4 ms·

Small Brainf*ck Interpreter in Scala

12 points by dindresto 14y ago

jdiez17 14y ago
Sorry, but I must be missing what's so interesting. Great, you wrote a Brainfuck (why do people insist in censoring themselves?!) in Scala. You didn't even implement dynamic memory resizing. Again, not sure why this is here.
- dindresto 14y ago
  Exactly. It's not that interesting. But why should I care if others don't care either? Anyhow, I decided for 2013 that I'll submit anything I write related to programming on HN.
- evincarofautumn 14y ago
  Agreed, more or less. Brainfuck implementations are not generally interesting, except as proofs of Turing-completeness for other esoteric languages. And there are many more esolangs out there with much wilder and more beautiful semantics than Brainfuck. Implementing those can be a really valuable learning experience. Also, if we’re bringing Scala into it, I would be more interested to see a type-level implementation.
  - jrabone 14y ago
    If we're bringing Scala into it, I'd like to see a Scala compiler in Brainfuck. That might keep the esolang people quiet for a bit :)
  - rolux 14y ago
    > And there are many more esolangs out there with much wilder and more beautiful semantics than Brainfuck. Implementing those can be a really valuable learning experience. Like, for example, INTERCAL with threading via `comefrom`: http://www.cse.unsw.edu.au/~malcolmr/intercal/threaded.html http://www.cse.unsw.edu.au/~malcolmr/intercal/threaded.html
    - evincarofautumn 14y ago
      Lazy K[1] and Funciton[2] are two of my personal favourites. [1]: http://homepages.cwi.nl/~tromp/cl/lazy-k.html http://homepages.cwi.nl/~tromp/cl/lazy-k.html [2]: http://esolangs.org/wiki/Funciton http://esolangs.org/wiki/Funciton
rolux 14y ago
As any other Brainfuck interpreter, it shows that Brainfuck is a nice, simple, small language. Things become mildly more interesting when you write a transpiler, lets say to Scala. See here for a sketch of a "Brainfuck IDE" that compiles to JavaScript (just click "load", then "compile"): http://rolux.org/brainfuck/ http://rolux.org/brainfuck/
- dindresto 14y ago
  Looks pretty cool, I think I'll try doing something like that!
  - rolux 14y ago
    As you can see in the example above, there are a few features that can make a Brainfuck developer's life less miserable, like source formatting, error handling or logging.

12 points by dindresto 14y ago

Sorry, but I must be missing what's so interesting. Great, you wrote a Brainfuck (why do people insist in censoring themselves?!) in Scala. You didn't even implement dynamic memory resizing. Again, not sure why this is here.

dindresto 14y ago
Exactly. It's not that interesting. But why should I care if others don't care either? Anyhow, I decided for 2013 that I'll submit anything I write related to programming on HN.
evincarofautumn 14y ago
Agreed, more or less. Brainfuck implementations are not generally interesting, except as proofs of Turing-completeness for other esoteric languages. And there are many more esolangs out there with much wilder and more beautiful semantics than Brainfuck. Implementing those can be a really valuable learning experience. Also, if we’re bringing Scala into it, I would be more interested to see a type-level implementation.
- jrabone 14y ago
  If we're bringing Scala into it, I'd like to see a Scala compiler in Brainfuck. That might keep the esolang people quiet for a bit :)
- rolux 14y ago
  > And there are many more esolangs out there with much wilder and more beautiful semantics than Brainfuck. Implementing those can be a really valuable learning experience. Like, for example, INTERCAL with threading via `comefrom`: http://www.cse.unsw.edu.au/~malcolmr/intercal/threaded.html http://www.cse.unsw.edu.au/~malcolmr/intercal/threaded.html
  - evincarofautumn 14y ago
    Lazy K[1] and Funciton[2] are two of my personal favourites. [1]: http://homepages.cwi.nl/~tromp/cl/lazy-k.html http://homepages.cwi.nl/~tromp/cl/lazy-k.html [2]: http://esolangs.org/wiki/Funciton http://esolangs.org/wiki/Funciton

rolux 14y ago

As any other Brainfuck interpreter, it shows that Brainfuck is a nice, simple, small language. Things become mildly more interesting when you write a transpiler, lets say to Scala. See here for a sketch of a "Brainfuck IDE" that compiles to JavaScript (just click "load", then "compile"): http://rolux.org/brainfuck/ http://rolux.org/brainfuck/

dindresto 14y ago
Looks pretty cool, I think I'll try doing something like that!
- rolux 14y ago
  As you can see in the example above, there are a few features that can make a Brainfuck developer's life less miserable, like source formatting, error handling or logging.