security/sandbox/chromium/base/strings/utf_string_conversions.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
michael@0 2 // Use of this source code is governed by a BSD-style license that can be
michael@0 3 // found in the LICENSE file.
michael@0 4
michael@0 5 #ifndef BASE_STRINGS_UTF_STRING_CONVERSIONS_H_
michael@0 6 #define BASE_STRINGS_UTF_STRING_CONVERSIONS_H_
michael@0 7
michael@0 8 #include <string>
michael@0 9
michael@0 10 #include "base/base_export.h"
michael@0 11 #include "base/strings/string16.h"
michael@0 12 #include "base/strings/string_piece.h"
michael@0 13
michael@0 14 namespace base {
michael@0 15
michael@0 16 // These convert between UTF-8, -16, and -32 strings. They are potentially slow,
michael@0 17 // so avoid unnecessary conversions. The low-level versions return a boolean
michael@0 18 // indicating whether the conversion was 100% valid. In this case, it will still
michael@0 19 // do the best it can and put the result in the output buffer. The versions that
michael@0 20 // return strings ignore this error and just return the best conversion
michael@0 21 // possible.
michael@0 22 BASE_EXPORT bool WideToUTF8(const wchar_t* src, size_t src_len,
michael@0 23 std::string* output);
michael@0 24 BASE_EXPORT std::string WideToUTF8(const std::wstring& wide);
michael@0 25 BASE_EXPORT bool UTF8ToWide(const char* src, size_t src_len,
michael@0 26 std::wstring* output);
michael@0 27 BASE_EXPORT std::wstring UTF8ToWide(const StringPiece& utf8);
michael@0 28
michael@0 29 BASE_EXPORT bool WideToUTF16(const wchar_t* src, size_t src_len,
michael@0 30 string16* output);
michael@0 31 BASE_EXPORT string16 WideToUTF16(const std::wstring& wide);
michael@0 32 BASE_EXPORT bool UTF16ToWide(const char16* src, size_t src_len,
michael@0 33 std::wstring* output);
michael@0 34 BASE_EXPORT std::wstring UTF16ToWide(const string16& utf16);
michael@0 35
michael@0 36 BASE_EXPORT bool UTF8ToUTF16(const char* src, size_t src_len, string16* output);
michael@0 37 BASE_EXPORT string16 UTF8ToUTF16(const StringPiece& utf8);
michael@0 38 BASE_EXPORT bool UTF16ToUTF8(const char16* src, size_t src_len,
michael@0 39 std::string* output);
michael@0 40 BASE_EXPORT std::string UTF16ToUTF8(const string16& utf16);
michael@0 41
michael@0 42 // We are trying to get rid of wstring as much as possible, but it's too big
michael@0 43 // a mess to do it all at once. These conversions should be used when we
michael@0 44 // really should just be passing a string16 around, but we haven't finished
michael@0 45 // porting whatever module uses wstring and the conversion is being used as a
michael@0 46 // stopcock. This makes it easy to grep for the ones that should be removed.
michael@0 47 #if defined(OS_WIN)
michael@0 48 # define WideToUTF16Hack
michael@0 49 # define UTF16ToWideHack
michael@0 50 #else
michael@0 51 # define WideToUTF16Hack WideToUTF16
michael@0 52 # define UTF16ToWideHack UTF16ToWide
michael@0 53 #endif
michael@0 54
michael@0 55 // These convert an ASCII string, typically a hardcoded constant, to a
michael@0 56 // UTF16/Wide string.
michael@0 57 BASE_EXPORT std::wstring ASCIIToWide(const StringPiece& ascii);
michael@0 58 BASE_EXPORT string16 ASCIIToUTF16(const StringPiece& ascii);
michael@0 59
michael@0 60 } // namespace base
michael@0 61
michael@0 62 // TODO(brettw) remove these when callers are fixed up.
michael@0 63 using base::WideToUTF8;
michael@0 64 using base::UTF8ToWide;
michael@0 65 using base::WideToUTF16;
michael@0 66 using base::UTF16ToWide;
michael@0 67 using base::UTF8ToUTF16;
michael@0 68 using base::UTF16ToUTF8;
michael@0 69 using base::ASCIIToWide;
michael@0 70 using base::ASCIIToUTF16;
michael@0 71
michael@0 72 #endif // BASE_STRINGS_UTF_STRING_CONVERSIONS_H_

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