$ perl -le'
for ( qw/ ABCXYZ FOOXXXYZ FOOXXXBAR FOOXXXBAZ / ) {
    print if /^FOO.*(?<!BAR|BAZ)$/;
    }
'
FOOXXXYZ

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In reply to Re: Zero-width look-ahead regexp question by jwkrahn
in thread Zero-width look-ahead regexp question by rovf

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