Re: A Counter Variable in XSLT?

> Thanks folks for your replies.
>
> > But you need
> > to say what it is
> > you want to do before anyone can show the xslt equivalent)
> >
>
> What I want to do:
>
> My stylesheet consists of one template rule.  When there is a
> match, I want a line in the output  to say, for example, "Match #
> 123:", followed by relevant text.  Since I don't know ahead of
> time how many matches there will be in the source document,
> somehow the stylesheet needs to keep a count.  Something like:
>
> <?xml version="1.0"?>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>   <xsl:output method="text"/>
>   <xsl:template match="/*">
> <xsl:if test="@col">
>       Match # n : <!-- n is the nth match, the thing that needs to
> be incremented -->
>       Collection: "<xsl:value-of select="@col"/>"
>       Content: <xsl:value-of select="."/>
>       </xsl:if>
>   </xsl:template>
> </xsl:stylesheet>

In your case you only need to count the nodes which are before the current
node:

<xsl:value-of select="count(preceding-sibling::*[@col]) + 1"/>

> > You need to unlearn procedural programming! XSLT is a
> > declarative,
> > functional language.
>
> I am willing!  Just what is meant by "declarative, functional"?
>
> >3. If neither of options 1 or 2 is suitable, you can probably
> count what you
> >want by using a recursive named template.
>
> Just what is a "recursive named template"?

an example:

<xsl:template match="/">
    <xsl:call-template name="count-down">
        <xsl:with-param name="counter">10</xsl:with-param>
    </xsl:call-template>
</xsl:template>

<xsl:template name="count-down">
    <xsl:param name="counter"/>
    <xsl:value-of select="$counter"/>
    <xsl:if test="$counter > 0">
        <xsl:call-template name="count-down">
            <xsl:with-param name="counter" select="$counter - 1"/>
        </xsl:call-template>
    </xsl:if>
</xsl:template>

> Thank you for your input,
>
> Grant Mc Auley


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