[lxml-dev] Error from Variables in Extension Functions?

[jholg at gmx.de]

Hi,


>     def test_extensions3(self):
>         tree = self.parse('<a><b>B</b></a>')
>         style = self.parse('''\
> <xsl:stylesheet version="1.0"
>     xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>     xmlns:myns="testns"
>     exclude-result-prefixes="myns">
>   <xsl:template match="a">
>     <xsl:variable name="content">
>        <xsl:apply-templates/>
>     </xsl:variable>
>     <A><xsl:value-of select="myns:mytext($content)"/></A>
>   </xsl:template>
> </xsl:stylesheet>''')
> 
>         def mytext(ctxt, values):
>             return 'X' * len(values)
> 
>         namespace = etree.FunctionNamespace('testns')
>         namespace['mytext'] = mytext
> 
>         result = tree.xslt(style)
>         self.assertEquals(self._rootstring(result),
>                           _bytes('<A>X</A>'))
> 
> Actually, the function test_extensions3() is derived from 
> test_extensions2. The
> only difference is the variable content which is passed on to the 
> extension
> function. I've expected an identical result like test_extensions2. From 
> what
> I know, I think it is a common approach to collect the content in a 
> variable
> and pass it on to other functions.
> 
> [...]
> 
> Any hints what I'm doing wrong?
> 

 In the stylesheet, your selection of content into the "content" XSLT 
variable does not

work. 

Try s.th. like

     style = self.parse('''\
<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:myns="testns"
    exclude-result-prefixes="myns">
  <xsl:template match="a">
    <xsl:variable name="content" select="*"/>
    <A><xsl:value-of select="myns:mytext($content)"/></A>
  </xsl:template>
</xsl:stylesheet>''')
    
 Cheers,

Holger 
-- 
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