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Re: Why I want to change the value of a variable.

Subject: Re: Why I want to change the value of a variable.
From: David Carlisle <davidc@xxxxxxxxx>
Date: Tue, 26 Oct 1999 13:06:23 +0100 (BST)
> So why is it called 'variable'?
 
well in an earlier draft it was called a constant, but it got changed
(rightly I think). It can have different values in different scopes so
`constant' is a confusing name, and variable corresponds with the
terminology of other functional languages such as standard ML.


> <xsl:stylesheet xmlns:xsl="http://www.w3.org/TR/WD-xsl";

which XSL engine are you using? That has not been the XSL namespace URI
for a _long_ time. None of the current XSL engines will work with that
except IE5. If you are using IE5 please say so, as the `XSL' implemented
there is basically a completely different language that happens to hace
the same name.

The version below appears to do the right thing given a current XSL
engine. On xt it currently adds one extra xmlns:X attribute to the
top level html element but that is a known issue, and shouldn't do any
harm.


Note I lowercased all your HTML elements. You should get used to that,
after HTML4, HTML will be XML based, with elements all lowercase.

David


<xsl:stylesheet 
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
 xmlns:X="file:/dev/null"
>

<xsl:output type="html"/>

<X:letters>
<X:letter name="A"/>
<X:letter name="B"/>
<X:letter name="C"/>
<X:letter name="D"/>
<X:letter name="E"/>
<X:letter name="F"/>
<X:letter name="G"/>
<X:letter name="H"/>
<X:letter name="I"/>
<X:letter name="J"/>
<X:letter name="K"/>
<X:letter name="L"/>
<X:letter name="M"/>
<X:letter name="N"/>
<X:letter name="O"/>
<X:letter name="P"/>
<X:letter name="Q"/>
<X:letter name="R"/>
<X:letter name="S"/>
<X:letter name="T"/>
<X:letter name="U"/>
<X:letter name="V"/>
<X:letter name="W"/>
<X:letter name="X"/>
<X:letter name="Y"/>
<X:letter name="Z"/>
</X:letters>

<xsl:template match="/">
  <html>
    <head><title>People list</title></head>
    <body>
      <xsl:variable name="here" select="."/>
      <xsl:for-each select="document('')/xsl:stylesheet/X:letters/X:letter/@name">
         <center>-<xsl:value-of select="."/>-</center>
         <xsl:choose>
         <xsl:when test="$here/LIST_PEOPLE/PEOPLE[starts-with(NAME,current())]">
           <xsl:for-each select="$here/LIST_PEOPLE/PEOPLE[starts-with(NAME,current())]">
             <xsl:sort select="NAME"/>
             <xsl:value-of select="FIRST_NAME"/><xsl:text> </xsl:text>
             <xsl:value-of select="NAME"/><br/><xsl:text>
           </xsl:text>
           </xsl:for-each>
         </xsl:when>
         <xsl:otherwise>
            nobody
         </xsl:otherwise>
         </xsl:choose>
      </xsl:for-each>
    </body>
  </html>
</xsl:template>

</xsl:stylesheet>





produces this on your input






<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html xmlns:X="file:/dev/null">
<head>
<title>People list</title>
</head>
<body>
<center>-A-</center>Gweltaz Ar Fur<br>
           <center>-B-</center>
            nobody
         <center>-C-</center>
            nobody
         <center>-D-</center>Marc Duchmol<br>
           Chris Dupont<br>
           Maria Dupuis<br>
           Yves Durant<br>
           <center>-E-</center>
            nobody
         <center>-F-</center>
            nobody
         <center>-G-</center>
            nobody
         <center>-H-</center>
            nobody
         <center>-I-</center>
            nobody
         <center>-J-</center>
            nobody
         <center>-K-</center>Sam Kememer<br>
           <center>-L-</center>Laurent Leclercq<br>
           Emmanuel Leguy<br>
           Florence Lerouge<br>
           <center>-M-</center>
            nobody
         <center>-N-</center>
            nobody
         <center>-O-</center>
            nobody
         <center>-P-</center>Gilles Presley<br>
           <center>-Q-</center>
            nobody
         <center>-R-</center>Eve Ramone<br>
           <center>-S-</center>Marie-Pierre Smith<br>
           Alan Stivell<br>
           <center>-T-</center>
            nobody
         <center>-U-</center>
            nobody
         <center>-V-</center>
            nobody
         <center>-W-</center>
            nobody
         <center>-X-</center>
            nobody
         <center>-Y-</center>
            nobody
         <center>-Z-</center>
            nobody
         </body>
</html>


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