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submitted 1 year ago by ambrosiaforest@lemmy.blahaj.zone to c/196@lemmy.blahaj.zone

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original: https://lemmy.blahaj.zone/post/8572031

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[-] gerryflap@feddit.nl 10 points 1 year ago

I've written Haskell quite a bit, and I don't fully understand why this is called Haskell style. Haskell code looks nothing like this, the syntax is completely different. For Haskell's syntax I think it works fine, because I never noticed something weird. But this code in "Haskell style" looks absolutely insane

[-] t_veor@sopuli.xyz 11 points 1 year ago

It's sometimes called comma-leading style where you move all the special characters to the front of the line and it is exceedingly common in Haskell, possibly due to how Haskell treats significant whitespace. You've surely seen list definitions that look like this:

someList =
  [ 1
  , 2
  , 3
  ]

or a data definition like this:

data Color
  = Red
  | Green
  | Blue
  | RGB Int Int Int
  deriving (Show, Eq)

or a list of module exports like this:

module Foo
  { bar
  , baz
  , quux
  }

Or in a long function type declaration where the arrows are moved to the start of the line, or a record definition, etc. etc.

this post was submitted on 10 Feb 2024

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