lib.php 44 KB
Newer Older
Martyn Smith's avatar
Martyn Smith committed
1
2
<?php
/**
Francois Marier's avatar
Francois Marier committed
3
 * Mahara: Electronic portfolio, weblog, resume builder and social networking
4
 * Copyright (C) 2006-2008 Catalyst IT Ltd (http://www.catalyst.net.nz)
Martyn Smith's avatar
Martyn Smith committed
5
 *
Francois Marier's avatar
Francois Marier committed
6
7
8
9
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
Martyn Smith's avatar
Martyn Smith committed
10
 *
Francois Marier's avatar
Francois Marier committed
11
12
13
14
 * This program 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 General Public License for more details.
Martyn Smith's avatar
Martyn Smith committed
15
 *
Francois Marier's avatar
Francois Marier committed
16
17
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
Martyn Smith's avatar
Martyn Smith committed
18
19
20
 *
 * @package    mahara
 * @subpackage search-internal
21
 * @author     Catalyst IT Ltd
Martyn Smith's avatar
Martyn Smith committed
22
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
23
 * @copyright  (C) 2006-2008 Catalyst IT Ltd http://catalyst.net.nz
Martyn Smith's avatar
Martyn Smith committed
24
25
26
27
28
29
 *
 */

defined('INTERNAL') || die();

/**
30
 * The internal search plugin which searches against the
Martyn Smith's avatar
Martyn Smith committed
31
32
33
34
 * Mahara database.
 */
class PluginSearchInternal extends PluginSearch {

35
36
37
38
    public static function can_be_disabled() {
        return false;
    }

Martyn Smith's avatar
Martyn Smith committed
39
40
41
    /**
     * Implement user searching with SQL
     *
42
43
     * NOTE: user with ID zero should never be returned
     *
Martyn Smith's avatar
Martyn Smith committed
44
45
46
     * @param string  The query string
     * @param integer How many results to return
     * @param integer What result to start at (0 == first result)
47
48
49
50
     * @param data    Filters the users searched by
     *                can contain:
     *             'group' => integer, // only users in this group
     *             'owner' => boolean  // include the group ownwer (only if group is set)
51
     *             'exclude'=> int     // excludes a user
Martyn Smith's avatar
Martyn Smith committed
52
53
54
55
56
     * @return array  A data structure containing results looking like ...
     *         $results = array(
     *               count   => integer, // total number of results
     *               limit   => integer, // how many results are returned
     *               offset  => integer, // starting from which result
57
     *               data    => array(   // the result records
Martyn Smith's avatar
Martyn Smith committed
58
     *                   array(
59
60
61
62
63
64
65
     *                       id            => integer,
     *                       username      => string,
     *                       institution   => string,
     *                       firstname     => string,
     *                       lastname      => string,
     *                       preferredname => string,
     *                       email         => string,
Martyn Smith's avatar
Martyn Smith committed
66
67
     *                   ),
     *                   array(
68
69
70
71
72
73
74
     *                       id            => integer,
     *                       username      => string,
     *                       institution   => string,
     *                       firstname     => string,
     *                       lastname      => string,
     *                       preferredname => string,
     *                       email         => string,
Martyn Smith's avatar
Martyn Smith committed
75
76
77
78
79
     *                   ),
     *                   array(...),
     *               ),
     *           );
     */
80
    public static function search_user($query_string, $limit, $offset = 0, $data=array()) {
81
82
        safe_require('artefact', 'internal');
        $publicfields = array_keys(ArtefactTypeProfile::get_public_fields());
83
84
85
        if (empty($publicfields)) {
            $publicfields = array('preferredname');
        }
86
        if (is_postgres()) {
87
            return self::search_user_pg($query_string, $limit, $offset, $data, $publicfields);
88
89
        } 
        else if (is_mysql()) {
90
            return self::search_user_my($query_string, $limit, $offset, $data, $publicfields);
91
92
        }
        else {
93
94
95
96
            throw new SQLException('search_user() is not implemented for your database engine (' . get_config('dbtype') . ')');
        }
    }

