print "$_: ", m[^\w+(?:\.\w+){0,2}$] ? 'matched' : 'failed'  
    for qw[ one one.two one.two.three one. one-two ];;
one:  matched
one.two:  matched
one.two.three:  matched
one.:  failed
one-two:  failed

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In reply to Re: Match Optional Groups with 1 Required Group by BrowserUk
in thread Match Optional Groups with 1 Required Group by rem45acp

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