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LibWeb: Add basic support for :lang() CSS selector

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This doesn't have parsing support for multiple languages in the same
selector. Support for language subcodes is not great either. But it
does do the basics.
This commit is contained in:
Andreas Kling 2022-03-20 12:39:11 +01:00
parent 5d672717aa
commit bdd42c9b0e
4 changed files with 52 additions and 1 deletions
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8
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -603,6 +603,14 @@ Result<Selector::SimpleSelector, Parser::ParsingResult> Parser::parse_simple_sel
return ParsingResult::SyntaxError;
}
simple_selector.pseudo_class.argument_selector_list = not_selector.release_value();
} else if (pseudo_function.name().equals_ignoring_case("lang"sv)) {
simple_selector.pseudo_class.type = Selector::SimpleSelector::PseudoClass::Type::Lang;
if (pseudo_function.values().is_empty()) {
dbgln_if(CSS_PARSER_DEBUG, "Empty :lang() selector");
return ParsingResult::SyntaxError;
}
// FIXME: Support multiple, comma-separated, language ranges.
simple_selector.pseudo_class.languages.append(pseudo_function.values().first().token().to_string());
} else if (pseudo_function.name().equals_ignoring_case("nth-child"sv)) {
simple_selector.pseudo_class.type = Selector::SimpleSelector::PseudoClass::Type::NthChild;
if (!parse_nth_child_pattern(simple_selector, pseudo_function, true))