Io - polling for key down event - how to?

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To answer your question, There will be two parts to what you are trying to do[1]

First: since you are reading from a tty, you will need to put the tty in ‘non-canonical’ mode. By default TTY’s will only write out data on a new line. You can change that to stream data on new bytes, by putting the tty into non-canonical mode. man termios has more information on what that means.

Second: There is a std.io.poll function, which will give you a poller on a file.

Here are some additional resources and references

  • ztui-tabby: A TUI Keyboard Handling library
  • libvaxis: A TUI library with keyboard handling functionality
  • crossterm-rs: A rust library that has keyboard event handling code.

  1. This is all for unix, I have no experience in how this would work on windows ↩︎

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