Need output result for input

Hi Experts,

Need output result for input:-

Please consider input as below:--
COMPRESS(NULL,'2008-06-30','2009-07-03'),
COMPRESS('2014-04-30'),
COMPRESS('P465','P4760'),
COMPRESS('','0','3'),

Expecting output as below(i.e only need to add 'DATE' keyword before date type data('yyyy-mm-dd') and rest all formats it should skip as below) :--

COMPRESS(NULL,DATE'2008-06-30',DATE'2009-07-03'),
COMPRESS(DATE'2014-04-30'),
COMPRESS('P465','P4760'),
COMPRESS('','0','3'),


Thanks in Advance Experts.......