[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

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Answer 2

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

Answer 3

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$input =~ * ** * * ***** * * * * **** ***** * * * **

Answer 4

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

Answer 5

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

Answer 6

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Answer 7

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




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{
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}


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Answer 8

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

Answer 9

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

Answer 10

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