gecko-dev/ipc/glue/StringUtil.cpp

87 строки
2.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "base/string_util.h"
// Copyright (c) 2006-2008 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/sys_string_conversions.h"
#include "base/string_piece.h"
#include "base/string_util.h"
// FIXME/cjones: these really only pertain to the linux sys string
// converters.
#ifdef XP_WIN
# define ICONV_WCHAR_T_ENCODING "UTF-16"
#else
# define ICONV_WCHAR_T_ENCODING "WCHAR_T"
#endif
// FIXME/cjones: BIG assumption here that std::string is a good
// container of UTF8-encoded strings. this is probably wrong, as its
// API doesn't really make sense for UTF8.
namespace base {
// FIXME/cjones: as its name implies, this function is a hack.
template <typename FromType, typename ToType>
ToType HackyStringConvert(const FromType& in) {
// FIXME/cjones: assumes no non-ASCII characters in |in|
ToType out;
out.resize(in.length());
for (int i = 0; i < static_cast<int>(in.length()); ++i)
out[i] = static_cast<typename ToType::value_type>(in[i]);
return out;
}
} // namespace base
// Implement functions that were in the chromium ICU library, which
// we're not taking.
std::string WideToUTF8(const std::wstring& wide) {
return base::SysWideToUTF8(wide);
}
std::wstring UTF8ToWide(const StringPiece& utf8) {
return base::SysUTF8ToWide(utf8);
}
namespace base {
// FIXME/cjones: here we're entirely replacing the linux string
// converters, and implementing the one that doesn't exist for OS X
// and Windows.
#if !defined(XP_DARWIN) && !defined(XP_WIN)
std::string SysWideToUTF8(const std::wstring& wide) {
// FIXME/cjones: do this with iconv
return HackyStringConvert<std::wstring, std::string>(wide);
}
#endif
#if !defined(XP_DARWIN) && !defined(XP_WIN)
std::wstring SysUTF8ToWide(const StringPiece& utf8) {
// FIXME/cjones: do this with iconv
return HackyStringConvert<StringPiece, std::wstring>(utf8);
}
std::string SysWideToNativeMB(const std::wstring& wide) {
// TODO(evanm): we can't assume Linux is UTF-8.
return SysWideToUTF8(wide);
}
std::wstring SysNativeMBToWide(const StringPiece& native_mb) {
// TODO(evanm): we can't assume Linux is UTF-8.
return SysUTF8ToWide(native_mb);
}
#endif
} // namespace base