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LibUnicode: Remove now-unused Unicode::select_pattern_with_plurality

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Timothy Flynn 2022-07-08 12:08:31 -04:00 • committed by Linus Groh
parent 5b68c1a06c
commit f672b4c151
1 changed files with 0 additions and 29 deletions
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29
Userland/Libraries/LibUnicode/NumberFormat.h
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@ -72,33 +72,4 @@ Vector<NumberFormat> get_unit_formats(StringView locale, StringView unit, Style
Optional<String> augment_currency_format_pattern(StringView currency_display, StringView base_pattern);
template<typename FormatType>
Optional<FormatType> select_pattern_with_plurality(Vector<FormatType> const& formats, double number)
{
// FIXME: This is a rather naive and locale-unaware implementation Unicode's TR-35 pluralization
// rules: https://www.unicode.org/reports/tr35/tr35-numbers.html#Language_Plural_Rules
// Once those rules are implemented for LibJS, we better use them instead.
auto find_plurality = [&](auto plurality) -> Optional<FormatType> {
if (auto it = formats.find_if([&](auto& patterns) { return patterns.plurality == plurality; }); it != formats.end())
return *it;
return {};
};
if (number == 0) {
if (auto patterns = find_plurality(PluralCategory::Zero); patterns.has_value())
return patterns;
} else if (number == 1) {
if (auto patterns = find_plurality(PluralCategory::One); patterns.has_value())
return patterns;
} else if (number == 2) {
if (auto patterns = find_plurality(PluralCategory::Two); patterns.has_value())
return patterns;
} else if (number > 2) {
if (auto patterns = find_plurality(PluralCategory::Many); patterns.has_value())
return patterns;
}
return find_plurality(PluralCategory::Other);
}
}