Re: `aset` on strings, changing the size in bytes

[Richard Stallman]

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  > >    (setq s (srep s from to newsubstring))

  > Why not have aset do this under the hood?

aset, with its current specification, cannot do this
because there is no way to replace the old string (as a Lisp object)
with a new string.

Currently a string object points to a separate string text.  That enables
aset to replace the old string text with a new string text.

If we wanted to change the string representation, that might become
impossible.  That might cause problems in places that uses aset.

I propose srep because some of those places might use srep instead.

-- 
Dr Richard Stallman
President, Free Software Foundation (https://gnu.org, https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)