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RE: [xsl] Linking Variable to the Path

2007-08-22 04:28:28
Hi Matthieu,
        As you suggested I worked for a while to implement dyn:evaluate
function in my work but I am unable to get it done. 

I am getting Error :
Description :
Error during XSLT transformation: An unknown XPath extension function was
called.

I am using Mozilla's Processor !

http://www.xmleverywhere.com/tips/xslt.htm 

How can I get it work ? Any sample Implementation ?

Regards
Yaswanth Kumar Ravella




-----Original Message-----
From: Matthieu Ricaud [mailto:matthieu(_dot_)ricaud(_at_)ajlsm(_dot_)com] 
Sent: Wednesday, August 22, 2007 2:41 PM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] Linking Variable to the Path

Hi Yaswanth, 

Hi Peter and Everyone out there!
  Thanks for the reply ~

I have '//every[1]/event[1]' as the destination attributes value.
And there is 'name' attribute  for '//every[1]/event[1]'
i.e //every[1]/event[1]/@name gives me the Value 'Ready'.

Why not $dest/@name gives me the same ?
How to get it  ?

In your fisrt xsl <xsl:variable name="dest"
select="//every[1]/event[1]"/>  will get a *node* /root/every[1]/event[1], 
which do has a @name attribute. Then $dest/@name will get this attribute
value.

But in your second xsl  <xsl:variable name="dest"
select="//pattern[1]/connection[1]/@destination"/>   will get the *string*
"//every[1]/event[1]"
which is the value of @destination. $dest is not a node, it's a string and
you can't do $dest/@name, it doesn't make sens.

As said Christoph you need to evaluate the string, and there is
unfortunately no xslt 1.0 native way to do this !
You need a extension eval function depending on your xslt processor. 
If you use saxon for example, something like this should go <xsl:value-of
select="saxon:eval($dest)/@name"/>.
With msxml you can do your own eval function in jscript, have a look at
http://www.xmleverywhere.com/tips/xslt.htm
You can also use EXSLT extensions I think.

Hope this help, 

Cheers, 

Matthieu.
 
Regards
Yaswanth 


-----Original Message-----
From: Hofman, Peter [mailto:peter(_dot_)hofman(_at_)logicacmg(_dot_)com] 
Sent: Wednesday, August 22, 2007 1:54 PM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: RE: [xsl] Linking Variable to the Path 

Your variable $dest contains a sequence of destination attributes
values, which (of course) do not contain a name attribute.

You need to analyze the contents of connection/@destination and use this
in a selection of event elements.

Regards,
Peter

-----Original Message-----
From: Yaswanth Kumar Ravella 
[mailto:yaswanth(_dot_)mtrx(_at_)gmail(_dot_)com] 
Sent: woensdag 22 augustus 2007 10:16
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Linking Variable to the Path 


Hi,

::I am having an XML file like this ::

<root>
<every>
  <event name="Ready"/>
</every>
<pattern>
  <connection destination="//every[1]/event[1]" />          
</pattern>
</root>
-------------------------------
::When my XSL file has this code::

<xsl:template match="root">   
  <xsl:variable name="dest"         select="//every[1]/event[1]"/>   
  <xsl:value-of select="$dest/@name"/>   
</xsl:template>

It prints 'Ready'.
Here I am directly assigning variable 'dest' to the path of the event.
This is ok.
-------------------------------
::When I changed my XSL code to ::

<xsl:template match="root">   
  <xsl:variable name="dest"
select="//pattern[1]/connection[1]/@destination"/>   
  <xsl:value-of select="$dest/@name"/>   
</xsl:template>

It doesn't print 'Ready' or anything.
Here I am storing variable 'dest' with the value of the 
'connection/@destination', Which I expected to work properly 
but it is not working.




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