a-z a single character in the range between a (index 97) and z (index 122) (case sensitive)
A-Z a single character in the range between A (index 65) and Z (index 90) (case sensitive)
0-9 a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
; matches the character ; literally (case sensitive)
=-\\ a single character in the range between = (index 61) and \ (index 92) (case sensitive)
\\ matches the character \ literally (case sensitive)
\/ matches the character / literally (case sensitive)