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Re: Sorting on a transformed string?

2002-10-29 03:25:33



   From: Scott Bronson <bronson(_at_)rinspin(_dot_)com>
   Date: 26 Oct 2002 09:57:54 -0700

   Hello.  A sort problem is stumping me right now.  I've got the following
   nodes:

       <Member name="CreateInstance">
       <Member name="System.Caption.Insert">
       <Member name="System.Collections.ICollection.Count"

   I'd like to sort them by name, without leading namespace:

       Count, CreateInstance, Insert

   Then I'd like to output them, WITH the namespace:

       System.Collections.ICollection.Count
       CreateInstance
       System.Caption.Insert

   Normally, I use leaf-name (below) to trim the namespace.  However, I
   suspect it's impossible to get sort to use a named template, and I
   haven't figured out any other way of figuring out the leaf name.

   Is possible to sort on the leaf name?  Is it possible in XML 1.0?  :)

   Thank you!

       - Scott






<x>
    <Member name="CreateInstance"/>
    <Member name="System.Caption.Insert"/>
    <Member name="System.Collections.ICollection.Count"/>
</x>






<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="1.0"


<xsl:template match="x">
<xsl:for-each select="Member">
<xsl:sort select="concat(
 substring-after(substring-after(substring-after(@name,'.'),'.'),'.')  ,
 
substring-after(substring-after(@name[not(contains(substring-after(substring-after(.,'.'),'.'),'.'))],'.'),'.')
 ,
substring-after(@name[not(contains(substring-after(.,'.'),'.'))],'.') ,
@name[not(contains(.,'.'))]  )"/>

member: <xsl:value-of select="@name"/>
sorted by: <xsl:value-of select="concat(
 substring-after(substring-after(substring-after(@name,'.'),'.'),'.')  ,
 
substring-after(substring-after(@name[not(contains(substring-after(substring-after(.,'.'),'.'),'.'))],'.'),'.')
 ,
substring-after(@name[not(contains(substring-after(.,'.'),'.'))],'.') ,
@name[not(contains(.,'.'))]  )"/>

</xsl:for-each>

</xsl:template>

</xsl:stylesheet>




$ saxon sort.xml sort.xsl
<?xml version="1.0" encoding="utf-8"?>

member: System.Collections.ICollection.Count
sorted by: Count

member: CreateInstance
sorted by: CreateInstance

member: System.Caption.Insert
sorted by: Insert


David






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