From 4d3b1841ceab56c30b4d9d700382066eecdf093f Mon Sep 17 00:00:00 2001
From: Matthias Kuhn <matthias.kuhn@gmx.ch>
Date: Mon, 13 May 2013 09:58:59 +0200
Subject: [PATCH] [Fix #7798] (I)LIKE operator escapes regexp characters before
 computing regexp

---
 src/core/qgsexpression.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/core/qgsexpression.cpp b/src/core/qgsexpression.cpp
index 56856cacb74b..f4a6e5e096b6 100644
--- a/src/core/qgsexpression.cpp
+++ b/src/core/qgsexpression.cpp
@@ -1936,10 +1936,11 @@ QVariant QgsExpression::NodeBinaryOperator::eval( QgsExpression* parent, QgsFeat
         bool matches;
         if ( mOp == boLike || mOp == boILike || mOp == boNotLike || mOp == boNotILike ) // change from LIKE syntax to regexp
         {
+          QString esc_regexp = QRegExp::escape( regexp );
           // XXX escape % and _  ???
-          regexp.replace( "%", ".*" );
-          regexp.replace( "_", "." );
-          matches = QRegExp( regexp, mOp == boLike || mOp == boNotLike ? Qt::CaseSensitive : Qt::CaseInsensitive ).exactMatch( str );
+          esc_regexp.replace( "%", ".*" );
+          esc_regexp.replace( "_", "." );
+          matches = QRegExp( esc_regexp, mOp == boLike || mOp == boNotLike ? Qt::CaseSensitive : Qt::CaseInsensitive ).exactMatch( str );
         }
         else
         {