Re: bash tries to parse comsub in quoted PE pattern

[Chet Ramey]

On 10/17/23 5:55 PM, Emanuele Torre wrote:
> > braces.c
> >         - brace_gobbler: use extract_dollar_brace_string if we see ${ with
> >           the appropriate value of QUOTING, so we don't have to teach brace
> >           expansion more shell syntax.
> >           Report from Emanuele Torre <torreemanuele6@gmail.com>
> >         - brace_gobbler: call the word extraction functions with SX_NOALLOC
> >           so we don't have to allocate memory we're just going to free
>
> That patch fixed the bug with "${foo#'$('}", but it also broke the
> "${arr["{start..end}"]}" / "${arr["{foo,bar}"]}" patterns.

How much shell syntax do you want? You want brace expansion to detect
some issues with parameter expansion but ignore others, and detect
some expansions but not others, without supplying requirements.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/