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LibUnicode: Generate standalone compile-time array for combining class

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Timothy Flynn 2021-10-09 19:14:23 -04:00 • committed by Andreas Kling
parent 9f83774913
commit d83b262e64
Notes: sideshowbarker 2024-07-18 02:51:19 +09:00
2 changed files with 31 additions and 24 deletions
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21
Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeData.cpp
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@ -88,6 +88,8 @@ struct CodePointData {
};
struct UnicodeData {
u32 code_points_with_non_zero_combining_class { 0 };
u32 simple_uppercase_mapping_size { 0 };
u32 simple_lowercase_mapping_size { 0 };
@ -438,6 +440,7 @@ static void parse_unicode_data(Core::File& file, UnicodeData& unicode_data)
}
}
unicode_data.code_points_with_non_zero_combining_class += data.canonical_combining_class != 0;
unicode_data.simple_uppercase_mapping_size += data.simple_uppercase_mapping.has_value();
unicode_data.simple_lowercase_mapping_size += data.simple_lowercase_mapping.has_value();
@ -564,6 +567,8 @@ namespace Detail {
Optional<UnicodeData> unicode_data_for_code_point(u32 code_point);
u32 canonical_combining_class(u32 code_point);
u32 simple_uppercase_mapping(u32 code_point);
u32 simple_lowercase_mapping(u32 code_point);
Span<SpecialCasing const* const> special_case_mapping(u32 code_point);
@ -750,6 +755,12 @@ static constexpr Array<@mapping_type@, @size@> s_@name@_mappings { {
)~~~");
};
append_code_point_mappings("combining_class"sv, "CodePointMapping"sv, unicode_data.code_points_with_non_zero_combining_class,
[](auto const& data) -> Optional<u32> {
if (data.canonical_combining_class == 0)
return {};
return data.canonical_combining_class;
});
append_code_point_mappings("uppercase"sv, "CodePointMapping"sv, unicode_data.simple_uppercase_mapping_size, [](auto const& data) { return data.simple_uppercase_mapping; });
append_code_point_mappings("lowercase"sv, "CodePointMapping"sv, unicode_data.simple_lowercase_mapping_size, [](auto const& data) { return data.simple_lowercase_mapping; });
append_code_point_mappings("special_case"sv, "SpecialCaseMapping"sv, unicode_data.code_points_with_special_casing, [](auto const& data) { return data.special_casing_indices; });
@ -877,20 +888,22 @@ Optional<UnicodeData> unicode_data_for_code_point(u32 code_point)
}
)~~~");
auto append_code_point_mapping_search = [&](StringView method, StringView mappings) {
auto append_code_point_mapping_search = [&](StringView method, StringView mappings, StringView fallback) {
generator.set("method", method);
generator.set("mappings", mappings);
generator.set("fallback", fallback);
generator.append(R"~~~(
u32 @method@(u32 code_point)
{
auto const* mapping = binary_search(@mappings@, code_point, nullptr, CodePointComparator<CodePointMapping> {});
return mapping ? mapping->mapping : code_point;
return mapping ? mapping->mapping : @fallback@;
}
)~~~");
};
append_code_point_mapping_search("simple_uppercase_mapping"sv, "s_uppercase_mappings"sv);
append_code_point_mapping_search("simple_lowercase_mapping"sv, "s_lowercase_mappings"sv);
append_code_point_mapping_search("canonical_combining_class"sv, "s_combining_class_mappings"sv, "0"sv);
append_code_point_mapping_search("simple_uppercase_mapping"sv, "s_uppercase_mappings"sv, "code_point"sv);
append_code_point_mapping_search("simple_lowercase_mapping"sv, "s_lowercase_mappings"sv, "code_point"sv);
generator.append(R"~~~(
Span<SpecialCasing const* const> special_case_mapping(u32 code_point)