numeric = [0123456789] alpha = [ABCDEFGHIJKLMNOPQRSTUVWXYZ] alpha-numeric = [ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789] loweralpha = [abcdefghijklmnopqrstuvwxyz] loweralpha-numeric = [abcdefghijklmnopqrstuvwxyz0123456789] mixalpha = [abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ] mixalpha-numeric = [abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789] ascii-32-95 = [ !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~] ascii-32-65-123-4 = [ !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`{|}~] alpha-numeric-symbol32-space = [ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_+=~`[]{}|\:;"'<>,.?/ ]