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/*
* Copyright 2017 The Chromium Authors. All rights reserved.
* Copyright (C) 2018 Akamai Technologies 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 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.
*/
#pragma once
#include <wtf/text/WTFString.h>
namespace WebCore {
// Parses header fields into tokens, quoted strings and separators.
// Commonly used by ParsedContent* classes.
class HeaderFieldTokenizer {
public:
explicit HeaderFieldTokenizer(const String&);
// Try to parse a separator character, a token or either a token or a quoted
// string from the |header_field| input. Return |true| on success. Return
// |false| if the separator character, the token or the quoted string is
// missing or invalid.
bool consume(UChar);
String consumeToken();
String consumeTokenOrQuotedString();
// Consume all characters before (but excluding) any of the characters from
// the Vector parameter are found.
// Because we potentially have to iterate through the entire Vector for each
// character of the base string, the Vector should be small (< 3 members).
void consumeBeforeAnyCharMatch(const Vector<UChar>&);
bool isConsumed() const { return m_index >= m_input.length(); }
private:
String consumeQuotedString();
void skipSpaces();
unsigned m_index = 0;
const String m_input;
};
} // namespace WebCore
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