97
    public static function search_user_pg($query_string, $limit, $offset, $data, $publicfields) {
98
        $fieldlist = "('" . join("','", $publicfields) . "')";
99
        $sql = 'SELECT
100
101
                COUNT(DISTINCT u.id)
            FROM
102
103
                {usr} u
                LEFT JOIN {artefact} a ON u.id=a.owner
104
105
                ';
        if (isset($data['group'])) {
106
107
108
            $groupadminsql = '';
            if (isset($data['includeadmins']) and !$data['includeadmins']) {
                $groupadminsql = " AND gm.role != 'admin'";
109
            }
110
            $sql .= 'INNER JOIN {group_member} gm ON (gm.member = u.id AND gm.group = ' . (int)$data['group'] . $groupadminsql . ")\n";
111
        }
112
113
        $querydata = split(' ', preg_replace('/\s\s+/', ' ', strtolower(trim($query_string))));
        $namesql = '(
114
115
116
117
                        u.preferredname ILIKE \'%\' || ? || \'%\'
                    )
                    OR (
                        (u.preferredname IS NULL OR u.preferredname = \'\')
118
119
120
121
122
123
124
125
                        AND (
                            u.firstname ILIKE \'%\' || ? || \'%\'
                            OR u.lastname ILIKE \'%\' || ? || \'%\'
                        )
                    )
                    OR (
                        a.artefacttype IN ' . $fieldlist . '
                        AND ( a.title ILIKE \'%\' || ? || \'%\')
126
127
128
129
130
131
132
133
134
135
                    )';
        $namesql = join(' OR ', array_fill(0, count($querydata), $namesql));
        $values = array();
        foreach ($querydata as $w) {
            $values = array_pad($values, count($values) + 4, $w);
        }

        $sql .= 'WHERE
                u.id <> 0 AND u.active = 1 AND u.deleted = 0
                AND ( ' . $namesql . '
136
                )
137
                ' . (isset($data['exclude']) ? 'AND u.id != ' . $data['exclude'] : '') . '
138
            ';
139
        $count = get_field_sql($sql, $values);
140
141

        if ($count > 0) {
142
            $sql = 'SELECT DISTINCT ON (u.firstname, u.lastname, u.id)
143
                    u.id, u.username, u.firstname, u.lastname, u.preferredname, u.email, u.staff
144
145
                FROM {artefact} a
                    INNER JOIN {usr} u ON u.id = a.owner
146
147
                ';
            if (isset($data['group'])) {
148
149
150
151
152
                $groupadminsql = '';
                if (isset($data['includeadmins']) and !$data['includeadmins']) {
                    $groupadminsql = " AND gm.role != 'admin'";
                }
                $sql .= 'INNER JOIN {group_member} gm ON (gm.member = u.id AND gm.group = ' . (int)$data['group'] . $groupadminsql . ")\n";
153
154
            }
            $sql .= 'WHERE
155
                    u.id <> 0 AND u.active = 1 AND u.deleted = 0
156
                    AND (' . $namesql . '
Martyn Smith's avatar
Martyn Smith committed
157
                    )
158
                    ' . (isset($data['exclude']) ? 'AND u.id != ' . $data['exclude'] : '') . '
159
                ORDER BY u.firstname, u.lastname, u.id';
160
            $data = get_records_sql_array($sql, $values, $offset, $limit);
161

162
163
164
            if ($data) {
                foreach ($data as &$item) {
                    $item = (array)$item;
165
                }
166
            }
Martyn Smith's avatar
Martyn Smith committed
167
168
        }
        else {
169
            $data = false;
Nigel McNie's avatar
Nigel McNie committed
170
171
172
173
174
175
176
177
178
        }

        return array(
            'count'   => $count,
            'limit'   => $limit,
            'offset'  => $offset,
            'data'    => $data,
        );
    }
179

180
    public static function search_user_my($query_string, $limit, $offset, $data, $publicfields) {
181
182
        $fieldlist = "('" . join("','", $publicfields) . "')";

