Re: Question about keys and cross-referencing (was pre

Play the video

Subject: Re: Question about keys and cross-referencing (was predicate)
From: Chris Loschen <loschen@xxxxxxxxxxxxx>
Date: Mon, 05 May 2003 15:33:49 -0400

This discussion of keys and predicates raises an issue I had been pondering. I've working on some documents where the cross-references are entered but without the target specified. I've got ids on each of the main entries (which will be the targets), but I need to look them up in order to find the right things.

So I've got an input structure like this:

<e eid="e0001"><hg><hw>keyword</hw></hg><se1>...</se1></e> ... <e eid="e1234"><hg><hw>different_keyword</hw></hg><se1>... <xg>See also <xr>keyword</xr></xg>...</se1></e>

where the <xr> element "keyword" needs to link to the <e> element where the <hw> is "keyword".

I'm thinking that I can set up a key like

<xsl:key name="headwords" match="hw" use="ancestor::e/@eid" />

and then reference it in my xr template like

<xsl:attribute name="href"><xsl:text>#</xsl:text><xsl:apply-templates select="key('headwords',ancestor::e/@eid)" /></xsl:attribute>

Does that sound right?

Now, an additional twist:

Sometimes I've got several headwords that are identical except for the homograph numbers, like so:

<e eid="e0003"><hg><hw>keyword</hw><hom>1</hom></hg><se1>...</se1></e>
<e eid="e0004"><hg><hw>keyword</hw><hom>2</hom></hg><se1>...</se1></e>
<e eid="e0005"><hg><hw>keyword</hw><hom>3</hom></hg><se1>...</se1></e>

and these are referenced like so:

<e eid="e2345"><hg><hw>different_keyword</hw></hg>... <xg>See also <xr>keyword</xr><hom>1</hom></xg>...</e>

Is there a way to include those homograph numbers in the key and in the cross-reference so that I get the correct (I hope unique) link?

Thanks again for all of your help!

At 12:35 PM 5/5/03, you wrote:

Didier,

You want the current() function, which returns the current node (typically the node that has matched the template) irrespective of what the context node happens to be (e.g. inside a predicate, where the context node has changed).

So: <xsl:apply-templates select="//rdf:description[@about=current()/@xlink:href]" />

But you'd get better performance using a key:

<xsl:key name="descs-by-about" match="rdf:description" use="@about"/>

Then

<xsl:apply-templates select="key('descs-by-about',@xlink:href)"/>
Enjoy,
Wendell

--Chris

---------------------------------------------------------------------------------------- Texterity ~ XML and PDF ePublishing Services ---------------------------------------------------------------------------------------- Chris Loschen, XML Developer Texterity, Inc. 144 Turnpike Road Southborough, MA 01772 USA tel: +1.508.804.3033 fax: +1.508.804.3110 email: loschen@xxxxxxxxxxxxx http://www.texterity.com/

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

Current Thread

Question about predicate
- Didier PH Martin - Mon, 5 May 2003 12:07:55 -0400 (EDT)
  - Wendell Piez - Mon, 5 May 2003 12:37:46 -0400 (EDT)
    - Chris Loschen - Mon, 5 May 2003 15:34:16 -0400 (EDT) <=
      - Wendell Piez - Mon, 5 May 2003 16:30:12 -0400 (EDT)
      - Chris Loschen - Mon, 5 May 2003 17:14:26 -0400 (EDT)
    - Didier PH Martin - Mon, 5 May 2003 19:40:42 -0400 (EDT)
  - <Possible follow-ups>
  - Adam van den Hoven - Mon, 5 May 2003 12:44:38 -0400 (EDT)

<- Previous	Index	Next ->
Re: Question about predicate, Wendell Piez	Thread	Re: Question about keys and c, Wendell Piez
Re: Can I force XSLT to outpu, Chris Loschen	Date	Re: Question about keys and c, Wendell Piez
	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 >