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ebdb92eef6
LibLocale was split off from LibUnicode a couple years ago to reduce the number of applications on SerenityOS that depend on CLDR data. Now that we use ICU, both LibUnicode and LibLocale are actually linking in this data. And since vcpkg gives us static libraries, both libraries are over 30MB in size. This patch reverts the separation and merges LibLocale into LibUnicode again. We now have just one library that includes the ICU data. Further, this will let LibUnicode share the locale cache that previously would only exist in LibLocale.
259 lines
8.0 KiB
C++
259 lines
8.0 KiB
C++
/*
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* Copyright (c) 2022-2024, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#define AK_DONT_REPLACE_STD
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#include <LibUnicode/ICU.h>
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#include <LibUnicode/Locale.h>
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#include <LibUnicode/NumberFormat.h>
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#include <LibUnicode/PartitionRange.h>
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#include <LibUnicode/RelativeTimeFormat.h>
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#include <unicode/decimfmt.h>
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#include <unicode/numfmt.h>
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#include <unicode/reldatefmt.h>
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namespace Unicode {
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Optional<TimeUnit> time_unit_from_string(StringView time_unit)
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{
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if (time_unit == "second"sv)
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return TimeUnit::Second;
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if (time_unit == "minute"sv)
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return TimeUnit::Minute;
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if (time_unit == "hour"sv)
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return TimeUnit::Hour;
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if (time_unit == "day"sv)
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return TimeUnit::Day;
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if (time_unit == "week"sv)
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return TimeUnit::Week;
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if (time_unit == "month"sv)
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return TimeUnit::Month;
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if (time_unit == "quarter"sv)
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return TimeUnit::Quarter;
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if (time_unit == "year"sv)
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return TimeUnit::Year;
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return {};
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}
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StringView time_unit_to_string(TimeUnit time_unit)
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{
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switch (time_unit) {
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case TimeUnit::Second:
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return "second"sv;
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case TimeUnit::Minute:
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return "minute"sv;
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case TimeUnit::Hour:
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return "hour"sv;
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case TimeUnit::Day:
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return "day"sv;
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case TimeUnit::Week:
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return "week"sv;
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case TimeUnit::Month:
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return "month"sv;
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case TimeUnit::Quarter:
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return "quarter"sv;
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case TimeUnit::Year:
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return "year"sv;
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}
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VERIFY_NOT_REACHED();
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}
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static constexpr URelativeDateTimeUnit icu_time_unit(TimeUnit unit)
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{
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switch (unit) {
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case TimeUnit::Second:
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return URelativeDateTimeUnit::UDAT_REL_UNIT_SECOND;
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case TimeUnit::Minute:
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return URelativeDateTimeUnit::UDAT_REL_UNIT_MINUTE;
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case TimeUnit::Hour:
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return URelativeDateTimeUnit::UDAT_REL_UNIT_HOUR;
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case TimeUnit::Day:
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return URelativeDateTimeUnit::UDAT_REL_UNIT_DAY;
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case TimeUnit::Week:
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return URelativeDateTimeUnit::UDAT_REL_UNIT_WEEK;
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case TimeUnit::Month:
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return URelativeDateTimeUnit::UDAT_REL_UNIT_MONTH;
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case TimeUnit::Quarter:
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return URelativeDateTimeUnit::UDAT_REL_UNIT_QUARTER;
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case TimeUnit::Year:
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return URelativeDateTimeUnit::UDAT_REL_UNIT_YEAR;
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}
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VERIFY_NOT_REACHED();
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}
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NumericDisplay numeric_display_from_string(StringView numeric_display)
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{
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if (numeric_display == "always"sv)
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return NumericDisplay::Always;
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if (numeric_display == "auto"sv)
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return NumericDisplay::Auto;
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VERIFY_NOT_REACHED();
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}
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StringView numeric_display_to_string(NumericDisplay numeric_display)
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{
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switch (numeric_display) {
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case NumericDisplay::Always:
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return "always"sv;
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case NumericDisplay::Auto:
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return "auto"sv;
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}
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VERIFY_NOT_REACHED();
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}
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static constexpr UDateRelativeDateTimeFormatterStyle icu_relative_date_time_style(Style unit_display)
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{
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switch (unit_display) {
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case Style::Long:
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return UDAT_STYLE_LONG;
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case Style::Short:
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return UDAT_STYLE_SHORT;
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case Style::Narrow:
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return UDAT_STYLE_NARROW;
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}
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VERIFY_NOT_REACHED();
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}
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static constexpr StringView icu_relative_time_format_field_to_string(i32 field)
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{
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switch (field) {
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case PartitionRange::LITERAL_FIELD:
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return "literal"sv;
