On 29/03/13 13:12, Brendan Jurd wrote:
On 28 March 2013 20:34, Dean Rasheed <dean.a.rash...@gmail.com> wrote:
Is the patch also going to allow empty arrays in higher dimensions
where not just the last dimension is empty?
It doesn't allow that at present.
It seems as though, if
it's allowing 1-by-0 arrays like '{{}}' and '[4:4][8:7]={{}}', it
should also allow 0-by-0 arrays like '[4:3][8:7]={}', and 0-by-3
arrays like '[4:3][11:13]={}'.
I think the array literal parser would reject this on the grounds that
the brace structure doesn't match the dimension specifiers. You could
modify that check to respect zero length in dimensions other than the
innermost one, but it's hard to say whether it would be worth the
effort.
It might be instructive to hear from somebody who does (or intends to)
use multidim arrays for some practical purpose, but I don't even know
whether such a person exists within earshot of this list.
Cheers,
BJ
Multiple dimension arrays. 'might' be something I may need, or at least
usefully use in my current project.
I am not ready to do the database design to that detail yet.
However, I know I will need to do 'clever'(TM) things with multiple
images areas on images, and possibly group several images together (and
still access their individual image areas). So potentially arrays of
dimension 2 or greater may be useful. Certainly, some images will not
have any image areas defined, some arrays might be empty.
Cheers,
Gavin