183
        $sql = 'SELECT
184
                COUNT(DISTINCT u.id)
185
            FROM
186
187
                {usr} u
                LEFT JOIN {artefact} a ON u.id=a.owner
188
189
190
191
192
193
194
195
196
                ';
        if (isset($data['group'])) {
            $sql .= 'INNER JOIN {group_member} gm ON (gm.member = u.id AND gm.group = ' . (int)$data['group'] . ')
                ';
            if (isset($data['owner']) && !$data['owner']) {
                $sql .= 'INNER JOIN {group} g ON (g.id = gm.group AND g.owner != u.id)
                    ';
            }
        }
197
198
        $querydata = split(' ', preg_replace('/\s\s+/', ' ', strtolower(trim($query_string))));
        $namesql = '(
199
200
201
202
                        u.preferredname LIKE \'%\' || ? || \'%\'
                    )
                    OR (
                        (u.preferredname IS NULL OR u.preferredname = \'\')
203
204
205
206
207
208
209
210
                        AND (
                            u.firstname LIKE \'%\' || ? || \'%\'
                            OR u.lastname LIKE \'%\' || ? || \'%\'
                        )
                    )
                    OR (
                        a.artefacttype IN ' . $fieldlist . '
                        AND ( a.title LIKE \'%\' || ? || \'%\')
211
212
213
214
215
216
217
218
219
220
                    )';
        $namesql = join(' OR ', array_fill(0, count($querydata), $namesql));
        $values = array();
        foreach ($querydata as $w) {
            $values = array_pad($values, count($values) + 4, $w);
        }

        $sql .= 'WHERE
                u.id <> 0 AND u.active = 1 AND u.deleted = 0
                AND (' . $namesql . '
221
                )
222
                ' . (isset($data['exclude']) ? 'AND u.id != ' . $data['exclude'] : '') . '
223
            ';
224

225
        $count = get_field_sql($sql, $values);
226
        if ($count > 0) {
227
228
229
230
231
            // @todo This is quite possibly not correct. See the postgres 
            // query. It should be DISTINCT ON the fields as specified by the 
            // postgres query. There is a workaround by using SELECT * followed 
            // by GROUP BY 1, 2, 3, but it's not really valid SQL. The other 
            // way is to rewrite the query using a self join on the usr table.
232
            $sql = 'SELECT DISTINCT
233
                    u.id, u.username, u.firstname, u.lastname, u.preferredname, u.email, u.staff
234
235
                FROM {artefact} a
                    INNER JOIN {usr} u ON u.id = a.owner
236
237
238
239
240
241
242
243
244
245
                    ';
            if (isset($data['group'])) {
                $sql .= 'INNER JOIN {group_member} gm ON (gm.member = u.id AND gm.group = ' . (int)$data['group'] . ')
                    ';
                if (isset($data['owner']) && !$data['owner']) {
                    $sql .= 'INNER JOIN {group} g ON (g.id = gm.group AND g.owner != u.id)
                        ';
                    }
            }
            $sql .= 'WHERE
246
                    u.id <> 0 AND u.active = 1 AND u.deleted = 0
247
                    AND ( ' . $namesql . '
248
                    )
249
                    ' . (isset($data['exclude']) ? 'AND u.id != ' . $data['exclude'] : '') . '
250
                ORDER BY u.firstname, u.lastname, u.id';
251
            $data = get_records_sql_array($sql, $values, $offset, $limit);
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
            if ($data) {
                foreach ($data as &$item) {
                    $item = (array)$item;
                }
            }
        }
        else {
            $data = false;
        }

        return array(
            'count'   => $count,
            'limit'   => $limit,
            'offset'  => $offset,
            'data'    => $data,
        );
    }
Nigel McNie's avatar
Nigel McNie committed
269
    
270

271
272
    private static function match_expression($op, $string, &$values, $ilike) {
        switch ($op) {
273
274
        case 'starts':
            $values[] = $string;
275
            return ' ' . $ilike . ' ? || \'%\'';
276
277
278
279
280
        case 'equals':
            $values[] = $string;
            return ' = ? ';
        case 'contains':
            $values[] = $string;
281
            return ' ' . $ilike . ' \'%\' || ? || \'%\'';
282
283
284
285
286
287
        case 'in':
            return ' IN (' . join(',', array_map('db_quote',$string)) . ')';
        }
    }


288
    public static function admin_search_user($queries, $constraints, $offset, $limit, 
289
                                             $sortfield, $sortdir) {
290
        $sort = $sortfield . ' ' . strtoupper($sortdir);
291
        $where = 'WHERE u.id <> 0 AND u.deleted = 0';
292
293
        $values = array();

294
295
296
        // Get the correct keyword for case insensitive LIKE
        $ilike = db_ilike();

297
        // Only handle OR/AND expressions at the top level.  Eventually we may need subexpressions.
298

