Re: [xsl] Enumerating template matches

[Morten <morten@xxxxxxx>]

Michael Kay wrote:

> > > <xsl:template match="B">
> > >  <xsl:apply-templates select="C">
> > >    <xsl:with-param name="match_number" select="position()"/>
> > >  </xsl:apply-templates>
> > > </xsl:template>
> > >
> > > <xsl:template match="C">
> > >  <xsl:param name="match_number"/>
> > >  <xsl:value-of select="$match_number"/>
> > > </xsl:template>
> >
> > This one did not work, only outputs 0's.
>
> I think that's a bug: position() should never by zero. Which processor?

Mm.. Xalan-2.2.14. But wouldn't you suspect it to be the parameter
passing rather than position() as it works when I use call-template
rather than apply-templates?

[troi]~>more demo.xml
<?xml version="1.0" encoding="iso-8859-1"?>
<mailboxes>
  <mailbox user="userA">
    <mail><subject>SubA</subject></mail>
  </mailbox>
  <mailbox user="userB">
    <mail><subject>SubB1</subject></mail>
    <mail><subject>SubB2</subject></mail>
  </mailbox>
  <mailbox user="userC">
    <mail><subject>SubC1</subject></mail>
    <mail><subject>SubC2</subject></mail>
  </mailbox>
</mailboxes>

[troi]~>more demo.xsl
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; 
version="1.0">
<xsl:output encoding="iso-8859-1"/>

<xsl:template match="mailboxes">
  <xsl:apply-templates select="mailbox"/>
</xsl:template>

<xsl:template match="mailbox">
  <xsl:apply-templates select="mail">
    <xsl:with-param name="match_number" select="position()"/>
  </xsl:apply-templates>
</xsl:template>

<xsl:template match="mail">
  <xsl:param name="match_number"/>
  A <xsl:value-of select="$match_number"/>
</xsl:template>

</xsl:stylesheet>

[troi]~>java org.apache.xalan.xslt.Process -IN demo.xml -XSL demo.xsl -TEXT

  A 0
  A 0
  A 0
  A 0
  A 0

With call-template:

[troi]~>more demo2.xsl
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; 
version="1.0">
<xsl:output encoding="iso-8859-1"/>

<xsl:template match="mailboxes">
  <xsl:apply-templates select="mailbox"/>
</xsl:template>

<xsl:template match="mailbox">
  <xsl:call-template name="mail">
    <xsl:with-param name="match_number" select="position()"/>
  </xsl:call-template>
</xsl:template>

<xsl:template match="mail" name="mail">
  <xsl:param name="match_number"/>
  A <xsl:value-of select="$match_number"/>
</xsl:template>
</xsl:stylesheet>

[troi]~>java org.apache.xalan.xslt.Process -IN demo.xml -XSL demo2.xsl -TEXT

  A 1
  A 2
  A 3

Morten







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