Re: [xml-dev] Venetian Blinds vs Garden of Eden patterns for industry standards XML Schemas

Original Message From: "G. Ken Holman"
> At 2010-10-28 14:32 +0100, Pete Cordell wrote:
>>Hi David,
>>
>>It should be ns1:root/a/b/ns2:root/b as Philip says because in the scheme 
>>I described a and b were unqualified.  As such there's no difference in 
>>name between b in ns1 and b in ns2 as there would be if they were 
>>qualified.
>>
>>I think Philip is right about the issues.  It's down to the limitations in 
>>XPath expressibility.  You need to say something like: b whose qualified 
>>parent is in namespace ns1.  Sort of   b[qualified-parent-ns()=ns1]!
>
> b[parent::ns1:*]
>
> ... or if you are matching nodes:
>
>  ns1:*/b

My XPath knowledge is very weak, but does that allow for matching 'b' in the 
'tree' of:

ns1:root/a/b  ?

I had guessed that ns1:*//b might be better, but I think that expression 
would match both 'b's in the Philip's 'tree' of:

ns1:root/a/b/ns2:root/b

Yours confused,

Pete Cordell
Codalogic Ltd
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