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58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include "macro.h"
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#define UTF8_REPLACEMENT_CHARACTER "\xef\xbf\xbd"
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bool unichar_is_valid(uint32_t c);
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const char *utf8_is_valid(const char *s) _pure_;
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char *ascii_is_valid(const char *s) _pure_;
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bool utf8_is_printable_newline(const char* str, size_t length, bool newline) _pure_;
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#define utf8_is_printable(str, length) utf8_is_printable_newline(str, length, true)
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char *utf8_escape_invalid(const char *s);
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char *utf8_escape_non_printable(const char *str);
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size_t utf8_encode_unichar(char *out_utf8, uint32_t g);
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char *utf16_to_utf8(const void *s, size_t length);
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int utf8_encoded_valid_unichar(const char *str);
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int utf8_encoded_to_unichar(const char *str);
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static inline bool utf16_is_surrogate(uint16_t c) {
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return (0xd800 <= c && c <= 0xdfff);
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}
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static inline bool utf16_is_trailing_surrogate(uint16_t c) {
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return (0xdc00 <= c && c <= 0xdfff);
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}
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static inline uint32_t utf16_surrogate_pair_to_unichar(uint16_t lead, uint16_t trail) {
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return ((lead - 0xd800) << 10) + (trail - 0xdc00) + 0x10000;
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}
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