X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futf8.h;h=77f663438e9c3465c4a1695b5879f41ba8fa3823;hb=679bda6a739fbd0b5c9eca04f20fdd48bf8c006d;hp=9a72bec084ed8d72ee60b13d411e20ef449aba55;hpb=d7832d2c6e0ef5f2839a2296c1cc2fc85c7d9632;p=elogind.git diff --git a/src/shared/utf8.h b/src/shared/utf8.h index 9a72bec08..77f663438 100644 --- a/src/shared/utf8.h +++ b/src/shared/utf8.h @@ -1,7 +1,6 @@ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ -#ifndef fooutf8hfoo -#define fooutf8hfoo +#pragma once /*** This file is part of systemd. @@ -9,25 +8,48 @@ Copyright 2012 Lennart Poettering systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + 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 - General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see . ***/ +#include + #include "macro.h" -char *utf8_is_valid(const char *s) _pure_; +#define UTF8_REPLACEMENT_CHARACTER "\xef\xbf\xbd" + +const char *utf8_is_valid(const char *s) _pure_; char *ascii_is_valid(const char *s) _pure_; -char *utf8_filter(const char *s); -char *ascii_filter(const char *s); +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); +} -#endif +static inline uint32_t utf16_surrogate_pair_to_unichar(uint16_t lead, uint16_t trail) { + return ((lead - 0xd800) << 10) + (trail - 0xdc00) + 0x10000; +}