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/* Utf8.h
Copyright (c) 2017, 2018 by Flavio J. Saraiva
Endless Sky 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 3 of the License, or (at your option) any later version.
Endless Sky 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.
You should have received a copy of the GNU General Public License along with
this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <cstddef>
#include <string>
namespace Utf8 {
#if defined(_WIN32)
std::wstring ToUTF16(const std::string &str, bool isPath = true);
std::string ToUTF8(const wchar_t *str);
#endif
// Check if this character is the byte order mark (BOM) sequence.
bool IsBOM(char32_t c);
// Skip to the next unicode code point after pos in utf8.
// Return string::npos when there are no more code points.
std::size_t NextCodePoint(const std::string &str, std::size_t pos);
// Returns the start of the unicode code point at pos in utf8.
std::size_t CodePointStart(const std::string &str, std::size_t pos);
// Decodes a unicode code point in utf8.
// Invalid codepoints are converted to 0xFFFFFFFF.
// pos skips to the next unicode code point after pos in utf8,
// or is set string::npos when there are no more code points.
char32_t DecodeCodePoint(const std::string &str, std::size_t &pos);
}
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