Re: [xsl] XPATH 1.0: Selecting an element attribute starting from a self

what about current() function?

2015-06-17 19:28 GMT+05:00 Malecki, Piotr
piotr(_dot_)malecki(_at_)thyssenkrupp(_dot_)com
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com>:
> Hello,
>
> The question corresponds basically to XPATH 1.0 (not 2.0 , not XSL).
>
> I have an XML like this (snippet only):
>
> <library>
>             <catalog>
>                         <book id="_1" name="Book1"/>
>                         <book id="_2" name="Book2"/>
>                         <book id="_3" name="Book3"/>
>             </catalog>
>             <customer>
>                         <borrowed bookId="_1"/>
>                         <borrowed bookId="_2"/>
>             </customer>
> </library>
>
> In an application (Windows WPF / XAML), my execution context is e.g. the 
> element "borrowed" (e.g. <borrowed bookId="_1"/>).
>
> I have to find the name of the book which is referenced as bookId.
>
> So my XPATH expression is like this:
> "//book[@id=self::*/@bookId]/@name"
>
> Read as: give all books whose id equals to the bookId of the current node.
>
> The Query  is executed for the "borrowed" node (execution context).
>
> Unfortunately the expression doesn't return the result expected (rather an 
> empty set).
>
> What is wrong in my understanding here?
>
> Thank you
> regards
> Piotr
>
>
> Mit freundlichen Grüßen / Kind regards
>
> Dipl.-Ing. Piotr Malecki
>
> Systemingenieur / Systems Engineer
> Waffen und Führung Systemintegration
> Weapon, Command & Control System Integration
> Operating Unit Surface Vessels
>
> ThyssenKrupp Marine Systems GmbH
> Hermann-Blohm-Strasse 3 - 20457 Hamburg- Germany
> P:O.Box 10 07 20 - 20005 Hamburg - Germany
>
> Phone: +49 (0) 431 / 700 2446
> Fax: +49 (0) 431 / 700 1600 2446
>
> Mailto:piotr(_dot_)malecki(_at_)thyssenkrupp(_dot_)com
>
> ThyssenKrupp Marine Systems GmbH
> Chairman of the Supervisory Board: Dr. Hans Christoph Atzpodien
> Executive Board: Andreas Burmester (Chairman), Dieter Rottsieper, Dr. Walter 
> Klausmann, Torsten Könker
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