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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: starts-with

Die starts-with-Funktion prüft, ob ein Item (das als String gecastet werden kann) mit einer bestimmten Zeichenfolge beginnt.

Da sie einen Boolean-Wert true() oder false() zurückgibt, kann sie sowohl im Rahmen von Fallunterscheidungen (xsl:if, xsl:choose) als auch als Prädikat in XPath eingesetzt werden.


<xsl:variable name="y" as="xs:string+">
  <xsl:for-each 
    select="('Meier', 'Schulze', 'Müller', 'Schmidt', 5)
            [starts-with(xs:string(.), 'Sch')]">
   <xsl:value-of select="."/>
  </xsl:for-each>
</xsl:variable>
<xsl:value-of select="string-join($y, '|')"/>

Resultat:


Schulze|Schmidt

Kann ein Item nicht automatisch als String gecastet werden, so wird ein Fehler generiert (s.u.). Daher empfiehlt sich zur Sicherheit (wie oben geschehen), ...

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Publisher Resources

ISBN: 9783958457560