s1 regexp s2
1
1
1
1
1
1
1
0
0
0
NULL
NULL
NULL
NULL
xxx
this is a test of some long text to see what happens
xxx
this is a test of some long text to see what happens
xxx
this is a test of some long text to see what happens
xxx
this is a test of some long text to see what happens
xxx
this is some text: to test - out.reg exp (22/45)