password input

Stream: Is there code for X?

[Asei Inoue]

I wrote the following function to accept input from the keyboard:

def IO.getInputln : IO String := do
  (← IO.getStdin).getLine

This function works, but I have a question.
When prompting for a password, the entered string is usually not displayed in the terminal. However, if I use the getInputln function above, the entered string is displayed. How can I control what is displayed in the terminal, regardless of the entered string?

[Julian Berman]

It's OS specific of course. On *nix/ in POSIX you flip the echo termios bit, see e.g.: https://github.com/python/cpython/blob/3.13/Lib/getpass.py#L68