RE: [xsl] Re: getting all nodes from a certain level in the xml hierarchy

["Michael Kay" <michael.h.kay@xxxxxxxxxxxx>]

> When i try this, I get a  "Cannot convert number to NodeSet" 
> Error... I use the Oracle XSLProcessor Classes. 

Looks like an Oracle bug. If the second argument to key() is a number,
it should convert it to a string, not to a node-set. You could probably
circumvent it by converting explicitly to a string using the string()
function.

Michael Kay
Software AG
home: Michael.H.Kay@xxxxxxxxxxxx
work: Michael.Kay@xxxxxxxxxxxxxx 
> 
> 
> -----Ursprungliche Nachricht-----
> Von: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx]Im Auftrag von 
> Dimitre Novatchev
> Gesendet: Freitag, 27. September 2002 12:46
> An: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Betreff: [xsl] Re: getting all nodes from a certain level in 
> the xml hierarchy
> 
> 
> Here's a simple solution using the Muenchian method for grouping:
> 
> source xml (provided by you):
> ----------------------------
> <Folder NAME="/">
>   <Folder NAME="a"/>
>   
>   <Folder NAME="b">
>     <Folder NAME="ba"/>
>     <Folder NAME="bb"/>
>   </Folder>
>   
>   <Folder NAME="z">
>     <Folder NAME="za">
>       <Folder NAME="very deep folder"/>
>     </Folder>
>   </Folder>
> </Folder>
> 
> stylesheet:
> ----------
> <xsl:stylesheet version="1.0" 
>  xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
>  
>  <xsl:output method="text"/>
>  
>   <xsl:key name="kDepth" match="Folder" 
>            use="count(ancestor::*)" />
>   
>   <xsl:template match="/">
>     <xsl:for-each select="//Folder
>                              [
>                               generate-id()
>                              =
>                               generate-id(key('kDepth',
>                                               count(ancestor::*)
>                                               )[1]
>                                           ) 
>                               ]">
>     
>       <xsl:value-of select="concat('Level ', 
>                                    count(ancestor::*),
>                                    ': ' 
>                                    )"/>
>       <xsl:for-each select="key('kDepth',count(ancestor::*))">
>         <xsl:value-of select="concat(@NAME, '; ')"/>
>       </xsl:for-each>
>       
>       <xsl:text>&#xA;</xsl:text>
>     </xsl:for-each>
>   
> 
>   </xsl:template>
> </xsl:stylesheet>
> 
> 
> Result:
> ------
> 
> Level 0: /; 
> Level 1: a; b; z; 
> Level 2: ba; bb; za; 
> Level 3: very deep folder;
> 
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 
> 


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