RE: [xsl] Getting useful data from this XML

They call this an XML feed?

I struggled with this at first, until I realized that they have not only
committed the crime of escaping the nested markup so that < is written as
&lt;, they have actually double-escaped it so that it is written as &amp;lt;
This must be the most perverse XML document I have seen for a long time.
Using disable-output-escaping will compensate for a single level of
unnecessary escaping in the input, but it won't compensate for two levels. 

If your project allows you to use Saxon, I would suggest

        <p>1) <xsl:value-of select="saxon:parse(concat('&lt;d&gt;',
@description, '&lt;/d&gt;'))"
                              disable-output-escaping="yes"
xmlns:saxon="http://saxon.sf.net/"/></p>

which does the trick. Horrible input sometimes demands a horrible
stylesheet.

Michael Kay
http://www.saxonica.com/
 

> -----Original Message-----
> From: G.Wenden@xxxxxxxxxxxxxxx [mailto:G.Wenden@xxxxxxxxxxxxxxx] 
> Sent: 27 April 2005 10:15
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] Getting useful data from this XML
> 
> I'm trying to write an xsl that will allow me to show whether 
> there are any problems on our local rail lines. The train 
> company provide an XML feed but I'm having trouble getting 
> any useful data out of it.
> I've tried a couple of different approaches but the data that 
> comes out has HTML tags that are displayed rather than used.
> 
> Thanks,
> 
> Greg
>  
> Here is an example XML file
>  
> <?xml version="1.0" encoding="iso-8859-1" ?> <?xml-stylesheet 
> type="text/xsl" href="new.xsl"?>
> <!--
> Number of disruption/incidents : 'num_incidents' attrbute.
> Where there are no disruptions, we recommend that you simply 
> state: 'Services running normally.'
> -->
> <!DOCTYPE merseyrail [
> <!ELEMENT merseyrail (incident?)>
> <!ATTLIST merseyrail num_incidents CDATA "0"> <!ELEMENT 
> incident (EMPTY)> <!ATTLIST incident description CDATA 
> #IMPLIED> <!ATTLIST incident details_url CDATA #IMPLIED> ]> 
> <merseyrail num_incidents='1'> <incident description="09.15 
> &amp;lt;B&amp;gt;Chester&amp;lt;/B&amp;gt; to 
> &amp;lt;B&amp;gt;Liverpool&amp;lt;/B&amp;gt; will start at 
> &amp;lt;B&amp;gt;Hooton&amp;lt;/B&amp;gt;." 
> details_url="&amp;lt;a 
> href=&amp;quot;http://www.merseyrail.org/travelling/?sSrc=&amp
> ;sGUID=59d620a61d0ba0dd29dc0c4cebefce81&amp;id=1647&amp;lt;/a&
> amp;gt;" /> </merseyrail>
> 
> And here is the xsl that I have written. 
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0" 
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; 
> xmlns:fo="http://www.w3.org/1999/XSL/Format";>
> <xsl:output method="html"/>
> 	<xsl:template match="/">
> 		<html>
> 			<head>
> 				<title>Merseyrail Service 
> Announcement</title>
> 			</head>
> 			<body>
>       <xsl:for-each select="merseyrail/incident">
>         <xsl:if test="position()=1">
>           <h1>Merseyrail services are NOT running normally.</h1>
>         </xsl:if>
> 
>         <p>1) <xsl:value-of select="@description" 
> disable-output-escaping="yes"/></p>
>         <p>2) <xsl:value-of select="@description" /></p>
>         <p>3) <xsl:value-of select="@details_url" 
> disable-output-escaping="yes"/></p>
>       </xsl:for-each>
>       
>       <xsl:for-each select="merseyrail[@num_incidents='0']">
>         <h1>Merseyrail services are running normally.</h1>
>       </xsl:for-each>
>       
>         <p> This information is taken from <a 
> href="http://www.merseyrail.org";>www.merseyrail.org</a></p>
> 			</body>
> 		</html>
> 	</xsl:template>
> </xsl:stylesheet>
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