1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/strings/sys_string_conversions.h"
6
7 #include <windows.h>
8
9 #include "base/strings/string_piece.h"
10
11 namespace base {
12
13 // Do not assert in this function since it is used by the asssertion code!
SysWideToUTF8(const std::wstring & wide)14 std::string SysWideToUTF8(const std::wstring& wide) {
15 return SysWideToMultiByte(wide, CP_UTF8);
16 }
17
18 // Do not assert in this function since it is used by the asssertion code!
SysUTF8ToWide(const StringPiece & utf8)19 std::wstring SysUTF8ToWide(const StringPiece& utf8) {
20 return SysMultiByteToWide(utf8, CP_UTF8);
21 }
22
SysWideToNativeMB(const std::wstring & wide)23 std::string SysWideToNativeMB(const std::wstring& wide) {
24 return SysWideToMultiByte(wide, CP_ACP);
25 }
26
SysNativeMBToWide(const StringPiece & native_mb)27 std::wstring SysNativeMBToWide(const StringPiece& native_mb) {
28 return SysMultiByteToWide(native_mb, CP_ACP);
29 }
30
31 // Do not assert in this function since it is used by the asssertion code!
SysMultiByteToWide(const StringPiece & mb,uint32 code_page)32 std::wstring SysMultiByteToWide(const StringPiece& mb, uint32 code_page) {
33 if (mb.empty())
34 return std::wstring();
35
36 int mb_length = static_cast<int>(mb.length());
37 // Compute the length of the buffer.
38 int charcount = MultiByteToWideChar(code_page, 0,
39 mb.data(), mb_length, NULL, 0);
40 if (charcount == 0)
41 return std::wstring();
42
43 std::wstring wide;
44 wide.resize(charcount);
45 MultiByteToWideChar(code_page, 0, mb.data(), mb_length, &wide[0], charcount);
46
47 return wide;
48 }
49
50 // Do not assert in this function since it is used by the asssertion code!
SysWideToMultiByte(const std::wstring & wide,uint32 code_page)51 std::string SysWideToMultiByte(const std::wstring& wide, uint32 code_page) {
52 int wide_length = static_cast<int>(wide.length());
53 if (wide_length == 0)
54 return std::string();
55
56 // Compute the length of the buffer we'll need.
57 int charcount = WideCharToMultiByte(code_page, 0, wide.data(), wide_length,
58 NULL, 0, NULL, NULL);
59 if (charcount == 0)
60 return std::string();
61
62 std::string mb;
63 mb.resize(charcount);
64 WideCharToMultiByte(code_page, 0, wide.data(), wide_length,
65 &mb[0], charcount, NULL, NULL);
66
67 return mb;
68 }
69
70 } // namespace base
71