Sublime Lines - Multisets

This Sublime Text plugin allows you to compare, merge and manipulate lists of things,
whether they are todo items, lists of files or arrays from API responses:

How to use

Switch to a file with a list you want to modify and select an operation to perform from the Command Palette
(or using Edit -> Lines - Multisets menu).

Operations

Add

The result is all items from both lists. Example:

Result: one, two, three, three, four, four, four

Union#Unions)

The result is items from both lists, but only one item for every match. Example:

List 1	List 2	Match
one	two
three	three
four	four
four

Result: one, two, three, four, four

Intersection#Intersections)

The result is only items that exist in both lists. Example:

List 1	List 2	Match	Result
one	two
three	three		three
four	four		four
four	five
five	five		five
five	five		five

Difference)

The result is items from list 1 that don’t have a match in list 2. Example:

List 1	List 2	Match	Result
one	two		one
three	three
four	four
four	five		four
five	five
five	five

Symmetric difference

The result is items that exist in only one of the lists. Example:

List 1	List 2	Match
one	two
three	three
four	four
four	five
five	five
five	five

Result: one, two, four, five