distinguish between ctrl C vs ctrl D

[timotheecour]

in bash, python3 and pretty much all repls, ctrl C doesn't run the current entered line but also doesn't exit the repl, whereas ctrl D (when there is no input written) exits the REPL.

here, both ctrl C and ctrl D exit the REPL. How can we at least distinguish whether ctrl C or ctrl D was entered?

example

bash-3.2$ asdf # control C was entered here
bash-3.2$ asdf # control D was entered here
bash-3.2$ exit

[jangko]

use 'getKeyType to know whether the last exit condition caused by CTRL-C/CTRL-D/ESC. It's a misnomer artifact, but I keep it for historical reason.