Mask-group

C Character Set



Types

Character Set

Uppercase Alphabets

A, B, C, ...Y, Z

Lowercase Alphabets

a, b, c,...y, z

Digits

o, 1, 2, 3,...9

Special Symbol

~ ' ! # % ^ & ( ) _ - + = | \ { } [ ] : ; " ' < > , . ? /

White spaces

Single space,  tab, new line.