Re: "local -g" declaration references local var in enclosing scope

[Chet Ramey]

On 3/10/24 3:55 PM, Zachary Santer wrote:

> Relatedly, how would one set attributes on a variable declared in a
> calling function? 'readonly' and 'export' can do it for their
> respective attributes, but otherwise, I think you just can't.

You can't (you might be able to using nameref tricks I'm not motivated
enough to investigate); that's a consequence of dynamic scoping and
how `declare' works.

`readonly' and `export' just act on variables found using the usual
dynamic scooping rules. You could write loadable builtins `array',
`assoc', and `integer' to do the same for those attributes if you
desired.

--
``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/

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