55 lines
2.3 KiB
C
55 lines
2.3 KiB
C
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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_STRINGS_UTF_STRING_CONVERSIONS_H_
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#define BASE_STRINGS_UTF_STRING_CONVERSIONS_H_
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#include <stddef.h>
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#include <string>
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#include "base/base_export.h"
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#include "base/strings/string16.h"
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#include "base/strings/string_piece.h"
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namespace base {
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// These convert between UTF-8, -16, and -32 strings. They are potentially slow,
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// so avoid unnecessary conversions. The low-level versions return a boolean
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// indicating whether the conversion was 100% valid. In this case, it will still
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// do the best it can and put the result in the output buffer. The versions that
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// return strings ignore this error and just return the best conversion
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// possible.
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BASE_EXPORT bool WideToUTF8(const wchar_t* src, size_t src_len,
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std::string* output);
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BASE_EXPORT std::string WideToUTF8(WStringPiece wide) WARN_UNUSED_RESULT;
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BASE_EXPORT bool UTF8ToWide(const char* src, size_t src_len,
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std::wstring* output);
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BASE_EXPORT std::wstring UTF8ToWide(StringPiece utf8) WARN_UNUSED_RESULT;
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BASE_EXPORT bool WideToUTF16(const wchar_t* src, size_t src_len,
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string16* output);
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BASE_EXPORT string16 WideToUTF16(WStringPiece wide) WARN_UNUSED_RESULT;
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BASE_EXPORT bool UTF16ToWide(const char16* src, size_t src_len,
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std::wstring* output);
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BASE_EXPORT std::wstring UTF16ToWide(StringPiece16 utf16) WARN_UNUSED_RESULT;
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BASE_EXPORT bool UTF8ToUTF16(const char* src, size_t src_len, string16* output);
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BASE_EXPORT string16 UTF8ToUTF16(StringPiece utf8) WARN_UNUSED_RESULT;
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BASE_EXPORT bool UTF16ToUTF8(const char16* src, size_t src_len,
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std::string* output);
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BASE_EXPORT std::string UTF16ToUTF8(StringPiece16 utf16) WARN_UNUSED_RESULT;
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// This converts an ASCII string, typically a hardcoded constant, to a UTF16
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// string.
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BASE_EXPORT string16 ASCIIToUTF16(StringPiece ascii) WARN_UNUSED_RESULT;
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// Converts to 7-bit ASCII by truncating. The result must be known to be ASCII
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// beforehand.
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BASE_EXPORT std::string UTF16ToASCII(StringPiece16 utf16) WARN_UNUSED_RESULT;
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} // namespace base
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#endif // BASE_STRINGS_UTF_STRING_CONVERSIONS_H_
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