Consider describing how K treats whitespace

[hmkemppainen]

I was just reading about ': in more adverbs:

x ': y Window

Symbol: ':

Args: int ': array

Note how the syntax is written with a space separating the function/adverb from its args. I didn't pay much attention to this in the past, since I assumed it's just a stylistic thing and that the interpreter wouldn't care about it either way.

This assumption seems right for functions as well as function-adverb pairs where there is no space between the function and adverb:

 1-!5
1 0 -1 -2 -3

 1 - !5
1 0 -1 -2 -3

 1 2 3!'3 4 5
0 0 2

 1 2 3 !' 3 4 5
0 0 2

Window is different. I guess syntactically 3 is supposed to take the position of a function, and I guess the interpreter would expect the adverb (if any) to follow immediately, without a space:

 3':!5
(0 1 2
 1 2 3
 2 3 4)

 3 ': !5
'nyi
 3 ': !5
   ^

Trying other adverbs with a space also yields interesting results that are difficult to interpret with the information given so far:

 -\!5
0 -1 -3 -6 -10

 - \!5
0 1 2 3 4
0 -1 -2 -3 -4

 +\!5
0 1 3 6 10

 + \!5
0 1 2 3 4
,0 1 2 3 4

 2\123
1 1 1 1 0 1 1

 2 \123
123
'rank
 
   ^

 2 \ 123
123
'rank
 2 \ 123
  ^