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XML -- Technologien, Grundlagen, Validierung, Auswertung
book

XML -- Technologien, Grundlagen, Validierung, Auswertung

by Wilfried Grupe
May 2018
Intermediate to advanced
680 pages
15h 54m
German
mitp Verlag
Content preview from XML -- Technologien, Grundlagen, Validierung, Auswertung

XPath: one-or-more

Die Funktion one-or-more überprüft, ob eine Sequenz überhaupt Inhalte hat: Mindestens ein Item muss vorhanden sein.

Der folgende Aufruf gibt daher problemlos eine Liste aller Vornamen zurück:


<xsl:for-each 
     select="one-or-more(//Mensch/vorname/text())">
  <wert><xsl:value-of select="."/></wert>
</xsl:for-each>

Dagegen läuft der Aufruf one-or-more(//Mensch/hobby/text()) auf einen Fehler An empty sequence is not allowed ..., da das Child-Element hobby nicht existiert.


<xsl:for-each 
     select="one-or-more(//Mensch/hobby/text())">
  <wert><xsl:value-of select="."/></wert>
</xsl:for-each>

Ergebnis:


Fehlerlevel: fatal
Beschreibung: FORG0004: An empty sequence is not allowed 
as the first argument of one-or-more()
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Publisher Resources

ISBN: 9783958457560