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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WebCString_h
#define WebCString_h
#include "WebCommon.h"
#if WEBKIT_IMPLEMENTATION
#include <wtf/Forward.h>
#else
#include <string>
#endif
namespace WTF {
class CString;
}
namespace WebKit {
class WebCStringPrivate;
class WebString;
// A single-byte string container with unspecified encoding. It is
// inexpensive to copy a WebCString object.
//
// WARNING: It is not safe to pass a WebCString across threads!!!
//
class WebCString {
public:
~WebCString() { reset(); }
WebCString() : m_private(0) { }
WebCString(const char* data, size_t len) : m_private(0)
{
assign(data, len);
}
WebCString(const WebCString& s) : m_private(0) { assign(s); }
WebCString& operator=(const WebCString& s)
{
assign(s);
return *this;
}
// Returns 0 if both strings are equals, a value greater than zero if the
// first character that does not match has a greater value in this string
// than in |other|, or a value less than zero to indicate the opposite.
WEBKIT_API int compare(const WebCString& other) const;
WEBKIT_API void reset();
WEBKIT_API void assign(const WebCString&);
WEBKIT_API void assign(const char* data, size_t len);
WEBKIT_API size_t length() const;
WEBKIT_API const char* data() const;
bool isEmpty() const { return !length(); }
bool isNull() const { return !m_private; }
WEBKIT_API WebString utf16() const;
WEBKIT_API static WebCString fromUTF16(const WebUChar* data, size_t length);
WEBKIT_API static WebCString fromUTF16(const WebUChar* data);
#if WEBKIT_IMPLEMENTATION
WebCString(const WTF::CString&);
WebCString& operator=(const WTF::CString&);
operator WTF::CString() const;
#else
WebCString(const std::string& s) : m_private(0)
{
assign(s.data(), s.length());
}
WebCString& operator=(const std::string& s)
{
assign(s.data(), s.length());
return *this;
}
operator std::string() const
{
size_t len = length();
return len ? std::string(data(), len) : std::string();
}
template <class UTF16String>
static WebCString fromUTF16(const UTF16String& s)
{
return fromUTF16(s.data(), s.length());
}
#endif
private:
void assign(WebCStringPrivate*);
WebCStringPrivate* m_private;
};
inline bool operator<(const WebCString& a, const WebCString& b)
{
return a.compare(b) < 0;
}
} // namespace WebKit
#endif
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