Re: Lack of documentation about mapfile callback

[Chet Ramey]

On 2/8/20 9:04 PM, Léa Gris wrote:
> man bash.1
>> When callback is evaluated, it is supplied the index of the next 
>> array element to be assigned and the line to be assigned to that 
>> element as additional arguments. callback is evaluated after the
>> line is read but before the array element is assigned.
> 
> I can not find real-life implementation example of the mapfile callback
> that fit the implied scenario of this behavior of invoking the callback
> before the last array entry is assigned.

The mapfile builtin originally came in to support the bash debugger; I
assume that is a good enough example.

-- 
``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/