3 files changed, 24 insertions, 2 deletions
diff --git a/src/corelib/tools/qregularexpression.cpp b/src/corelib/tools/qregularexpression.cpp
index 1bd06a73cd..6f0e572f41 100644
--- a/src/corelib/tools/qregularexpression.cpp
+++ b/src/corelib/tools/qregularexpression.cpp
@@ -483,6 +483,11 @@ QT_BEGIN_NAMESPACE
     Note the usage of the non-capturing group in order to preserve the meaning
     of the branch operator inside the pattern.
 
+    The QRegularExpression::anchoredPattern() helper method does exactly that for
+    you.
+
+    \sa anchoredPattern
+
     \section3 Porting from QRegExp's Partial Matching
 
     When using QRegExp::exactMatch(), if an exact match was not found, one
@@ -1995,6 +2000,17 @@ QString QRegularExpression::wildcardToRegularExpression(const QString &pattern)
 }
 
 /*!
+    \fn QRegularExpression::anchoredPattern(const QString &expression)
+
+    \since 5.12
+
+    Returns the expression wrapped between the \c{\A} and \c{\z} anchors to be
+    used for exact matching.
+
+    \sa {Porting from QRegExp's Exact Matching}
+*/
+
+/*!
     \since 5.1
 
     Constructs a valid, empty QRegularExpressionMatch object. The regular
diff --git a/src/corelib/tools/qregularexpression.h b/src/corelib/tools/qregularexpression.h
index 388aa7a8ca..f9e7029550 100644
--- a/src/corelib/tools/qregularexpression.h
+++ b/src/corelib/tools/qregularexpression.h
@@ -142,6 +142,12 @@ public:
 
     static QString escape(const QString &str);
     static QString wildcardToRegularExpression(const QString &str);
+    static inline QString anchoredPattern(const QString &expression)
+    {
+        return QLatin1String("\\A(?:")
+               + expression
+               + QLatin1String(")\\z");
+    }
 
     bool operator==(const QRegularExpression &re) const;
     inline bool operator!=(const QRegularExpression &re) const { return !operator==(re); }
diff --git a/src/corelib/tools/qstringlist.cpp b/src/corelib/tools/qstringlist.cpp
index e9b7397a74..712ba74716 100644
--- a/src/corelib/tools/qstringlist.cpp
+++ b/src/corelib/tools/qstringlist.cpp
@@ -692,7 +692,7 @@ int QtPrivate::QStringList_indexOf(const QStringList *that, const QRegularExpres
     if (from < 0)
         from = qMax(from + that->size(), 0);
 
-    QString exactPattern = QLatin1String("\\A(?:") + re.pattern() + QLatin1String(")\\z");
+    QString exactPattern = QRegularExpression::anchoredPattern(re.pattern());
     QRegularExpression exactRe(exactPattern, re.patternOptions());
 
     for (int i = from; i < that->size(); ++i) {
@@ -722,7 +722,7 @@ int QtPrivate::QStringList_lastIndexOf(const QStringList *that, const QRegularEx
     else if (from >= that->size())
         from = that->size() - 1;
 
-    QString exactPattern = QLatin1String("\\A(?:") + re.pattern() + QLatin1String(")\\z");
+    QString exactPattern = QRegularExpression::anchoredPattern(re.pattern());
     QRegularExpression exactRe(exactPattern, re.patternOptions());
 
     for (int i = from; i >= 0; --i) {