May 2018
Intermediate to advanced
680 pages
15h 54m
German
Content preview from XML -- Technologien, Grundlagen, Validierung, Auswertung
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XPath: substring-before
Die substring-before-Funktion liefert aus einem gegebenen String jenen Teil, der vor dem Auftreten eines zweiten Parameters liegt.
Beispiel: Aus einem Zeitstempel "2018-01-07T20:00:56.106+01:00" soll der Datumsteil vor "T" ausgelesen werden.
Wichtig ist, dass der erste Parameter vom System auch als String betrachtet wird, was im unten beschriebenen Fall nicht zutrifft. Hier ist die Variable "vJetzt" vom Typ xs:dateTime, der erst in einen string konvertiert werden muss (string($vJetzt), bevor er mit substring-before weiterverarbeitet werden kann.
<xsl:variable name="vJetzt" select="current-dateTime()" as="xs:dateTime"/> <jetzt> <xsl:value-of select="$vJetzt"/> </jetzt> <Datum> <xsl:value-of select="substring-before(string($vJetzt), ...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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