Proposal: Add singleton function to Data.List module

[Andreas Abel]

Helmut, do you actually know the container APIs?

Show me cons and append in Data.Set!

On 2019-08-18 19:40, Helmut Schmidt wrote:
> 
> 
> Am So., 18. Aug. 2019 um 17:17 Uhr schrieb Oliver Charles 
> <ollie at ocharles.org.uk <mailto:ollie at ocharles.org.uk>>:
> 
>     On Sun, 18 Aug 2019, 5:47 pm Helmut Schmidt,
>     <helmut.schmidt.4711 at gmail.com
>     <mailto:helmut.schmidt.4711 at gmail.com>> wrote:
> 
> 
>         All these philosophical arguments calling for "consistency" with
>         the container APIs or that function need words for the human
>         mind to comprehend seem short-sighted to me. If we were
>         consistent about the proposal itself we'd also demand to add
> 
>            cons = (:)
> 
>            empty = []
> 
>            toList = id
> 
>            fromList = id
> 
> 
>     I honestly have no problem with any of these.
> 
> 
> I forgot
> 
>      append = (++)
> 
> We also need to address another elephant in the room... those pesky 
> tuples and their special privileged non-wordy syntax!
> 
>     pair = (,)
> 
>     triple = (,,)
> 
>     quadruple = (,,,)
> 
>     quituple = (,,,,)
> 
>     sextuple = (,,,,,)
> 
>     septuble = (,,,,,,)
> 
>     octuple = (,,,,,,,)
> 
> If Haskell were invented in this century's EU Haskell source code would 
> be littered with €s instead of $s but then again I wonder why £ wasn't 
> picked. But I digress. We can kill two birds with one stone here:
> 
>     apply = ($)
> 
>     strictApply = ($!)
> 
>     compose = (.)
> 
> 
> It's fun to imagine how code using those definitions would like! But 
> it's still a -1 for me, sorry!
> 
> 
> 
> 
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