From acadee710e00cca55736db864263bdcdcbac31a6 Mon Sep 17 00:00:00 2001
From: Christian Stenger <christian.stenger@qt.io>
Date: Fri, 7 Aug 2020 15:26:51 +0200
Subject: [PATCH] ProjectExplorer: Do not pass invalid regex to match

Change-Id: I9917c9fa7a79132c253269efde90976e18f9b805
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
---
 src/plugins/projectexplorer/customparserconfigdialog.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/plugins/projectexplorer/customparserconfigdialog.cpp b/src/plugins/projectexplorer/customparserconfigdialog.cpp
index 5584ae480af..f67cd25b9d9 100644
--- a/src/plugins/projectexplorer/customparserconfigdialog.cpp
+++ b/src/plugins/projectexplorer/customparserconfigdialog.cpp
@@ -278,7 +278,8 @@ bool CustomParserConfigDialog::checkPattern(QLineEdit *pattern, const QString &o
     pattern->setPalette(palette);
     pattern->setToolTip(rx.isValid() ? QString() : rx.errorString());
 
-    *match = rx.match(outputText);
+    if (rx.isValid())
+        *match = rx.match(outputText);
     if (rx.pattern().isEmpty() || !rx.isValid() || !match->hasMatch()) {
         *errorMessage = QString::fromLatin1("<font color=\"%1\">%2 ").arg(
                     Utils::creatorTheme()->color(Utils::Theme::TextColorError).name(),