I would favor something like this:

while (<DATA>) {
    my ($test, $_) = /^(.+?):\s?([01]+)$/
        or do { warn "Line $. is invalid: $_"; next };

    print "$test $_: ",
        /^  (0+|1+)  $/x ? 'PASS'  :
        /^(1+0+|0+1+)$/x ? 'CLEAN' :
                           'FAIL', "\n";
}


__DATA__
test 1: 000000
test 2: 111111
test 3: 000011111
test 4: 1111111000
test 5:10001001110000011
..... so on

[download]

This outputs:

test 1 000000: PASS
test 2 111111: PASS
test 3 000011111: CLEAN
test 4 1111111000: CLEAN
test 5 10001001110000011: FAIL
Line 6 is invalid: ..... so on

[download]

In reply to Re: read string (which is in binary) and make decision by rjt
in thread read string (which is in binary) and make decision by hey_frind

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