QRegExp emailPattern = new QRegExp("([\\w\\.]*@[\\w\\.]*)");
String leftString = leftData.toString();
if(left.column() == 1 && emailPattern.indexIn(leftString) != -1)
leftString = emailPattern.cap(1);
String rightString = rightData.toString();
if(right.column() == 1 && emailPattern.indexIn(rightString) != -1)
rightString = emailPattern.cap(1);