pineapple-src/externals/vcpkg/packages/boost-process_x64-windows/include/boost/process/locale.hpp
2022-11-05 15:35:56 +01:00

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// Copyright (c) 2016 Klemens D. Morgenstern
// Copyright (c) 2008 Beman Dawes
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_PROCESS_LOCALE_HPP_
#define BOOST_PROCESS_LOCALE_HPP_
#include <system_error>
#include <boost/process/detail/config.hpp>
#if defined(BOOST_WINDOWS_API)
#include <boost/process/detail/windows/locale.hpp>
# elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__) \
|| defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__)
#include <codecvt>
#endif
#include <locale>
namespace boost
{
namespace process
{
namespace detail
{
class codecvt_category_t : public std::error_category
{
public:
codecvt_category_t() = default;
const char* name() const noexcept override {return "codecvt";}
std::string message(int ev) const override
{
std::string str;
switch (ev)
{
case std::codecvt_base::ok:
str = "ok";
break;
case std::codecvt_base::partial:
str = "partial";
break;
case std::codecvt_base::error:
str = "error";
break;
case std::codecvt_base::noconv:
str = "noconv";
break;
default:
str = "unknown error";
}
return str;
}
};
}
///Internally used error cateory for code conversion.
inline const std::error_category& codecvt_category()
{
static const ::boost::process::detail::codecvt_category_t cat;
return cat;
}
namespace detail
{
//copied from boost.filesystem
inline std::locale default_locale()
{
# if defined(BOOST_WINDOWS_API)
std::locale global_loc = std::locale();
return std::locale(global_loc, new boost::process::detail::windows::windows_file_codecvt);
# elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__) \
|| defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__)
std::locale global_loc = std::locale();
return std::locale(global_loc, new std::codecvt_utf8<wchar_t>);
# else // Other POSIX
// Return a default locale object.
return std::locale();
# endif
}
inline std::locale& process_locale()
{
static std::locale loc(default_locale());
return loc;
}
}
///The internally used type for code conversion.
typedef std::codecvt<wchar_t, char, std::mbstate_t> codecvt_type;
///Get a reference to the currently used code converter.
inline const codecvt_type& codecvt()
{
return std::use_facet<std::codecvt<wchar_t, char, std::mbstate_t>>(
detail::process_locale());
}
///Set the locale of the library.
inline std::locale imbue(const std::locale& loc)
{
std::locale temp(detail::process_locale());
detail::process_locale() = loc;
return temp;
}
namespace detail
{
inline std::size_t convert(const char* from,
const char* from_end,
wchar_t* to, wchar_t* to_end,
const ::boost::process::codecvt_type & cvt =
::boost::process::codecvt())
{
std::mbstate_t state = std::mbstate_t(); // perhaps unneeded, but cuts bug reports
const char* from_next;
wchar_t* to_next;
auto res = cvt.in(state, from, from_end, from_next,
to, to_end, to_next);
if (res != std::codecvt_base::ok)
throw process_error(res, ::boost::process::codecvt_category(),
"boost::process codecvt to wchar_t");
return to_next - to;
}
inline std::size_t convert(const wchar_t* from,
const wchar_t* from_end,
char* to, char* to_end,
const ::boost::process::codecvt_type & cvt =
::boost::process::codecvt())
{
std::mbstate_t state = std::mbstate_t(); // perhaps unneeded, but cuts bug reports
const wchar_t* from_next;
char* to_next;
std::codecvt_base::result res;
if ((res=cvt.out(state, from, from_end, from_next,
to, to_end, to_next)) != std::codecvt_base::ok)
throw process_error(res, ::boost::process::codecvt_category(),
"boost::process codecvt to char");
return to_next - to;
}
inline std::wstring convert(const std::string & st,
const ::boost::process::codecvt_type & cvt =
::boost::process::codecvt())
{
std::wstring out(st.size() + 10, ' '); //just to be sure
auto sz = convert(st.c_str(), st.c_str() + st.size(),
&out.front(), &out.back(), cvt);
out.resize(sz);
return out;
}
inline std::string convert(const std::wstring & st,
const ::boost::process::codecvt_type & cvt =
::boost::process::codecvt())
{
std::string out(st.size() * 2, ' '); //just to be sure
auto sz = convert(st.c_str(), st.c_str() + st.size(),
&out.front(), &out.back(), cvt);
out.resize(sz);
return out;
}
inline std::vector<wchar_t> convert(const std::vector<char> & st,
const ::boost::process::codecvt_type & cvt =
::boost::process::codecvt())
{
std::vector<wchar_t> out(st.size() + 10); //just to be sure
auto sz = convert(st.data(), st.data() + st.size(),
&out.front(), &out.back(), cvt);
out.resize(sz);
return out;
}
inline std::vector<char> convert(const std::vector<wchar_t> & st,
const ::boost::process::codecvt_type & cvt =
::boost::process::codecvt())
{
std::vector<char> out(st.size() * 2); //just to be sure
auto sz = convert(st.data(), st.data() + st.size(),
&out.front(), &out.back(), cvt);
out.resize(sz);
return out;
}
inline std::wstring convert(const char *begin, const char* end,
const ::boost::process::codecvt_type & cvt =
::boost::process::codecvt())
{
auto size = end-begin;
std::wstring out(size + 10, ' '); //just to be sure
using namespace std;
auto sz = convert(begin, end,
&out.front(), &out.back(), cvt);
out.resize(sz);
return out;
}
inline std::string convert(const wchar_t * begin, const wchar_t *end,
const ::boost::process::codecvt_type & cvt =
::boost::process::codecvt())
{
auto size = end-begin;
std::string out(size * 2, ' '); //just to be sure
auto sz = convert(begin, end ,
&out.front(), &out.back(), cvt);
out.resize(sz);
return out;
}
}
}
}
#endif /* BOOST_PROCESS_LOCALE_HPP_ */