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-rw-r--r--libibex/find.c162
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diff --git a/libibex/find.c b/libibex/find.c
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--- a/libibex/find.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- * Copyright (C) 2000 Helix Code, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public License
- * as published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with the Gnome Library; see the file COPYING.LIB. If not,
- * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* find.c: index file searching ops */
-
-#include <string.h>
-
-#include "ibex_internal.h"
-
-/**
- * ibex_find: search an ibex for a word
- * @ib: an ibex
- * @word: the word
- *
- * This routine searches an ibex for a word and returns a GPtrArray
- * containing the names of the files in the ibex that contain the word.
- * If no matches are found, it will return an empty array (not NULL).
- * The caller must free the array, but MUST NOT free or alter its
- * elements.
- *
- * Return value: the array of filenames containing @word
- **/
-GPtrArray *
-ibex_find (ibex *ib, char *word)
-{
- GPtrArray *refs, *ret;
- ibex_file *ibf;
- int i;
-
- ret = g_ptr_array_new ();
- refs = g_hash_table_lookup (ib->words, word);
- if (refs) {
- for (i = 0; i < refs->len; i++) {
- ibf = g_ptr_array_index (refs, i);
- g_ptr_array_add (ret, ibf->name);
- }
- }
- return ret;
-}
-
-/**
- * ibex_find_name: Check if a word occurs in a given file
- * @ib: an ibex
- * @name: a filename
- * @word: a word
- *
- * This checks if the given word occurs in the given file.
- *
- * Return value: TRUE or FALSE
- **/
-gboolean
-ibex_find_name (ibex *ib, char *name, char *word)
-{
- GPtrArray *refs;
- ibex_file *ibf;
- int i;
-
- refs = g_hash_table_lookup (ib->words, word);
- if (refs) {
- for (i = 0; i < refs->len; i++) {
- ibf = g_ptr_array_index (refs, i);
- if (!strcmp (ibf->name, name))
- return TRUE;
- }
- }
- return FALSE;
-}
-
-static gint
-build_array (gpointer key, gpointer value, gpointer data)
-{
- char *name = key;
- unsigned int count = GPOINTER_TO_UINT (value);
- GPtrArray *ret = data;
-
- if (count == 1)
- g_ptr_array_add (ret, name);
- return FALSE;
-}
-
-/**
- * ibex_find_all: Find files containing multiple words
- * @ib: an ibex
- * @words: a GPtrArray of words
- *
- * This works like ibex_find(), but returns an array of filenames
- * which contain all of the words in @words.
- *
- * Return value: an array of matches
- **/
-GPtrArray *
-ibex_find_all (ibex *ib, GPtrArray *words)
-{
- GTree *work;
- GPtrArray *wrefs, *ret;
- int i, j, count;
- char *word;
- ibex_file *ibf;
-
- if (words->len == 0)
- return g_ptr_array_new ();
- else if (words->len == 1)
- return ibex_find (ib, g_ptr_array_index (words, 0));
-
- work = g_tree_new (strcmp);
- for (i = 0; i < words->len; i++) {
- word = g_ptr_array_index (words, i);
- wrefs = g_hash_table_lookup (ib->words, word);
- if (!wrefs) {
- /* One of the words isn't even in the index. */
- g_tree_destroy (work);
- return g_ptr_array_new ();
- }
-
- if (i == 0) {
- /* Copy the references into a tree, using the
- * filenames as keys and the size of words as
- * the value.
- */
- for (j = 0; j < wrefs->len; j++) {
- ibf = g_ptr_array_index (wrefs, j);
- g_tree_insert (work, ibf->name,
- GUINT_TO_POINTER (words->len));
- }
- } else {
- /* Increment the counts in the working tree
- * for the references for this word.
- */
- for (j = 0; j < wrefs->len; j++) {
- ibf = g_ptr_array_index (wrefs, j);
- count = GPOINTER_TO_UINT (g_tree_lookup (work, ibf->name));
- if (count) {
- g_tree_insert (work, ibf->name,
- GUINT_TO_POINTER (count - 1));
- }
- }
- }
- }
-
- /* Build an array with the refs that contain all the words. */
- ret = g_ptr_array_new ();
- g_tree_traverse (work, build_array, G_IN_ORDER, ret);
- g_tree_destroy (work);
- return ret;
-}