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LibUnicode: Add public methods to compare and lookup General Categories

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Adds methods to retrieve a General Category from a string and to check
if a code point matches a General Category.
This commit is contained in:
Timothy Flynn 2021-07-31 16:38:24 -04:00 • committed by Ali Mohammad Pur
parent f63287cd63
commit 5de6d3dd90
Notes: sideshowbarker 2024-07-18 07:34:30 +09:00
3 changed files with 58 additions and 1 deletions
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27
Userland/Libraries/LibUnicode/CharacterTypes.cpp
View file

@ -22,6 +22,11 @@ namespace Unicode {
#if ENABLE_UNICODE_DATA
static bool has_general_category(UnicodeData const& unicode_data, GeneralCategory general_category)
{
return (unicode_data.general_category & general_category) != GeneralCategory::None;
}
static bool has_property(UnicodeData const& unicode_data, Property property)
{
return (unicode_data.properties & property) == property;
@ -197,6 +202,28 @@ String to_unicode_uppercase_full(StringView const& string)
#endif
}
Optional<GeneralCategory> general_category_from_string([[maybe_unused]] StringView const& general_category)
{
#if ENABLE_UNICODE_DATA
return Detail::general_category_from_string(general_category);
#else
return {};
#endif
}
bool code_point_has_general_category([[maybe_unused]] u32 code_point, [[maybe_unused]] GeneralCategory general_category)
{
#if ENABLE_UNICODE_DATA
auto unicode_data = Detail::unicode_data_for_code_point(code_point);
if (!unicode_data.has_value())
return false;
return has_general_category(*unicode_data, general_category);
#else
return {};
#endif
}
Optional<Property> property_from_string([[maybe_unused]] StringView const& property)
{
#if ENABLE_UNICODE_DATA

3
Userland/Libraries/LibUnicode/CharacterTypes.h
View file

@ -21,6 +21,9 @@ u32 to_unicode_uppercase(u32 code_point);
String to_unicode_lowercase_full(StringView const&);
String to_unicode_uppercase_full(StringView const&);
Optional<GeneralCategory> general_category_from_string(StringView const&);
bool code_point_has_general_category(u32 code_point, GeneralCategory general_category);
Optional<Property> property_from_string(StringView const&);
bool code_point_has_property(u32 code_point, Property property);
bool is_ecma262_property(Property);

29
Userland/Libraries/LibUnicode/CodeGenerators/GenerateUnicodeData.cpp
View file

@ -478,7 +478,7 @@ namespace Unicode {
generate_enum("Locale"sv, "None"sv, move(unicode_data.locales));
generate_enum("Condition"sv, "None"sv, move(unicode_data.conditions));
generate_enum("GeneralCategory"sv, "None"sv, move(unicode_data.general_categories), move(unicode_data.general_category_unions), move(unicode_data.general_category_aliases), true);
generate_enum("GeneralCategory"sv, "None"sv, unicode_data.general_categories, unicode_data.general_category_unions, unicode_data.general_category_aliases, true);
generate_enum("Property"sv, "Assigned"sv, unicode_data.prop_list.keys(), {}, unicode_data.prop_aliases, true);
generate_enum("WordBreakProperty"sv, "Other"sv, unicode_data.word_break_prop_list.keys());
@ -541,6 +541,7 @@ namespace Detail {
Optional<UnicodeData> unicode_data_for_code_point(u32 code_point);
Optional<Property> property_from_string(StringView const& property);
Optional<GeneralCategory> general_category_from_string(StringView const& general_category);
}
@ -716,6 +717,32 @@ Optional<Property> property_from_string(StringView const& property)
return {};
}
Optional<GeneralCategory> general_category_from_string(StringView const& general_category)
{)~~~");
for (auto const& general_category : unicode_data.general_categories) {
generator.set("general_category", general_category);
generator.append(R"~~~(
if (general_category == "@general_category@"sv)
return GeneralCategory::@general_category@;)~~~");
}
for (auto const& union_ : unicode_data.general_category_unions) {
generator.set("general_category", union_.alias);
generator.append(R"~~~(
if (general_category == "@general_category@"sv)
return GeneralCategory::@general_category@;)~~~");
}
for (auto const& alias : unicode_data.general_category_aliases) {
generator.set("general_category", alias.alias);
generator.append(R"~~~(
if (general_category == "@general_category@"sv)
return GeneralCategory::@general_category@;)~~~");
}
generator.append(R"~~~(
return {};
}
}
})~~~");