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LibWeb: Implement text-transform: capitalize

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This commit is contained in:
Cr4xy
2023-09-29 12:32:15 +02:00
committed by Tim Flynn
parent 9f7cfb1394
commit bbfe0d3a82
7 changed files with 27 additions and 9 deletions
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13
Userland/Libraries/LibUnicode/UnicodeUtils.cpp
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@@ -266,7 +266,7 @@ ErrorOr<void> build_uppercase_string([[maybe_unused]] Utf8View code_points, [[ma
}
// https://www.unicode.org/versions/Unicode15.0.0/ch03.pdf#G34078
ErrorOr<void> build_titlecase_string([[maybe_unused]] Utf8View code_points, [[maybe_unused]] StringBuilder& builder, [[maybe_unused]] Optional<StringView> const& locale)
ErrorOr<void> build_titlecase_string([[maybe_unused]] Utf8View code_points, [[maybe_unused]] StringBuilder& builder, [[maybe_unused]] Optional<StringView> const& locale, TrailingCodePointTransformation trailing_code_point_transformation)
{
#if ENABLE_UNICODE_DATA
// toTitlecase(X): Find the word boundaries in X according to Unicode Standard Annex #29,
@@ -317,8 +317,15 @@ ErrorOr<void> build_titlecase_string([[maybe_unused]] Utf8View code_points, [[ma
boundary = code_point_offset + code_point_length;
}
auto substring_to_lowercase = code_points.substring_view(boundary, *next_boundary - boundary);
TRY(build_lowercase_string(substring_to_lowercase, builder, locale));
auto remaining_code_points = code_points.substring_view(boundary, *next_boundary - boundary);
switch (trailing_code_point_transformation) {
case TrailingCodePointTransformation::Lowercase:
TRY(build_lowercase_string(remaining_code_points, builder, locale));
break;
case TrailingCodePointTransformation::PreserveExisting:
TRY(builder.try_append(remaining_code_points.as_string()));
break;
}
boundary = *next_boundary;
}