mirror of
https://github.com/RGBCube/serenity
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21c4922ac0
Add a method to remove an extension type from the locale's extension set and methods to convert a locale and language to a string without canonicalization. Each of these will be used by LibJS.
102 lines
2.9 KiB
C++
102 lines
2.9 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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String to_string() const;
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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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String to_string() const;
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template<typename ExtensionType>
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void remove_extension_type()
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{
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auto tmp_extensions = move(extensions);
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for (auto& extension : tmp_extensions) {
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if (!extension.has<ExtensionType>())
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extensions.append(move(extension));
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}
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}
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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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bool is_type_identifier(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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Optional<StringView> resolve_language_alias(StringView language);
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Optional<StringView> resolve_territory_alias(StringView territory);
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Optional<StringView> resolve_script_tag_alias(StringView script_tag);
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Optional<StringView> resolve_variant_alias(StringView variant);
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Optional<StringView> resolve_subdivision_alias(StringView subdivision);
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String resolve_most_likely_territory(LanguageID const& language_id, StringView territory_alias);
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}
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