[ISDP] 20170518 2nd midterm 2

Question

Please design a regular expression matches a date in yyyy-mm-dd format from 1900-01-01 through 2099-12-31. You can assume that every mouth has 31 days, and you don't have to consider leap year.

Answer 1

Hidden content!
** *** * * * ** ** *** * *** ******** *** ** *** *** * **** *** * *** * * * * *****

Answer 2

Hidden content!
* ** ** || 2]\d{1}[0 || * * * || ** * * * * * **** * **** * *** ***** * * $results)

Answer 3

Hidden content!
$input =~ *** * * ** *** *** ** * * * * ** ** *

Answer 4

Hidden content!
* * * ***** ** ** * **** * * *

Answer 5

Hidden content!
***** ** ** * * ****

Answer 6

Hidden content!
** ** ** ********* * ** * * * * ******

Answer 7

Hidden content!
* ** **** * ** * *




***


* **** **** ***
* * * * *****

if ** * **** * * **** * * **** ** ** ** ***** *** **
{
** **
*
** ** *
}


*

Answer 8

Hidden content!
* ** ** ** * * **** * ** * *

Answer 9

Hidden content!
* * *** * ***** ** ** * * ******* ******** * ** ****

Answer 10

Hidden content!
* * ***** *** ** ****** * ** * ** * * ** **** * ***** ** * *