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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 "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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// 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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BASE_EXPORT bool WideToUTF8(const wchar_t* src, size_t src_len,
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BASE_EXPORT std::string WideToUTF8(const std::wstring& wide);
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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(const StringPiece& utf8);
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BASE_EXPORT bool WideToUTF16(const wchar_t* src, size_t src_len,
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BASE_EXPORT string16 WideToUTF16(const std::wstring& wide);
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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(const string16& utf16);
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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(const StringPiece& utf8);
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BASE_EXPORT bool UTF16ToUTF8(const char16* src, size_t src_len,
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BASE_EXPORT std::string UTF16ToUTF8(const string16& utf16);
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// These convert an ASCII string, typically a hardcoded constant, to a
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BASE_EXPORT std::wstring ASCIIToWide(const StringPiece& ascii);
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BASE_EXPORT string16 ASCIIToUTF16(const StringPiece& ascii);
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// We are trying to get rid of wstring as much as possible, but it's too big a
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// mess to do it all at once. These synonyms should be used when we really
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// should just be passing a string16 around, but we haven't finished porting
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// whatever module uses wstring and the conversion is being used as a stopgap.
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// This makes it easy to grep for the ones that should be removed.
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#define WideToUTF16Hack WideToUTF16
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#define UTF16ToWideHack UTF16ToWide
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#endif // BASE_STRINGS_UTF_STRING_CONVERSIONS_H_