applyPairs for lists

[mahrud]

This:

hashTable applyPairs({10,20,30}, identity)

should act like this:

i12 : hashTable toList apply(pairs {10,20,30}, identity)

o12 = HashTable{0 => 10}
                1 => 20
                2 => 30

[d-torrance]

Probably the same for selectPairs and scanPairs.

Would it be better to turn this into methods, or implement the list versions in the interpreter?

[mahrud]

Between methods or interpreter, I'm not sure which is better.

By the way, you could define pairs Iterator to give a new iterator and define applyPairs for an iterator.