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/* ################################################################### */
/* Copyright 2015, Pierre Gentile (p.gen.progs@gmail.com) */
/* */
/* This Source Code Form is subject to the terms of the Mozilla Public */
/* License, v. 2.0. If a copy of the MPL was not distributed with this */
/* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
/* ################################################################### */
#ifndef INDEX_H
#define INDEX_H
/* *************************************** */
/* Ternary Search Tree specific structures */
/* *************************************** */
typedef struct tst_node_s tst_node_t;
typedef struct sub_tst_s sub_tst_t;
#if 0 /* here for coherency but not used. */
void tst_cleanup(tst_node_t * p);
#endif
tst_node_t *
tst_insert(tst_node_t * p, wchar_t * w, void * data);
void *
tst_prefix_search(tst_node_t * root, wchar_t * w, int (*callback)(void *));
void *
tst_search(tst_node_t * root, wchar_t * w);
int
tst_traverse(tst_node_t * p, int (*callback)(void *), int first_call);
int
tst_substring_traverse(tst_node_t * p, int (*callback)(void *), int first_call,
wchar_t w);
int
tst_fuzzy_traverse(tst_node_t * p, int (*callback)(void *), int first_call,
wchar_t w);
sub_tst_t *
sub_tst_new(void);
void
insert_sorted_index(long ** array, long * size, long * filled, long value);
void
insert_sorted_ptr(tst_node_t *** array, long * size, long * filled,
tst_node_t * ptr);
/* Ternary node structure */
/* """""""""""""""""""""" */
struct tst_node_s
{
wchar_t splitchar;
tst_node_t *lokid, *eqkid, *hikid;
void * data;
};
/* Structure to contain data and metadata attached to a fuzzy/substring. */
/* search step. */
/* """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" */
struct sub_tst_s
{
tst_node_t ** array;
long size;
long count;
};
#endif
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