Re: [xsl] breaking up XML on page break element

["Imsieke, Gerrit, le-tex gerrit.imsieke@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

I tackle it by what I call bupward projectionb:

When processing the top-level element, do a for-each-group of all 
descendants that are terminal nodes (those without children), with a 
group-starting-with at the splitting points.

For each group, process the book (or the HTML body, or whatever common 
ancestor there is) once in another mode, with a tunneled parameter 
'restricted-to' that contains, for each group, the terminal nodes and 
their ancestors.

When processing each group, for each node that you encounter, test 
whether the node is contained in the tunneled variable (using 
intersect). If it is, reproduce the node and continue in this mode, if 
it isnbt contained, do nothing.

There may be an option to discard or to reproduce the splitting elements.

Examples for this technique are in 
https://subversion.le-tex.de/common/evolve-hub/evolve-hub.xsl, modes 
hub:split-at-tab and hub:split-at-br

They are a bit more complex than your case because they split paragraphs 
that may contain tables or footnotes that in turn can contain other 
paragraphs. I introduced the function hub:same-scope($splitting-element, 
$containing-element) to split only at splitting elements that are 
contained within the paragraph that should be split, rather than in a 
paragraph that is contained in a footnote or table cell that is somehow 
contained in the given paragraph.

I might prepare a synthetic standalone example if anyone is interested, 
and furthermore on the condition that interested parties root for 
Germany instead of France today.

Gerrit

On 04.07.2014 16:43, Geert Bormans geert@xxxxxxxxxxxxxxxxxxx wrote:
> Hi all,
>
> Here is a fun one I thought I could share
>
> I have a nicely nested XML (a bit TEI like)
> and markers for page breaks can happen everywhere in the document (as
> empty elements)
>
> Now I want to break the document per page, reconstructing the structure
> So in a first step, I want to isolate the pagebreak to the highest level
>
> <book>
> <title>...</title>
> <section>
> <para>aaa<pb/>bbb</para>
> </section>
> </book>
>
> to become
>
> <book>
> <title>...</title>
> <section>
> <para>aaa</para>
> </section>
> <pb/>
> <section>
> <para>bbb</para>
> </section>
> </book>
>
> Bearing in mind I need a generic solution
> and pagebreaks can happen at every level
>
> Any thoughts?
> I am not looking for code, just curious on how people would attack this
>
> Thanks
>
> Geert

--
Gerrit Imsieke
GeschC$ftsfC<hrer / Managing Director
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