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LibWeb: Add to_ascii_upper_case() from the Infra spec

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https://infra.spec.whatwg.org/#ascii-uppercase
This commit is contained in:
Kenneth Myhra 2023-02-25 23:47:54 +01:00 • committed by Linus Groh
parent 2c1e15bd3b
commit 31a9bd2bfd
2 changed files with 15 additions and 0 deletions
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14
Userland/Libraries/LibWeb/Infra/Strings.cpp
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@ -120,4 +120,18 @@ ErrorOr<String> to_ascii_lower_case(StringView string)
return string_builder.to_string();
}
// https://infra.spec.whatwg.org/#ascii-uppercase
ErrorOr<String> to_ascii_upper_case(StringView string)
{
// To ASCII uppercase a string, replace all ASCII lower alphas in the string with their
// corresponding code point in ASCII upper alpha.
StringBuilder string_builder;
auto utf8_view = Utf8View { string };
for (u32 code_point : utf8_view) {
code_point = to_ascii_uppercase(code_point);
TRY(string_builder.try_append(code_point));
}
return string_builder.to_string();
}
}