Martin Honnen wrote:

> Carles Company Soler wrote:
> 
>> I want to store the value of an attribute in a XSL variable. I do it this
>> way:
>> 
>> <xsl:variable name="aux" select="@x" />
>> 
>> But I don't get anything in the variable... What do I get wrong?
> 
> We need to know what is the context node (e.g. whether it is an element
> node and has an attribute named "x"), then we need to see where you read
> out the attribute value.
> 
> 

Ooops. Right, I'll send everything. It's a very simple stylesheet to
transform a custom DTD to SVG. I'll mark the place where the variable is
used with a line of * :

--8<---------DTD-------8<---

<!ELEMENT graph (sujet|relation)*>
<!ELEMENT sujet (nom?,type)>
<!ELEMENT relation (nom)>
<!ELEMENT nom (#PCDATA)>
<!ELEMENT type (#PCDATA)>
<!ATTLIST sujet id ID #IMPLIED>
<!ATTLIST sujet x CDATA #REQUIRED>
<!ATTLIST sujet y CDATA #REQUIRED>
<!ATTLIST relation from IDREFS #REQUIRED>
<!ATTLIST relation to IDREF #REQUIRED>
<!ATTLIST relation x CDATA #REQUIRED>
<!ATTLIST relation y CDATA #REQUIRED>
<!ATTLIST relation dir (r|l|d|u) #REQUIRED>

--8<-------------------8<---

--8<------XML---------8<------

<!DOCTYPE graph SYSTEM "graph.dtd">
<?xml-stylesheet type="text/xsl" href="transform3.xsl"?>
<graph>
<sujet id="a" x="2" y="1">
        <nom>Tintin</nom>
        <type>livre</type>
</sujet>
<sujet id="b" x="0" y="0">
        <nom>Jacques</nom>
        <type>personne</type>
</sujet>
<sujet id="c" x="0" y="2">
        <nom>Marie</nom>
        <type>personne</type>
</sujet>
<relation from="b c" to="a" x="1" y="1" dir="r">
        <nom>envoyer</nom>
</relation>
</graph>

--8<---------------8<--------

----8<------XSL-------8<-------

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/2000/svg">
    <xsl:output method="xml" indent="yes"
        doctype-public="-//W3C//DTD SVG 1.1//EN" 
        doctype-system="http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"/>
<xsl:variable name="xper" select="200" />
<xsl:variable name="yper" select="100" />
<xsl:template match="/">
<svg width="100%" height="100%" version="1.1"
xmlns="http://www.w3.org/2000/svg">

<!-- Arrow head -->

<marker id="Triangle"
  viewBox="0 0 10 10" refX="10" refY="5"
  markerUnits="strokeWidth"
  markerWidth="4" markerHeight="3"
  orient="auto">
  <path d="M 0 0 L 10 5 L 0 10 z" />
</marker>

<xsl:apply-templates />

</svg>
</xsl:template>

<!-- Sujet boxes -->
<xsl:template match="sujet">
<rect x="{@x*$xper+10}" y="{@y*$yper+10}" height="30" width="150"
style="fill:blue;stroke:black;stroke-width:2;opacity:0.5" />

<text x="{@x*$xper+15}" y="{@y*$yper+28}"
style="font-size:10px;font-weight:bold"><xsl:value-of select="type" /> :
<xsl:value-of select="nom" /></text>
</xsl:template>

<!-- Arrows for each direction -->

********************
<xsl:template match="relation">
<xsl:variable name="aux" select="@x" />
<xsl:variable name="auy" select="@y" />
<rect x="{@x*$xper+10}" y="{@y*$yper+10}" ry="5" height="30" width="150"
style="fill:yellow;stroke:black;stroke-width:2;opacity:0.5" />

<text x="{@x*$xper+15}" y="{@y*$yper+28}"
style="font-size:10px;font-weight:bold"><xsl:value-of
select="nom" /></text>
<xsl:choose>
<xsl:when test="@dir='l'">
<xsl:for-each select="id(@from)">
<line x1="{@x*$xper+10}" y1="{@y*$yper+25}" x2="{$aux*$xper+160}"
y2="{$auy*$yper+25}" style="stroke:rgb(99,99,99);stroke-width:2"
marker-end="url(#Triangle)" />
</xsl:for-each>
<line x1="{@x*$xper+10}" y1="{@y*$yper+25}" x2="{id(@to)/@x*$xper+160}"
y2="{id(@to)/@y*$yper+25}" style="stroke:rgb(99,99,99);stroke-width:2"
marker-end="url(#Triangle)" />
</xsl:when>
*******************************
<xsl:when test="@dir='r'">
<xsl:for-each select="id(@from)">
<line x1="{@x*$xper+160}" y1="{@y*$yper+25}" x2="{$aux*$xper+10}"
y2="{$auy*$yper+25}" style="stroke:rgb(99,99,99);stroke-width:2"
marker-end="url(#Triangle)" />
</xsl:for-each>
<line x1="{@x*$xper+160}" y1="{@y*$yper+25}" x2="{id(@to)/@x*$xper+10}"
y2="{id(@to)/@y*$yper+25}" style="stroke:rgb(99,99,99);stroke-width:2"
marker-end="url(#Triangle)" />
</xsl:when>

<xsl:when test="@dir='d'">
<xsl:for-each select="id(@from)">
<line x1="{@x*$xper+85}" y1="{@y*$yper+40}" x2="{$aux*$xper+85}"
y2="{$auy*$yper+10}" style="stroke:rgb(99,99,99);stroke-width:2"
marker-end="url(#Triangle)" />
</xsl:for-each>
<line x1="{@x*$xper+85}" y1="{@y*$yper+40}" x2="{id(@to)/@x*$xper+85}"
y2="{id(@to)/@y*$yper+10}" style="stroke:rgb(99,99,99);stroke-width:2"
marker-end="url(#Triangle)" />
</xsl:when>

<xsl:when test="@dir='u'">
<xsl:for-each select="id(@from)">
<line x1="{@x*$xper+85}" y1="{@y*$yper+10}" x2="{$aux*$xper+85}"
y2="{$auy*$yper+30}" style="stroke:rgb(99,99,99);stroke-width:2"
marker-end="url(#Triangle)" />
</xsl:for-each>
<line x1="{@x*$xper+85}" y1="{@y*$yper+10}" x2="{id(@to)/@x*$xper+85}"
y2="{id(@to)/@y*$yper+30}" style="stroke:rgb(99,99,99);stroke-width:2"
marker-end="url(#Triangle)" />
</xsl:when>

</xsl:choose>
</xsl:template>

</xsl:stylesheet>

-------8<--------8<---------

The fact is that it works when I use xalan as XSLT processor, but when I try
to use Firefox's one it doesn't work very well.

Thanks!