[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!
*** ** **** * *** ** * ***** ** ******* ** * * * *** ** * *** **** * **