https://github.com/susisu/lazyk-js

Lazy K interpreter
https://github.com/susisu/lazyk-js

esolang interpreter javascript lazy-k

Last synced: 2 days ago
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Lazy K interpreter

• Host: GitHub
• URL: https://github.com/susisu/lazyk-js
• Owner: susisu
• License: mit
• Created: 2015-11-03T15:06:19.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2016-03-31T09:18:20.000Z (over 8 years ago)
• Last Synced: 2024-12-06T08:06:07.942Z (21 days ago)
• Topics: esolang, interpreter, javascript, lazy-k
• Language: JavaScript
• Homepage:
• Size: 22.5 KB
• Stars: 1
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Lazy K-JS

Lazy K interpreter

## How to use

``` shell

npm install -g lazyk-js

lazykjs /path/to/src

```

For example, save the code below (cited from https://tromp.github.io/cl/lazy-k.html) as `primes.lazy`

```

K

(SII(S(K(S(S(K(SII(S(S(KS)(S(K(S(KS)))(S(K(S(S(KS)(SS(S(S(KS)K))(KK)))))

(S(S(KS)(S(KK)(S(KS)(S(S(KS)(S(KK)(S(KS)(S(S(KS)(S(KK)(SII)))

(K(SI(KK)))))))(K(S(K(S(S(KS)(S(K(SI))(S(KK)(S(K(S(S(KS)K)(S(S(KS)K)I)

(S(SII)I(S(S(KS)K)I)(S(S(KS)K)))))(SI(K(KI)))))))))(S(KK)K)))))))(K(S(KK)

(S(SI(K(S(S(S(S(SSK(SI(K(KI))))(K(S(S(KS)K)I(S(S(KS)K)(S(S(KS)K)I))

(S(K(S(SI(K(KI)))))K)(KK))))(KK))(S(S(KS)(S(K(SI))(S(KK)(S(K(S(S(KS)K)))

(SI(KK))))))(K(K(KI)))))(S(S(KS)(S(K(SI))(SS(SI)(KK))))(S(KK)

(S(K(S(S(KS)K)))(SI(K(KI)))))))))(K(K(KI))))))))))(K(KI)))))(SI(KK)))))

(S(K(S(K(S(K(S(SI(K(S(K(S(S(KS)K)I))(S(SII)I(S(S(KS)K)I)))))))K))))

(S(S(KS)(S(KK)(SII)))(K(SI(K(KI)))))))(SII(S(K(S(S(KS)(S(K(S(S(SI(KK))

(KI))))(SS(S(S(KS)(S(KK)(S(KS)(S(K(SI))K)))))(KK))))))(S(S(KS)

(S(K(S(KS)))(S(K(S(KK)))(S(S(KS)(S(KK)(SII)))(K(S(S(KS)K)))))))(K(S(S(KS)

(S(K(S(S(SI(KK))(KI))))(S(KK)(S(K(SII(S(K(S(S(KS)(S(K(S(K(S(S(KS)(S(KK)

(S(KS)(S(K(SI))K))))(KK)))))(S(S(KS)(S(KK)(S(K(SI(KK)))(SI(KK)))))

(K(SI(KK))))))))(S(S(KS)(S(K(S(KS)))(S(K(S(KK)))(S(S(KS)(S(KK)(SII)))

(K(SI(K(KI))))))))(K(K(SI(K(KI)))))))))(S(K(SII))(S(K(S(K(SI(K(KI))))))

(S(S(KS)(S(KK)(SI(K(S(K(S(SI(K(KI)))))K)))))(K(S(K(S(SI(KK))))

(S(KK)(SII)))))))))))(K(SI(K(KI))))))))(S(S(KS)K)I)

(SII(S(K(S(K(S(SI(K(KI)))))K))(SII)))))

```

and run

``` shell

lazykjs primes.lazy

```

It is much slower than other implementations, but it exactly works!

## License

[MIT License](http://opensource.org/licenses/mit-license.php)

## Author

Susisu ([GitHub](https://github.com/susisu), [Twitter](https://twitter.com/susisu2413))