Comments. find_symbol raises SymbolError.
Any return value from an action is printed as an event. Good idea?
Move the symbol code out.
Tint the locale pane header.
A few global symbol implementations.
Comment the use of exceptions in $if/$elif
A step towards real scripting. However, we've currently lost the ability
to write other-location symbols.
Two function prefixes is just confusing.
Misnamed Num class
Attempt to label the origin of code. Poorly.
Some binary and unary operators.
Boolean ops.
The CPU limiting counter, in simple form. (No recursion depth limit yet.)
Catch code exceptions in the appropriate place, at the top level.
More realistic tick limit.