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document() merge DISTINCT
- From: "Alex Schuetz" <asc at ala dot de>
- To: <XSL-List at lists dot mulberrytech dot com>
- Date: Wed, 19 Dec 2001 10:30:56 +0100
- Subject: [xsl] document() merge DISTINCT
- Organization: SSH
- Reply-to: xsl-list at lists dot mulberrytech dot com
Hallo;
I have some input files with the /person/@id attribute being unique in each
file (and /project).
input.xml
--------------------------------------------------------------
<project name="some-name">
<person id="1" name="name1"/>
<person id="5" name="other-name"/>
<preson id="20" name ="another-name"/>
</project>
------------------------------------------------
I want to merge these files so that I get a list of all <person> that are in
any <project> but the preson/@id should be unique, that is, no <person>
element should be listed twice.
In the book 'XSLT' from Dough Tidwell (chapter 7) there is an example that
works but is using a lot of disk reads and deep recursion.
It goes like this:
1: build a variable var1 as a white-space separated sorted list of all @id .
(using <xsl:for-each select="document(...)"..../> )
2: build a variable var2 of unique @id from var1 (by recursion);
3: with var2 call a template that calls <xsl:for-each select=
"document(....)"../> for each id in var2 and produces the output.
Is there a better way to do this?
-Alex
asc@ala.de
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