Uucp.GcGeneral category property.
type t = [ | `Cc| `Cf| `Cn| `Co| `Cs| `Ll| `Lm| `Lo| `Lt| `Lu| `Mc| `Me| `Mn| `Nd| `Nl| `No| `Pc| `Pd| `Pe| `Pf| `Pi| `Po| `Ps| `Sc| `Sk| `Sm| `So| `Zl| `Zp| `Zs ]The type for general categories.
val pp : Format.formatter -> t -> unitpp ppf c prints an unspecified representation of c on ppf.
general_category u is u's General_Category property.