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LibWeb: Implement :nth-[last-]child(n of foo)
syntax
In Selectors level 4, `:nth-child()` and `:nth-last-child()` can both optionally take a selector-list argument. This selector-list acts as a filter, so that only elements matching the list are counted. For example, this means that the following are equivalent: ```css :nth-child(2n+1 of p) {} p:nth-of-type(2n+1) {} ```
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5 changed files with 92 additions and 25 deletions
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@ -157,7 +157,11 @@ private:
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template<typename T>
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RefPtr<Supports> parse_a_supports(TokenStream<T>&);
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Optional<Selector::SimpleSelector::ANPlusBPattern> parse_a_n_plus_b_pattern(TokenStream<StyleComponentValueRule>&);
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enum class AllowTrailingTokens {
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No,
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Yes
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};
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Optional<Selector::SimpleSelector::ANPlusBPattern> parse_a_n_plus_b_pattern(TokenStream<StyleComponentValueRule>&, AllowTrailingTokens = AllowTrailingTokens::No);
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template<typename T>
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[[nodiscard]] NonnullRefPtrVector<StyleRule> consume_a_list_of_rules(TokenStream<T>&, bool top_level);
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