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/*
* Copyright (C) 2003-2015 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 "config.h"
#include "Charset.hxx"
#include "Domain.hxx"
#include "Limits.hxx"
#include "Log.hxx"
#include "lib/icu/Converter.hxx"
#include "util/Error.hxx"
#ifdef WIN32
#include <windows.h>
#endif
#include <algorithm>
#include <assert.h>
#include <string.h>
#ifdef HAVE_FS_CHARSET
static std::string fs_charset;
static IcuConverter *fs_converter;
bool
SetFSCharset(const char *charset, Error &error)
{
assert(charset != nullptr);
assert(fs_converter == nullptr);
fs_converter = IcuConverter::Create(charset, error);
if (fs_converter == nullptr)
return false;
FormatDebug(path_domain,
"SetFSCharset: fs charset is: %s", fs_charset.c_str());
return true;
}
#endif
void
DeinitFSCharset()
{
#ifdef HAVE_ICU_CONVERTER
delete fs_converter;
fs_converter = nullptr;
#endif
}
const char *
GetFSCharset()
{
#ifdef HAVE_FS_CHARSET
return fs_charset.empty() ? "UTF-8" : fs_charset.c_str();
#else
return "UTF-8";
#endif
}
static inline PathTraitsUTF8::string &&
FixSeparators(PathTraitsUTF8::string &&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;
if (from != to)
/* convert backslash to slash on WIN32 */
std::replace(s.begin(), s.end(), from, to);
return std::move(s);
}
PathTraitsUTF8::string
PathToUTF8(PathTraitsFS::const_pointer path_fs)
{
#if !CLANG_CHECK_VERSION(3,6)
/* disabled on clang due to -Wtautological-pointer-compare */
assert(path_fs != nullptr);
#endif
#ifdef WIN32
int length = WideCharToMultiByte(CP_UTF8, 0, path_fs, -1, nullptr, 0,
nullptr, nullptr);
if (length <= 0)
return PathTraitsUTF8::string();
char *buffer = new char[length];
length = WideCharToMultiByte(CP_UTF8, 0, path_fs, -1, buffer, length,
nullptr, nullptr);
if (length <= 0) {
delete[] buffer;
return PathTraitsUTF8::string();
}
PathTraitsUTF8::string result(buffer);
delete[] buffer;
return FixSeparators(std::move(result));
#else
#ifdef HAVE_FS_CHARSET
if (fs_converter == nullptr)
#endif
return FixSeparators(path_fs);
#ifdef HAVE_FS_CHARSET
return FixSeparators(fs_converter->ToUTF8(path_fs));
#endif
#endif
}
#if defined(HAVE_FS_CHARSET) || defined(WIN32)
PathTraitsFS::string
PathFromUTF8(PathTraitsUTF8::const_pointer path_utf8)
{
#if !CLANG_CHECK_VERSION(3,6)
/* disabled on clang due to -Wtautological-pointer-compare */
assert(path_utf8 != nullptr);
#endif
#ifdef WIN32
int length = MultiByteToWideChar(CP_UTF8, 0, path_utf8, -1,
nullptr, 0);
if (length <= 0)
return PathTraitsFS::string();
wchar_t *buffer = new wchar_t[length];
length = MultiByteToWideChar(CP_UTF8, 0, path_utf8, -1,
buffer, length);
if (length <= 0) {
delete[] buffer;
return PathTraitsFS::string();
}
PathTraitsFS::string result(buffer);
delete[] buffer;
return std::move(result);
#else
if (fs_converter == nullptr)
return path_utf8;
return fs_converter->FromUTF8(path_utf8);
#endif
}
#endif
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