Pastel Quickstart

This quickstart builds off Getting Started and assumes you have a native Reason project set up.

Install Pastel

To install Pastel in your project with esy, run

esy add @reason-native/pastel

This will add @reason-native/pastel into your package.json.

In order to use Pastel, you must add it to your build system. With dune, pastel.lib must be added to the relevant dune file:

(libraries ... pastel.lib)

Sample Code

Pastel is fundamentally a Reason JSX element that wraps text in ANSI-compatible formatting. You can specify attributes such as bold, underline, and color to format terminal output. Wrap your pastel elements with Pastel.() to convert it to a string:

let output =
  Pastel.(
    <Pastel bold=true color=Green>
      "Hello "
      <Pastel italic=true underline=true> "World" </Pastel>
    </Pastel>
  );
print_endline(output);

Hello World