Re: ${var@A}; hypothetical, related parameter transformations

[Chet Ramey]

On 3/19/24 8:56 PM, Zachary Santer wrote:

> So I can get a couple of the things I want by manipulating what I get out 
> of ${var@A} with fairly straightforward parameter expansions. If I needed a 
> declare command and wasn't sure if I would get one, I haven't found a way 
> to expand that to something that is guaranteed to be a declare command 
> maintaining attribute settings. I think you're stuck using an if block at 
> that point.

That expansion will produce a declare command if the variable has any
attributes, since it needs one to reproduce them. If the variable has a
value, but no attributes, you'll get an assignment  statement. If there
are no attributes and no value, you get nothing.

--
``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/