#pragma once enum {	Runeself = 0x80,	Runesync = Runeself,	Runeerror = 0xfffd,	Runemax = 0x10ffff,	Runemask = 0x1fffff,	UTFmax = 4,}; int chartorune(Rune *rune, const char *str);int runetochar(char *str, const Rune *rune);int runenlen(const Rune *r, int nrune);int fullrune(const char *str, int n);int runelen(Rune c);Rune tolowerrune(Rune c);Rune toupperrune(Rune c);Rune totitlerune(Rune c);int islowerrune(Rune c);int isupperrune(Rune c);int isalpharune(Rune c);int istitlerune(Rune c);int isspacerune(Rune c);int isdigitrune(Rune c); const char *utfrune(const char *s, Rune c);int utflen(const char *s);int utfnlen(const char *s, long m);