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19 lines
717 B
C
19 lines
717 B
C
/*
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* Copyright (C) 1984-2023 Mark Nudelman
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Less License, as specified in the README file.
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*
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* For more information, see the README file.
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*/
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#define IS_ASCII_OCTET(c) (((c) & 0x80) == 0)
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#define IS_UTF8_TRAIL(c) (((c) & 0xC0) == 0x80)
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#define IS_UTF8_LEAD2(c) (((c) & 0xE0) == 0xC0)
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#define IS_UTF8_LEAD3(c) (((c) & 0xF0) == 0xE0)
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#define IS_UTF8_LEAD4(c) (((c) & 0xF8) == 0xF0)
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#define IS_UTF8_LEAD5(c) (((c) & 0xFC) == 0xF8)
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#define IS_UTF8_LEAD6(c) (((c) & 0xFE) == 0xFC)
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#define IS_UTF8_INVALID(c) (((c) & 0xFE) == 0xFE)
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#define IS_UTF8_LEAD(c) (((c) & 0xC0) == 0xC0 && !IS_UTF8_INVALID(c))
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