/* * Copyright (C) 2005-2007 Mark Nudelman * * You may distribute under the terms of either the GNU General Public * License or the Less License, as specified in the README file. * * For more information about less, or for information on how to * contact the author, see the README file. */ #define IS_ASCII_OCTET(c) (((c) & 0x80) == 0) #define IS_UTF8_TRAIL(c) (((c) & 0xC0) == 0x80) #define IS_UTF8_LEAD2(c) (((c) & 0xE0) == 0xC0) #define IS_UTF8_LEAD3(c) (((c) & 0xF0) == 0xE0) #define IS_UTF8_LEAD4(c) (((c) & 0xF8) == 0xF0) #define IS_UTF8_LEAD5(c) (((c) & 0xFC) == 0xF8) #define IS_UTF8_LEAD6(c) (((c) & 0xFE) == 0xFC) #define IS_UTF8_INVALID(c) (((c) & 0xFE) == 0xFE) #define IS_UTF8_LEAD(c) (((c) & 0xC0) == 0xC0 && !IS_UTF8_INVALID(c))