shterrett / custom-monads

Implementing custom monads a la _Book of Monads_

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custom-monads

Multiple implementations of a single "turn" of Hangman using custom monadic interpreters:

  • Final (tagless)
  • Initial (tagged)
  • Free Monads
  • Free-er Monads

Based on material presented in Book Of Monads by Alejandro Serrano Mena

Hangman

In an arbitrary turn of hangman:

  • Display the (partially) obfuscated word
  • Display the previously missed guesses
  • Ask user for a guess
  • Validate that the guess has not been guessed already
  • Check if the guess is correct
  • If incorrect, check if the number of missed guesses is greater than some arbitrary threshold; if so, then indicate the game is over
  • If correct, check if the word is solved; if so, indicate the game is over

Basic operations:

  • Get Input
  • Show output
  • Get target word
  • Get correct guesses
  • Put correct guess
  • Get incorrect guesses
  • Put incorrect guess
  • Get game-over threshold (or hardcode)

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Implementing custom monads a la _Book of Monads_

License:BSD 3-Clause "New" or "Revised" License


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Language:Haskell 100.0%