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   Re: [xml-dev] XPATH expression

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Razvan MIHAIU wrote:
> Hi,
> 
> 
> 
> 
>    Can somebody explain to me what is the meaning of the following 
> expression:
> 
> a[not(following::x=.)]

hi,

it seems to mean something like this :
all <a> elements which string value is not in any <x> sibling element
or this :
the difference of 2 sets {<a>} - {<x>}

<B>
    <a>1</a> this one
    <a>2</a>
    <a>1</a> this one
    <x>3</x>
    <x>4</x>
    <x>2</x>
</B>

<B>
    <a>3</a> this one
    <a>1</a>
    <a>2</a> this one
    <a>3</a> this one
    <x>5</x>
    <x>4</x>
    <x>1</x>
</B>

notice that :
a[ following::x != . ]
doesn't give the same result


> 
> 
>    Sample xml:
> 
> <B>
>    <a>1</a>
>    <a>2</a>
>    <a>1</a>
>    <x>3</x>
>    <x>4</x>
>    <x>2</x>
> </B>
> 
> <B>
>    <a>3</a>
>    <a>1</a>
>    <a>2</a>
>    <a>3</a>
>    <x>5</x>
>    <x>4</x>
>    <x>1</x>
> </B>
> 
> 
> 
> Regards,
> Razvan
> 
> 
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-- 
Cordialement,

            ///
           (. .)
  -----ooO--(_)--Ooo-----
|   Philippe Poulard    |
  -----------------------




 

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