Enables 256 color ANSI coloring in the terminal and gives you the ability to alias colors to more semantic and application-specfic names.
Installation
It's available via Hex:
-
Add bunt to your list of dependencies in
mix.exs:def deps do [{:bunt, "~> 1.0"}] end
-
Ensure bunt is started before your application:
def application do [extra_applications: [:bunt]] end
Usage
256 colors
IO.ANSI provides an interface to write text to the terminal in eight different colors like this:
["Hello, ", :red, :bright, "world!"]
|> IO.ANSI.format
|> IO.puts
This will put the word "world!" in bright red.
To cause as little friction as possible, the interface of Bunt.ANSI is 100% adapted from IO.ANSI.
We can use Bunt in the same way:
["Hello, ", :color202, :bright, "world!"]
|> Bunt.ANSI.format
|> IO.puts
which puts a bright orange-red "world!" on the screen.
Bunt also provides a shortcut so we can skip the format call.
["Hello, ", :color202, :bright, "world!"]
|> Bunt.puts
and since nobody can remember that :color202 is basically :orangered, you can use :orangered directly.
Named colors
The following colors were given names, so you can use them in style:
[:gold, "Look, it's really gold text!"]
|> Bunt.puts
Replace :gold with any of these values:
darkblue mediumblue darkgreen darkslategray darkcyan
deepskyblue springgreen aqua dimgray steelblue
darkred darkmagenta olive chartreuse aquamarine
greenyellow chocolate goldenrod lightgray beige
lightcyan fuchsia orangered hotpink darkorange
coral orange gold khaki moccasin
mistyrose lightyellow
You can see all supported colors by cloning the repo and running:
$ mix run script/colors.exs
User-defined color aliases
But since all these colors are hard to remember, you can alias them in your config.exs:
# I tend to start the names of my color aliases with an underscore
# but this is, naturally, not a must.
config :bunt, color_aliases: [_cupcake: :color205]
Then you can use these keys instead of the standard colors in your code:
[:_cupcake, "Hello World!"]
|> Bunt.puts
Use this to give your colors semantics. They get easier to change later that way. (A colleague of mine shouted "It's CSS for console applications!" when he saw this and although that is ... well, not true, I really like the sentiment! 👍)
Contributing
- Fork it!
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request
Author
René Föhring (@rrrene)
License
Bunt is released under the MIT License. See the LICENSE file for further details.
"Elixir" and the Elixir logo are copyright (c) 2012 Plataformatec.
Elixir source code is released under Apache 2 License.
Check NOTICE, ELIXIR-LICENSE and LICENSE files for more information.
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