Seems like it works in a column-oriented (not sure if the wording is
correct here :-) way:
$ echo ${.sh.version}
Version JMP 93u+ 2012-02-29
$ typeset -a arr=( ( 1 2 3 ) ( 4 5 6 ) ( 7 8 9 ) ( 10 11 12 ) )
$ typeset -n ref=arr[0]
$ echo ${!ref[@]}
0 1 2 3
$ echo ${ref[@]}
1 4 7 10
$ ref[0]=change
$ typeset -p arr
typeset -a arr=((change 2 3) (4 5 6) (7 8 9) (10 11 12) )
$
On Thu, Mar 22, 2012 at 14:36, Clark J. Wang <[email protected]> wrote:
> For example:
>
> $ echo $KSH_VERSION
> Version JMP 93u+ 2012-02-29
> $ typeset -a arr=( ( 1 2 ) ( 3 4 5 ) )
> $ typeset -n ref=arr[1] <== no errors reported so I assume this is
> supported
> $ typeset -p ref
> typeset -n ref=arr <== ???
> $ echo ${ref[0][@]} <== but actually `ref' is not the reference to
> `arr' either
>
> $ echo ${ref[1][@]}
>
> $ echo ${ref[@]}
> 1 3
> $ echo ${!ref[@]}
> 0 1
> $
>
> With multi-dimension arrays it's very natural to define a function to
> operate on the array row by row as one often does in other languages like C.
>
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