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AK: Add a method to compute UTF-16 length from a UTF-8 string

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Timothy Flynn 2024-07-30 06:19:56 -04:00 • committed by Tim Flynn
commit 7a17c654d2
Notes: github-actions[bot] 2024-07-31 09:56:36 +00:00
3 changed files with 19 additions and 0 deletions
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9
AK/Utf16View.cpp
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@ -129,6 +129,15 @@ ErrorOr<void> code_point_to_utf16(Utf16Data& string, u32 code_point, Endianness
return {};
}
size_t utf16_code_unit_length_from_utf8(StringView string)
{
// FIXME: The CPU-specific implementations behave differently on null inputs. We treat null views as an empty string.
if (string.is_empty())
return 0;
return simdutf::utf16_length_from_utf8(string.characters_without_null_termination(), string.length());
}
bool Utf16View::is_high_surrogate(u16 code_unit)
{
return (code_unit >= high_surrogate_min) && (code_unit <= high_surrogate_max);