The example you have given is invalid, as offsets should always refer to the
original position in the source stream, so should be:
a(0,1,1) b(2,3,1) a(6,7,1) c(11,12,1).
Deng: I'm afraid that if (case1) index "axxxb", and then I search "axb" or
(case2) index "axb" and then search "ab", which
I do not understand your request completely, maybe you tell us some more
requirements of your implementation.
The example you have given is invalid, as offsets should always refer to the
original position in the source stream, so should be:
a(0,1,1) b(2,3,1) a(6,7,1) c(11,12,1).
The second probl