path: 'longest.java', dir = '', file = 'longest', ext = 'java'

path: 'longest.java.old', dir = '', file = 'longest', ext = 'java.old'

path: '/etc/passwd', dir = '/etc/', file = 'passwd', ext = ''

path: './../.../x', dir = './../.../', file = 'x', ext = ''

path: '/cs/www/classes/cs372/spring14/tester/Test.rb', dir = '/cs/www/classes/cs372/spring14/tester/', file = 'Test', ext = 'rb'

path: '/cs/www/classes/cs372/spring.14/tester/Test.rb', dir = '/cs/www/classes/cs372/spring.14/tester/', file = 'Test', ext = 'rb'

path: '/home/whm/.bashrc', dir = '/home/whm/', file = '', ext = 'bashrc'

path: 'x.y.z', dir = '', file = 'x', ext = 'y.z'

path: '/a.b/c.d./foods_and_colors.pl', dir = '/a.b/c.d./', file = 'foods_and_colors', ext = 'pl'

path: '.bashrc', dir = '', file = '', ext = 'bashrc'

path: '.bashrc.old', dir = '', file = '', ext = 'bashrc.old'

path: '/{}:{{}}/224088)(*)(*@)!#!!@!/----.***', dir = '/{}:{{}}/224088)(*)(*@)!#!!@!/', file = '----', ext = '***'