mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-05 22:52:22 +02:00
8b8136b480
Keep the primitive string that segment() creates alongside the UTF-16 buffer used by LibUnicode. Segment data objects can then return lazy Substring instances for "segment" and reuse the original PrimitiveString for "input" instead of copying both strings. Add a rope-backed UTF-16 segmenter test that exercises both containing() and iterator results.
55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2022, Idan Horowitz <idan.horowitz@serenityos.org>
|
|
* Copyright (c) 2023-2025, Tim Flynn <trflynn89@ladybird.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/String.h>
|
|
#include <LibJS/Runtime/Intl/IntlObject.h>
|
|
#include <LibUnicode/Segmenter.h>
|
|
|
|
namespace JS::Intl {
|
|
|
|
class Segmenter final : public IntlObject {
|
|
JS_OBJECT(Segmenter, IntlObject);
|
|
GC_DECLARE_ALLOCATOR(Segmenter);
|
|
|
|
public:
|
|
virtual ~Segmenter() override = default;
|
|
|
|
virtual ReadonlySpan<StringView> relevant_extension_keys() const override;
|
|
virtual ReadonlySpan<ResolutionOptionDescriptor> resolution_option_descriptors(VM&) const override;
|
|
|
|
String const& locale() const { return m_locale; }
|
|
void set_locale(String locale) { m_locale = move(locale); }
|
|
|
|
Unicode::SegmenterGranularity segmenter_granularity() const { return m_segmenter_granularity; }
|
|
void set_segmenter_granularity(StringView segmenter_granularity) { m_segmenter_granularity = Unicode::segmenter_granularity_from_string(segmenter_granularity); }
|
|
StringView segmenter_granularity_string() const { return Unicode::segmenter_granularity_to_string(m_segmenter_granularity); }
|
|
|
|
Unicode::Segmenter const& segmenter() const { return *m_segmenter; }
|
|
void set_segmenter(NonnullOwnPtr<Unicode::Segmenter> segmenter) { m_segmenter = move(segmenter); }
|
|
|
|
private:
|
|
explicit Segmenter(Object& prototype);
|
|
|
|
String m_locale; // [[Locale]]
|
|
Unicode::SegmenterGranularity m_segmenter_granularity { Unicode::SegmenterGranularity::Grapheme }; // [[SegmenterGranularity]]
|
|
|
|
// Non-standard. Stores the ICU segmenter for the Intl object's segmentation options.
|
|
OwnPtr<Unicode::Segmenter> m_segmenter;
|
|
};
|
|
|
|
ThrowCompletionOr<GC::Ref<Object>> create_segment_data_object(VM&, Unicode::Segmenter const&, PrimitiveString const&, Utf16View const&, size_t start_index, size_t end_index);
|
|
|
|
enum class Direction {
|
|
Before,
|
|
After,
|
|
};
|
|
size_t find_boundary(Unicode::Segmenter&, Utf16View const&, size_t start_index, Direction);
|
|
|
|
}
|