Richard Mansfield's avatar
Richard Mansfield committed
299
        if (!empty($queries)) {
300
301
            $where .= ' AND ( ';
            $str = array();
Richard Mansfield's avatar
Richard Mansfield committed
302
            foreach ($queries as $f) {
303
                $str[] = 'u.' . $f['field'] 
304
                    . PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike);
305
306
307
308
            }
            $where .= join(' OR ', $str) . ') ';
        } 

309
310
311
        // @todo: Institution stuff is messy and will probably need to
        // be rewritten when we get multiple institutions per user

312
        $requested = false;
313
        $institutionsearch = '';
Richard Mansfield's avatar
Richard Mansfield committed
314
315
        if (!empty($constraints)) {
            foreach ($constraints as $f) {
316
317
318
319
320
321
                if (strpos($f['field'], 'institution') === 0) {
                    $institutionsearch .= ' 
                        LEFT OUTER JOIN {usr_institution} i ON i.usr = u.id ';
                    if (strpos($f['field'], 'requested') > 0) {
                        $institutionsearch .= ' 
                            LEFT OUTER JOIN {usr_institution_request} ir ON ir.usr = u.id ';
322
                    }
323
324
                    if ($f['field'] == 'institution_requested') {
                        $where .= ' AND ( i.institution ' .
325
                            PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike) .
326
                            ' OR ir.institution ' .
327
                            PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike) . ')';
328
                        $requested = true;
329
330
331
332
333
                    } else {
                        if ($f['string'] == 'mahara') {
                            $where .= ' AND i.institution IS NULL';
                        } else {
                            $where .= ' AND i.institution'
334
                                . PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike);
335
                        }
336
                    }
337
                } else {
338
                    $where .= ' AND u.' . $f['field'] 
339
                        . PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike);
340
                }
341
            }
342
        }
343
        if (strpos($sort, 'institution') === 0) {
344
            $sort = 'i.' . $sort;
345
346
            if ($institutionsearch == '') {
                $institutionsearch = ' LEFT OUTER JOIN {usr_institution} i ON i.usr = u.id ';
347
            }
348
349
        }

350
        $count = get_field_sql('SELECT COUNT(*) FROM {usr} u ' . $institutionsearch . $where, $values);
351
352

        if ($count > 0) {
353
            $data = get_records_sql_assoc('
354
                SELECT 
355
                    u.id, u.firstname, u.lastname, u.username, u.email, u.staff,
356
                    u.active, NOT u.suspendedcusr IS NULL as suspended
357
                FROM
358
                    {usr} u ' . $institutionsearch . $where . '
359
                ORDER BY ' . $sort,
360
                $values,
Richard Mansfield's avatar
Richard Mansfield committed
361
362
                $offset,
                $limit);
363
364

            if ($data) {
365
366
367
368
369
370
371
372
                $inst = get_records_select_array('usr_institution', 
                                                 'usr IN (' . join(',', array_keys($data)) . ')',
                                                 null, '', 'usr,institution');
                if ($inst) {
                    foreach ($inst as $i) {
                        $data[$i->usr]->institutions[] = $i->institution;
                    }
                }
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
                if ($requested) {
                    $inst = get_records_select_array('usr_institution_request', 
                                                     'usr IN (' . join(',', array_keys($data)) . ')',
                                                     null, '', 'usr,institution,confirmedusr,confirmedinstitution');
                    if ($inst) {
                        foreach ($inst as $i) {
                            if ($i->confirmedusr) {
                                $data[$i->usr]->requested[] = $i->institution;
                            }
                            if ($i->confirmedinstitution) {
                                $data[$i->usr]->invitedby[] = $i->institution;
                            }
                        }
                    }
                }
388
389
390
                foreach ($data as &$item) {
                    $item = (array)$item;
                }
391
                $data = array_values($data);
392
393
394
395
396
397
398
399
            }
        }
        else {
            $data = false;
        }

        return array(
            'count'   => $count,
Richard Mansfield's avatar
Richard Mansfield committed
400
401
            'limit'   => $limit,
            'offset'  => $offset,
402
403
404
405
            'data'    => $data,
        );
    }

406

407
    public static function group_search_user($group, $queries, $constraints, $offset, $limit, $membershiptype) {
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
        $where = 'WHERE gm.group = ?';
        $values = array($group);

        // Get the correct keyword for case insensitive LIKE
        $ilike = db_ilike();

