2008/5/6 Mario Madunic <hajduk@xxxxxxxx>:
> Thanks Andrew for that, the error message now tells me which line in the
>  function is causing the problem. Still perplexed but now have a focus.
>  Thanks
>  Mario
>
>  line in question now
>
>
>  <xsl:value-of select="f:f_UpperLowerCaseFix($l_StringAfterDelimiter)" />
>

I would probably do some old school xsl:message output to see what
value was being returned:

<xsl:message select="f:f_UpperLowerCaseFix($l_StringAfterDelimiter)"/>
<xsl:value-of select="f:f_UpperLowerCaseFix($l_StringAfterDelimiter)" />

The key to recursive functions is it should always be obvious when the
recursion stops - your function is large and unwieldy so maybe
concentrate on refining it a little, or reducing it to a postable
example (and I really dislike the $p_ notation)

You might find separating it out into steps each using analyze-string
is the better approach.


-- 
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/