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LibUnicode: Parse and generate the Unicode locale list patterns dataset

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This data informs consumers how to join lists of values. For example,
in en-US, the list ["a", "b", "c"] formatted to a string should become
"a, b, and c".
This commit is contained in:
Timothy Flynn 2021-09-06 13:56:44 -04:00 • committed by Linus Groh
parent 9cd986d8c0
commit 3f64a14e06
4 changed files with 172 additions and 10 deletions
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3
Userland/Libraries/LibUnicode/Forward.h
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@ -13,6 +13,8 @@ namespace Unicode {
enum class Condition : u8;
enum class GeneralCategory : u8;
enum class Language : u8;
enum class ListPatternStyle : u8;
enum class ListPatternType : u8;
enum class Locale : u16;
enum class Property : u8;
enum class Script : u8;
@ -21,6 +23,7 @@ enum class WordBreakProperty : u8;
struct Keyword;
struct LanguageID;
struct ListPatterns;
struct LocaleExtension;
struct LocaleID;
struct OtherExtension;

9
Userland/Libraries/LibUnicode/Locale.cpp
View file

@ -798,6 +798,15 @@ Optional<StringView> get_locale_currency_mapping([[maybe_unused]] StringView loc
#endif
}
Optional<ListPatterns> get_locale_list_patterns([[maybe_unused]] StringView locale, [[maybe_unused]] StringView type, [[maybe_unused]] StringView style)
{
#if ENABLE_UNICODE_DATA
return Detail::get_locale_list_pattern_mapping(locale, type, style);
#else
return {};
#endif
}
Optional<StringView> resolve_language_alias(StringView language)
{
#if ENABLE_UNICODE_DATA

8
Userland/Libraries/LibUnicode/Locale.h
View file

@ -78,6 +78,13 @@ struct LocaleID {
Vector<String> private_use_extensions {};
};
struct ListPatterns {
StringView start;
StringView middle;
StringView end;
StringView pair;
};
// Note: These methods only verify that the provided strings match the EBNF grammar of the
// Unicode identifier subtag (i.e. no validation is done that the tags actually exist).
constexpr bool is_unicode_language_subtag(StringView subtag)
@ -130,6 +137,7 @@ Optional<StringView> get_locale_language_mapping(StringView locale, StringView l
Optional<StringView> get_locale_territory_mapping(StringView locale, StringView territory);
Optional<StringView> get_locale_script_mapping(StringView locale, StringView script);
Optional<StringView> get_locale_currency_mapping(StringView locale, StringView currency);
Optional<ListPatterns> get_locale_list_patterns(StringView locale, StringView type, StringView style);
Optional<StringView> resolve_language_alias(StringView language);
Optional<StringView> resolve_territory_alias(StringView territory);