RE: [xsl] Using <xsl:number>

["Michael Kay" <mhk@xxxxxxxxx>]

<xsl:number/> with no attributes should do the job.

The "from" attribute with level="single" is very rarely used, and in the
XSLT 1.0 spec it's very unclear what its intended meaning is.

Michael Kay 

> -----Original Message-----
> From: David Buddrige [mailto:dbuddrige@xxxxxxxxx] 
> Sent: 09 June 2004 04:55
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] Using <xsl:number>
> 
> Hi all,
> 
> I am trying to figure out how to use the <xsl:number>
> tag in the following way:
> 
> 
> I have a set of recursively heirarchically structured
> tags called "Scopes", in the following xml:
> 
> 
> <Data>
> 	<Scope id="1">
> 		<Scope id="2"/>
> 		<Scope id="3"/>
> 	</Scope>
> 	<Scope id="4">
> 		<Scope id="5">
> 			<Scope id="6"/>
> 			<Scope id="7"/>
> 		</Scope>
> 		<Scope id="8">
> 			<Scope id="9">
> 				<Scope id="10"/>
> 				<Scope id="11"/>
> 			</Scope>
> 			<Scope id="12"/>
> 		</Scope>
> 	</Scope>
> 	<Scope id="13"/>
> </Data>
> 
> What I want to do is add a sort-order property to each
> Scope tag, which identifies its relative position at
> each level of the heirarchy among its peers only. 
> That is to say, the sort-order tag should be added
> like this:
> 
> <Data>
> 	<Scope id="1" sort-order="1">
> 		<Scope id="2" sort-order="1"/>
> 		<Scope id="3" sort-order="2"/>
> 	</Scope>
> 	<Scope id="4" sort-order="2">
> 		<Scope id="5" sort-order="1">
> 			<Scope id="6" sort-order="1"/>
> 			<Scope id="7" sort-order="2"/>
> 		</Scope>
> 		<Scope id="8" sort-order="2">
> 			<Scope id="9" sort-order="1">
> 				<Scope id="10" sort-order="1"/>
> 				<Scope id="11" sort-order="2"/>
> 			</Scope>
> 			<Scope id="12" sort-order="2"/>
> 		</Scope>
> 	</Scope>
> 	<Scope id="13" sort-order="3"/>
> </Data>
> 
> So that, as you can see, the sort-order is counted at
> one level only of the recursive structure.  If there
> is a sub-tree coming from a given scope, then the
> children are numbered starting at 1 at that direct
> decentant level only...
> 
> To do this, I have been trying to use the <xsl:number>
> tag to insert a new attribute to my xml in the
> following way:
> 
> 
> <xsl:attribute name=\"sort_order\">";
>   <xsl:number level=\"single\" from=\"Scope\"/>";
> </xsl:attribute>";
> 
> My problem is the "from" attribute... I am reading the
> "XSLT Programmers Reference" by  Michael Kay, and the
> description for the "from" attribute of the
> <xsl:number> tag says that the from field "Determines
> a cut-off point, a point in the document from which
> sequence numbering starts fresh".
> 
> Subsequently, since I want to start numbering fresh
> whenever a new subtree begins, I was trying to use
> "Scope" as the identifier for the next tag that would
> reset numbering...
> 
> this does not work however - I always seem to get a
> sort-order that is consecutively numbered from the
> first element to the last ignoring the recursive
> structure of scope tags.
> 
> Can anyone help me out with how you go about matching
> against any *child* scopes, so that all *child* scopes
> reset the numbering, but any sibling scopes are
> numbered consecutively?
> 
> thanks heaps guys
> 
> David.
> 
> 
> 
> 
> 	
> 		
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