8.18 (Regular Expression: Password Format Validator) Search online for secure password recommendations, then research existing regular expressions that validate secure passwords. Two examples of password requirements are: Passwords must contain at least five words, each separated by a hyphen, a space, a period, a comma or an underscore. Passwords must have a minimum of 8 characters and contain at least one each from uppercase characters, lowercase characters, digits and punctuation characters (such as characters in '!@#$%<^>&*?'). Write regular expressions for each of the two requirements above, then use them to test sample passwords.

8.18 (Regular Expression: Password Format Validator) Search online for secure password recommendations, then research existing regular expressions that validate secure passwords. Two examples of password requirements are: Passwords must contain at least five words, each separated by a hyphen, a space, a period, a comma or an underscore. Passwords must have a minimum of 8 characters and contain at least one each from uppercase characters, lowercase characters, digits and punctuation characters (such as characters in '!@#$%<^>&*?'). Write regular expressions for each of the two requirements above, then use them to test sample passwords.