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