[ docbook-Bugs-880097 ] slides navigation bug

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Bugs item #880097, was opened at 2004-01-19 14:09
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Category: DocBook XSL
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Ian Schneider (ianschneider)
Assigned to: Nobody/Anonymous (nobody)
Summary: slides navigation bug

Initial Comment:
I used xxe to create a sample slide show. I tried using
the various formats, table, frames, etc. but each
slideshow showed the same problem with the previous
button in the top and bottom navigation bar. After some
testing, it appears to be an xsltproc problem (though
there appears to be an easy fix), but I thought I'd
drop a line here as well.

Each alternating foil, following the first, has the
previous button pointing back to the index, not the
previous slide.

Narrowing down the source of the problem, I found this
bit of xpath in slides-common.xsl under the template
for foil

select="(preceding-sibling::foil[1]
                                    |parent::foilgroup[1]
                                    |/slides)[last()]"

If the "/slides" axis is removed from the union, all
appears to be well and my slides function as it seems
they should.

Attached are an example document and xsl which can
duplicate the problem and demonstrate the alternating
behavior of the last() predicate when applied to the
union in question.

I'm using slides-3.30, libxml2-2.6.3, and libxslt-1.1.1

Thanks kindly,
Ian



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