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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))