65 lines
2.6 KiB
C++
65 lines
2.6 KiB
C++
/*
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* Copyright 2017 The Chromium Authors. All rights reserved.
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* Copyright (C) 2018 Akamai Technologies Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <wtf/text/WTFString.h>
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namespace WebCore {
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// Parses header fields into tokens, quoted strings and separators.
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// Commonly used by ParsedContent* classes.
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class HeaderFieldTokenizer {
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public:
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explicit HeaderFieldTokenizer(const String&);
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// Try to parse a separator character, a token or either a token or a quoted
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// string from the |header_field| input. Return |true| on success. Return
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// |false| if the separator character, the token or the quoted string is
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// missing or invalid.
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bool consume(UChar);
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String consumeToken();
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String consumeTokenOrQuotedString();
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// Consume all characters before (but excluding) any of the characters from
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// the Vector parameter are found.
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// Because we potentially have to iterate through the entire Vector for each
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// character of the base string, the Vector should be small (< 3 members).
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void consumeBeforeAnyCharMatch(const Vector<UChar>&);
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bool isConsumed() const { return m_index >= m_input.length(); }
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private:
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String consumeQuotedString();
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void skipSpaces();
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unsigned m_index = 0;
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const String m_input;
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};
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} // namespace WebCore
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