System Function CR
Monadic Function
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| R is a character scalar or vector. | ||||
| Z is a character matrix with as many rows as there are lines in the function (including the header), and as many columns as the longest line (including the header). |
This monadic function behaves the same as described in the Extended APL Standard, except it also displays the canonical representation of an assigned function or operator.
For example,
f←,∘⍋∘⍋∘,
⍴⎕←⎕cr 'f'
,∘⍋∘⍋∘,
1 7
If the assigned function references an unnamed value which is not a simple scalar, the representation shows a marker in that spot.
For example,
f←'abcdefg'∘⎕cr
⎕cr 'f'
…∘⎕cr
f←⎕cr
⎕cr 'f'
f
f 'f'
f
Dyadic Function
|
||||
| R is a character scalar or vector. | ||||
| L is an integer scalar whose value is one of ¯2, ¯1, 1, or 2. |
If 2=|L, then Z is a character matrix with as many rows as there are lines in the function (including the header), and as many columns as the longest line (including the header).
if 1=|L, then Z is a vector of character vectors with as many elements in Z as there are lines in the function (including the header), and each element of Z is a character vector representation of the corresponding line (or header) in the function.
If L>0, then R is assumed to name a user-defined function or operator.
If L<0, then R is assumed to name a magic function.
In both cases, the canonical representation of that function is returned, as per the above two rules.
For example,
¯2 ⎕cr '#MonIota'
Z←#MonIota R
Z←⊃∘.,/⍳¨R
When this was written, the existing magic functions were named #MonIota, #DydIota, #MonDnShoe, #DydTilde, #MonRank, #DydRank, #Conform, #MonFMT, and #Box.
