Re: 1st previous node()

Play the video

Subject: Re: 1st previous node()
From: "Imsieke, Gerrit, le-tex" <gerrit.imsieke@xxxxxxxxx>
Date: Tue, 08 Feb 2011 07:58:52 +0100

On 2011-02-08 07:16, Karl Stubsjoen wrote:

XSL1.0
I need help finding the first previous node, skipping white space,
comments, etc.. I thought this might work, but I can't get it or
similar tries to work.

<xsl:variable name="previous" select="preceding::node()
    [not(comment())]
    [not(text())]
    [not(processing-instruction())]
    [1]"/>

This can be written as

    <xsl:variable name="previous" select="preceding::node()
       [not(child::comment())]
       [not(child::text())]
       [not(child::processing-instruction())]
       [1]"/>

which will select the text node immediately preceding X.

So you could write

    <xsl:variable name="previous" select="preceding::node()
       [not(self::comment())]
       [not(self::text())]
       [not(self::processing-instruction())]
       [1]"/>

which will yield

<M>
   <?skip me?>
   <!--skip me-->
  </M>

for the first example and nothing in the second (since X doesn't have a preceding element: an element has to be closed before X starts in order to qualify as preceding).

But as Patrick points out, this can of course be written as

<xsl:variable name="previous" select="preceding::*[1]"/>

You can get M in the first case and B in the second by declaring

<xsl:variable name="previous" select="(preceding-sibling::*[1], ..)[1]" />

which selects the immediately preceding sibling or, if there is no preceding sibling, the parent element.

-Gerrit

Given that<X> is the context node then I expect the previous node is<M>.
<A>
  <M>
    <?skip me?>
    
   </M>
   <X>  this is context node</X>
</A>
Given that<X> is the context node then I expect the previous node is<B>.
<A>
  <B>
   <X>  this is context node</X>
  </B>
</A>
--
Karl Stubsjoen
MeetScoresOnline.com
(602) 845-0006


--
Gerrit Imsieke
Geschdftsf|hrer / Managing Director
le-tex publishing services GmbH
Weissenfelser Str. 84, 04229 Leipzig, Germany
Phone +49 341 355356 110, Fax +49 341 355356 510
gerrit.imsieke@xxxxxxxxx, http://www.le-tex.de

Registergericht / Commercial Register: Amtsgericht Leipzig
Registernummer / Registration Number: HRB 24930

Geschdftsf|hrer: Gerrit Imsieke, Svea Jelonek,
Thomas Schmidt, Dr. Reinhard Vvckler

Current Thread
Re: 1st previous node(), (continued) Michael Kay - 8 Feb 2011 08:59:09 -0000 Karl Stubsjoen - 8 Feb 2011 10:18:55 -0000 Imsieke, Gerrit, le-tex - 8 Feb 2011 07:51:17 -0000 Szabo, Patrick \(LNG-VIE\) - 8 Feb 2011 08:03:05 -0000 Imsieke, Gerrit, le-tex - 8 Feb 2011 06:59:16 -0000 <= Christopher R. Maden - 8 Feb 2011 14:25:03 -0000

<- Previous	Index	Next ->
AW: AW: 1st previous node(), Szabo, Patrick \(LNG	Thread	Re: 1st previous node(), Christopher R. Maden
AW: 1st previous node(), Szabo, Patrick \(LNG	Date	Re: 1st previous node(), Karl Stubsjoen
	Month

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Subscribe in XML format

RSS 2.0
Atom 0.3

XML Editor - Download a 15 Day Free Trial Now >

See What's New in Stylus Studio >

Buy Stylus Studio - XML Editor - Now >