Re: Bash-5.2 Release available

[Corey Hickey]

On 2022-10-31 08:25, Chet Ramey wrote:
> On 10/28/22 9:22 PM, Corey Hickey wrote:
> > On 2022-09-26 12:33, Chet Ramey wrote:
> > > There are a few incompatible changes between bash-5.1 and bash-5.2. Here-
> > > documents and here-strings use temporary files if the shell compatibility
> > > level is 50 or lower. The `unset' builtin in bash-5.2 treats array
> > > subscripts
> > > `@' and `*' differently than previous versions, and differently depending on
> > > whether the array is indexed or associative. Bash-5.2 attempts to prevent
> > > double-expansion of array subscripts under certain circumstances, especially
> > > arithmetic evaluation, by acting as if the `assoc_expand_once' shell option
> > > were set. Set the compatibility level appropriately to revert to previous
> > > behavior; details are in the file COMPAT.
> >
> > I think I encountered the array subscript change, and I'm having some trouble.
>
> Thanks for the report. I left the arithmetic evaluation of associative
> arrays using `@' and `*' as keys alone for backwards compatibility, but
> it needs to move up with the rest of the compatibility level code. Here's
> a patch that does that.


Thanks. I tested the patch as applied on top of git a99d905216cc0 and it
works the way I would expect.

$ ./bash -c 'declare -A assoc ; var=@ ; assoc[$var]=1 ; echo "$((1 + 
assoc[$var]))"'
2

-Corey