New grouping feature in XSLT 4: break-when

Reading
https://qt4cg.org/branch/master/xslt-40/Overview-diff.html#xsl-for-each-group
I have for the first time seen the new feature of
for-each-group/@group-when.

Trying to understand it I wonder whether it arose from some Slack or
GitHub discussion I have missed. Any pointers?

Is it an attempt to introduce some of the features of XQuery's windowing
clause and relevant variables into XSLT 4?

Received on Monday, 14 December 2020 14:46:34 UTC