RangeEx is a Library for working with ranges. Ranges can be of different types, while the examples here are used using {from,to} Tuples.

alias Rangex.RangeList
range_list =[{1,10}, {20,30}]

Now, given the above list we could insert a new range:

iex(3)> range_list=RangeList.add_range range_list , {11,19}
[{1, 10}, {11, 19}, {20, 30}]

Now if you insert {10,11} the first two ranges are combined into one:

iex(5)> range_list=RangeList.add_range range_list , {10,11}
[{1, 19}, {20, 30}]

This is just a short example, more documentation can be found in Hex.pm

If available in Hex, the package can be installed by adding rangex to your list of dependencies in mix.exs:

def deps do
  [
    {:rangex, "~> 0.1.0"}
  ]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/rangex.