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