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yap-6.3/library/tries.yap

55 lines
1.2 KiB
Prolog

/****************************************
File: tries.yap
Author: Ricardo Rocha
Comments: Tries module for Yap Prolog
version: $ID$
****************************************/
:- module(tries, [
trie_open/1,
trie_close/1,
trie_close_all/0,
trie_empty/1,
trie_mode/1,
trie_put_entry/3,
trie_check_entry/3,
trie_get_entry/2,
trie_get_first_entry/2,
trie_get_last_entry/2,
trie_traverse/2,
trie_traverse/3,
trie_remove_entry/1,
trie_remove_subtree/1,
trie_join/2,
trie_intersect/2,
trie_count_join/3,
trie_count_intersect/3,
trie_dup/2,
trie_save/2,
trie_load/2,
trie_stats/4,
trie_max_stats/4,
trie_usage/4,
trie_print/1,
open_trie/1,
close_trie/1,
close_all_tries/0,
put_trie_entry/4,
get_trie_entry/3,
remove_trie_entry/1,
print_trie/1
]).
:- load_foreign_files([tries], [], init_tries).
trie_empty(Trie) :-
trie_usage(Trie, 0, 0, _).
trie_dup(Trie, CopyTrie) :-
trie_open(CopyTrie),
trie_join(CopyTrie, Trie).
trie_traverse(Trie, Ref) :-
trie_get_first_entry(Trie, InitRef),
(Ref = InitRef ; trie_traverse(Trie, InitRef, Ref)).