How do I colorize iex?

CharlesIrvine · January 20, 2024, 9:53pm

How do I configure IEx colorization, complete with syntax coloring, as shown in the examples in the Elixir Guides (Introduction — Elixir v1.16.0)? I’m on a Mac using zsh. Thanks

Pal · January 21, 2024, 1:12am

Thinking Elixir podcast has something:

CharlesIrvine · January 21, 2024, 7:36pm

I am using IEx.configure, but I don’t get all the colorization that I see in the Elixir guides. I’m guessing at this point that the colorization isn’t coming IEx interaction but is being added as part of the formatting of the online guides.

felix-starman · January 24, 2024, 2:17am

Here’s mine if that helps

github.com

petermueller/dotfiles/blob/chezmoi/dot_iex.exs

# IEx.configure colors: [enabled: true]
# IEx.configure colors: [ eval_result: [ :cyan, :bright ] ]
IO.puts IO.ANSI.magenta_background() <> IO.ANSI.white() <> " ❄❄❄ All things serve the BEAM ❄❄❄ " <> IO.ANSI.reset
Application.put_env(:elixir, :ansi_enabled, true)
IEx.configure(
  colors: [
    eval_result: [:green, :bright] ,
    eval_error: [[:red,:bright,"Bug Bug ..!!"]],
    eval_info: [:yellow, :bright ],
  ],
  default_prompt: [
    "%prefix",:white,"|",
      :blue,
      "%counter",
      :white,
      "|",
    :red,
    "▶" ,         # plain string
    :white,
    "▶▶"  ,       # plain string

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APB9785 · January 24, 2024, 3:51pm

What is the result of echo $TERM ? You might need to enable 256 color in the terminal settings, or upgrade your terminal to one that supports it.