How to handle colons in command-line application user inputs?

var name: String?
print("What is the name?")

if let input = readLine() {
    name = input
}

if let name = name {
    print("You input: \(name)")
}

I have a command-line application where the user is asked to input a name that may contain colons. In the macOS zsh terminal, when the user inputs a colon, it autocompletes to what looks like a dictionary:

acidgate % What is the name? // prompt user for input
acidgate % [Acid Gate: 2020] // the user's input is autocompleted with brackets

This is what I want it to look like:

acidgate % What is the name?
acidgate % Acid Gate: 2020 // no autocomplete

If I can disable this autocomplete in my application, that would be ideal. If not, how do I handle the response? Because if the user manually deletes the brackets after they are autocompleted for him, the string has weird artifacting:

You input: Acid Gate: 2020� // printing the user's input

However, if the user doesn't remove the square brackets and inputs [Acid Gate: 2020], the print console appears to show a clean string:

You input: Acid Gate: 2020