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LibUnicode: Generate currency unit-pattern number formats

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These are used when formatting a number as currency with a display
option of "name" (e.g. for USD, the name is "US Dollars" in en-US).

These patterns appear in the CLDR in a different manner than other
number formats that are pluralized. They are of the form "{0} {1}",
therefore do not undergo subpattern replacements.
This commit is contained in:
Timothy Flynn 2021-11-12 17:16:30 -05:00 • committed by Linus Groh
parent 39e031c4dd
commit 9421d5c0cf
Notes: sideshowbarker 2024-07-18 01:12:04 +09:00
2 changed files with 32 additions and 9 deletions
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40
Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeNumberFormat.cpp
View file

@ -63,6 +63,7 @@ struct NumberSystem {
NumberFormat currency_format {};
NumberFormat accounting_format {};
Vector<NumberFormat> currency_unit_formats {};
Vector<NumberFormat> currency_short_formats {};
NumberFormat percent_format {};
@ -78,11 +79,17 @@ struct UnicodeLocaleData {
Vector<String> numeric_symbols;
};
static void parse_number_pattern(String pattern, UnicodeLocaleData& locale_data, NumberFormat& format)
static void parse_number_pattern(String pattern, UnicodeLocaleData& locale_data, NumberFormat& format, bool is_unit_pattern = false)
{
// https://unicode.org/reports/tr35/tr35-numbers.html#Number_Format_Patterns
// https://cldr.unicode.org/translation/number-currency-formats/number-and-currency-patterns
auto replace_patterns = [](String pattern) {
auto replace_patterns = [&](String pattern) {
if (is_unit_pattern) {
// Skip parsing unit patterns, which are of the form "{0} {1}", and do not contain any
// of the replacement patterns below.
return pattern;
}
static HashMap<StringView, StringView> replacements = {
{ "%"sv, "{percentSign}"sv },
{ "+"sv, "{plusSign}"sv },
@ -162,15 +169,22 @@ static void parse_number_systems(String locale_numbers_path, UnicodeLocaleData&
format_object.for_each_member([&](auto const& key, JsonValue const& value) {
auto split_key = key.split_view('-');
VERIFY(split_key.size() == 3);
auto type = split_key[0].template to_uint<u64>().value();
VERIFY(type % 10 == 0);
if (split_key.size() != 3)
return;
NumberFormat format {};
format.magnitude = static_cast<u8>(log10(type));
bool is_unit_pattern = false;
if (auto type = split_key[0].template to_uint<u64>(); type.has_value()) {
VERIFY(*type % 10 == 0);
format.magnitude = static_cast<u8>(log10(*type));
} else {
VERIFY(split_key[0] == "unitPattern"sv);
is_unit_pattern = true;
}
format.plurality = NumberFormat::plurality_from_string(split_key[2]);
parse_number_pattern(value.as_string(), locale_data, format);
parse_number_pattern(value.as_string(), locale_data, format, is_unit_pattern);
result.append(move(format));
});
@ -217,6 +231,8 @@ static void parse_number_systems(String locale_numbers_path, UnicodeLocaleData&
format_object = value.as_object().get("accounting"sv);
parse_number_pattern(format_object.as_string(), locale_data, number_system.accounting_format);
number_system.currency_unit_formats = parse_number_format(value.as_object());
if (value.as_object().has("short"sv)) {
auto const& short_format = value.as_object().get("short"sv).as_object().get("standard"sv);
number_system.currency_short_formats = parse_number_format(short_format.as_object());
@ -361,6 +377,7 @@ struct NumberSystem {
NumberFormat currency_format {};
NumberFormat accounting_format {};
Span<NumberFormat const> currency_unit_formats {};
Span<NumberFormat const> currency_short_formats {};
NumberFormat percent_format {};
@ -413,6 +430,7 @@ static constexpr Array<NumberFormat, @size@> @name@ { {
for (auto const& number_system : number_systems) {
append_number_formats(format_name(number_system.key, "dl"sv), number_system.value.decimal_long_formats);
append_number_formats(format_name(number_system.key, "ds"sv), number_system.value.decimal_short_formats);
append_number_formats(format_name(number_system.key, "cu"sv), number_system.value.currency_unit_formats);
append_number_formats(format_name(number_system.key, "cs"sv), number_system.value.currency_short_formats);
}
@ -426,6 +444,7 @@ static constexpr Array<NumberSystem, @size@> @name@ { {)~~~");
generator.set("system"sv, String::number(number_system.value.system));
generator.set("decimal_long_formats"sv, format_name(number_system.key, "dl"sv));
generator.set("decimal_short_formats"sv, format_name(number_system.key, "ds"sv));
generator.set("currency_unit_formats"sv, format_name(number_system.key, "cu"sv));
generator.set("currency_short_formats"sv, format_name(number_system.key, "cs"sv));
generator.append(R"~~~(
{ @system@, {)~~~");
@ -442,7 +461,7 @@ static constexpr Array<NumberSystem, @size@> @name@ { {)~~~");
append_number_format(number_system.value.currency_format);
generator.append(" ");
append_number_format(number_system.value.accounting_format);
generator.append(" @currency_short_formats@.span(), ");
generator.append(" @currency_unit_formats@.span(), @currency_short_formats@.span(), ");
append_number_format(number_system.value.percent_format);
generator.append(" },");
}
@ -530,6 +549,9 @@ Vector<Unicode::NumberFormat> get_compact_number_system_formats(StringView local
case CompactNumberFormatType::DecimalShort:
number_formats = number_system->decimal_short_formats;
break;
case CompactNumberFormatType::CurrencyUnit:
number_formats = number_system->currency_unit_formats;
break;
case CompactNumberFormatType::CurrencyShort:
number_formats = number_system->currency_short_formats;
break;

1
Userland/Libraries/LibUnicode/Locale.h
View file

@ -95,6 +95,7 @@ enum class StandardNumberFormatType : u8 {
enum class CompactNumberFormatType : u8 {
DecimalLong,
DecimalShort,
CurrencyUnit,
CurrencyShort,
};