6070df40f3
The only user is currently String::equals_ignoring_case, but LibRegex will need to do the same case-folded comparison with UTF-32 data. As it turns out, the comparison works with all Unicode view types without much fuss.
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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* Copyright (c) 2023, 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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#include <AK/String.h>
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#include <AK/StringBuilder.h>
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#include <AK/Utf8View.h>
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#include <LibUnicode/CharacterTypes.h>
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#include <LibUnicode/UnicodeUtils.h>
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// This file contains definitions of AK::String methods which require UCD data.
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namespace AK {
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ErrorOr<String> String::to_lowercase(Optional<StringView> const& locale) const
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{
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StringBuilder builder;
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TRY(Unicode::Detail::build_lowercase_string(code_points(), builder, locale));
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return builder.to_string();
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}
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ErrorOr<String> String::to_uppercase(Optional<StringView> const& locale) const
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{
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StringBuilder builder;
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TRY(Unicode::Detail::build_uppercase_string(code_points(), builder, locale));
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return builder.to_string();
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}
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ErrorOr<String> String::to_titlecase(Optional<StringView> const& locale) const
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{
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StringBuilder builder;
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TRY(Unicode::Detail::build_titlecase_string(code_points(), builder, locale, Unicode::TrailingCodePointTransformation::Lowercase));
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return builder.to_string();
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}
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ErrorOr<String> String::to_casefold() const
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{
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StringBuilder builder;
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TRY(Unicode::Detail::build_casefold_string(code_points(), builder));
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return builder.to_string();
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}
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bool String::equals_ignoring_case(String const& other) const
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{
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return Unicode::equals_ignoring_case(code_points(), other.code_points());
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}
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}
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