Re: [docbook-apps] Something like an attribute-set, but different

[Geraint North <geraint@transitive.com>]

Hi Tom,

On 14 Dec 2007, at 12:56, Thomas Schraitle wrote:
> Hi,
>
>> I'm having difficulty getting the desired effect, though (either with
>> params or attribute sets), which I think is due to my
>> misunderstanding of Xpath query syntax.  I've constructed a very
>> small case that illustrates my misunderstanding.
>>
>> Within an attribute-set, the following evaluates as true
>>
>>    <xsl:when test="/book">
>>
>> But the following does not:
>>
>>    <xsl:when test="/book/info[1]">
>> nor does
>>    <xsl:when test="/book/info">
>
> The info element looks like you are using DocBook 5, right?
> In this case the above test is expected to fail, because the
> element belongs to no namespace. You need the DocBook5 namespace
> for each element. Insert the following line in <xsl:stylesheet>:
>
>   xmlns:d="http://docbook.org/ns/docbook";
>
> You have to change the XPath expression a bit to take care of the
> DocBook5 namespace:
>
>   <xsl:when test="/d:book/d:info[1]">


Thanks for taking the time to answer, but I'm afraid that I'd tried  
adding namespaces and that didn't work.  Once I've added the correct  
namespace declaration, the following test won't match:

	<xsl:when test="/d:book">

Let alone anything more complicated.  Making the docbook namespace  
the default namespace doesn't help either.

I'm a bit confused that "/book" _does_ match - if it were a namespace  
issue, then I wouldn't expect that to be matching either?

Thanks,

Geraint North
Principal Engineer
Transitive
* The leader in cross-platform virtualization

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