Re: array subscripts act differently for integers(ie. let)

[Chet Ramey]

On 2/20/15 3:52 PM, Dan Douglas wrote:

> IMO bash is exactly correct. I don't know how this could be "fixed" in
> a way that would satisfy people without changing something very
> fundamental. If you disable the initial expansion to `(())', then
> `(($x))' wouldn't work (because arithmetic evaluation doesn't itself
> evaluate parameter expansions). However if you disabled evaluating
> parameter expansions during variable resolution (for array indexes)
> then you would be stuck with exactly the above ksh problem.

Yeah, exactly.  I could potentially avoid the double-expansion issue
by adding flags and other conditional beahvior, but I'm afraid it
would be fragile and inconsistent.  The backwards compatibility issue
would come up either way.

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