        // Only handle OR/AND expressions at the top level.  Eventually we may need subexpressions.

        if (!empty($queries)) {
            $where .= ' AND ( ';
            $str = array();
            foreach ($queries as $f) {
                $str[] = 'u.' . $f['field'] 
                    . PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike);
            }
            $where .= join(' OR ', $str) . ') ';
        }

426
427
428
429
430
431
432
433
434
435
436
437
        $group_member = 'group_member';
        if (!empty($membershiptype) && in_array($membershiptype, array('request', 'invite'))) {
            $group_member .= '_' . $membershiptype;
            $gm_role = '';
            $gm_role_order = '';
        }
        else {
            $gm_role = ', gm.role';
            $gm_role_order = "gm.role = 'admin' DESC, ";
        }

        $count = get_field_sql('SELECT COUNT(*) FROM {usr} u INNER JOIN {' . $group_member . '} gm ON (gm.member = u.id) ' . $where, $values);
438
439
440
441

        if ($count > 0) {
            $data = get_records_sql_assoc('
                SELECT
442
                    u.id, u.firstname, u.lastname, u.username, u.email, u.staff, ' . db_format_tsfield('gm.ctime', 'jointime') . $gm_role . '
443
444
                FROM
                    {usr} u
445
446
                INNER JOIN {' . $group_member . '} gm ON (gm.member = u.id) ' . $where . '
                ORDER BY ' . $gm_role_order . 'gm.ctime, u.firstname, u.lastname, u.id',
447
448
449
450
451
452
453
454
455
456
457
458
                $values,
                $offset,
                $limit);

            if ($data) {
                foreach ($data as &$item) {
                    $item = (array)$item;
                }
                $data = array_values($data);
            }
        }
        else {
459
            $data = array();
460
461
462
463
464
465
466
467
468
469
        }

        return array(
            'count'   => $count,
            'limit'   => $limit,
            'offset'  => $offset,
            'data'    => $data,
        );
    }

470
471
472
473
474
475
476
477
478
479

    public static function institutional_admin_search_user($query, $institution, $limit) {
        $sql = '
            FROM {usr} u ';

        $where = '
            WHERE u.id <> 0 AND u.deleted = 0 ';

        $values = array();
        if (!empty($query)) {
480
481
482
483
484
485
486
            $query = preg_replace('/\s\s+/', ' ', $query);
            $words = explode(' ', $query);
            foreach ($words as &$word) {
                $values[] = $word;
                $values[] = $word;
                $word = 'u.firstname ' . db_ilike() . ' \'%\' || ? || \'%\' OR u.lastname ' . db_ilike() . ' \'%\' || ? || \'%\'';
            }
487
            $where .= '
488
                AND (' . join(' OR ', $words) . ') ';
489
490
        }

491
        $studentid = '';
492
493
494
495
496
497
        if (!is_null($institution->member)) {
            $sql .= '
                LEFT OUTER JOIN {usr_institution} member ON (member.usr = u.id
                    AND member.institution = ' . db_quote($institution->name) . ')';
            $where .= '
                AND ' . ($institution->member ? ' NOT ' : '') . ' member.usr IS NULL';
498
            $studentid = ', member.studentid';
499
        }
500
        if (!is_null($institution->requested) || !is_null($institution->invitedby)) {
501
502
503
504
505
506
507
508
509
            $sql .= '
                LEFT OUTER JOIN {usr_institution_request} req ON (req.usr = u.id
                    AND req.institution = ' . db_quote($institution->name) . ')';
            if (!is_null($institution->requested)) {
                if ($institution->requested == 1) {
                    $where .= ' AND req.confirmedusr = 1';
                } else {
                    $where .= ' AND (req.confirmedusr = 0 OR req.confirmedusr IS NULL)';
                }
510
                $studentid = ', req.studentid';
511
            }
512
            if (!is_null($institution->invitedby)) {
513
514
515
516
517
518
519
520
521
522
523
524
525
526
                if ($institution->requested == 1) {
                    $where .= ' AND req.confirmedinstitution = 1';
                } else {
                    $where .= ' AND (req.confirmedinstitution = 0 OR req.confirmedinstitution IS NULL)';
                }
            }
        }

