1 // Copyright (c) 2011 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 #ifndef BASE_STRINGS_UTF_STRING_CONVERSIONS_H_ 6 #define BASE_STRINGS_UTF_STRING_CONVERSIONS_H_ 7 8 #include <string> 9 10 #include "base/base_export.h" 11 #include "base/strings/string16.h" 12 #include "base/strings/string_piece.h" 13 14 namespace base { 15 16 // These convert between UTF-8, -16, and -32 strings. They are potentially slow, 17 // so avoid unnecessary conversions. The low-level versions return a boolean 18 // indicating whether the conversion was 100% valid. In this case, it will still 19 // do the best it can and put the result in the output buffer. The versions that 20 // return strings ignore this error and just return the best conversion 21 // possible. 22 BASE_EXPORT bool WideToUTF8(const wchar_t* src, size_t src_len, 23 std::string* output); 24 BASE_EXPORT std::string WideToUTF8(const std::wstring& wide); 25 BASE_EXPORT bool UTF8ToWide(const char* src, size_t src_len, 26 std::wstring* output); 27 BASE_EXPORT std::wstring UTF8ToWide(const StringPiece& utf8); 28 29 BASE_EXPORT bool WideToUTF16(const wchar_t* src, size_t src_len, 30 string16* output); 31 BASE_EXPORT string16 WideToUTF16(const std::wstring& wide); 32 BASE_EXPORT bool UTF16ToWide(const char16* src, size_t src_len, 33 std::wstring* output); 34 BASE_EXPORT std::wstring UTF16ToWide(const string16& utf16); 35 36 BASE_EXPORT bool UTF8ToUTF16(const char* src, size_t src_len, string16* output); 37 BASE_EXPORT string16 UTF8ToUTF16(const StringPiece& utf8); 38 BASE_EXPORT bool UTF16ToUTF8(const char16* src, size_t src_len, 39 std::string* output); 40 BASE_EXPORT std::string UTF16ToUTF8(const string16& utf16); 41 42 // We are trying to get rid of wstring as much as possible, but it's too big 43 // a mess to do it all at once. These conversions should be used when we 44 // really should just be passing a string16 around, but we haven't finished 45 // porting whatever module uses wstring and the conversion is being used as a 46 // stopcock. This makes it easy to grep for the ones that should be removed. 47 #if defined(OS_WIN) 48 # define WideToUTF16Hack 49 # define UTF16ToWideHack 50 #else 51 # define WideToUTF16Hack WideToUTF16 52 # define UTF16ToWideHack UTF16ToWide 53 #endif 54 55 // These convert an ASCII string, typically a hardcoded constant, to a 56 // UTF16/Wide string. 57 BASE_EXPORT std::wstring ASCIIToWide(const StringPiece& ascii); 58 BASE_EXPORT string16 ASCIIToUTF16(const StringPiece& ascii); 59 60 } // namespace base 61 62 // TODO(brettw) remove these when callers are fixed up. 63 using base::WideToUTF8; 64 using base::UTF8ToWide; 65 using base::WideToUTF16; 66 using base::UTF16ToWide; 67 using base::UTF8ToUTF16; 68 using base::UTF16ToUTF8; 69 using base::ASCIIToWide; 70 using base::ASCIIToUTF16; 71 72 #endif // BASE_STRINGS_UTF_STRING_CONVERSIONS_H_ 73
