michael@0: // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #include "base/sys_string_conversions.h"
michael@0: 
michael@0: #include <windows.h>
michael@0: 
michael@0: #include "base/string_piece.h"
michael@0: 
michael@0: namespace base {
michael@0: 
michael@0: // Do not assert in this function since it is used by the asssertion code!
michael@0: std::string SysWideToUTF8(const std::wstring& wide) {
michael@0:   return SysWideToMultiByte(wide, CP_UTF8);
michael@0: }
michael@0: 
michael@0: // Do not assert in this function since it is used by the asssertion code!
michael@0: std::wstring SysUTF8ToWide(const StringPiece& utf8) {
michael@0:   return SysMultiByteToWide(utf8, CP_UTF8);
michael@0: }
michael@0: 
michael@0: std::string SysWideToNativeMB(const std::wstring& wide) {
michael@0:   return SysWideToMultiByte(wide, CP_ACP);
michael@0: }
michael@0: 
michael@0: std::wstring SysNativeMBToWide(const StringPiece& native_mb) {
michael@0:   return SysMultiByteToWide(native_mb, CP_ACP);
michael@0: }
michael@0: 
michael@0: // Do not assert in this function since it is used by the asssertion code!
michael@0: std::wstring SysMultiByteToWide(const StringPiece& mb, uint32_t code_page) {
michael@0:   if (mb.empty())
michael@0:     return std::wstring();
michael@0: 
michael@0:   int mb_length = static_cast<int>(mb.length());
michael@0:   // Compute the length of the buffer.
michael@0:   int charcount = MultiByteToWideChar(code_page, 0,
michael@0:                                       mb.data(), mb_length, NULL, 0);
michael@0:   if (charcount == 0)
michael@0:     return std::wstring();
michael@0: 
michael@0:   std::wstring wide;
michael@0:   wide.resize(charcount);
michael@0:   MultiByteToWideChar(code_page, 0, mb.data(), mb_length, &wide[0], charcount);
michael@0: 
michael@0:   return wide;
michael@0: }
michael@0: 
michael@0: // Do not assert in this function since it is used by the asssertion code!
michael@0: std::string SysWideToMultiByte(const std::wstring& wide, uint32_t code_page) {
michael@0:   int wide_length = static_cast<int>(wide.length());
michael@0:   if (wide_length == 0)
michael@0:     return std::string();
michael@0: 
michael@0:   // Compute the length of the buffer we'll need.
michael@0:   int charcount = WideCharToMultiByte(code_page, 0, wide.data(), wide_length,
michael@0:                                       NULL, 0, NULL, NULL);
michael@0:   if (charcount == 0)
michael@0:     return std::string();
michael@0: 
michael@0:   std::string mb;
michael@0:   mb.resize(charcount);
michael@0:   WideCharToMultiByte(code_page, 0, wide.data(), wide_length,
michael@0:                       &mb[0], charcount, NULL, NULL);
michael@0: 
michael@0:   return mb;
michael@0: }
michael@0: 
michael@0: }  // namespace base