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LibUnicode: Generate a method to lookup locale-preferred keyword values

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Timothy Flynn 2022-07-14 13:14:11 -04:00 • committed by Andreas Kling
parent 80568d5776
commit f8f7015419
3 changed files with 57 additions and 21 deletions
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76
Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeLocale.cpp
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@ -1547,27 +1547,8 @@ Optional<StringView> get_locale_@enum_snake@_mapping(StringView locale, StringVi
generate_value_to_string(generator, "{}_to_string"sv, "CharacterOrder"sv, "character_order"sv, format_identifier, locale_data.character_orders);
generator.append(R"~~~(
Vector<StringView> get_keywords_for_locale(StringView locale, StringView key)
static Span<@string_index_type@ const> find_keyword_indices(StringView locale, StringView key)
{
// Hour cycle keywords are region-based rather than locale-based, so they need to be handled specially.
// FIXME: Calendar keywords are also region-based, and will need to be handled here when we support non-Gregorian calendars:
// https://github.com/unicode-org/cldr-json/blob/main/cldr-json/cldr-core/supplemental/calendarPreferenceData.json
if (key == "hc"sv) {
auto hour_cycles = get_locale_hour_cycles(locale);
Vector<StringView> values;
values.ensure_capacity(hour_cycles.size());
for (auto hour_cycle : hour_cycles)
values.unchecked_append(hour_cycle_to_string(hour_cycle));
return values;
}
// FIXME: Generate locale-preferred collation data when available in the CLDR.
if (key == "co"sv)
return Vector<StringView> { get_available_collation_types() };
auto locale_value = locale_from_string(locale);
if (!locale_value.has_value())
return {};
@ -1596,7 +1577,60 @@ Vector<StringView> get_keywords_for_locale(StringView locale, StringView key)
VERIFY_NOT_REACHED();
}
auto keyword_indices = s_keyword_lists.at(keywords_index);
return s_keyword_lists.at(keywords_index);
}
Optional<StringView> get_preferred_keyword_value_for_locale(StringView locale, StringView key)
{
// Hour cycle keywords are region-based rather than locale-based, so they need to be handled specially.
// FIXME: Calendar keywords are also region-based, and will need to be handled here when we support non-Gregorian calendars:
// https://github.com/unicode-org/cldr-json/blob/main/cldr-json/cldr-core/supplemental/calendarPreferenceData.json
if (key == "hc"sv) {
auto hour_cycles = get_locale_hour_cycles(locale);
if (hour_cycles.is_empty())
return {};
return hour_cycle_to_string(hour_cycles[0]);
}
// FIXME: Generate locale-preferred collation data when available in the CLDR.
if (key == "co"sv) {
auto collations = get_available_collation_types();
if (collations.is_empty())
return {};
return collations[0];
}
auto keyword_indices = find_keyword_indices(locale, key);
if (keyword_indices.is_empty())
return {};
return s_string_list[keyword_indices[0]];
}
Vector<StringView> get_keywords_for_locale(StringView locale, StringView key)
{
// Hour cycle keywords are region-based rather than locale-based, so they need to be handled specially.
// FIXME: Calendar keywords are also region-based, and will need to be handled here when we support non-Gregorian calendars:
// https://github.com/unicode-org/cldr-json/blob/main/cldr-json/cldr-core/supplemental/calendarPreferenceData.json
if (key == "hc"sv) {
auto hour_cycles = get_locale_hour_cycles(locale);
Vector<StringView> values;
values.ensure_capacity(hour_cycles.size());
for (auto hour_cycle : hour_cycles)
values.unchecked_append(hour_cycle_to_string(hour_cycle));
return values;
}
// FIXME: Generate locale-preferred collation data when available in the CLDR.
if (key == "co"sv)
return Vector<StringView> { get_available_collation_types() };
auto keyword_indices = find_keyword_indices(locale, key);
Vector<StringView> keywords;
keywords.ensure_capacity(keyword_indices.size());