May 2018
Intermediate to advanced
680 pages
15h 54m
German
Content preview from XML -- Technologien, Grundlagen, Validierung, Auswertung
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XPath: distinct-values
Die XPath-Funktion distinct-values löscht mehrfache identische Einträge in einer Sequenz und reduziert die Ausgabe auf Einzelresultate.
Wenn es darum geht, mehrfach vorkommende Einzelwerte zu gruppieren, als so zusammenzufassen, dass sie jeweils nur einmal auftreten, steht auch die Funktion distinct-values zur Verfügung.
<xsl:for-each select="distinct-values(//Kauf/bez)">
<Artikel name="{.}"/>
</xsl:for-each>
Als Ergebnis finden Sie:
<Artikel name="Hemd"/>
<Artikel name="Hose"/>
<Artikel name="Schuhe"/>
Freilich geht in diesem Moment der Zugriff auf die Datenquelle verloren:
<xsl:for-each select="distinct-values(//Kauf/bez)"> <xsl:variable name="vartikel" select="."/> <Artikel name="{$vartikel}"> <xsl:for-each select="//Mensch[Kauf/bez=$vartikel]"> ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.