The rule on u;.0 is that the interval must start at a valid index, OR
one past the last valid index IF the length is 0.
I don't think the use of ];.0 as an alternative to {. has ever been
considered.
Your suggestion is reasonable and I will think about it. If you put an
entry into https://code.jsoftware.com/wiki/System/Interpreter/Requests
that will ensure I don't forget.
(I have recently fixed a couple of sparse errors you reported earlier).
hhr
On 12/29/2018 9:02 PM, Igor Zhuravlov wrote:
A Cut (;.) is a convenient alternative to Take ({.) when there is a need to
ignore overtake:
4 {. i. 3
0 1 2 0
4 ];.0 i. 3
0 1 2
But is Cut's behavior consistent?:
2 ];.0 i. 2
0 1 NB. ok
2 ];.0 i. 1
0 NB. ok
2 ];.0 i. 0
|index error
| 2 ];.0 i.0
Shouldn't result be an empty list instead of error? However, the following
works:
0 ];.0 i. 0
NB. empty list, ok
--
Regards,
Igor
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