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LibUnicode: Precompute the compact scale of each number formatting rule

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This will be needed for the ComputeExponentForMagnitude AO for compact
formatting, namely step 5b:

  Let exponent be an implementation- and locale-dependent (ILD) integer
  by which to scale a number of the given magnitude in compact notation
  for the current locale.
This commit is contained in:
Timothy Flynn 2021-11-10 10:16:57 -05:00 committed by Linus Groh
parent 230b133ee3
commit be69eae651
Notes: sideshowbarker 2024-07-18 01:15:10 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/be69eae651a
Pull-request: https://github.com/SerenityOS/serenity/pull/10873
Reviewed-by: https://github.com/linusg
2 changed files with 12 additions and 1 deletions
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12
Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeLocale.cpp
View file

@ -550,6 +550,13 @@ static void parse_number_pattern(String pattern, UnicodeLocaleData& locale_data,
auto patterns = pattern.split(';');
VERIFY((patterns.size() == 1) || (patterns.size() == 2));
if (format.magnitude != 0) {
auto number_of_zeroes_in_pattern = patterns[0].count("0"sv);
VERIFY(format.magnitude >= number_of_zeroes_in_pattern);
format.compact_scale = format.magnitude - number_of_zeroes_in_pattern;
}
auto zero_format = replace_patterns(move(patterns[0]));
format.positive_format_index = ensure_unique_string(locale_data, String::formatted("{{plusSign}}{}", zero_format));
@ -964,6 +971,7 @@ struct NumberFormat {
Unicode::NumberFormat number_format {};
number_format.magnitude = magnitude;
number_format.compact_scale = compact_scale;
number_format.plurality = static_cast<Unicode::NumberFormat::Plurality>(plurality);
number_format.zero_format = s_string_list[zero_format];
number_format.positive_format = s_string_list[positive_format];
@ -973,6 +981,7 @@ struct NumberFormat {
}
u8 magnitude { 0 };
u8 compact_scale { 0 };
u8 plurality { 0 };
@string_index_type@ zero_format { 0 };
@string_index_type@ positive_format { 0 };
@ -1051,11 +1060,12 @@ static constexpr Array<@string_index_type@, @size@> @name@ { {
auto append_number_format = [&](auto const& number_format) {
generator.set("magnitude"sv, String::number(number_format.magnitude));
generator.set("compact_scale"sv, String::number(number_format.compact_scale));
generator.set("plurality"sv, String::number(static_cast<u8>(number_format.plurality)));
generator.set("zero_format"sv, String::number(number_format.zero_format_index));
generator.set("positive_format"sv, String::number(number_format.positive_format_index));
generator.set("negative_format"sv, String::number(number_format.negative_format_index));
generator.append("{ @magnitude@, @plurality@, @zero_format@, @positive_format@, @negative_format@ },");
generator.append("{ @magnitude@, @compact_scale@, @plurality@, @zero_format@, @positive_format@, @negative_format@ },");
};
auto append_number_formats = [&](String name, auto const& number_formats) {

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

@ -103,6 +103,7 @@ struct NumberFormat {
};
u8 magnitude { 0 };
u8 compact_scale { 0 };
Plurality plurality { Plurality::Other };
StringView zero_format {};
StringView positive_format {};