December 2009
Intermediate to advanced
560 pages
15h 5m
German
Content preview from Reguläre Ausdrücke KochbuchBecome 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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3.6 Auf eine vollständige Übereinstimmung einer Regex mit einem Text prüfen
Problem
Sie wollen prüfen, ob ein String komplett zu einem bestimmten Muster passt. Das heißt, Sie wollen sicherstellen, dass der reguläre Ausdruck, der das Muster enthält, den String vom Anfang bis zum Ende abdecken kann. Wenn Ihre Regex zum Beispiel ‹Regex⋅Muster› ist, wird der Text Regex-Muster gefunden, aber nicht der längere String Das Regex-Muster kann gefunden werden.
Lösung
C#
Für schnelle Tests, die nur einmal durchgeführt werden sollen, können Sie den statischen Aufruf verwenden:
bool foundMatch = Regex.IsMatch(subjectString, @"\ARegex-Muster\Z");Um die gleiche Regex mehrfach einzusetzen, erstellen Sie ein Regex-Objekt:
Regex regexObj = new Regex(@"\ARegex-MusterBecome 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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