Monday, May 13, 2019
Detecting key press in Ruby
To check whether a key is pressed in linux (non-blocking, non-waiting).
def keypressed
system('stty raw -echo') # => Raw mode, no echo
char = (STDIN.read_nonblock(1).chr rescue nil)
system('stty -raw echo') # => Reset terminal mode
char
end
Inspired on https://stackoverflow.com/a/22659929.
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