From a96c23fff11de9d2aafee5cdd17925954d94dcbe Mon Sep 17 00:00:00 2001
From: Le Tan <tamlokveer@gmail.com>
Date: Fri, 31 Aug 2018 20:08:33 +0800
Subject: [PATCH] Editor: fix hang bug in QTextEdit's find()

---
 src/veditor.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/veditor.cpp b/src/veditor.cpp
index 0b66c6e1..f8fccf11 100644
--- a/src/veditor.cpp
+++ b/src/veditor.cpp
@@ -616,6 +616,12 @@ bool VEditor::findTextHelper(const QString &p_text,
     QRegExp exp;
     if (p_options & FindOption::RegularExpression) {
         useRegExp = true;
+        // FIXME: hang bug in Qt's find().
+        QRegExp test("[$^]+");
+        if (test.exactMatch(p_text)) {
+            return false;
+        }
+
         exp = QRegExp(p_text,
                       caseSensitive ? Qt::CaseSensitive : Qt::CaseInsensitive);
     }