diff options
Diffstat (limited to 'security/sandbox/chromium/base/strings/utf_string_conversions.cc')
-rw-r--r-- | security/sandbox/chromium/base/strings/utf_string_conversions.cc | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/security/sandbox/chromium/base/strings/utf_string_conversions.cc b/security/sandbox/chromium/base/strings/utf_string_conversions.cc deleted file mode 100644 index 6b17eacd6..000000000 --- a/security/sandbox/chromium/base/strings/utf_string_conversions.cc +++ /dev/null @@ -1,231 +0,0 @@ -// Copyright (c) 2010 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "base/strings/utf_string_conversions.h" - -#include <stdint.h> - -#include "base/strings/string_piece.h" -#include "base/strings/string_util.h" -#include "base/strings/utf_string_conversion_utils.h" -#include "build/build_config.h" - -namespace base { - -namespace { - -// Generalized Unicode converter ----------------------------------------------- - -// Converts the given source Unicode character type to the given destination -// Unicode character type as a STL string. The given input buffer and size -// determine the source, and the given output STL string will be replaced by -// the result. -template<typename SRC_CHAR, typename DEST_STRING> -bool ConvertUnicode(const SRC_CHAR* src, - size_t src_len, - DEST_STRING* output) { - // ICU requires 32-bit numbers. - bool success = true; - int32_t src_len32 = static_cast<int32_t>(src_len); - for (int32_t i = 0; i < src_len32; i++) { - uint32_t code_point; - if (ReadUnicodeCharacter(src, src_len32, &i, &code_point)) { - WriteUnicodeCharacter(code_point, output); - } else { - WriteUnicodeCharacter(0xFFFD, output); - success = false; - } - } - - return success; -} - -} // namespace - -// UTF-8 <-> Wide -------------------------------------------------------------- - -bool WideToUTF8(const wchar_t* src, size_t src_len, std::string* output) { - if (IsStringASCII(std::wstring(src, src_len))) { - output->assign(src, src + src_len); - return true; - } else { - PrepareForUTF8Output(src, src_len, output); - return ConvertUnicode(src, src_len, output); - } -} - -std::string WideToUTF8(const std::wstring& wide) { - if (IsStringASCII(wide)) { - return std::string(wide.data(), wide.data() + wide.length()); - } - - std::string ret; - PrepareForUTF8Output(wide.data(), wide.length(), &ret); - ConvertUnicode(wide.data(), wide.length(), &ret); - return ret; -} - -bool UTF8ToWide(const char* src, size_t src_len, std::wstring* output) { - if (IsStringASCII(StringPiece(src, src_len))) { - output->assign(src, src + src_len); - return true; - } else { - PrepareForUTF16Or32Output(src, src_len, output); - return ConvertUnicode(src, src_len, output); - } -} - -std::wstring UTF8ToWide(StringPiece utf8) { - if (IsStringASCII(utf8)) { - return std::wstring(utf8.begin(), utf8.end()); - } - - std::wstring ret; - PrepareForUTF16Or32Output(utf8.data(), utf8.length(), &ret); - ConvertUnicode(utf8.data(), utf8.length(), &ret); - return ret; -} - -// UTF-16 <-> Wide ------------------------------------------------------------- - -#if defined(WCHAR_T_IS_UTF16) - -// When wide == UTF-16, then conversions are a NOP. -bool WideToUTF16(const wchar_t* src, size_t src_len, string16* output) { - output->assign(src, src_len); - return true; -} - -string16 WideToUTF16(const std::wstring& wide) { - return wide; -} - -bool UTF16ToWide(const char16* src, size_t src_len, std::wstring* output) { - output->assign(src, src_len); - return true; -} - -std::wstring UTF16ToWide(const string16& utf16) { - return utf16; -} - -#elif defined(WCHAR_T_IS_UTF32) - -bool WideToUTF16(const wchar_t* src, size_t src_len, string16* output) { - output->clear(); - // Assume that normally we won't have any non-BMP characters so the counts - // will be the same. - output->reserve(src_len); - return ConvertUnicode(src, src_len, output); -} - -string16 WideToUTF16(const std::wstring& wide) { - string16 ret; - WideToUTF16(wide.data(), wide.length(), &ret); - return ret; -} - -bool UTF16ToWide(const char16* src, size_t src_len, std::wstring* output) { - output->clear(); - // Assume that normally we won't have any non-BMP characters so the counts - // will be the same. - output->reserve(src_len); - return ConvertUnicode(src, src_len, output); -} - -std::wstring UTF16ToWide(const string16& utf16) { - std::wstring ret; - UTF16ToWide(utf16.data(), utf16.length(), &ret); - return ret; -} - -#endif // defined(WCHAR_T_IS_UTF32) - -// UTF16 <-> UTF8 -------------------------------------------------------------- - -#if defined(WCHAR_T_IS_UTF32) - -bool UTF8ToUTF16(const char* src, size_t src_len, string16* output) { - if (IsStringASCII(StringPiece(src, src_len))) { - output->assign(src, src + src_len); - return true; - } else { - PrepareForUTF16Or32Output(src, src_len, output); - return ConvertUnicode(src, src_len, output); - } -} - -string16 UTF8ToUTF16(StringPiece utf8) { - if (IsStringASCII(utf8)) { - return string16(utf8.begin(), utf8.end()); - } - - string16 ret; - PrepareForUTF16Or32Output(utf8.data(), utf8.length(), &ret); - // Ignore the success flag of this call, it will do the best it can for - // invalid input, which is what we want here. - ConvertUnicode(utf8.data(), utf8.length(), &ret); - return ret; -} - -bool UTF16ToUTF8(const char16* src, size_t src_len, std::string* output) { - if (IsStringASCII(StringPiece16(src, src_len))) { - output->assign(src, src + src_len); - return true; - } else { - PrepareForUTF8Output(src, src_len, output); - return ConvertUnicode(src, src_len, output); - } -} - -std::string UTF16ToUTF8(StringPiece16 utf16) { - if (IsStringASCII(utf16)) { - return std::string(utf16.begin(), utf16.end()); - } - - std::string ret; - // Ignore the success flag of this call, it will do the best it can for - // invalid input, which is what we want here. - UTF16ToUTF8(utf16.data(), utf16.length(), &ret); - return ret; -} - -#elif defined(WCHAR_T_IS_UTF16) -// Easy case since we can use the "wide" versions we already wrote above. - -bool UTF8ToUTF16(const char* src, size_t src_len, string16* output) { - return UTF8ToWide(src, src_len, output); -} - -string16 UTF8ToUTF16(StringPiece utf8) { - return UTF8ToWide(utf8); -} - -bool UTF16ToUTF8(const char16* src, size_t src_len, std::string* output) { - return WideToUTF8(src, src_len, output); -} - -std::string UTF16ToUTF8(StringPiece16 utf16) { - if (IsStringASCII(utf16)) - return std::string(utf16.data(), utf16.data() + utf16.length()); - - std::string ret; - PrepareForUTF8Output(utf16.data(), utf16.length(), &ret); - ConvertUnicode(utf16.data(), utf16.length(), &ret); - return ret; -} - -#endif - -string16 ASCIIToUTF16(StringPiece ascii) { - DCHECK(IsStringASCII(ascii)) << ascii; - return string16(ascii.begin(), ascii.end()); -} - -std::string UTF16ToASCII(StringPiece16 utf16) { - DCHECK(IsStringASCII(utf16)) << UTF16ToUTF8(utf16); - return std::string(utf16.begin(), utf16.end()); -} - -} // namespace base |