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Annotation of src/usr.bin/less/charset.h, Revision 1.1.1.2

1.1       shadchin    1: /*
1.1.1.2 ! shadchin    2:  * Copyright (C) 1984-2012  Mark Nudelman
1.1       shadchin    3:  *
                      4:  * You may distribute under the terms of either the GNU General Public
                      5:  * License or the Less License, as specified in the README file.
                      6:  *
1.1.1.2 ! shadchin    7:  * For more information, see the README file.
1.1       shadchin    8:  */
                      9:
                     10: #define IS_ASCII_OCTET(c)   (((c) & 0x80) == 0)
                     11: #define IS_UTF8_TRAIL(c)    (((c) & 0xC0) == 0x80)
                     12: #define IS_UTF8_LEAD2(c)    (((c) & 0xE0) == 0xC0)
                     13: #define IS_UTF8_LEAD3(c)    (((c) & 0xF0) == 0xE0)
                     14: #define IS_UTF8_LEAD4(c)    (((c) & 0xF8) == 0xF0)
                     15: #define IS_UTF8_LEAD5(c)    (((c) & 0xFC) == 0xF8)
                     16: #define IS_UTF8_LEAD6(c)    (((c) & 0xFE) == 0xFC)
                     17: #define IS_UTF8_INVALID(c)  (((c) & 0xFE) == 0xFE)
                     18: #define IS_UTF8_LEAD(c)     (((c) & 0xC0) == 0xC0 && !IS_UTF8_INVALID(c))