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/*
* Copyright 2003-2021 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program 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
* (at your option) any later version.
*
* This program 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "Charset.hxx"
#include "Features.hxx"
#include "Domain.hxx"
#include "Log.hxx"
#include "lib/icu/Converter.hxx"
#include "util/AllocatedString.hxx"
#include "config.h"
#ifdef _WIN32
#include "lib/icu/Win32.hxx"
#include <windows.h>
#endif
#include <algorithm>
#include <cassert>
#ifdef HAVE_FS_CHARSET
static std::string fs_charset;
static std::unique_ptr<IcuConverter> fs_converter;
void
SetFSCharset(const char *charset)
{
assert(charset != nullptr);
assert(fs_converter == nullptr);
fs_converter = IcuConverter::Create(charset);
assert(fs_converter != nullptr);
FormatDebug(path_domain,
"SetFSCharset: fs charset is: %s", fs_charset.c_str());
}
#endif
void
DeinitFSCharset() noexcept
{
#ifdef HAVE_ICU_CONVERTER
fs_converter.reset();
#endif
}
const char *
GetFSCharset() noexcept
{
#ifdef HAVE_FS_CHARSET
return fs_charset.empty() ? "UTF-8" : fs_charset.c_str();
#elif defined(_WIN32)
return "ACP";
#else
return "UTF-8";
#endif
}
static inline PathTraitsUTF8::string
FixSeparators(const PathTraitsUTF8::string_view _s)
{
// For whatever reason GCC can't convert constexpr to value reference.
// This leads to link errors when passing separators directly.
auto to = PathTraitsUTF8::SEPARATOR;
decltype(to) from = PathTraitsFS::SEPARATOR;
PathTraitsUTF8::string s(_s);
if (from != to)
/* convert backslash to slash on WIN32 */
std::replace(s.begin(), s.end(), from, to);
return s;
}
PathTraitsUTF8::string
PathToUTF8(PathTraitsFS::string_view path_fs)
{
#ifdef _WIN32
const auto buffer = WideCharToMultiByte(CP_UTF8, path_fs);
return FixSeparators(buffer);
#else
#ifdef HAVE_FS_CHARSET
if (fs_converter == nullptr)
#endif
return FixSeparators(path_fs);
#ifdef HAVE_FS_CHARSET
const auto buffer = fs_converter->ToUTF8(path_fs);
return FixSeparators(buffer);
#endif
#endif
}
#if defined(HAVE_FS_CHARSET) || defined(_WIN32)
PathTraitsFS::string
PathFromUTF8(PathTraitsUTF8::string_view path_utf8)
{
#ifdef _WIN32
const auto buffer = MultiByteToWideChar(CP_UTF8, path_utf8);
return PathTraitsFS::string(buffer);
#else
if (fs_converter == nullptr)
return PathTraitsFS::string(path_utf8);
const auto buffer = fs_converter->FromUTF8(path_utf8);
return PathTraitsFS::string(buffer);
#endif
}
#endif
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