diff options
author | Kay Sievers <kay@vrfy.org> | 2015-06-09 14:27:33 +0200 |
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committer | Kay Sievers <kay@vrfy.org> | 2015-06-11 10:52:46 +0200 |
commit | a095315b3c31f7a419baceac82c26c3c5ac0cd12 (patch) | |
tree | a5a70cf5b5430c0a6873311437b8345d7071f249 /src/basic/utf8.h | |
parent | 37c47e5e5b8e47dd886ed6e8355b1203082b4a3e (diff) |
build-sys: split internal basic/ library from shared/
basic/ can be used by everything
cannot use anything outside of basic/
libsystemd/ can use basic/
cannot use shared/
shared/ can use libsystemd/
Diffstat (limited to 'src/basic/utf8.h')
-rw-r--r-- | src/basic/utf8.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/basic/utf8.h b/src/basic/utf8.h new file mode 100644 index 0000000000..e745649f06 --- /dev/null +++ b/src/basic/utf8.h @@ -0,0 +1,57 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +#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 <http://www.gnu.org/licenses/>. +***/ + +#include <stdbool.h> + +#include "macro.h" + +#define UTF8_REPLACEMENT_CHARACTER "\xef\xbf\xbd" + +bool unichar_is_valid(uint32_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, uint32_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); + +static inline bool utf16_is_surrogate(uint16_t c) { + return (0xd800 <= c && c <= 0xdfff); +} + +static inline bool utf16_is_trailing_surrogate(uint16_t c) { + return (0xdc00 <= c && c <= 0xdfff); +} + +static inline uint32_t utf16_surrogate_pair_to_unichar(uint16_t lead, uint16_t trail) { + return ((lead - 0xd800) << 10) + (trail - 0xdc00) + 0x10000; +} |