The discussion period for this proposal is near (31 of May).
So far I count 1 for and 2 against the proposal.
Joachim Breitner made a good enumeration of some advantages of adding these
to base. Here is an enumeration of pros:
* Availability in Data.List gives this pattern a common name.
* A common name for this makes code easier to read and decreases the risk
of getting the definition wrong.
* The argument won't have to be repeated, hence making it easier to chain
the functions.
* List-fusion potential.
Tobias Florek pointed out that `zip <*> tail` can be used to define this
inline without the need for repeating the argument and made a reference to
the Fairbairn threshold. This is elegant, but I am afraid that people might
consider this obscure code golfing if used.
Cheers
Johan Holmquist
---------- Forwarded message ----------
From: Henning Thielemann
Think of it as if it handles the non-[] case.