^alpha:0123456789 	~!@#$%^&*(){}[]':;"<>,./?\+=_-`@alpha@
^digit:abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ 	~!@#$%^&*(){}[]':;"<>,./?\+=_-`@digit@
^alnum:~!@#$%^&*(){}[]':;"<>,./?\+=_-`@alnum@
^upper:abcdefghijklmnopqrstuvwxyz0123456789 	~!@#$%^&*(){}[]':;"<>,./?\+=_-`@upper@
^lower:ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEF 	~!@#$%^&*(){}[]':;"<>,./?\+=_-`@lower@
^space:abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEF~!@#$%^&*(){}[]':;"<>,./?\+=_-`@space@
^blank:abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEF~!@#$%^&*(){}[]':;"<>,./?\+=_-`@blank@
^punct:abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEF 	Z@punct@
^cntrl:abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEF~!@#$%^&*(){}[]':;"<>,./?\+=_-`@cntrl@
^xdigit:ghijklmnopqrstuvwxyzGHIJKLMNOPQRSTUVWXYZ 	~!@#$%^&*(){}[]':;"<>,./?\+=_-`@xdigit@
a-d:abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ@a-d@
l-xyz:abcdefghijklmnopqrstuvw@l-xyz@
abcd-bc:aaaaddddaaaa@abcd-bc@
abcde-b-c:aaaaddddeeee@abcde-b-c@
^XY-^XYZ:ZZZZZZZZZZZ@^XY-^XYZ@
a+d:abc0123xyz789@a+d@
a-u+Q:abcQQQQxyz@a-u+Q@
ia:AaAa@ia@
iabc:ABCabcAbCaBc@iabc@
ia-c:ABCabcAbCaBc@ia-c@
check-a:a@
dot-all-1:XXX junk
              junk
              junk
            @dot-all-1@
x1:abaabb@x1@
x2:abaabb@x2@