package coq

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package coq
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A trie is a generalization of the map data structure where the keys are themselves lists.

type label

Keys of the trie structure are label list.

type data

Data on nodes of tries are finite sets of data.

type t

The trie data structure. Essentially a finite map with keys label list and content data Set.t.

val empty : t

The empty trie.

val get : t -> data

Get the data at the current node.

val next : t -> label -> t

next t lbl returns the subtrie of t pointed by lbl.

val labels : t -> label list

Get the list of defined labels at the current node.

val add : label list -> data -> t -> t

add t path v adds v at path path in t.

val remove : label list -> data -> t -> t

remove t path v removes v from path path in t.

val iter : (label list -> data -> unit) -> t -> unit

Apply a function to all contents.