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LibUnicode: Generate primary and secondary number grouping sizes
Most locales have a single grouping size (the number of integer digits to be written before inserting a grouping separator). However some have a primary and secondary size. We parse the primary size as the size used for the least significant integer digits, and the secondary size for the most significant.
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@ -57,6 +57,9 @@ struct NumberSystem {
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StringIndexType system { 0 };
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HashMap<String, StringIndexType> symbols {};
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u8 primary_grouping_size { 0 };
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u8 secondary_grouping_size { 0 };
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NumberFormat decimal_format {};
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Vector<NumberFormat> decimal_long_formats {};
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Vector<NumberFormat> decimal_short_formats {};
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@ -79,7 +82,7 @@ struct UnicodeLocaleData {
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Vector<String> numeric_symbols;
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};
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static void parse_number_pattern(String pattern, UnicodeLocaleData& locale_data, NumberFormat& format)
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static void parse_number_pattern(String pattern, UnicodeLocaleData& locale_data, NumberFormat& format, NumberSystem* number_system_for_groupings = nullptr)
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{
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// https://unicode.org/reports/tr35/tr35-numbers.html#Number_Format_Patterns
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// https://cldr.unicode.org/translation/number-currency-formats/number-and-currency-patterns
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@ -105,6 +108,24 @@ static void parse_number_pattern(String pattern, UnicodeLocaleData& locale_data,
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break;
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}
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if (number_system_for_groupings) {
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auto number_pattern = pattern.substring_view(*start_number_index, end_number_index - *start_number_index);
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auto group_separators = number_pattern.find_all(","sv);
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VERIFY((group_separators.size() == 1) || (group_separators.size() == 2));
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auto decimal = number_pattern.find('.');
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VERIFY(decimal.has_value());
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if (group_separators.size() == 1) {
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number_system_for_groupings->primary_grouping_size = *decimal - group_separators[0] - 1;
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number_system_for_groupings->secondary_grouping_size = number_system_for_groupings->primary_grouping_size;
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} else {
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number_system_for_groupings->primary_grouping_size = *decimal - group_separators[1] - 1;
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number_system_for_groupings->secondary_grouping_size = group_separators[1] - group_separators[0] - 1;
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}
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}
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pattern = String::formatted("{}{{number}}{}",
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*start_number_index > 0 ? pattern.substring_view(0, *start_number_index) : ""sv,
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pattern.substring_view(end_number_index));
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@ -208,7 +229,7 @@ static void parse_number_systems(String locale_numbers_path, UnicodeLocaleData&
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auto& number_system = ensure_number_system(system);
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auto format_object = value.as_object().get("standard"sv);
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parse_number_pattern(format_object.as_string(), locale_data, number_system.decimal_format);
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parse_number_pattern(format_object.as_string(), locale_data, number_system.decimal_format, &number_system);
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auto const& long_format = value.as_object().get("long"sv).as_object().get("decimalFormat"sv);
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number_system.decimal_long_formats = parse_number_format(long_format.as_object());
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@ -309,6 +330,7 @@ namespace Unicode {
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namespace Detail {
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Optional<StringView> get_number_system_symbol(StringView locale, StringView system, StringView numeric_symbol);
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Optional<NumberGroupings> get_number_system_groupings(StringView locale, StringView system);
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Optional<NumberFormat> get_standard_number_system_format(StringView locale, StringView system, StandardNumberFormatType type);
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Vector<NumberFormat> get_compact_number_system_formats(StringView locale, StringView system, CompactNumberFormatType type);
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Optional<NumericSymbol> numeric_symbol_from_string(StringView numeric_symbol);
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@ -367,6 +389,9 @@ struct NumberSystem {
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@string_index_type@ system { 0 };
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Array<@string_index_type@, @numeric_symbols_size@> symbols {};
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u8 primary_grouping_size { 0 };
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u8 secondary_grouping_size { 0 };
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NumberFormat decimal_format {};
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Span<NumberFormat const> decimal_long_formats {};
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Span<NumberFormat const> decimal_short_formats {};
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@ -438,6 +463,8 @@ static constexpr Array<NumberSystem, @size@> @name@ { {)~~~");
