036b5c2804
It's not finished or hooked up to anything yet, but let's get it into the tree so we can continue working on it. Original work by @stelar7.
107 lines
5.2 KiB
C++
107 lines
5.2 KiB
C++
/*
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* Copyright (c) 2020-2021, SerenityOS developers
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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/NonnullOwnPtrVector.h>
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#include <AK/Vector.h>
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#include <LibWeb/CSS/Parser/AtStyleRule.h>
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#include <LibWeb/CSS/Parser/DeclarationOrAtRule.h>
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#include <LibWeb/CSS/Parser/QualifiedStyleRule.h>
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#include <LibWeb/CSS/Parser/StyleBlockRule.h>
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#include <LibWeb/CSS/Parser/StyleComponentValueRule.h>
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#include <LibWeb/CSS/Parser/StyleDeclarationRule.h>
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#include <LibWeb/CSS/Parser/StyleFunctionRule.h>
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#include <LibWeb/CSS/Parser/Tokenizer.h>
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#include <LibWeb/CSS/Selector.h>
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namespace Web::CSS {
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class Parser {
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public:
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Parser(const StringView& input, const String& encoding = "utf-8");
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~Parser();
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// The normal parser entry point, for parsing stylesheets.
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Vector<QualifiedStyleRule> parse_as_stylesheet();
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// For the content of at-rules such as @media. It differs from "Parse a stylesheet" in the handling of <CDO-token> and <CDC-token>.
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Vector<QualifiedStyleRule> parse_as_list_of_rules();
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// For use by the CSSStyleSheet#insertRule method, and similar functions which might exist, which parse text into a single rule.
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Optional<QualifiedStyleRule> parse_as_rule();
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// Used in @supports conditions. [CSS3-CONDITIONAL]
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Optional<StyleDeclarationRule> parse_as_declaration();
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// For the contents of a style attribute, which parses text into the contents of a single style rule.
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Vector<DeclarationOrAtRule> parse_as_list_of_declarations();
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// For things that need to consume a single value, like the parsing rules for attr().
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Optional<StyleComponentValueRule> parse_as_component_value();
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// For the contents of presentational attributes, which parse text into a single declaration’s value, or for parsing a stand-alone selector [SELECT] or list of Media Queries [MEDIAQ], as in Selectors API or the media HTML attribute.
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Vector<StyleComponentValueRule> parse_as_list_of_component_values();
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Vector<StyleComponentValueRule> parse_as_list_of_comma_separated_component_values();
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Vector<CSS::Selector::ComplexSelector> parse_selectors(Vector<String> parts);
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// FIXME: https://www.w3.org/TR/selectors-4/
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Optional<String> parse_a_selector() { return {}; }
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Optional<String> parse_a_relative_selector() { return {}; }
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bool match_a_selector_against_an_element() { return false; }
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bool match_a_selector_against_a_pseudo_element() { return false; }
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bool match_a_selector_against_a_tree() { return false; }
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// FIXME: https://drafts.csswg.org/css-backgrounds-3/
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static Optional<String> as_valid_background_repeat(String input) { return input; }
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static Optional<String> as_valid_background_attachment(String input) { return input; }
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static Optional<String> as_valid_background_position(String input) { return input; }
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static Optional<String> as_valid_background_clip(String input) { return input; }
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static Optional<String> as_valid_background_origin(String input) { return input; }
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static Optional<String> as_valid_background_size(String input) { return input; }
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static Optional<String> as_valid_border_style(String input) { return input; }
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static Optional<String> as_valid_border_image_repeat(String input) { return input; }
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void dump_all_tokens();
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private:
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Token next_token();
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Token peek_token();
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Token current_token();
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void reconsume_current_input_token();
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Vector<QualifiedStyleRule> consume_a_list_of_rules(bool top_level);
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AtStyleRule consume_an_at_rule();
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Optional<QualifiedStyleRule> consume_a_qualified_rule();
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Vector<DeclarationOrAtRule> consume_a_list_of_declarations();
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Optional<StyleDeclarationRule> consume_a_declaration(Vector<StyleComponentValueRule>);
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Optional<StyleDeclarationRule> consume_a_declaration();
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StyleComponentValueRule consume_a_component_value();
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StyleBlockRule consume_a_simple_block();
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StyleFunctionRule consume_a_function();
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Tokenizer m_tokenizer;
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Vector<Token> m_tokens;
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int m_iterator_offset { -1 };
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};
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}
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