The shell command line editor is quite dated

An up-to-date editor for the shell command line would be a very welcome improvement to the MongoDB client. Here is a list of things that I find most annoying:

• navigation keys (Home, End, Ctrl+arrow) do not work at all; you have to keep depressed arrow keys in order to navigate through your command
• searching in the history of commands is not possible
• the editor is pretty easy to confuse if one tries to write a multiline script in the command line, but fails to pair braces correctly

Is it possible to use the readline library for this, or a similar cross-platform library with an acceptable license?

Thanks.