[antlr-interest] A challenging question

[丘成桐]

Hi ,I have a challenging question to ask you .  There are ten binary
data packets A,B,C,D,E,F.......
         packet A: "this  is a te"
         packet B: "st !"
         ......
I can not  put packets A and B together，what could I do to ask scanner
to find the "test" coming from packet A and B?

I am looking froward to your early reply.