        $count = get_field_sql('SELECT COUNT(*) ' . $sql . $where, $values);

        if ($count > 0) {
            $data = get_records_sql_array('
                SELECT 
                    u.id, u.firstname, u.lastname, u.username, u.preferredname, 
527
                    u.admin, u.staff' . $studentid . $sql . $where . '
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
                ORDER BY u.firstname ASC',
                $values,
                0,
                $limit);
            foreach ($data as &$item) {
                $item = (array)$item;
            }
        }
        else {
            $data = false;
        }

        return array(
            'count'   => $count,
            'limit'   => $limit,
            'offset'  => 0,
            'data'    => $data,
        );
    }





552
553
554
555
556
557
    /**
     * Implement group searching with SQL
     *
     * @param string  The query string
     * @param integer How many results to return
     * @param integer What result to start at (0 == first result)
558
     * @param string  Which groups to search (all, member, notmember)
559
560
561
562
563
564
565
     * @return array  A data structure containing results looking like ...
     *         $results = array(
     *               count   => integer, // total number of results
     *               limit   => integer, // how many results are returned
     *               offset  => integer, // starting from which result
     *               data    => array(   // the result records
     *                   array(
Nigel McNie's avatar
Nigel McNie committed
566
     *                       id            => integer,
567
568
569
570
571
572
     *                       name          => string,
     *                       description   => string,
     *                       jointype      => string,
     *                       owner         => string,
     *                       ctime         => string,
     *                       mtime         => string,
Nigel McNie's avatar
Nigel McNie committed
573
574
575
     *                   ),
     *                   array(
     *                       id            => integer,
576
577
578
579
580
581
     *                       name          => string,
     *                       description   => string,
     *                       jointype      => string,
     *                       owner         => string,
     *                       ctime         => string,
     *                       mtime         => string,
Nigel McNie's avatar
Nigel McNie committed
582
583
584
585
586
     *                   ),
     *                   array(...),
     *               ),
     *           );
     */
587
    public static function search_group($query_string, $limit, $offset=0, $type='member') {
588
        if (is_postgres()) {
589
            return self::search_group_pg($query_string, $limit, $offset, $type);
590
591
        } 
        else if (is_mysql()) {
592
            return self::search_group_my($query_string, $limit, $offset, $type);
593
594
        } 
        else {
595
            throw new SQLException('search_group() is not implemented for your database engine (' . get_config('dbtype') . ')');
Martyn Smith's avatar
Martyn Smith committed
596
        }
597
598
    }

599
    public static function search_group_pg($query_string, $limit, $offset, $type) {
600
601
602
        global $USER;
        $sql = "
            SELECT
603
                id, name, description, grouptype, jointype, ctime, mtime
604
            FROM
605
                {group}
606
607
608
            WHERE (
                name ILIKE '%' || ? || '%' 
                OR description ILIKE '%' || ? || '%' 
609
610
            ) AND deleted = ? ";
        $values = array($query_string, $query_string, 0);
611
612
        if ($type == 'member') {
            $sql .=  'AND (
613
                id IN (
614
                    SELECT "group" FROM {group_member} WHERE member = ?
615
                )
616
            )';
617
618
            $values[] = $USER->get('id');
        }
619
620
        else if ($type == 'notmember') {
            $sql .=  'AND (
621
                id NOT IN (
622
623
624
625
626
627
                    SELECT "group" FROM {group_member} WHERE member = ?
                )
            )';
            $values[] = $USER->get('id');
        }
        $sql .= 'ORDER BY name';
628
629
630
631
632
633
        $data = get_records_sql_array($sql, $values, $offset, $limit);

        $sql = "
            SELECT
                COUNT(*)
            FROM
634
                {group} u
635
636
637
            WHERE (
                name ILIKE '%' || ? || '%' 
                OR description ILIKE '%' || ? || '%' 
638
            ) AND deleted = ? ";
639
640
        if ($type == 'member') {
            $sql .= 'AND (
641
                    id IN (
642
                        SELECT "group" FROM {group_member} WHERE member = ?
643
644
                    )
                )
645
            ';
646
        }
647
648
        else if ($type == 'notmember') {
            $sql .= 'AND (
649
                    id NOT IN (
650
651
652
653
654
                        SELECT "group" FROM {group_member} WHERE member = ?
                    )
                )
            ';
        }
655
        $count = get_field_sql($sql, $values);
656
657
658
659
660
661
662
663
664

        return array(
            'count'   => $count,
            'limit'   => $limit,
            'offset'  => $offset,
            'data'    => $data,
        );
    }

