RE: Reverse Tokens Template

Hi.
Try this template:

 <xsl:template name="reverse">
  <xsl:param name="str" select="string(.)"/>
  <xsl:param name="res" select="''"/>
  <xsl:param name="sep" select="''"/>
  <xsl:choose>
   <xsl:when test="contains($str,' ')">
    <xsl:call-template name="reverse">
     <xsl:with-param name="str" select="substring-after($str,' ')"/>
     <xsl:with-param name="sep" select="' '"/>
     <xsl:with-param name="res" select="concat(substring-before($str,'
'),$sep,$res)"/>
    </xsl:call-template>
   </xsl:when>
   <xsl:otherwise>
   <xsl:value-of select="concat($str,$sep,$res)"/>
   </xsl:otherwise>
  </xsl:choose>
 </xsl:template>

It recursively breaks the string on the space char and concat each peace
backwardly.

Hope that this helps you

  Américo Albuquerque



> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Greene, Stephen
> Sent: Thursday, May 15, 2003 3:39 PM
> To: XSL List (E-mail)
> Subject:  Reverse Tokens Template
> 
> 
> Hi,
>  
> I have been trying to modify (un-sucessfully) Dimitre 
> Novatchev's template to reverse the order of "words" in a 
> string (words being character substrings seperated by a space 
> character). Such that the string "hello world" would become 
> "world hello". I was wondering if anyone would be able to 
> offer any hints on how to accomplish this.
>  
> I have tried modifying the template but as the word length is 
> variable, (and the words need to go back into a string, and 
> not be output) I have been unsuccessful in concatenating the 
> string after removing one word at a time.
>  
> If this is not possible, is there a way in which I could 
> remove one word at a time from the end of the string? (in a 
> substring-before($theString, ' ') like way) Instead of the beginning?
>  
> I thank you for your time and for your help,
>  
> Regards,
>  
> Stephen Greene
>  
> National Research Council of Canada
> 
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> 




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