APL mode

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⍝ Conway's game of life
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⍝ This example was inspired by the impressive demo at
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⍝ http://www.youtube.com/watch?v=a9xAKttWgP4
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⍝ Create a matrix:
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⍝     0 1 1
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⍝     1 1 0
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⍝     0 1 0
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creature ← (3 3 ⍴ ⍳ 9) ∈ 1 2 3 4 7   ⍝ Original creature from demo
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creature ← (3 3 ⍴ ⍳ 9) ∈ 1 3 6 7 8   ⍝ Glider
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⍝ Place the creature on a larger board, near the centre
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board ← ¯1 ⊖ ¯2 ⌽ 5 7 ↑ creature
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⍝ A function to move from one generation to the next
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life ← {∨/ 1 ⍵ ∧ 3 4 = ⊂+/ +⌿ 1 0 ¯1 ∘.⊖ 1 0 ¯1 ⌽¨ ⊂⍵}
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⍝ Compute n-th generation and format it as a
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⍝ character matrix
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gen ← {' #'[(life ⍣ ⍵) board]}
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⍝ Show first three generations
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(gen 1) (gen 2) (gen 3)
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Simple mode that tries to handle APL as well as it can.

It attempts to label functions/operators based upon monadic/dyadic usage (but this is far from fully fleshed out). This means there are meaningful classnames so hover states can have popups etc.

MIME types defined: text/apl (APL code)