665
    public static function search_group_my($query_string, $limit, $offset, $type) {
666
667
668
        global $USER;
        $sql = "
            SELECT
669
                id, name, description, grouptype, jointype, ctime, mtime
670
            FROM
671
                {group}
672
673
674
            WHERE (
                name LIKE '%' || ? || '%' 
                OR description LIKE '%' || ? || '%' 
675
676
            ) AND deleted = ? ";
        $values = array($query_string, $query_string, 0);
677
        if ($type == 'member') {
678
            $sql .=  'AND (
679
                id IN (
680
                    SELECT gm.group FROM {group_member} gm WHERE gm.member = ?
681
                )
682
            )';
683
684
            $values[] = $USER->get('id');
        }
685
686
        else if ($type == 'notmember') {
            $sql .=  "AND (
687
                id NOT IN (
688
                    SELECT gm.group FROM {group_member} gm WHERE gm.member = ?
689
690
691
692
693
                )
            )";
            $values[] = $USER->get('id');
        }
        $sql .= 'ORDER BY name';
694
695
696
697
698
699
        $data = get_records_sql_array($sql, $values, $offset, $limit);

        $sql = "
            SELECT
                COUNT(*)
            FROM
700
                {group} u
701
702
703
            WHERE (
                name LIKE '%' || ? || '%' 
                OR description LIKE '%' || ? || '%' 
704
            ) AND deleted = ? ";
705
        if ($type == 'member') {
706
            $sql .= 'AND (
707
                    id IN (
708
                        SELECT gm.group FROM {group_member} gm WHERE gm.member = ?
709
710
                    )
                )
711
            ';
712
        }
713
714
        else if ($type == 'notmember') {
            $sql .= "AND (
715
                    id NOT IN (
716
                        SELECT gm.group FROM {group_member} gm WHERE gm.member = ?
717
718
                    )
                )
719
720
721
            ";
        }
        $count = get_field_sql($sql, $values);
Martyn Smith's avatar
Martyn Smith committed
722
723
724
725
726

        return array(
            'count'   => $count,
            'limit'   => $limit,
            'offset'  => $offset,
727
            'data'    => $data,
Martyn Smith's avatar
Martyn Smith committed
728
729
        );
    }
Martyn Smith's avatar
Martyn Smith committed
730
731
732
733
734
735
736
737
738
739
740

    /**
     * Given a query string and limits, return an array of matching objects
     * owned by the current user.  Possible return types are ...
     *   - artefact
     *   - view
     *
     * Implementations of this search should search across tags for artefacts
     * and views at a minimum. Ideally the search would also index
     * title/description and other metadata for these objects.
     *
741
742
743
     * NOTE: This implementation of internal search only does artefacts, and
     * badly at that. See the bug tracker for more information.
     *
Martyn Smith's avatar
Martyn Smith committed
744
745
746
747
748
749
     * @param string  The query string
     * @param integer How many results to return
     * @param integer What result to start at (0 == first result)
     * @param string  Type to search for (either 'all' or one of the types above).
     * 
     */
750
751
    public static function self_search($querystring, $limit, $offset, $type = 'all') {
        global $USER;
752
753
754
755
        if (trim($querystring) == '') {
            return false;
        }

756
757
758
759
760
        // Tokenise the search
        $querydata = self::search_parse_query($querystring);

        $sql = "
            SELECT
761
                a.id, a.artefacttype, a.title, a.description
762
            FROM
763
                {artefact} a
764
            LEFT JOIN {artefact_tag} at ON (at.artefact = a.id)
765
            WHERE
766
767
768
769
770
771
                a.owner = ?
            AND (
                ($querydata[0])
                OR
                (LOWER(at.tag) = ?)
            )";
772
773
774
775
        $count_sql = "
            SELECT
                COUNT(*)
            FROM
776
                {artefact} a
777
            LEFT JOIN {artefact_tag} at ON (at.artefact = a.id)
778
            WHERE
779
780
781
782
783
784
                a.owner = ?
            AND (
                ($querydata[0])
                OR
                (LOWER(at.tag) = ?)
            )";
785
        array_unshift($querydata[1], $USER->get('id'));
786
787
        array_push($querydata[1], $querystring);

