Command line arguments parsing problem / How can i pass 2 arguments for an option?

It does not seem normal, no.

With this version: Elixir 1.11.0 (compiled with Erlang/OTP 23)

and this script :

# ttt.exs

System.argv()
|> IO.inspect(label: "argv")

OptionParser.parse(System.argv(), strict: [options: :string])
|> IO.inspect(label: "parsed")

I get those results:

$ elixir ttt.exs --options=25,26
argv: ["--options=25,26"]
parsed: {[options: "25,26"], [], []}

But I am currently on MacOS. What if you run as elixir script.exs --options "25,26" ?

Experimented a little and found a source of the problem - PowerShell.

1. Through cmd.exe:

elixir ttt.exs --options 25,26
argv: [“–options”, “25”, “26”]
parsed: {[options: “25”], [“26”], }
but this works:
elixir ttt.exs --options “25,26”
argv: [“–options”, “25,26”]
parsed: {[options: “25,26”], , }

2. Through PowerShell which is default on Win10:

elixir ttt.exs --options 25,26
argv: [“–options”, “25”, “26”]
parsed: {[options: “25”], [“26”], }
and this does not work either:
elixir ttt.exs --options “25,26”
argv: [“–options”, “25”, “26”]
parsed: {[options: “25”], [“26”], }