better phrased as "it's been awhile since
I was annoyed by the lack of function".

-- Graydon
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