RE: Elements just before/after the current one

Hi Nicolas,

When you are working with preceding-sibling you are working from the
perspective of a reverse axis so preceding-sibling::*[1] goes backwards
1 position, preceding-sibling::*[2] goes back 2 and so forth...  Some
quick XSLT to showcase this is...

XML:

<?xml version="1.0"?>
<foo>
  <bar>1</bar>
  <bar>2</bar>
  <bar>3</bar>
  <bar>4</bar>
  <bar>5</bar>
  <bar>6</bar>
  <bar>7</bar>
  <bar>8</bar>
</foo>

XSLT:

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="1.0">
<xsl:template match="/">
  <xsl:apply-templates select="foo/bar[8]"/>
</xsl:template>
<xsl:template match="bar">
  <xsl:value-of select="preceding-sibling::bar[3]"/>
</xsl:template>
</xsl:stylesheet>

Produces and output of:

5

Hope this helps!

<M:D/>

-----Original Message-----
From: Nicolas Pillot [mailto:nicolas(_dot_)pillot(_at_)polymtl(_dot_)ca]
Sent: Thursday, May 27, 2004 12:40 PM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Elements just before/after the current one


  Hello!

  I have a problem, as you can guess. I am struggling to find the

element

  that is just before, and the element just after the current one.

  What i am doing now for the element after the current one is :
     following-sibling::*[position() = 1]
  And this seems to work. But for the element just before, i tried
     following-sibling::*[last()]
  but this gives me the first (topmost) item instead of the last !
  So i debugged with :

      <xsl:variable name="prevcount">
              <xsl:value-of select="count(preceding-sibling::*)" />
      </xsl:variable>
      <xsl:for-each select="preceding-sibling::*">
              <xsl:element name="before">
                      <xsl:value-of select="."/> <!-- or name() -->
                      <xsl:value-of select="position()"/>
                      <xsl:if test="position() = $prevcount">
                              selected
                      </xsl:if>
              </xsl:element>
      </xsl:for-each>

  And the "selected" text appears right next to the good element.
  Then i tried the following to sum it up :

      <xsl:variable name="prevcount">
              <xsl:value-of select="count(preceding-sibling::*)" />
      </xsl:variable>
      <xsl:value-of select="preceding-sibling::*[position() =

$prevcount]"

/>

  But again, it give me the content of the first (topmost) node !!
  What am i doing wrong ?! Is there a simpler way to get these

"special"

items ?

  Any help would be greatly appreciated !
  Nicolas



--+------------------------------------------------------------------
XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail: 
<mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--+--