#include "lib9.h" char*utfecpy(char *to, char *e, char *from){	char *end; 	if(to >= e)		return to;	end = memccpy(to, from, '\0', e - to);	if(end == nil){		end = e;		while(end>to && (*--end&0xC0)==0x80)			;		*end = '\0';	}else{		end--;	}	return end;}