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/*
* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Array.h>
#include <AK/StringBuilder.h>
#include <LibUnicode/DateTimeFormat.h>
#include <LibUnicode/Locale.h>
#if ENABLE_UNICODE_DATA
# include <LibUnicode/UnicodeDateTimeFormat.h>
#endif
namespace Unicode {
HourCycle hour_cycle_from_string(StringView hour_cycle)
{
if (hour_cycle == "h11"sv)
return Unicode::HourCycle::H11;
else if (hour_cycle == "h12"sv)
return Unicode::HourCycle::H12;
else if (hour_cycle == "h23"sv)
return Unicode::HourCycle::H23;
else if (hour_cycle == "h24"sv)
return Unicode::HourCycle::H24;
VERIFY_NOT_REACHED();
}
StringView hour_cycle_to_string(HourCycle hour_cycle)
{
switch (hour_cycle) {
case HourCycle::H11:
return "h11"sv;
case HourCycle::H12:
return "h12"sv;
case HourCycle::H23:
return "h23"sv;
case HourCycle::H24:
return "h24"sv;
default:
VERIFY_NOT_REACHED();
}
}
CalendarPatternStyle calendar_pattern_style_from_string(StringView style)
{
if (style == "narrow"sv)
return CalendarPatternStyle::Narrow;
if (style == "short"sv)
return CalendarPatternStyle::Short;
if (style == "long"sv)
return CalendarPatternStyle::Long;
if (style == "numeric"sv)
return CalendarPatternStyle::Numeric;
if (style == "2-digit"sv)
return CalendarPatternStyle::TwoDigit;
VERIFY_NOT_REACHED();
}
StringView calendar_pattern_style_to_string(CalendarPatternStyle style)
{
switch (style) {
case CalendarPatternStyle::Narrow:
return "narrow"sv;
case CalendarPatternStyle::Short:
return "short"sv;
case CalendarPatternStyle::Long:
return "long"sv;
case CalendarPatternStyle::Numeric:
return "numeric"sv;
case CalendarPatternStyle::TwoDigit:
return "2-digit"sv;
default:
VERIFY_NOT_REACHED();
}
}
// https://unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table
Vector<Unicode::HourCycle> get_regional_hour_cycles([[maybe_unused]] StringView locale)
{
#if ENABLE_UNICODE_DATA
if (auto hour_cycles = Detail::get_regional_hour_cycles(locale); !hour_cycles.is_empty())
return hour_cycles;
auto return_default_hour_cycles = []() {
auto hour_cycles = Detail::get_regional_hour_cycles("001"sv);
VERIFY(!hour_cycles.is_empty());
return hour_cycles;
};
auto language = parse_unicode_language_id(locale);
if (!language.has_value())
return return_default_hour_cycles();
if (!language->region.has_value())
language = add_likely_subtags(*language);
if (!language.has_value() || !language->region.has_value())
return return_default_hour_cycles();
if (auto hour_cycles = Detail::get_regional_hour_cycles(*language->region); !hour_cycles.is_empty())
return hour_cycles;
return return_default_hour_cycles();
#else
return {};
#endif
}
Optional<Unicode::HourCycle> get_default_regional_hour_cycle(StringView locale)
{
if (auto hour_cycles = get_regional_hour_cycles(locale); !hour_cycles.is_empty())
return hour_cycles.first();
return {};
}
String combine_skeletons(StringView first, StringView second)
{
// https://unicode.org/reports/tr35/tr35-dates.html#availableFormats_appendItems
constexpr auto field_order = Array {
"G"sv, // Era
"yYuUr"sv, // Year
"ML"sv, // Month
"dDFg"sv, // Day
"Eec"sv, // Weekday
"abB"sv, // Period
"hHKk"sv, // Hour
"m"sv, // Minute
"sSA"sv, // Second
"zZOvVXx"sv, // Zone
};
StringBuilder builder;
auto append_from_skeleton = [&](auto skeleton, auto ch) {
auto first_index = skeleton.find(ch);
if (!first_index.has_value())
return false;
auto last_index = skeleton.find_last(ch);
builder.append(skeleton.substring_view(*first_index, *last_index - *first_index + 1));
return true;
};
for (auto fields : field_order) {
for (auto ch : fields) {
if (append_from_skeleton(first, ch))
break;
if (append_from_skeleton(second, ch))
break;
}
}
return builder.build();
}
Optional<CalendarFormat> get_calendar_format([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar, [[maybe_unused]] CalendarFormatType type)
{
#if ENABLE_UNICODE_DATA
switch (type) {
case CalendarFormatType::Date:
return Detail::get_calendar_date_format(locale, calendar);
case CalendarFormatType::Time:
return Detail::get_calendar_time_format(locale, calendar);
case CalendarFormatType::DateTime:
return Detail::get_calendar_date_time_format(locale, calendar);
default:
VERIFY_NOT_REACHED();
}
#else
return {};
#endif
}
Vector<CalendarPattern> get_calendar_available_formats([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_available_formats(locale, calendar);
#else
return {};
#endif
}
Optional<Unicode::CalendarRangePattern> get_calendar_default_range_format([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_default_range_format(locale, calendar);
#else
return {};
#endif
}
Vector<Unicode::CalendarRangePattern> get_calendar_range_formats([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar, [[maybe_unused]] StringView skeleton)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_range_formats(locale, calendar, skeleton);
#else
return {};
#endif
}
Vector<Unicode::CalendarRangePattern> get_calendar_range12_formats([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar, [[maybe_unused]] StringView skeleton)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_range12_formats(locale, calendar, skeleton);
#else
return {};
#endif
}
Optional<StringView> get_calendar_era_symbol([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar, [[maybe_unused]] CalendarPatternStyle style, [[maybe_unused]] Unicode::Era value)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_era_symbol(locale, calendar, style, value);
#else
return {};
#endif
}
Optional<StringView> get_calendar_month_symbol([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar, [[maybe_unused]] CalendarPatternStyle style, [[maybe_unused]] Unicode::Month value)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_month_symbol(locale, calendar, style, value);
#else
return {};
#endif
}
Optional<StringView> get_calendar_weekday_symbol([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar, [[maybe_unused]] CalendarPatternStyle style, [[maybe_unused]] Unicode::Weekday value)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_weekday_symbol(locale, calendar, style, value);
#else
return {};
#endif
}
Optional<StringView> get_calendar_day_period_symbol([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar, [[maybe_unused]] CalendarPatternStyle style, [[maybe_unused]] Unicode::DayPeriod value)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_day_period_symbol(locale, calendar, style, value);
#else
return {};
#endif
}
Optional<StringView> get_calendar_day_period_symbol_for_hour([[maybe_unused]] StringView locale, [[maybe_unused]] StringView calendar, [[maybe_unused]] CalendarPatternStyle style, [[maybe_unused]] u8 hour)
{
#if ENABLE_UNICODE_DATA
return Detail::get_calendar_day_period_symbol_for_hour(locale, calendar, style, hour);
#else
return {};
#endif
}
Optional<StringView> get_time_zone_name([[maybe_unused]] StringView locale, [[maybe_unused]] StringView time_zone, [[maybe_unused]] CalendarPatternStyle style)
{
#if ENABLE_UNICODE_DATA
return Detail::get_time_zone_name(locale, time_zone, style);
#else
return {};
#endif
}
}
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