Class delete

Lib/_pyrepl/commands.py:419–439

class delete(EditCommand):
    def do(self) -> None:
        r = self.reader
        b = r.buffer
        if self.event[-1] == "\004":
            if b and b[-1].endswith("\n"):
                self.finish = True
            elif (
                r.pos == 0
                and len(b) == 0  # this is something of a hack
            ):
                r.update_screen()
                r.console.finish()
                raise EOFError

        for i in range(r.get_arg()):
            if r.pos != len(b):
                del b[r.pos]
                r.dirty = True
            else:
                self.reader.error("end of buffer")


class accept(FinishCommand):