Is there any open source implementation of APL?

Question

I am aware of J & K; but neither are open source.

I'm also aware of A+, but that seems outdated.

Is there any decent open source implementation of APL?

If so, where? If not, why?

Possibly a dup of http://stackoverflow.com/questions/3887521/apl-versus-a-versus-j-versus-k — pjz, Jul 30 '13 at 19:20
GNU APL was released a week or two ago: https://www.gnu.org/software/apl/ — ngn, Oct 07 '13 at 21:02

score 6 · Answer 1 · answered Jun 10 '11 at 11:21

I'm experimenting with an APL interpreter in JavaScript (http://github.com/ngn/apl), runs on node.js or in a browser. It can do basic stuff, like compute a generation of Conway's game of life, but it's early to tell if it can turn out into a decent implementation.

score 5 · Answer 2 · answered Feb 18 '10 at 10:36

5

You might try NARS2000 (at http://www.nars2000.org/). I've not tried it myself so can't comment on how it compares to the commercial interpreters.

answered Feb 18 '10 at 10:36

Duncan

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score 5 · Answer 3 · answered Jun 04 '11 at 15:30

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Kona is an open-source ascii based APL, inspired from K.

answered Jun 04 '11 at 15:30

jdeseno

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score 5 · Answer 4 · answered Jun 04 '11 at 22:25

5

J7 was recently released under the GPL.

answered Jun 04 '11 at 22:25

sverre

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score 3 · Answer 5 · edited Sep 27 '12 at 22:43

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Have you tried OpenAPL?

It is open source.

edited Sep 27 '12 at 22:43

warren

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answered May 02 '10 at 14:36

estanford

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score 1 · Answer 6 · answered Feb 02 '13 at 15:35

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I have just discovered a Javascript implementation of APL here:

https://github.com/ngn/apl

answered Feb 02 '13 at 15:35

Phil

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see the previous answer here by ngn for more.... – nealmcb Mar 12 '13 at 19:50

score 1 · Answer 7 · answered Jan 25 '10 at 19:56

1

There's J.

answered Jan 25 '10 at 19:56

Steve Emmerson

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You can buy the source at crazy rates, at which point it is open to you. – JUST MY correct OPINION May 02 '10 at 14:46
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Yup. Open Source doesn't necessarily mean free. – Steve Emmerson May 02 '10 at 18:24
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"open-source software must comply with the following criteria: 1. Free Redistribution" http://opensource.org/docs/osd – danio Oct 07 '10 at 13:02
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OSI's definition of "open source software" isn't universally accepted. – Steve Emmerson Nov 28 '11 at 21:49
Just a year after this answer, J was released under GPL v3! https://github.com/jsoftware/jsource – DaveGauer Sep 29 '21 at 21:48

Is there any open source implementation of APL?

7 Answers7

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