Interpreter stops working after expression that involves $_

[vulecoff]

There seems to be an issue involving parsing variable $_ in the recent Mettalog commits. Interpreter silently stops working right after expression that has $_, no errors or outputs.

Example

!(SIGNPOST 1)
(foo $_)
!(SIGNPOST 2)

only gives [(SIGNPOST 1)]

[TeamSPoon]

This bug was breaking soooo much !

OK,. Supposedly fixed with 64cb365
Can you, @vulecoff, confirm if this is now fixed? (If so close hte issue.. if not assign me)

[vulecoff]

It took me almost half a day to narrow down the bug... It seems to be working now. Mostly likely it's fully resolved given the fix. But I'll leave it open for a couple days or two to test larger scripts and see if any other weirdness comes up.