README.md in ribimaybe-0.0.11 vs README.md in ribimaybe-0.0.12
- old
+ new
@@ -1,16 +1,16 @@
# Ribimaybe
> "Flavouring the ocean with a teaspoon of sugar."
[](http://badge.fury.io/rb/ribimaybe)
-[](http://travis-ci.org/unsymbol/ribimaybe)
+[](http://travis-ci.org/filib/ribimaybe)
[](https://codeclimate.com/github/unsymbol/ribimaybe)
-A tiny Ruby library that provides a Maybe datatype which is a Functor,
+A tiny Ruby library that provides a Maybe datatype which is a Functor,
Applicative Functor and Monad.
## Installation
Add this line to your application's Gemfile:
@@ -25,27 +25,27 @@
$ gem install ribimaybe
## Usage
-This is a small library and so it doesn't offer lots of creature comforts. The
-one escape hatch it does offer is the ability to convert `nil` into `Nothing`.
+This is a small library and so it doesn't offer lots of creature comforts. The
+one escape hatch it does offer is the ability to convert `nil` into `Nothing`.
``` ruby
include Ribimaybe::Maybe
Maybe(42) # => Just(42)
Maybe(nil) # => Nothing
```
-And that's it, once you have lifted your value into a `Maybe` you can treat it
+And that's it, once you have lifted your value into a `Maybe` you can treat it
as a `Functor`, `Applicative Functor` or `Monad`. If you want to pull your value
out of a `Maybe`, we got you covered too.
``` ruby
Just(42).maybe(false) { |x| x == 42 } # => true
-Nothing.maybe(false) { |x| x == 42 } # => false
+Nothing.maybe(false) { |x| x == 42 } # => false
```
### Functor [\[info\]](http://learnyouahaskell.com/functors-applicative-functors-and-monoids)
``` ruby
@@ -59,17 +59,21 @@
### Applicative Functor [\[info\]](http://learnyouahaskell.com/functors-applicative-functors-and-monoids)
``` ruby
include Ribimaybe::Maybe
-# Wrap functions inside functors and apply them to other functors!
+# Wrap functions inside functors and apply them to other functors!
Just do |x, y|
x * y
end.apply(pure(42)).apply(pure(42)) # => Just(1764)
Just do |x|
x * x
end.apply(Nothing) # => Nothing
+
+# We can't define <*> but we can define a different operator with the same
+# semantics!
+Just { |x, y| x * y } >> pure(42) >> pure(42) # => Just(1764)
```
### Monad [\[info\]](http://www.learnyouahaskell.com/a-fistful-of-monads)
``` ruby