Is there a way to “append” UTF-8 data to a `String`?

Using Swift
1

title says it all. i’m looking for a way to call String.init(decoding:as:) “on-the-fly” in order to accumulate UTF-8 data into the existing String buffer, instead of having to create a new String and re-copy it into the accumulator String.

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2

Unfortunately, currently there is not. It would be really, really great to add, though.

For me, this was one of the deciding factors that led to WebURL storing its data in a ManagedBuffer. It would have been great to have literally free URL -> String conversion, but it would mean only manipulating strings at the character or unicode scalar level, and that's just not sufficient.

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