Re: looping, moving through elements??

".|following-sibling::ve"

.                     selects the current node
following-sibling::ve selects the following ve nodes.
|                     is the union of these selections.

as the current node is a ve this is just
following-sibling-or-self::ve
except that there is no such axis.


<vss>
<ve pos="1">content1</ve>
<ve pos="1.1">content1.1</ve>
  ^^^ so if you are here
      then .|follwing-sibling::ve selects this node and all the
      ve nodes below.

     This node will be indexed by teh key as it matches match="ve"

   <xsl:key name="x" match="ve"
   use="(.|folowing-sibling::ve)
     [string-length(@pos)=3+string-length(translate(@pos,'.',''))][1]/@pos"/>

   and its key will be the value of the use expression which is
   (once you spell check folowing:-)
   the pos attribute (/@pos) of the first ([1]) ve element thathas three
   "." ([string-length(@pos)=3+string-length(translate(@pos,'.',''))])
   so that is  pos="1.1.1.1"

   so key('x','1.1.1.1') would retrun this node and any other nodes with
   the same key, which is
     <ve pos="1"><ve pos="1.1"><ve pos="1.1.1"><ve pos="1.1.1.1">
   
   so all you have to do is loop through all the 3-dot ones, making a
   row for each, then look up in the key and that will return all the
   nodes to go in that row, hence the inner for-each.

   

<ve pos="1.1.1">content1.1.1</ve>
<ve pos="1.1.1.1">content1.1.1.1</ve>
<ve pos="1.1.2">content1.1.2</ve>
<ve pos="1.1.2.1">content1.1.2.1</ve>
<ve pos="1.1.2.2">content1.1.2.2</ve>
<ve pos="1.2">content1.2</ve>
<ve pos="1.2.1">content1.2.1</ve>
<ve pos="1.2.1.1">content1.2.1.1</ve>
<ve pos="1.2.1.2">content1.2.1.2</ve>
<ve pos="1.2.1.3">content1.2.1.3</ve>
<ve pos="1.2.2">content1.2.2</ve>
<ve pos="1.2.2.1">content1.2.2.1</ve>
<ve pos="1.3">content1.3</ve>
<ve pos="1.3.1">content1.3.1</ve>
<ve pos="1.3.1.1">content1.3.1.1</ve>
<ve pos="2">content2</ve>
<ve pos="2.1">content2.1</ve>
<ve pos="2.1.1">content2.1.1</ve>
<ve pos="2.1.1.1">content2.1.1.1</ve>
</vss>


David

(where's the list auto-documentation daemon gone when you need it:-)


-- 
http://www.dcarlisle.demon.co.uk/matthew

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