Re: [xsl] one function call twice for the same variable

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Renate,

At 03:20 PM 7/10/2006, you wrote:
> I need to call one function for the same variable twice (somethin like
> recursive)...
> How to do this?
>
>
> <xsl:variable name="CustomerSignerLName">
>           <xsl:call-template name="change">
>                         <xsl:with-param name="name_string" select="LNAME"/>
>                         <xsl:with-param name="delimiter" select="'-'"/>
>         </xsl:call-template>
> </xsl:variable>
>
>
> And once again with the same parameter:
>           <xsl:call-template name="change">
>                         <xsl:with-param name="name_string" 
> select="$CustomerSignerLName"/>
>                         <xsl:with-param name="delimiter" select="'-'"/>
>         </xsl:call-template>
>
> And twice with another parameter:
>           <xsl:call-template name="change">
>                         <xsl:with-param name="name_string" 
> select="$CustomerSignerLName"/>
>                         <xsl:with-param name="delimiter" select="' '"/>
>         </xsl:call-template>
>
>           <xsl:call-template name="change">
>                         <xsl:with-param name="name_string" 
> select="$CustomerSignerLName"/>
>                         <xsl:with-param name="delimiter" select="' '"/>
>         </xsl:call-template>
>
> How to write it correctly?

I don't see any obvious syntax errors here, but it's also not clear 
from your description what you are trying to accomplish.

Oh, I think I get it. Try this:

<xsl:template name="change-string">
  <xsl:param name="so-far" select="''"/>
  <xsl:param name="delimiter-string" select="'--  '"/>
  <xsl:choose>
    <xsl:when test="$delimiter-string">
      <xsl:call-template name="change-string">
        <xsl:with-param name="so-far">
          <xsl:call-template name="change">
            <xsl:with-param name="name_string" select="$so-far"/>
            <xsl:with-param name="delimiter" 
select="substring($delimiter-string,1,1)"/>
          </xsl:call-template>
        </xsl:with-param name="delimiter-string"
           select="substring($delimiter-string,2)"/>
      </xsl:call-template>
    </xsl:when>
    <xsl:otherwise>
      <xsl:value-of select="$so-far"/>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

Pass in $CustomerSignerLname to be the "so-far" value when you call it.

This kind of thing is much nicer in XSLT 2.0, where XPath is stronger 
and we even have user-defined functions.

Note: wild guess, not checked, tested or refined, comes without warranty.

Cheers,
Wendell