[R6RS] Unicode scalar value escape sequences

[Manuel Serrano]

> While we're on the subject of strings, does anyone have a strong
> opinion on mutability of strings.  Would it improve the language to
> have immutable strings?  Would it improve the language to have only
> immutable strings?  (I'm not talking about strings in literals, which
> are currently immutable)
I don't know if I have a strong opinion. I'm mainly wondering what is there
to gain with immutable strings? Allowing string mutations enables, sometime,
more efficient implementations. Isn't important?

-- 
Manuel