Match switch case statemen in C++

subdirectory only

([!-\~]aeiou)

Are you pissed off with your regular expression homework? well then. here is the answer. ^([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))$

Regex validating yyyy-mm-dd or dd-mm-yyyy

In this case it is only =, but you can easily modify it to add more operators.

format (xxx) xxx-xxxx reg- /^\(\d{3}\) \d{3}-\d{4}$/

signed or unsigned numbers with exponents or not

6 character with 1 number and alphabet

Matches anything wrapped in parenthesis. Can handle nested and consecutive sets of parenthesis.