I use stty raw -echo in my tcl terminal program.
What I want is to do some actions for only a few key press events such as Tab. For the rest of the key press events I want to delegate to rlwrap or other default handling program, such as ← to move cursor to left hand side and insert text in where the cursor is, or Ctrl+C to terminate the program. Is there a way to do it?
There is an option in stty that handles signals for you which is the isig option.
Also, -opost process "\n" to "\r\n" for you.
stty raw -echo isig
Another choice is to use explicit -icanon min 1 time 0 instead of raw option.