Interesting. Here is one example of what this does: 
testing: "k5bai"
0: ^.5BAI$
1: ^K.BAI$
2: ^K5.AI$
3: ^K5B.I$
4: ^K5BA.$
5: .*5BAI\z
6: ^K5ABI\z  <-N2 error
7: ^K5BIA\z  <-N2 error
8: ^K5IBA\z  <- really bad
9: ^K5AIB\z
10: ^KB5AI\z
11: ^K5BA\z
12: ^K5BI\z
13: ^K5AI\z
14: ^K5B\z
my regex = (^.5BAI$)|(^K.BAI$)|(^K5.AI$)|(^K5B.I$)|(^K5BA.$)|(.*5BAI\z
+)|(^K5ABI\z)|(^K5BIA\z)|(^K5IBA\z)|(^K5AIB\z)|(^KB5AI\z)|(^K5BA\z)|(^
+K5BI\z)|(^K5AI\z)|(^K5B\z)

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Instead of running for each @tokens, I suspect that it would be faster to run the regex against a single string of the concatenation of all of the tokens.

I haven't thought about this code for many moons. Time for a re-think.

In reply to Re^2: Multi-thread combining the results together by Marshall
in thread Multi-thread combining the results together by Marshall

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