Re: auto-quoting inside braces in arguments

[Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>]

On Thu, Feb 18, 2021 at 9:35 AM Daniel Shahaf <d.s@xxxxxxxxxxxxxxxxxx> wrote:
>
> Vincent Lefevre wrote on Thu, 18 Feb 2021 13:40 +00:00:
> > Is there a way to get auto-quoting inside braces in arguments?
>
> Proof of concept:
>
> f() {
>   local l=\{ r=\}
>   CURSOR=${BUFFER[(i)$l]} MARK=${BUFFER[(i)$r]}
>   (( -- CURSOR ))
>   zle quote-region
> }

It needs to be a bit more complicated than that, because you first
have to be sure that the braces are not already quoted and do not form
a valid comma-separated (or ".." range) brace expression.  Also,
should anything special happen if there is a valid brace expression
inside the invalid brace pair?   Is this single- or double-quote
equivalent, or something new?

As an aside to the latter, it might be nice if providing a
prefix-argument to quote-region caused it to use double instead of
single quotes.