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  1. Qt
  2. QTBUG-64525

Regex does return null every second time it is executed

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      The following unit test shows a bug in regexp execution in QML. The first time the regexp is executed it matches and returns the matches. The second time null is returned.

      import QtQuick 2.0 
      import QtTest 1.0
      
      TestCase {
          name: "Regexp"
      
      
      
          function test_match() {
              var regexp = /CC_(\d+)/g;
              var data = "O__131458;OC_131444;C__131426;CC_131428;";
      
              verify(regexp.exec(data) !== null, "test regexp1");
              verify(regexp.exec(data) !== null, "test regexp2");
              verify(regexp.exec(data) !== null, "test regexp3");
              verify(regexp.exec(data) !== null, "test regexp4");
              verify(regexp.exec(data) !== null, "test regexp5");
          }
      }

       

      ********* Start testing of qmltest *********
      Config: Using QtTest library 5.6.2, Qt 5.6.2 (i386-little_endian-ilp32 shared (dynamic) debug build; by MSVC 2013)
      PASS   : qmltest::Regexp::initTestCase()
      FAIL!  : qmltest::Regexp::test_match() 'test regexp2' returned FALSE. ()
      C:\projects\gitRS\PROG-5.00\kratos\kratos\build-src-Desktop_Qt_5_6_2_MSVC2013_32bit-Debug\external_build\test\QmlTest\Debug\qml\test\general\tst_Regexp.qml(14) : failure location
      PASS   : qmltest::Regexp::cleanupTestCase()
      Totals: 2 passed, 1 failed, 0 skipped, 0 blacklisted
      ********* Finished testing of qmltest *********
      

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            shausman Simon Hausmann
            linux_fan_dave David Feurle
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              Created:
              Updated:
              Resolved:

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