> -----Ursprüngliche Nachricht-----
> Von: Hans Hagen <j.ha...@xs4all.nl>
> Gesendet: Donnerstag, 24. August 2023 16:54
> An: ntg-context@ntg.nl
> Betreff: [NTG-context] Re: xmldoif: checking for contents of attribute
>
> On 8/24/2023 4:11 PM, denis.ma...@unibe.ch wrote:
> > Hi,
> >
> > I'm trying to check whether an attribute contains (or, actually starts
> > with) a
> given string.
> \xmldoifelse{#1}{.[@class and contains(@class,'abc')]}{Yes}{No}
> \xmldoifelse{#1}{.[@class and find(@class,"abc")]}{Yes}{No}
Thanks for your help. I can use that, but why is this sort of double-checking
necessary here?
\startxmlsetups xml:test
\xmlsetsetup{#1}{*}{-}
\xmlsetsetup{#1}{doc|element}{xml:*}
\stopxmlsetups
\xmlregisterdocumentsetup{test}{xml:test}
\startxmlsetups xml:doc
\xmlflush{#1}
\stopxmlsetups
\startxmlsetups xml:element
1 \xmldoifelse{#1}{.[@class and contains(@class,'abc')]}{Yes}{No} \par
2 \xmldoifelse{#1}{.[@class and find(@class,"abc")]}{Yes}{No} \par
3 \xmldoifelse{#1}{.[True and contains(@class,'abc')]}{Yes}{No} \par % runs,
but no match
4 \xmldoifelse{#1}{.[True and find(@class,"abc")]}{Yes}{No} \par % run, but no
match
% 5 \xmldoifelse{#1}{.[contains(@class,'abc')]}{Yes}{No} \par % causes an error
% 6 \xmldoifelse{#1}{.[find(@class,"abc")]}{Yes}{No} \par % causes an error
\stopxmlsetups
\startxmlsetups xml:whatever
Yes
\stopxmlsetups
\startbuffer[test]
<?xml version="1.0" encoding="UTF-8"?>
<doc>
<element class="abcdefg">Yes</element>
<element>No</element>
</doc>
\stopbuffer
\starttext
\xmlprocessbuffer{test}{test}{}
\stoptext
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