knossos.wgl.dll-history — knossos 0.3.9

A history traversal structure built around a mutable unsynchronized doubly linked list which supports O(1) removal and insertion of nodes.

dll-history clj

(dll-history history)

Constructs a double-linked-list history from any other type of history. Returns a head node whose next entry is the first entry in the history.

lift! clj

(lift! entry)

Excises a node from the history by stitching together its next and previous nodes, and likewise for its match.

match clj

(match n)

next clj

(next n)

node-seq clj

(node-seq n)

op clj

(op n)

prev clj

(prev n)

setMatch clj

(setMatch n match)

setNext clj

(setNext n next)

setPrev clj

(setPrev n prev)

unlift! clj

(unlift! entry)

Adds a node back into the history by linking its next and previous back to where they should be, and the same for its match.