Re: checking if an element starts-with a certain strin

<field>
   <code>PYTT/030/040</code>
   <element/>
</field>
<field>
   <code>PYTT/030/040/050</code>
   <element/>
</field>

Hi,

I got a problem with defining my keys right. I got a separate XML file where I want to lookup things according to a code. The XML structure file looks as follows:

<fields>
   <field>
      <code>PYTT/010</code>
      <element>foo</element>
      <element>bar</element>
   </field>
   <field>
      <code>PYTT/020</code>
      <element>bar</element>
   </field>
</fields>

In the main XML file the codes contain more numbers for example:
<org code="PYTT/010/030/040"/>

I want to access the first file using keys. I already managed to access using a for-each and this works fine but too slow.

Define key

<xsl:key name="field" match="field" use="code"/>

The code looks like this:
<xsl:variable name="code" select="@code"/>
<xsl:for-each select="document($structure-doc)">
<xsl:for-each select="fields/field[starts-with($code, code)] ">

Here use

<xsl:for-each select="key('field', substring($code, 0, 9))">

or

<xsl:for-each select="key('field', concat(substring-before($code, '/'), '/', substring-before(substring-after($code, '/'), '/')))">

I.e. you can't use starts-with, you use the equality operator for key lookups.


Cheers,

Jarno - Madam Zu: August 2003 Part 2