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Why on earth ... ? Well, why not ...

/(?=\d{4}-\d\d-\d\d) # Date format (?=.{8}(?:0[1-9]|[12]\d|3[01])) # Day 01-31 (?=.{5}(?:0[1-9]|1[0-2])) # Month 01-12 (?!.{5}(?:0[2469]|11)-31) # Not 31 days in those months (?!.{5}02-30) # Never 30 days in Feb (?!...[13579]-02-29) # Not a leap year (?!..[13579][048]-02-29) # -"- (?!..[02468][26]-02-29) # -"- (?!.[13579]00-02-29) # -"- (?![13579][048]00-02-29) # -"- (?![02468][26]00-02-29) # -"- /x

print "Just another Perl ${\(trickster and hacker)},"
The Sidhekin proves Sidhe did it!

In reply to Re: Date Validation using just a regex by Sidhekin
in thread Date Validation using just a regex by Ananda

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