Re: [xsl] Looping using XSL

[Wendell Piez <wapiez at mulberrytech dot com>]

Josh,

This is something shameful, but it works:

<xsl:template match="mood">
  <xsl:for-each select="//*[position() &lt;= rating]">
    <div class="moodbar">
      <img src="layout/global/pics/mood-red.gif" alt="" />
    </div>
  </xsl:for-each>
</xsl:template>

When this was first introduced a couple of years back, there was a 
discussion of how best to get a large enough set of nodes (the critical bit 
to avoid having this trick be painfully expensive ... *at least* bind that 
//* to a variable to avoid traversing it all the time):

<xsl:variable name="plentynodes" select="//*"/>

<xsl:for-each select="$plentynodes[position() &lt;= rating]">...

Note: it is *not* a loop, and is only iteration in some particular sense.

Enjoy,
Wendell

At 11:05 PM 10/1/2002, you wrote:
> I am trying to use a number in an xml file to define the number of times 
> an image gets placed on the page. As the number appears only once and 
> there are no nodes to count or group I'm a little bit stuck.
>
> The XML looks like this:
> <mood>
>   <rating>5</rating>
> </mood>
>
> In this case I want to put five iterations of the image on screen like this:
>
> <div class="moodbar"><img src="layout/global/pics/mood-red.gif" alt="" 
> /></div>
> <div class="moodbar"><img src="layout/global/pics/mood-red.gif" alt="" 
> /></div>
> <div class="moodbar"><img src="layout/global/pics/mood-red.gif" alt="" 
> /></div>
> <div class="moodbar"><img src="layout/global/pics/mood-red.gif" alt="" 
> /></div>
> <div class="moodbar"><img src="layout/global/pics/mood-red.gif" alt="" 
> /></div>
>
> Is there a way of doing this so if the number is changed (with a max of 17 
> possible) the number of images will change?
___&&__&_&___&_&__&&&__&_&__&__&&____&&_&___&__&_&&_____&__&__&&_____&_&&_
    "Thus I make my own use of the telegraph, without consulting
     the directors, like the sparrows, which I perceive use it
     extensively for a perch." -- Thoreau


XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list