pulling and using an uri from an rss encode tag

[coflo]

I am relatively new to XSL transforms so I apologize if my language or verbage is incorrect.

I am trying to invoke a JS function of a flash player which requires a URI. In order to do this I would like to take the RSS feed, the snippet below, and grab the uri from the <enclosure> tag. You will see that there is a &uri=channels/39174/186941 inside of the url="" i would like to grab this piece and insert it into my XSL <a href= as currently defined by $item_enclosure.

Here is my XML:

<item>
<title>New Show: Mobile Show 434</title>
<link>http://www.kyte.tv/ch/39174-flocam/186941-mobile-show-434</link>
<guid>http://www.kyte.tv/ch/39174-flocam/186941-mobile-show-434</guid>
<description>&lt;a href='http://www.kyte.tv/ch/39174-flocam/186941-mobile-show-434'&gt;&lt;img src='http://media06.kyte.tv/store/005/06/crr/0808/05/04/694822-37003-08042008077_120_90-tom-1000.jpg?aid=21808&amp;h=c572dfe49ef7e0704a003559429b4605' title='Mobile Show 434' width='120' height='90' alt='Mobile Show 434' border='0'/&gt;&lt;/a&gt;&lt;br&gt;produced by coflo.</description>
 
<pubDate>Tue, 05 Aug 2008 04:10:00 +0000</pubDate>
<media:content url="http://www.kyte.tv/flash.swf?appKey=MarbachViewerEmbedded&amp;uri=channels/39174/186941&amp;layoutMode=default" fileSize="30" type="application/x-shockwave-flash" height="425" width="425" duration="1"/>
<enclosure url="http://www.kyte.tv/flash.swf?appKey=MarbachViewerEmbedded&amp;uri=channels/39174/186941&amp;layoutMode=default" length="30" type="application/x-shockwave-flash"/>
</item>
 

-----------

As you can see in my XSL im able to pull the url and insert it but i have no idea how to extract the uri=channels/39174/186941

Here is my attempt XSL:

<xsl:template match="item">
<xsl:variable name="item_link" select="link"/>
<xsl:variable name="item_enclosure" select="enclosure/@url"/>
<xsl:variable name="item_title" select="description"/>
<xsl:variable name="item_media" select="media"/>
<div class="subHead" style="width:300px;">
<a href="javascript:void(kyteplayer.setURI('{$item_enclosure}'))"><xsl:value-of select="title" disable-output-escaping="yes"/></a></div>
<div style="width:300px;">
<xsl:value-of select="description" disable-output-escaping="yes"/><br/></div>
 
(<xsl:value-of select="pubDate"/>)<br/> <hr/>
 

[jkmyoung]

Getting the url:
substring-after(//enclosure/@url/, 'uri=')
This gets everything after uri=
Now the problem is, is there another argument afterwards? If so, we can take everything before the &; if not we simply take the whole substring.

<xsl:variable name="afterURI" select="substring-after(//enclosure/@url/, 'uri=')"/>
<xsl:variable name="URIVal">
  <xsl:choose> 
      <xsl:when test="contains($afterURI, '&amp;amp;')">
         <xsl:value-of select="substring-before($afterURI, '&amp;amp;')"/>
      </xsl:when>
      <xsl:otherwise>
        <xsl:value-of select="$afterURI"/>
      </xsl:otherwise>
   </xsl:choose>
</xsl:variable>
 

Then when you want to output this,

<a href="javascript:void(kyteplayer.setURI('{$URIVal}'))"><xsl:value-of select="title" disable-output-escaping="yes"/></a>
 

[coflo]

I seem to be getting an error: SAXParseException: Unterminated entity reference

it is always pointing to the line that starts with

<xsl:variable name="afterURI" select="substring-after(//enclosure/@url/, '&uri=')"/>

[coflo]

Ahh!! I got it, took a bit of playing around but thank you so much for your help - here is my final result working!

<xsl:template match="item">
 
 
 
  <xsl:variable name="item_link" select="link"/>
  <xsl:variable name="item_enclosure" select="enclosure/@url"/>
  <xsl:variable name="item_title" select="description"/>
  <xsl:variable name="item_media" select="media"/> 
 
<xsl:variable name="afterURI">
<xsl:value-of select = "substring-after($item_enclosure, '&amp;uri=')" />
</xsl:variable>
 
 
       <xsl:variable name="URIVal">
        <xsl:choose>
            <xsl:when test="contains($afterURI, '&amp;')">
               <xsl:value-of select="substring-before($afterURI, '&amp;')"/>
            </xsl:when>
            <xsl:otherwise>
              <xsl:value-of select="$afterURI"/>
            </xsl:otherwise>
         </xsl:choose>
      </xsl:variable>
 
  <div class="subHead" style="width:500px;">
    <a href="javascript:void(kyteplayer.setURI('{$URIVal}'))"><xsl:value-of select="title" disable-output-escaping="yes"/></a></div>
    <div style="width:500px;">
 <xsl:value-of select="description" disable-output-escaping="yes"/><br/></div>
 
 (<xsl:value-of select="pubDate"/>)<br/> <hr/>
 </xsl:template>
 

edit: humm the & isnt showing up correctly it should be & a m p

[jkmyoung]

yeah, the code tags seem to automatically unescape &amp; as &, sorry forgot about that quirk.

[coflo]

please take a look at the next step of this project on which I am getting hung up on here: http://bytes.com/forum/thread829025.html