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for (auto const& number_system : number_systems) {
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generator.set("system"sv, String::number(number_system.value.system));
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generator.set("primary_grouping_size"sv, String::number(number_system.value.primary_grouping_size));
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generator.set("secondary_grouping_size"sv, String::number(number_system.value.secondary_grouping_size));
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generator.set("decimal_long_formats"sv, format_name(number_system.key, "dl"sv));
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generator.set("decimal_short_formats"sv, format_name(number_system.key, "ds"sv));
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generator.set("currency_unit_formats"sv, format_name(number_system.key, "cu"sv));
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@ -451,7 +478,7 @@ static constexpr Array<NumberSystem, @size@> @name@ { {)~~~");
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generator.append(" @index@,");
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}
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generator.append(" }, ");
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generator.append(" }, @primary_grouping_size@, @secondary_grouping_size@, ");
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append_number_format(number_system.value.decimal_format);
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generator.append(" @decimal_long_formats@.span(), @decimal_short_formats@.span(), ");
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append_number_format(number_system.value.currency_format);
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@ -513,6 +540,13 @@ Optional<StringView> get_number_system_symbol(StringView locale, StringView syst
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return {};
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}
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Optional<NumberGroupings> get_number_system_groupings(StringView locale, StringView system)
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{
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if (auto const* number_system = find_number_system(locale, system); number_system != nullptr)
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return NumberGroupings { number_system->primary_grouping_size, number_system->secondary_grouping_size };
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return {};
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}
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Optional<Unicode::NumberFormat> get_standard_number_system_format(StringView locale, StringView system, StandardNumberFormatType type)
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{
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if (auto const* number_system = find_number_system(locale, system); number_system != nullptr) {
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@ -30,6 +30,7 @@ struct ListPatterns;
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struct LocaleExtension;
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struct LocaleID;
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struct NumberFormat;
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struct NumberGroupings;
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struct OtherExtension;
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struct SpecialCasing;
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struct TransformedExtension;
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@ -824,6 +824,15 @@ Optional<StringView> get_number_system_symbol([[maybe_unused]] StringView locale
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#endif
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}
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Optional<NumberGroupings> get_number_system_groupings([[maybe_unused]] StringView locale, [[maybe_unused]] StringView system)
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{
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#if ENABLE_UNICODE_DATA
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return Detail::get_number_system_groupings(locale, system);
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#else
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return {};
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#endif
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}
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Vector<NumberFormat> get_compact_number_system_formats([[maybe_unused]] StringView locale, [[maybe_unused]] StringView system, [[maybe_unused]] CompactNumberFormatType type)
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{
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#if ENABLE_UNICODE_DATA
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@ -85,6 +85,11 @@ enum class Style : u8 {
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Numeric,
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};
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struct NumberGroupings {
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u8 primary_grouping_size { 0 };
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u8 secondary_grouping_size { 0 };
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};
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enum class StandardNumberFormatType : u8 {
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Decimal,
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Currency,
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@ -181,6 +186,7 @@ Optional<StringView> get_locale_script_mapping(StringView locale, StringView scr
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Optional<StringView> get_locale_currency_mapping(StringView locale, StringView currency, Style style);
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Vector<StringView> get_locale_key_mapping(StringView locale, StringView keyword);
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Optional<StringView> get_number_system_symbol(StringView locale, StringView system, StringView symbol);
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Optional<NumberGroupings> get_number_system_groupings(StringView locale, StringView system);
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Optional<NumberFormat> get_standard_number_system_format(StringView locale, StringView system, StandardNumberFormatType type);
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Vector<NumberFormat> get_compact_number_system_formats(StringView locale, StringView system, CompactNumberFormatType type);
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Optional<ListPatterns> get_locale_list_patterns(StringView locale, StringView type, StringView style);
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