The bool-extras package

[Tags: bsd3, library]

The bool function allows folding over boolean values.

This is comparable to the maybe or either functions on their respective types.

The bool function is a replacement for the build-in if then else-syntax. However, since it is a function, it can be partially applied and passed around to higher order functions, like so:

 ghci> :m + Data.Bool.Extras
 ghci> let yesOrNo = bool "no" "yes"
 ghci> map yesOrNo [True, False, True]
 ["yes", "no", "yes"]

Note that the arguments to bool are in the opposite order of the if then else-syntax; First the false value, then the true value, and finally the boolean.


Properties

Versions0.2.0, 0.3.0, 0.4.0
Dependenciesbase (>=3 && <5)
LicenseBSD3
AuthorErik Hesselink, Jeroen Leeuwestein, Tom Lokhorst, Sebastiaan Visser
MaintainerTom Lokhorst <tom@lokhorst.eu>
StabilityStable
CategoryData
Home pagehttp://tom.lokhorst.eu/bool-extras
Upload dateFri Apr 4 12:58:55 UTC 2014
Uploaded byTomLokhorst
DistributionsNixOS:0.4.0
Downloads400 total (46 in last 30 days)

Modules

[Index]

Downloads

Maintainers' corner

For package maintainers and hackage trustees