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	If we don't do this, something like "a:visited" is parsed as "a" which may then take precedence over a previous "a:link" etc.
		
			
				
	
	
		
			100 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			100 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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 * 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 are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice, this
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 *    list of conditions and the following disclaimer.
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 *
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 *    this list of conditions and the following disclaimer in the documentation
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 *    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 "AS IS"
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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 * OR TORT (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 <AK/FlyString.h>
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#include <AK/Vector.h>
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#include <LibWeb/CSS/Specificity.h>
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namespace Web {
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class Selector {
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public:
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    struct SimpleSelector {
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        enum class Type {
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            Invalid,
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            Universal,
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            TagName,
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            Id,
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            Class,
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        };
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        Type type { Type::Invalid };
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        enum class PseudoClass {
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            None,
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            Link,
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            Visited,
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            Hover,
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            Focus,
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            FirstChild,
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            LastChild,
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            OnlyChild,
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            Empty,
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            Root,
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        };
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        PseudoClass pseudo_class { PseudoClass::None };
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        FlyString value;
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        enum class AttributeMatchType {
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            None,
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            HasAttribute,
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            ExactValueMatch,
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            Contains,
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        };
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        AttributeMatchType attribute_match_type { AttributeMatchType::None };
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        FlyString attribute_name;
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        String attribute_value;
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    };
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    struct ComplexSelector {
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        enum class Relation {
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            None,
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            ImmediateChild,
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            Descendant,
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            AdjacentSibling,
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            GeneralSibling,
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        };
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        Relation relation { Relation::None };
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        using CompoundSelector = Vector<SimpleSelector>;
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        CompoundSelector compound_selector;
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    };
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    explicit Selector(Vector<ComplexSelector>&&);
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    ~Selector();
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    const Vector<ComplexSelector>& complex_selectors() const { return m_complex_selectors; }
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    Specificity specificity() const;
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private:
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    Vector<ComplexSelector> m_complex_selectors;
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};
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}
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