1238730Sdelphij/* 2238730Sdelphij * Copyright (C) 1984-2012 Mark Nudelman 3238730Sdelphij * 4238730Sdelphij * You may distribute under the terms of either the GNU General Public 5238730Sdelphij * License or the Less License, as specified in the README file. 6238730Sdelphij * 7238730Sdelphij * For more information, see the README file. 8238730Sdelphij */ 9161475Sdelphij 10161475Sdelphij#define IS_ASCII_OCTET(c) (((c) & 0x80) == 0) 11161475Sdelphij#define IS_UTF8_TRAIL(c) (((c) & 0xC0) == 0x80) 12161475Sdelphij#define IS_UTF8_LEAD2(c) (((c) & 0xE0) == 0xC0) 13161475Sdelphij#define IS_UTF8_LEAD3(c) (((c) & 0xF0) == 0xE0) 14161475Sdelphij#define IS_UTF8_LEAD4(c) (((c) & 0xF8) == 0xF0) 15161475Sdelphij#define IS_UTF8_LEAD5(c) (((c) & 0xFC) == 0xF8) 16161475Sdelphij#define IS_UTF8_LEAD6(c) (((c) & 0xFE) == 0xFC) 17161475Sdelphij#define IS_UTF8_INVALID(c) (((c) & 0xFE) == 0xFE) 18161475Sdelphij#define IS_UTF8_LEAD(c) (((c) & 0xC0) == 0xC0 && !IS_UTF8_INVALID(c)) 19