Re: Associative array keys are not reusable in (( command

[Greg Wooledge]

> > If you are reluctant to change semantics, how about a new parameter
> > transformation to quote values using `sh_single_quote'?
> 
> Why, when @Q already exists?

It's often the case that the strings generated by bash are being
fed to some other shell, where $'...' doesn't work.  Granted, you can
always do "'${myvar//$q/$q\\$q$q}'" (where q=\').

If the sh single quoting also helps you use associative array elements
inside a math context, then that would be a second reason.  But at this
point I can't even *guess* whether it's safe to use sh-single-quoted
associative array keys inside a math context.  I tried one with a
command substitution and a newline inside it, and it seemed to work, but
that doesn't mean it's *safe*.