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Re: passing in path names of nodes as parameters?

Subject: Re: passing in path names of nodes as parameters?
From: Daniel Veillard <daniel@xxxxxxxxxxxx>
Date: Mon, 10 Dec 2001 10:27:22 +0100
xsltproc parameters
On Mon, Dec 10, 2001 at 08:47:28AM -0000, Michael Kay wrote:
> > i have been trying to specify the path of a node as a
> > parameter to  my stylesheet.
> > in my stylesheet, i am trying to access the children of this
> > node.
> >
> > so on the command line i say,
> >
> > java **parser -param nodeparent /A/B
> 
> You are passing in a string "/A/B". There's no way the processor can know
> that you are thinking of this as an XPath expression. If you want to
> evaluate it as an XPath expression, you will need the evaluate() extension
> function, e.g.
> 
> for-each select="xx:evaluate($nodeparent)/*

  Which is why I decided that xsltproc parameters would be
instead XPath expression, not strings. It requires a bit more
work to pass strings at the shell level ("'string'"), but 
there is no requirement for extensions in the stylesheet and
the full XPath expression power is available for parameter
evaluation.

Daniel

-- 
Daniel Veillard      | Red Hat Network http://redhat.com/products/network/
veillard@xxxxxxxxxx  | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/

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