Assuming that that input is from the command line, you can use the inbuilt commandLineParams() instead of manually parsing it (example in my notes: [https://scripter.co/notes/nim/#command-line-parameters)](https://scripter.co/notes/nim/#command-line-parameters\)).
Though, I use the **cligen** package from Nimble for my CLI parsing needs in general for much more CLI arg and switch parsing and auto doc support.
