last()

Evaluates True on the last line to be scanned.

last() used by itself will always run, even if its line turns out to be blank and would otherwise be skipped. When last() is composed within other functions it loses that ability to run no matter what. For e.g. last() -> print("will always run") vs. and(yes(), last()) -> print("runs if the last scanned line is not blank")

Optionally, last() can take a function that will be evaluated when last() evaluates to True. This function, if provided, will not necessarily be the last evaluation of the run, but will happen only on the last line. At this time a last() that has an encapsulated function will correctly run on the last line but it will not produce True in assignment. Changing that behavior is on the todo list. It should not be relied on.

Data signatures
last( [eval on last: $${\color{green}None}$$ ǁ $${\color{green}Any}$$] )

Call signatures
last( [eval on last: Function ǁ Variable ǁ Equality] )

Purpose	Value
Main focus	last() determines if lines match

Context	Qualifier
Match qualifiers	onmatch
Value qualifiers	onmatch

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