ladybird/AK/Utf32View.cpp
Timothy Flynn 832e9b8302 AK: Prepare Utf32View for use within templated LibGfx contexts
Forward declare its iterator and add a peek() method analagous to
Utf8CodePointIterator::peek().
2023-02-22 10:14:36 +01:00

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/*
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/StringBuilder.h>
#include <AK/Utf32View.h>
namespace AK {
Optional<u32> Utf32CodePointIterator::peek(size_t offset) const
{
if (offset == 0) {
if (this->done())
return {};
return this->operator*();
}
auto new_iterator = *this;
for (size_t index = 0; index < offset; ++index) {
++new_iterator;
if (new_iterator.done())
return {};
}
return *new_iterator;
}
ErrorOr<void> Formatter<Utf32View>::format(FormatBuilder& builder, Utf32View const& string)
{
return builder.builder().try_append(string);
}
}