1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/* -*- 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_contains_name:
* @ib:
* @name:
*
* Returns #TRUE if the ibex @ib has any index entry for
* the key @name.
*
* Return value:
**/
gboolean
ibex_contains_name(ibex *ib, char *name)
{
return g_tree_lookup(ib->files, name) != NULL;
}
/**
* 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 ((GCompareFunc) 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;
}
static void
ibex_dump_foo(char *key, GPtrArray *refs, void *data)
{
int i;
g_print("%s: ", key);
for (i=0;i<refs->len;i++) {
ibex_file *ibf = g_ptr_array_index (refs, i);
g_print("%c%s", ibf->index==-1?'-':' ', ibf->name);
}
g_print("\n");
}
/* debug function to dump the tree, in key order */
void
ibex_dump_all (ibex *ib)
{
g_hash_table_foreach(ib->words, (GHFunc) ibex_dump_foo, 0);
}
|
