Annotation of src/usr.bin/less/charset.h, Revision 1.3
1.1 shadchin 1: /*
1.2 nicm 2: * Copyright (C) 1984-2012 Mark Nudelman
1.3 ! nicm 3: * Modified for use with illumos by Garrett D'Amore.
! 4: * Copyright 2014 Garrett D'Amore <garrett@damore.org>
1.1 shadchin 5: *
6: * You may distribute under the terms of either the GNU General Public
7: * License or the Less License, as specified in the README file.
8: *
1.2 nicm 9: * For more information, see the README file.
1.1 shadchin 10: */
1.3 ! nicm 11:
1.2 nicm 12: #define IS_ASCII_OCTET(c) (((c) & 0x80) == 0)
13: #define IS_UTF8_TRAIL(c) (((c) & 0xC0) == 0x80)
14: #define IS_UTF8_LEAD2(c) (((c) & 0xE0) == 0xC0)
15: #define IS_UTF8_LEAD3(c) (((c) & 0xF0) == 0xE0)
16: #define IS_UTF8_LEAD4(c) (((c) & 0xF8) == 0xF0)
17: #define IS_UTF8_LEAD5(c) (((c) & 0xFC) == 0xF8)
18: #define IS_UTF8_LEAD6(c) (((c) & 0xFE) == 0xFC)
19: #define IS_UTF8_INVALID(c) (((c) & 0xFE) == 0xFE)
20: #define IS_UTF8_LEAD(c) (((c) & 0xC0) == 0xC0 && !IS_UTF8_INVALID(c))