Re: [xslt] ?Bug/Mystery - Xpath last() function - libxml2 2.6.16 r2

[Mike Trotman <mike trotman datalucid com>]

There is only one bug here (not 2 as I earlier thought)
I have a typo in my script - which is why BOTH values change to correct 
when line #20 is changed.

After correction - error output  is then:
<output>
<span>Previous Table (ID=3)</span>
<span>Previous TABLE (ID=2)</span>
<span>Previous TABLE (ID=3)</span>
</output>

Apologies for the rushed example.

Mike

Mike Trotman wrote:

> I have installed latest versions on FC2.
> Problem still persists - short self-contained example files attached.
>
> [miket www BUGS]$ xsltproc -V
> Using libxml 20618, libxslt 10113 and libexslt 811
> xsltproc was compiled against libxml 20618, libxslt 10113 and libexslt 
> 811
> libxslt 10113 was compiled against libxml 20618
> libexslt 811 was compiled against libxml 20618
> [miket www BUGS]$ rpm -q libxml2 libxslt
> libxml2-2.6.18-1
> libxslt-1.1.13-1
> [miket www BUGS]$ ls -l
> total 12
> -rw-rw-r--  1 miket miket  165 Mar 20 17:49 error_output.xml
> -rw-rw-r--  1 miket miket 1499 Mar 20 17:45 tab-idx.xml
> -rwxr-xr-x  1 miket miket 1635 Mar 20 17:48 xpath.xsl
>
> Attached files show the error.
>
> Running
> xsltproc xpath.xsl tab-idx.xml
> produces:
>      1 <?xml version="1.0" encoding="UTF-8"?>
>      2 <output>
>      3 <span>Previous Table (ID=3)</span>
>      4 <span>Previous TABLE (ID=2)</span>
>      5 <span>Previous TABLE (ID=2)</span>
>      6 </output>
>
> Changing  line #20 in xpath.xsl from:
>     20 <xsl:variable name='TabPrev1' select='( 
> ($XTAB/preceding-sibling::TABLE[1]) | ($XIDX/TABLE[last()]) )[1]'/>
> to
>     20 <xsl:variable name='TabPrev1' select='( 
> ($XTAB/preceding-sibling::TABLE[1]) | ($XIDX/TABLE[$TOT]) )[1]'/>
> and then running
> xsltproc xpath.xsl tab-idx.xml
> produces:
>      1 <?xml version="1.0" encoding="UTF-8"?>
>      2 <output>
>      3 <span>Previous Table (ID=3)</span>
>      4 <span>Previous TABLE (ID=3)</span>
>      5 <span>Previous TABLE (ID=3)</span>
>      6 </output>
>
> Let me know if further info required.
>
> Mike
>
> Daniel Veillard wrote:
>
> > On Sun, Mar 20, 2005 at 01:59:54PM +0000, Mike Trotman wrote:
> >  
> >
> > > Hi.
> > >
> > > I have a strange (=incorrect+weird) behaviour when using libxml2 via 
> > > xsltproc (and Perl XML:::LibXML/LibXSLT/AxKit)
> > > It looks like using the 'last()' positional function corrupts a 
> > > nodeset - or something more subtle
> > > - which also affect a subsequent Xpath match!!
> > > (and I don't think I'm doing anything stupid.)
> > >
> > >   
> >
> > [...]
> >  
> >
> > > I haven't managed to find an FC2 version of the latest libxml2 yet - 
> > > but don't see this listed in any bug fixes.
> > >   
> >
> >
> >  1/ use the latest version, 2.6.18 and libxslt-1.1.13 . To use them on
> >     FC2 grab the src.rpm from ftp://xmlsoft.org/ and use     rpm 
> > --rebuild libxml2-2.6.18-1.src.rpm and similar for libxslt.
> >  2/ if the problem persists provide full reproductible test case using
> >     xsltproc, as mail or bugzilla attachements of the stylesheet and
> >     the xml input showing the problem. Debugging partial stylesheets
> >     is not possible,
> >
> >  thanks,
> >
> > Daniel
> >
> >  
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