Re: job control for the es shell

[Mikael Eklund <li-fi@ludd.luth.se>]

I remember what Paul said about jobcontrol many years ago.  He felt it
didn't fit in with the functional programming style of es.  He wanted
to add a feature called `first class continuation' before jobcontrol
could be added the right way.

Since then, I've had an idea that each internal command sequence (also
possibly containing external commands) should run as its own thread.
If I ever find the time to really learn threaded programming, this
would be a nice project. :-)