I had thought I'd written insert so it would accept list
arguments for insertion. I did not.
Here's a version which works like I had originally
intended:
insert=:1 :0
:
b=.1#~1 j.m e.~i.#y
((-.b)expand x)+b expand y
)
For example, if I wanted to insert a 4 after both the
second position in a list (like the original example)
and after the third position in a list (like the original
requirement), I could use:
4 4 (1 2 insert) 2 3 5 6
2 3 4 5 4 6
Note that the index 0 would indicate the first position
(this is just the usual distinction be cardinal and ordinal
numbers).
That said, if I want this to work with any kind of argument
(not just numeric), I could use:
ins=:1 :0
:
b=.1#~1 j.m e.~i.#y
x (I.-.b)} b expand y
)
' ' 3 5 6 ins 'thisisatest'
this is a test
--
Raul
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