Proposal: Add singleton function to Data.List module

[Helmut Schmidt]

Andreas, you seem to be mistaken there'd only be one container API? But
there's several container APIs besides "Data.Set" which provide some
collection of elements!

https://hackage.haskell.org/package/dlist-0.8.0.7/docs/Data-DList.html#v:cons

https://hackage.haskell.org/package/dlist-0.8.0.7/docs/Data-DList.html#v:append

https://hackage.haskell.org/package/text-1.2.4.0/docs/Data-Text.html#v:cons

https://hackage.haskell.org/package/text-1.2.4.0/docs/Data-Text.html#v:append

http://hackage.haskell.org/package/vector-0.12.0.3/docs/Data-Vector.html#v:cons

https://hackage.haskell.org/package/bytestring-0.10.10.0/docs/Data-ByteString.html#v:cons

https://hackage.haskell.org/package/bytestring-0.10.10.0/docs/Data-ByteString.html#v:append

Am Mo., 19. Aug. 2019 um 08:16 Uhr schrieb Andreas Abel <
andreas.abel at ifi.lmu.de>:

> 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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> >
>
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