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LibWeb: Move CSS unicode-ranges parsing code into a common helper

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This commit is contained in:
Andrew Kaster 2024-05-09 14:02:52 -06:00 • committed by Sam Atkins
commit de98c122d1
Notes: sideshowbarker 2024-07-16 23:34:44 +09:00
2 changed files with 20 additions and 16 deletions
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35
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
View file

@ -2137,6 +2137,22 @@ Optional<Gfx::UnicodeRange> Parser::parse_unicode_range(StringView text)
return make_valid_unicode_range(start_value, end_value);
}
Vector<Gfx::UnicodeRange> Parser::parse_unicode_ranges(TokenStream<ComponentValue>& tokens)
{
Vector<Gfx::UnicodeRange> unicode_ranges;
auto range_token_lists = parse_a_comma_separated_list_of_component_values(tokens);
for (auto& range_tokens : range_token_lists) {
TokenStream range_token_stream { range_tokens };
auto maybe_unicode_range = parse_unicode_range(range_token_stream);
if (!maybe_unicode_range.has_value()) {
dbgln_if(CSS_PARSER_DEBUG, "CSSParser: unicode-range format invalid; discarding.");
return {};
}
unicode_ranges.append(maybe_unicode_range.release_value());
}
return unicode_ranges;
}
RefPtr<StyleValue> Parser::parse_dimension_value(TokenStream<ComponentValue>& tokens)
{
auto dimension = parse_dimension(tokens.peek_token());
@ -4526,22 +4542,9 @@ CSSRule* Parser::parse_font_face_rule(TokenStream<ComponentValue>& tokens)
continue;
}
if (declaration.name().equals_ignoring_ascii_case("unicode-range"sv)) {
Vector<Gfx::UnicodeRange> unicode_ranges;
bool unicode_range_invalid = false;
TokenStream all_tokens { declaration.values() };
auto range_token_lists = parse_a_comma_separated_list_of_component_values(all_tokens);
for (auto& range_tokens : range_token_lists) {
TokenStream range_token_stream { range_tokens };
auto maybe_unicode_range = parse_unicode_range(range_token_stream);
if (!maybe_unicode_range.has_value()) {
dbgln_if(CSS_PARSER_DEBUG, "CSSParser: @font-face unicode-range format invalid; discarding.");
unicode_range_invalid = true;
break;
}
unicode_ranges.append(maybe_unicode_range.release_value());
}
if (unicode_range_invalid || unicode_ranges.is_empty())
TokenStream token_stream { declaration.values() };
auto unicode_ranges = parse_unicode_ranges(token_stream);
if (unicode_ranges.is_empty())
continue;
unicode_range = move(unicode_ranges);

1
Userland/Libraries/LibWeb/CSS/Parser/Parser.h
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@ -190,6 +190,7 @@ private:
Optional<Ratio> parse_ratio(TokenStream<ComponentValue>&);
Optional<Gfx::UnicodeRange> parse_unicode_range(TokenStream<ComponentValue>&);
Optional<Gfx::UnicodeRange> parse_unicode_range(StringView);
Vector<Gfx::UnicodeRange> parse_unicode_ranges(TokenStream<ComponentValue>&);
Optional<GridSize> parse_grid_size(ComponentValue const&);
Optional<GridMinMax> parse_min_max(Vector<ComponentValue> const&);
Optional<GridRepeat> parse_repeat(Vector<ComponentValue> const&);