$ pm_parse_stdin.pl
19-9-2013
Not DD-MM-YYYY format
19/9/2013
Not DD-MM-YYYY format
30-02-2013
... day='30' month='02' year='2013' ...
99-99-9999
... day='99' month='99' year='9999' ...
19-09-2013
... day='19' month='09' year='2013' ...
19-09-20133
Not DD-MM-YYYY format