Implement QRegularExpression overload for QPlainTextEdit::find

This patch adds the missing overload for QRegularExpression to match the
QRegExp one for QPlainTextEdit.

[ChangeLog][QtWidgets][QPlainTextEdit] Added QRegularExpression find()
method overload.

Change-Id: Id156971d3fa0372712bfa8b72a55550942a767e0
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>
Reviewed-by: David Faure <david.faure@kdab.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp b/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
index b66e30ad35..be19cbc9d1 100644
--- a/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
+++ b/tests/auto/widgets/widgets/qplaintextedit/tst_qplaintextedit.cpp
@@ -140,6 +140,11 @@ private slots:
     void findBackwardWithRegExp();
     void findWithRegExpReturnsFalseIfNoMoreResults();
 #endif
+#if QT_CONFIG(regularexpression)
+    void findWithRegularExpression();
+    void findBackwardWithRegularExpression();
+    void findWithRegularExpressionReturnsFalseIfNoMoreResults();
+#endif
     void layoutAfterMultiLineRemove();
     void undoCommandRemovesAndReinsertsBlock();
     void taskQTBUG_43562_lineCountCrash();
@@ -1582,6 +1587,45 @@ void tst_QPlainTextEdit::findWithRegExpReturnsFalseIfNoMoreResults()
 }
 #endif
 
+#if QT_CONFIG(regularexpression)
+void tst_QPlainTextEdit::findWithRegularExpression()
+{
+    ed->setPlainText(QStringLiteral("arbitrary text"));
+    QRegularExpression rx("\\w{2}xt");
+
+    bool found = ed->find(rx);
+
+    QVERIFY(found);
+    QCOMPARE(ed->textCursor().selectedText(), QStringLiteral("text"));
+}
+
+void tst_QPlainTextEdit::findBackwardWithRegularExpression()
+{
+    ed->setPlainText(QStringLiteral("arbitrary text"));
+    QTextCursor cursor = ed->textCursor();
+    cursor.movePosition(QTextCursor::End);
+    ed->setTextCursor(cursor);
+    QRegularExpression rx("a\\w*t");
+
+    bool found = ed->find(rx, QTextDocument::FindBackward);
+
+    QVERIFY(found);
+    QCOMPARE(ed->textCursor().selectedText(), QStringLiteral("arbit"));
+}
+
+void tst_QPlainTextEdit::findWithRegularExpressionReturnsFalseIfNoMoreResults()
+{
+    ed->setPlainText(QStringLiteral("arbitrary text"));
+    QRegularExpression rx("t.xt");
+    ed->find(rx);
+
+    bool found = ed->find(rx);
+
+    QVERIFY(!found);
+    QCOMPARE(ed->textCursor().selectedText(), QStringLiteral("text"));
+}
+#endif
+
 void tst_QPlainTextEdit::layoutAfterMultiLineRemove()
 {
     ed->setVisible(true); // The widget must be visible to reproduce this bug.