PipeEnvy
WARNING
This lib is experimental & is probably not a good idea.
PipeEnvy overrides the pipe operator
|on Array & Integer. It also adds it to Object.
Fun Stuff
Elixir's pipe operator is very cool & supports intuitive reasoning about data transformations similar to Unix pipelines.
"Elixir Rocks" |> String.upcase |> String.split # => ["ELIXIR", "ROCKS"]Rubyists can now enjoy this same mental model of data transformation.
gem install pipe_envyrequire "pipe_envy"
# refinements that apply extensions to Object, Array, & Integer in the current scope
using PipeEnvy
"Ruby Rocks" | :upcase | :split # => ["RUBY", "ROCKS"]Here's a more sophisticated albeit contrived example. Notice that methods which require arguments are piped as Arrays.
magic = (1..100) \
| :to_a \
| [:select!, -> (i) { i.even? }] \
| [:map, -> (i) { i ** 10 }] \
| :sum \
| Math.method(:sqrt) \
| :to_s \
| :chars \
| :reverse \
| [:[], 3] \
| :to_i
# => 7Be sure to check out Chainable Methods which offers similar behavior.
Here's another example similar to the one on the chainable_methods repo.
magic = "foo bar http://github.com/hopsoft/pipe_envy foo bar" \
| URI.method(:extract) \
| :first \
| URI.method(:parse) \
| :open \
| :readlines \
| :join \
| Nokogiri::HTML.method(:parse) \
| [:css, "h1"] \
| :first \
| :text \
| :strip
# => "hopsoft/pipe_envy"