Ian just kindly explained loopExit to me so it seems I didn't phrase my question clearly enough :-)

By loopExit[Value]Continue I mean loopExitContinue / loopExitValueContinue.

They're not explained in the manual (there's a comment in the slot, but I couldn't correlate that with the code) and are not sent anywhere so there's no example of how to use them.

How must a block look like that will respond correctly to this message? What does any argument to `exit:' have to look like? For example, making sense of the loopExit method is difficult without knowing that the block that you send it to must have an `:exit' slot that takes the `escape' block.

[Hmm, I just realize X-Copy/Paste doesn't work with the Self window :-{ ]

The comment says: `Same as loopExit, plus a second arg block that causes the loop body to restart'

Looking at the code a little harder, I can now make sense of that line.

([[| :exit | value: [^ nil] With: [exit value]. ] exit ] loop)

The message that will ultimately be sent to the receiving block is the third line and a template for a receiver might look like this:

[| :exit. :continue. | mandatoryCode. shouldExit if: exit. shouldShortCircuit: continue value. "Is the `value' necessary here?" facultativeCode. ]

So this provides sth like C's `continue' keyword. I think I understand how this works now, but I'm not 100% sure.

Rainer