tests/regex/datafiles/tre-bugs.dat

   1 E       (a|b|\|)                |               (0,1)(0,1)
   2 B       \\(^                    \(^             (0,3)
   3 B       a*+                     aa+             (0,3)
   4 B       a\{2\}+                 aa+             (0,3)
   5 EH      \Q\t*\E                 \t*             (0,3)
   6 EH      \Q\\t*\E                \\t*            (0,4)