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100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
//# This file is a part of toml++ and is subject to the the terms of the MIT license.
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//# Copyright (c) Mark Gillard <mark.gillard@outlook.com.au>
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//# See https://github.com/marzer/tomlplusplus/blob/master/LICENSE for the full license text.
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// SPDX-License-Identifier: MIT
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#pragma once
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//# {{
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#include "preprocessor.h"
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#if !TOML_IMPLEMENTATION
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#error This is an implementation-only header.
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#endif
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//# }}
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#if TOML_ENABLE_WINDOWS_COMPAT
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#include "std_string.h"
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#ifndef _WINDOWS_
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#if TOML_INCLUDE_WINDOWS_H
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#include <Windows.h>
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#else
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extern "C" __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int CodePage,
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unsigned long dwFlags,
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const wchar_t* lpWideCharStr,
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int cchWideChar,
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char* lpMultiByteStr,
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int cbMultiByte,
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const char* lpDefaultChar,
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int* lpUsedDefaultChar);
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extern "C" __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int CodePage,
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unsigned long dwFlags,
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const char* lpMultiByteStr,
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int cbMultiByte,
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wchar_t* lpWideCharStr,
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int cchWideChar);
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#endif // TOML_INCLUDE_WINDOWS_H
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#endif // _WINDOWS_
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#include "header_start.h"
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TOML_IMPL_NAMESPACE_START
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{
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TOML_EXTERNAL_LINKAGE
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std::string narrow(std::wstring_view str)
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{
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if (str.empty())
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return {};
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std::string s;
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const auto len =
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::WideCharToMultiByte(65001, 0, str.data(), static_cast<int>(str.length()), nullptr, 0, nullptr, nullptr);
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if (len)
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{
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s.resize(static_cast<size_t>(len));
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::WideCharToMultiByte(65001,
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0,
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str.data(),
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static_cast<int>(str.length()),
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s.data(),
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len,
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nullptr,
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nullptr);
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}
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return s;
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}
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TOML_EXTERNAL_LINKAGE
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std::wstring widen(std::string_view str)
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{
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if (str.empty())
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return {};
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std::wstring s;
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const auto len = ::MultiByteToWideChar(65001, 0, str.data(), static_cast<int>(str.length()), nullptr, 0);
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if (len)
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{
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s.resize(static_cast<size_t>(len));
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::MultiByteToWideChar(65001, 0, str.data(), static_cast<int>(str.length()), s.data(), len);
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}
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return s;
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}
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#if TOML_HAS_CHAR8
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TOML_EXTERNAL_LINKAGE
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std::wstring widen(std::u8string_view str)
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{
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if (str.empty())
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return {};
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return widen(std::string_view{ reinterpret_cast<const char*>(str.data()), str.length() });
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}
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#endif // TOML_HAS_CHAR8
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}
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TOML_IMPL_NAMESPACE_END;
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#include "header_end.h"
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#endif // TOML_ENABLE_WINDOWS_COMPAT
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