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External Data Source

Source

Regular Expression
^(((0?[1-9]|[12]\d|3[01])\.(0[13578]|[13578]|1[02])\.((1[6-9]|[2-9]\d)\d{2}))|((0?[1-9]|[12]\d|30)\.(0[13456789]|[13456789]|1[012])\.((1[6-9]|[2-9]\d)\d{2}))|((0?[1-9]|1\d|2[0-8])\.0?2\.((1[6-9]|[2-9]\d)\d{2}))|(29\.0?2\.((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$