You don't need to use a regex here. Here's a function I use frequently: 
sub name_join {
    return '' unless @_;
    return $_[0] if 1 == @_;
    return join ', ', @_[0 .. $#_ - 2], "$_[-2] and $_[-1]";
}

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In reply to Re: Non-greedy substitution by sleet
in thread Non-greedy substitution by Bod

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