e/Zipper datastructure

Information
has gloss	eng: A zipper is a technique of representing an aggregate data structure so that it is convenient for writing programs that traverse the structure arbitrarily and update its contents, especially in purely functional programming languages. The zipper was described by Gérard Huet in 1997. It includes and generalizes the gap buffer technique sometimes used with arrays.
lexicalization	eng: Zipper data structure
lexicalization	eng: Zipper datastructure
lexicalization	eng: zipper
instance of	(noun) (computer science) the organization of data (and its storage allocations in a computer) data structure