I do not understand your specification. You state that I want only the patterns that has more than 2 consecutive 1's in the string, no all 0's, no "010110" cases.

Please elaborate what you mean by "no all 0's" (a string that has more than 2 consecutive 1's can not have all 0's). Also what do you mean by "no '010110' cases"? ("010110" does not have more than 2 consecutive 1's).

You say that the output should be "01110","111". I assume you meant that "111" should be "1111" since "111" is not in the array.

Also please explain why "01001110" should not match. It contains 3 consecutive 1's.

The following regular expression works for your listed requirements (although I suspect that the requirements are not exhaustive).

if($string =~ /([01]*111[01]*)/){
    print "$string\n"
}
#output
#01110
#1111
#01001110

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In reply to Re: matching pattern question? by zek152
in thread matching pattern question? by BhariD

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