Re: Is 78 characters still a good option? Was: [Haskell-cafe] breaking too long lines

On 25 Apr 2009, at 18:34, Xiao-Yong Jin wrote:

Miguel Mitrofanov writes:

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On 24 Apr 2009, at 16:37, Loup Vaillant wrote:

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2009/4/23 Miguel Mitrofanov :

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On 23 Apr 2009, at 12:17, Thomas Davie wrote:

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Haskell is a very horizontal language, and to limit our horizontal space seems pretty weird.

+1. I sometimes use lines up to 200 characters long, when I feel they would be more readable.

200 sounds awfully long. Do you have any example?

Something like

newtype MyCoolMonad = MyCoolMonad (FirstTransformer (SecondTransformer (ThirdTransformer Whatever))) deriving (Functor, Monad, FirstClass, SecondClass, ThirdClass, SomeOtherClass)

Nobody would be really interested in "deriving" clause, because it basically says "derive everything possible". Therefore, it seems pointless to move it to another line.

You don't write lisp, do you? Or probably it is just me. But I would prefer to write the line as

newtype MyCoolMonad = MyCoolMonad (FirstTransformer (SecondTransformer (ThirdTransformer Whatever)))

Well, first impression I've got from this was that FirstTransformer, SecondTransformer and the rest are on the same level: newtype MyCool Monad = MyCoolMonad (FirstTransformer) (SecondTransformer) (ThirdTransformer Whatever) which is very confusing.

deriving (Functor, Monad, FirstClass, SecondClass, ThirdClass, SomeOtherClass)

A lot of unnecessary information distracting the reader. It's better kept somewhere else, where it doesn't attract too much attention - like in the end of the line.