The Tor Browser: security/sandbox/chromium/base/strings/utf_string

     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.

     5 #ifndef BASE_STRINGS_UTF_STRING_CONVERSIONS_H_

     6 #define BASE_STRINGS_UTF_STRING_CONVERSIONS_H_

     8 #include <string>

    10 #include "base/base_export.h"

    11 #include "base/strings/string16.h"

    12 #include "base/strings/string_piece.h"

    14 namespace base {

    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);

    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);

    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);

    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

    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);

    60 }  // namespace base

    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;

    72 #endif  // BASE_STRINGS_UTF_STRING_CONVERSIONS_H_

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