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Originally, it was convenient to store the parsed Unicode locale data as views into the original string being parsed. But to implement locale aliases will require mutating the data that was parsed. To prepare for that, store the parsed data as proper strings.
78 lines
2 KiB
C++
78 lines
2 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Optional.h>
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#include <AK/String.h>
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#include <AK/StringView.h>
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#include <AK/Variant.h>
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#include <AK/Vector.h>
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#include <LibUnicode/Forward.h>
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namespace Unicode {
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struct LanguageID {
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bool is_root { false };
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Optional<String> language {};
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Optional<String> script {};
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Optional<String> region {};
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Vector<String> variants {};
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};
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struct Keyword {
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String key {};
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Vector<String> types {};
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};
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struct LocaleExtension {
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Vector<String> attributes {};
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Vector<Keyword> keywords {};
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};
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struct TransformedField {
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String key;
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Vector<String> values {};
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};
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struct TransformedExtension {
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Optional<LanguageID> language {};
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Vector<TransformedField> fields {};
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};
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struct OtherExtension {
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char key {};
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Vector<String> values {};
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};
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using Extension = Variant<LocaleExtension, TransformedExtension, OtherExtension>;
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struct LocaleID {
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LanguageID language_id {};
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Vector<Extension> extensions {};
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Vector<String> private_use_extensions {};
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};
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// Note: These methods only verify that the provided strings match the EBNF grammar of the
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// Unicode identifier subtag (i.e. no validation is done that the tags actually exist).
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bool is_unicode_language_subtag(StringView);
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bool is_unicode_script_subtag(StringView);
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bool is_unicode_region_subtag(StringView);
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bool is_unicode_variant_subtag(StringView);
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Optional<LanguageID> parse_unicode_language_id(StringView);
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Optional<LocaleID> parse_unicode_locale_id(StringView);
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Optional<String> canonicalize_unicode_locale_id(LocaleID&);
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String const& default_locale();
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bool is_locale_available(StringView locale);
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Optional<StringView> get_locale_language_mapping(StringView locale, StringView language);
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Optional<StringView> get_locale_territory_mapping(StringView locale, StringView territory);
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Optional<StringView> get_locale_script_mapping(StringView locale, StringView script);
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Optional<StringView> get_locale_currency_mapping(StringView locale, StringView currency);
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}
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