On 1/25/21 12:53 PM, Greg Wooledge wrote:
On Mon, Jan 25, 2021 at 12:13:25PM -0500, Chet Ramey wrote:
This is good advice. If the double-quoting the @K transformation performs
is not what you need, use the @Q transformation to get something closer.
Those don't do the same thing, though.
Yes, you'll have to to use something like "${!aa[@]}" to get the array keys
and either serialize assignment or construct a new compound assignment.
But my point is the double-quoting (or $'...' quoting) the @K
transformation performs should be good enough for most common uses, and if
you need something else you'll have to do some work.
I must say that the way @K works is surprising. I would have expected
it to expand to a list of multiple strings (the way "$@" does, and without
the internal quoting). I guess it's designed to support the new
name=( key1 value1 key2 value2 ...) syntax, which I haven't used yet,
so I don't know where all the sharp edges are.
The analog is the @A transformation, which also expands to a single string.
It should be quoted enough to survive `eval', unless you're dogmatic about
not using that.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/
