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https://github.com/RGBCube/serenity
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7760c00714
...and make it spec compliant by considering all ASCII whitespace, greatly simplifying it in the process :^)
32 lines
996 B
C++
32 lines
996 B
C++
/*
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* Copyright (c) 2022, Linus Groh <linusg@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/Utf8View.h>
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#include <LibWeb/Infra/CharacterTypes.h>
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#include <LibWeb/Infra/Strings.h>
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namespace Web::Infra {
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// https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
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String strip_and_collapse_whitespace(StringView string)
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{
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// Replace any sequence of one or more consecutive code points that are ASCII whitespace in the string with a single U+0020 SPACE code point.
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StringBuilder builder;
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for (auto code_point : Utf8View { string }) {
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if (Infra::is_ascii_whitespace(code_point)) {
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if (!builder.string_view().ends_with(' '))
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builder.append(' ');
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continue;
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}
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builder.append_code_point(code_point);
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}
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// ...and then remove any leading and trailing ASCII whitespace from that string.
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return builder.string_view().trim(Infra::ASCII_WHITESPACE);
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}
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}
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