ranger

create ranges over any type

Quick start

gleam test  # Run the tests
gleam shell # Run an Erlang shell

Installation

This package can be added to your Gleam project:

gleam add ranger

and its documentation can be found at https://hexdocs.pm/ranger.

Usage

import gleam/float
import ranger

pub fn main() {
  let range =
    ranger.create(
      validate: fn(_) { True },
      negate_step: fn(s) { -1.0 *. s },
      add: fn(a, b) { a +. b },
      compare: float.compare,
    )

  let assert Ok(z_to_p) = range("z", "p", 1)
  z_to_p
  |> iterator.to_list
}