Whatcha talking about? 
                                            NOT /XYZ/
                                          vvvvvvvvvvvvv
>perl -e "$_ = 'ABCDEFGHIJKL'; print(/ABC((?:(?!XYZ).)*)JKL/);"
DEFGHI

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In reply to Re^3: Boolean operators in PERL regexp? by ikegami
in thread Boolean operators in PERL regexp? by lenrobert

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