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/*
* Copyright (C) 2019 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#pragma once
#include <wtf/Forward.h>
#include <wtf/RefCountedAndCanMakeWeakPtr.h>
#include <wtf/Variant.h>
namespace WebCore {
struct UserAgentStringData;
/*
* This class takes in a user agent string and returns a UserAgentStringData class
*/
class UserAgentStringParser : public RefCountedAndCanMakeWeakPtr<UserAgentStringParser> {
public:
static Ref<UserAgentStringParser> create(const String& userAgentString);
std::optional<Ref<UserAgentStringData>> parse();
private:
UserAgentStringParser(const String& userAgentString);
void consumeProduct();
void consumeComment();
void consumeRWS();
void consumeToken();
void consumeQuotedPair();
void populateUserAgentData();
inline char16_t peek();
inline void increment();
inline bool atEnd();
inline String getSubstring();
bool malformed { false };
const String& m_userAgentString;
size_t pos { 0 };
size_t start { 0 };
Ref<UserAgentStringData> data;
struct Product {
String name;
String version;
};
struct Comment {
Vector<String> parts; // split on ;
};
using Segment = WTF::Variant<Product, Comment>;
Vector<Segment> segments;
};
}
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