Re: Kosher XSLT 3.0 numbering solution?

> On 1 Sep 2016, at 16:27, Liam R. E. Quin liam@xxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
>
> But surely it's not that hard to write a recursive template or function
> that finds the previous page break and adds one to it where needed?

Actually it's quite tricky if you want to have a function/template that both
returns a modified version of the source tree with new numbers inserted, and
also returns the latest number used. Returning two results using maps is
possible, but not easy.

Computing the numbers is ideally done by a fold operation that processes all
the nodes in the tree in document order, and XSLT 3.0 accumulators are
essentially syntactic sugar for such a fold operation.

Michael Kay
Saxonica