52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <uchar.h>
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#include "macro.h"
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#include "missing.h"
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#define UTF8_REPLACEMENT_CHARACTER "\xef\xbf\xbd"
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#define UTF8_BYTE_ORDER_MARK "\xef\xbb\xbf"
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bool unichar_is_valid(char32_t c);
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char *utf8_is_valid(const char *s) _pure_;
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char *ascii_is_valid(const char *s) _pure_;
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char *ascii_is_valid_n(const char *str, size_t len);
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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, char32_t g);
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size_t utf16_encode_unichar(char16_t *out, char32_t c);
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char *utf16_to_utf8(const char16_t *s, size_t length /* bytes! */);
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char16_t *utf8_to_utf16(const char *s, size_t length);
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size_t char16_strlen(const char16_t *s);
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int utf8_encoded_valid_unichar(const char *str);
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int utf8_encoded_to_unichar(const char *str, char32_t *ret_unichar);
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static inline bool utf16_is_surrogate(char16_t c) {
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return c >= 0xd800U && c <= 0xdfffU;
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}
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static inline bool utf16_is_trailing_surrogate(char16_t c) {
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return c >= 0xdc00U && c <= 0xdfffU;
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}
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static inline char32_t utf16_surrogate_pair_to_unichar(char16_t lead, char16_t trail) {
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return ((((char32_t) lead - 0xd800U) << 10) + ((char32_t) trail - 0xdc00U) + 0x10000U);
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}
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size_t utf8_n_codepoints(const char *str);
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size_t utf8_console_width(const char *str);
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