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LibWeb: Implement the :where() selector
This is identical to :is() except for specificity, so we can use the same code paths. :^)
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5 changed files with 22 additions and 8 deletions
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@ -584,13 +584,17 @@ Result<Selector::SimpleSelector, Parser::ParsingResult> Parser::parse_simple_sel
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};
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auto& pseudo_function = pseudo_class_token.function();
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if (pseudo_function.name().equals_ignoring_case("is"sv)) {
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simple_selector.pseudo_class.type = Selector::SimpleSelector::PseudoClass::Type::Is;
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if (pseudo_function.name().equals_ignoring_case("is"sv)
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|| pseudo_function.name().equals_ignoring_case("where"sv)) {
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simple_selector.pseudo_class.type = pseudo_function.name().equals_ignoring_case("is"sv)
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? Selector::SimpleSelector::PseudoClass::Type::Is
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: Selector::SimpleSelector::PseudoClass::Type::Where;
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auto function_token_stream = TokenStream(pseudo_function.values());
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auto is_selector = parse_a_selector_list(function_token_stream, SelectorParsingMode::Forgiving);
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auto argument_selector_list = parse_a_selector_list(function_token_stream, SelectorParsingMode::Forgiving);
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// NOTE: Because it's forgiving, even complete garbage will parse OK as an empty selector-list.
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VERIFY(!is_selector.is_error());
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simple_selector.pseudo_class.argument_selector_list = is_selector.release_value();
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VERIFY(!argument_selector_list.is_error());
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simple_selector.pseudo_class.argument_selector_list = argument_selector_list.release_value();
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} else if (pseudo_function.name().equals_ignoring_case("not"sv)) {
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simple_selector.pseudo_class.type = Selector::SimpleSelector::PseudoClass::Type::Not;
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auto function_token_stream = TokenStream(pseudo_function.values());
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