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case UNUM_INTEGER_FIELD:
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return "integer"sv;
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case UNUM_FRACTION_FIELD:
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return "fraction"sv;
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case UNUM_DECIMAL_SEPARATOR_FIELD:
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return "decimal"sv;
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case UNUM_GROUPING_SEPARATOR_FIELD:
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return "group"sv;
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}
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VERIFY_NOT_REACHED();
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}
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class RelativeTimeFormatImpl : public RelativeTimeFormat {
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public:
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explicit RelativeTimeFormatImpl(NonnullOwnPtr<icu::RelativeDateTimeFormatter> formatter)
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: m_formatter(move(formatter))
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{
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}
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virtual ~RelativeTimeFormatImpl() override = default;
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virtual String format(double time, TimeUnit unit, NumericDisplay numeric_display) const override
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{
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UErrorCode status = U_ZERO_ERROR;
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auto formatted = format_impl(time, unit, numeric_display);
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auto formatted_time = formatted->toTempString(status);
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if (icu_failure(status))
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return {};
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return icu_string_to_string(formatted_time);
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}
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virtual Vector<Partition> format_to_parts(double time, TimeUnit unit, NumericDisplay numeric_display) const override
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{
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UErrorCode status = U_ZERO_ERROR;
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auto formatted = format_impl(time, unit, numeric_display);
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auto unit_string = time_unit_to_string(unit);
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auto formatted_time = formatted->toTempString(status);
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if (icu_failure(status))
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return {};
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Vector<Partition> result;
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Vector<PartitionRange> separators;
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auto create_partition = [&](i32 field, i32 begin, i32 end, bool is_unit) {
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Partition partition;
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partition.type = icu_relative_time_format_field_to_string(field);
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partition.value = icu_string_to_string(formatted_time.tempSubStringBetween(begin, end));
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if (is_unit)
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partition.unit = unit_string;
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result.append(move(partition));
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};
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icu::ConstrainedFieldPosition position;
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position.constrainCategory(UFIELD_CATEGORY_NUMBER);
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i32 previous_end_index = 0;
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while (static_cast<bool>(formatted->nextPosition(position, status)) && icu_success(status)) {
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if (position.getField() == UNUM_GROUPING_SEPARATOR_FIELD) {
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separators.empend(position.getField(), position.getStart(), position.getLimit());
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continue;
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}
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if (previous_end_index < position.getStart())
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create_partition(PartitionRange::LITERAL_FIELD, previous_end_index, position.getStart(), false);
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auto start = position.getStart();
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if (position.getField() == UNUM_INTEGER_FIELD) {
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for (auto const& separator : separators) {
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if (start >= separator.start)
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continue;
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create_partition(position.getField(), start, separator.start, true);
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create_partition(separator.field, separator.start, separator.end, true);
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start = separator.end;
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break;
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}
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}
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create_partition(position.getField(), start, position.getLimit(), true);
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previous_end_index = position.getLimit();
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}
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if (previous_end_index < formatted_time.length())
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create_partition(PartitionRange::LITERAL_FIELD, previous_end_index, formatted_time.length(), false);
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return result;
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}
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private:
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Optional<icu::FormattedRelativeDateTime> format_impl(double time, TimeUnit unit, NumericDisplay numeric_display) const
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{
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UErrorCode status = U_ZERO_ERROR;
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auto formatted = numeric_display == NumericDisplay::Always
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? m_formatter->formatNumericToValue(time, icu_time_unit(unit), status)
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: m_formatter->formatToValue(time, icu_time_unit(unit), status);
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if (icu_failure(status))
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return {};
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return formatted;
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}
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NonnullOwnPtr<icu::RelativeDateTimeFormatter> m_formatter;
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};
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NonnullOwnPtr<RelativeTimeFormat> RelativeTimeFormat::create(StringView locale, Style style)
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{
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UErrorCode status = U_ZERO_ERROR;
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auto locale_data = LocaleData::for_locale(locale);
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VERIFY(locale_data.has_value());
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auto* number_formatter = icu::NumberFormat::createInstance(locale_data->locale(), UNUM_DECIMAL, status);
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VERIFY(locale_data.has_value());
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if (number_formatter->getDynamicClassID() == icu::DecimalFormat::getStaticClassID())
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static_cast<icu::DecimalFormat&>(*number_formatter).setMinimumGroupingDigits(UNUM_MINIMUM_GROUPING_DIGITS_AUTO);
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auto formatter = make<icu::RelativeDateTimeFormatter>(locale_data->locale(), number_formatter, icu_relative_date_time_style(style), UDISPCTX_CAPITALIZATION_NONE, status);
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VERIFY(icu_success(status));
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return make<RelativeTimeFormatImpl>(move(formatter));
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}
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}
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