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LibUnicode: Use BCP 47 data to filter valid calendar names

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Timothy Flynn 2022-02-15 14:59:26 -05:00 • committed by Tim Flynn
parent 71d86261c3
commit 70ede2825e
4 changed files with 25 additions and 12 deletions
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33
Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeDateTimeFormat.cpp
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@ -569,10 +569,6 @@ struct UnicodeLocaleData {
Vector<String> time_zones { "UTC"sv };
Vector<String> calendars;
Vector<Alias> calendar_aliases {
// FIXME: Aliases should come from BCP47. See: https://unicode-org.atlassian.net/browse/CLDR-15158
{ "gregorian"sv, "gregory"sv },
};
};
static Optional<Unicode::DayPeriod> day_period_from_string(StringView day_period)
@ -1633,7 +1629,7 @@ static ErrorOr<void> generate_unicode_locale_header(Core::Stream::BufferedFile&
namespace Unicode {
)~~~");
generate_enum(generator, format_identifier, "Calendar"sv, {}, locale_data.calendars, locale_data.calendar_aliases);
generate_enum(generator, format_identifier, "Calendar"sv, {}, locale_data.calendars);
generate_enum(generator, format_identifier, "HourCycleRegion"sv, {}, locale_data.hour_cycle_regions);
generator.append(R"~~~(
@ -1672,6 +1668,7 @@ static ErrorOr<void> generate_unicode_locale_implementation(Core::Stream::Buffer
#include <LibUnicode/DateTimeFormat.h>
#include <LibUnicode/Locale.h>
#include <LibUnicode/UnicodeDateTimeFormat.h>
#include <LibUnicode/UnicodeLocale.h>
namespace Unicode {
)~~~");
@ -1929,10 +1926,26 @@ static constexpr Array<@type@, @size@> @name@ { {)~~~");
generate_value_from_string(generator, "{}_from_string"sv, enum_title, enum_snake, move(hashes));
};
append_from_string("Calendar"sv, "calendar"sv, locale_data.calendars, locale_data.calendar_aliases);
append_from_string("HourCycleRegion"sv, "hour_cycle_region"sv, locale_data.hour_cycle_regions);
generator.append(R"~~~(
static Optional<Calendar> keyword_to_calendar(KeywordCalendar keyword)
{
switch (keyword) {)~~~");
for (auto const& calendar : locale_data.calendars) {
generator.set("name"sv, format_identifier({}, calendar));
generator.append(R"~~~(
case KeywordCalendar::@name@:
return Calendar::@name@;)~~~");
}
generator.append(R"~~~(
default:
return {};
}
}
Vector<HourCycle> get_regional_hour_cycles(StringView region)
{
auto region_value = hour_cycle_region_from_string(region);
@ -1959,9 +1972,13 @@ static CalendarData const* find_calendar_data(StringView locale, StringView cale
if (!locale_value.has_value())
return nullptr;
auto calendar_value = calendar_from_string(calendar);
auto calendar_keyword = keyword_ca_from_string(calendar);
if (!calendar_keyword.has_value())
return {};
auto calendar_value = keyword_to_calendar(*calendar_keyword);
if (!calendar_value.has_value())
return nullptr;
return {};
auto locale_index = to_underlying(*locale_value) - 1; // Subtract 1 because 0 == Locale::None.
size_t calendar_index = to_underlying(*calendar_value);