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/*
* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <AK/String.h>
#include <AK/StringView.h>
#include <AK/Vector.h>
#include <LibUnicode/Forward.h>
namespace Unicode {
struct LanguageID {
bool is_root { false };
Optional<StringView> language {};
Optional<StringView> script {};
Optional<StringView> region {};
Vector<StringView> variants {};
};
struct LocaleID {
LanguageID language_id {};
};
// Note: These methods only verify that the provided strings match the EBNF grammar of the
// Unicode identifier subtag (i.e. no validation is done that the tags actually exist).
bool is_unicode_language_subtag(StringView);
bool is_unicode_script_subtag(StringView);
bool is_unicode_region_subtag(StringView);
bool is_unicode_variant_subtag(StringView);
Optional<LanguageID> parse_unicode_language_id(StringView);
Optional<LocaleID> parse_unicode_locale_id(StringView);
Optional<String> canonicalize_unicode_locale_id(LocaleID&);
}
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