From fccd290a8373438c26ed4e4f8130db18eb9b3dfe Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Thu, 2 Jun 2016 13:16:04 -0400 Subject: ./move.sh --- src/libbasic/utf8.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 src/libbasic/utf8.h (limited to 'src/libbasic/utf8.h') diff --git a/src/libbasic/utf8.h b/src/libbasic/utf8.h new file mode 100644 index 0000000000..12c272d66e --- /dev/null +++ b/src/libbasic/utf8.h @@ -0,0 +1,59 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include +#include +#include +#include + +#include "macro.h" +#include "missing.h" + +#define UTF8_REPLACEMENT_CHARACTER "\xef\xbf\xbd" + +bool unichar_is_valid(char32_t c); + +const char *utf8_is_valid(const char *s) _pure_; +char *ascii_is_valid(const char *s) _pure_; + +bool utf8_is_printable_newline(const char* str, size_t length, bool newline) _pure_; +#define utf8_is_printable(str, length) utf8_is_printable_newline(str, length, true) + +char *utf8_escape_invalid(const char *s); +char *utf8_escape_non_printable(const char *str); + +size_t utf8_encode_unichar(char *out_utf8, char32_t g); +char *utf16_to_utf8(const void *s, size_t length); + +int utf8_encoded_valid_unichar(const char *str); +int utf8_encoded_to_unichar(const char *str, char32_t *ret_unichar); + +static inline bool utf16_is_surrogate(char16_t c) { + return (0xd800 <= c && c <= 0xdfff); +} + +static inline bool utf16_is_trailing_surrogate(char16_t c) { + return (0xdc00 <= c && c <= 0xdfff); +} + +static inline char32_t utf16_surrogate_pair_to_unichar(char16_t lead, char16_t trail) { + return ((lead - 0xd800) << 10) + (trail - 0xdc00) + 0x10000; +} -- cgit v1.2.3-54-g00ecf