Simple Date format not matched

[gjois]

Please check this site for example: https://regex101.com/r/ZqMTdp/1
the same input to your sample program is not giving the match. Am I missing something?
I'm really a newbie in regexp.

[kokke]

Hi @gjois and thanks for the question

Currently, quantifier-operators are unsupported, and your regular expression is using those operators.

In this regular expression: \d{4}-\d{2}-\d{2} <-- the quantifiers are {4}, {2} and {2}.

You should be able to achieve the same result with this pattern: \d\d\d\d-\d\d-\d\d.

[kokke]

This fork has support for quantifiers: #23