Allow CTRL-c to stop entry in REPL #4405
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And a second CTRL-c to exit the REPL if nothing else was entered. This in response to #4402. This does *not* achieve the suggested behaviour of being able to stop a runaway piece of code, as Raku's signal handler runs on a different thread and we currently do not have a way to force an exception on anything else but the current thread. It *does* allow one to restart entry without having to remove all characters.
As the REPL loop is actually inside the repl-loop method.
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And a second CTRL-c to exit the REPL if nothing else was entered.
This in response to #4402.
This does not achieve the suggested behaviour of being able to
stop a runaway piece of code, as Raku's signal handler runs on a
different thread and we currently do not have a way to force an
exception on anything else but the current thread. It does
allow one to restart entry without having to remove all characters.