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/*
Mod Organizer archive handling
Copyright (C) 2020 MO2 Team. All rights reserved.
This library 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 3 of the License, or (at your option) any later version.
This library 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 this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef ARCHIVE_FORMAT_H
#define ARCHIVE_FORMAT_H
// This header specialize formatter() for some useful types. It should not be
// exposed outside of the library. It also contains some useful methods for
// string manipulation.
#include <format>
#include <cwctype>
#include <filesystem>
#include <stdexcept>
#include <string>
template <>
struct std::formatter<std::string, wchar_t> : std::formatter<std::wstring, wchar_t>
{
template <typename FormatContext>
auto format(std::string const& s, FormatContext& ctx) const
{
return std::formatter<std::wstring, wchar_t>::format(
std::wstring(s.begin(), s.end()), ctx);
}
};
template <>
struct std::formatter<std::exception, wchar_t> : std::formatter<std::string, wchar_t>
{
template <typename FormatContext>
auto format(std::exception const& ex, FormatContext& ctx) const
{
return std::formatter<std::string, wchar_t>::format(ex.what(), ctx);
}
};
template <>
struct std::formatter<std::error_code, wchar_t> : std::formatter<std::string, wchar_t>
{
template <typename FormatContext>
auto format(std::error_code const& ec, FormatContext& ctx) const
{
return std::formatter<std::string, wchar_t>::format(ec.message(), ctx);
}
};
template <>
struct std::formatter<std::filesystem::path, wchar_t>
: std::formatter<std::wstring, wchar_t>
{
template <typename FormatContext>
auto format(std::filesystem::path const& path, FormatContext& ctx) const
{
return std::formatter<std::wstring, wchar_t>::format(path.wstring(), ctx);
}
};
namespace ArchiveStrings
{
/**
* @brief Join the element of the given container using the given separator.
*
* @param c The container. Must be satisfy standard container requirements.
* @param sep The separator.
*
* @return a string containing the element joint, or an empty string if c
* is empty.
*/
template <class C>
std::wstring join(C const& c, std::wstring const& sep)
{
auto begin = std::begin(c), end = std::end(c);
if (begin == end) {
return {};
}
std::wstring r = *begin++;
for (; begin != end; ++begin) {
r += *begin + sep;
}
return r;
}
/**
* @brief Conver the given string to lowercase.
*
* @param s The string to convert.
*
* @return the converted string.
*/
inline std::wstring towlower(std::wstring s)
{
std::transform(std::begin(s), std::end(s), std::begin(s), [](wchar_t c) {
return static_cast<wchar_t>(::towlower(c));
});
return s;
}
} // namespace ArchiveStrings
#endif
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