788
789
790
791
792
793
794
        $results = array(
            'data'   => get_records_sql_array($sql, $querydata[1], $offset, $limit),
            'offset' => $offset,
            'limit'  => $limit,
            'count'  => get_field_sql($count_sql, $querydata[1])
        );

795
796
797
798
799
800
801
        if ($results['data']) {
            foreach ($results['data'] as &$result) {
                $newresult = array();
                foreach ($result as $key => &$value) {
                    if ($key == 'id' || $key == 'artefacttype' || $key == 'title' || $key == 'description') {
                        $newresult[$key] = $value;
                    }
802
                }
803
804
805
806
807
808
809
810
811
812
                $newresult['type'] = 'artefact';
                $artefactplugin = get_field('artefact_installed_type', 'plugin', 'name', $newresult['artefacttype']);
                if ($artefactplugin == 'internal') {
                    $newresult['summary'] = $newresult['title'];
                    $newresult['title'] = get_string($newresult['artefacttype'], 'artefact.' . $artefactplugin);
                }
                else {
                    $newresult['summary'] = $newresult['description'];
                }
                $result = $newresult;
813
            }
814
815

            self::self_search_make_links($results);
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
        }

        return $results;
    }


    /**
     * Parses a query string into SQL fragments for searching. Supports 
     * phrases, AND/OR etc.
     *
     * Lifted from drupal 5.1, (C) 2007 Drupal
     *
     * This function comes from Drupal's search module, with some small changes.
     */
    private static function search_parse_query($text) {
        $keys = array('positive' => array(), 'negative' => array());

        // Tokenize query string
        preg_match_all('/ (-?)("[^"]+"|[^" ]+)/i', ' '. $text, $matches, PREG_SET_ORDER);

        if (count($matches) < 1) {
          return NULL;
        }

        // Classify tokens
        $or = FALSE;
        foreach ($matches as $match) {
          $phrase = FALSE;
          // Strip off phrase quotes
          if ($match[2]{0} == '"') {
            $match[2] = substr($match[2], 1, -1);
            $phrase = TRUE;
          }
          // Simplify keyword according to indexing rules and external preprocessors
          $words = self::search_simplify($match[2]);
          // Re-explode in case simplification added more words, except when matching a phrase
          $words = $phrase ? array($words) : preg_split('/ /', $words, -1, PREG_SPLIT_NO_EMPTY);
          // Negative matches
          if ($match[1] == '-') {
            $keys['negative'] = array_merge($keys['negative'], $words);
          }
          // OR operator: instead of a single keyword, we store an array of all
          // OR'd keywords.
          elseif ($match[2] == 'OR' && count($keys['positive'])) {
            $last = array_pop($keys['positive']);
            // Starting a new OR?
            if (!is_array($last)) {
              $last = array($last);
            }
            $keys['positive'][] = $last;
            $or = TRUE;
            continue;
          }
          // Plain keyword
          else {
            if ($or) {
              // Add to last element (which is an array)
              $keys['positive'][count($keys['positive']) - 1] = array_merge($keys['positive'][count($keys['positive']) - 1], $words);
            }
            else {
              $keys['positive'] = array_merge($keys['positive'], $words);
            }
          }
          $or = FALSE;
        }

        // Convert keywords into SQL statements.
        $query = array();
        //$query2 = array();
        $arguments = array();
        $arguments2 = array();
        //$matches = 0; 
        // Positive matches
        foreach ($keys['positive'] as $key) {
          // Group of ORed terms
          if (is_array($key) && count($key)) {
            $queryor = array();
            $any = FALSE;
            foreach ($key as $or) {
              list($q, $count) = self::_search_parse_query($or, $arguments2);
              $any |= $count;
              if ($q) {
                $queryor[] = $q;
                $arguments[] = $or;
                $arguments[] = $or;
              }
            }

            if (count($queryor)) {
              $query[] = '('. implode(' OR ', $queryor) .')';
              // A group of OR keywords only needs to match once
              //$matches += ($any > 0);
            }
          }
          // Single ANDed term
          else {
            list($q, $count) = self::_search_parse_query($key, $arguments2);
            if ($q) {
              $query[] = $q;
              $arguments[] = $key;
              $arguments[] = $key;
              // Each AND keyword needs to match at least once
              //$matches += $count;
            }
          }
        }
        // Negative matches
        foreach ($keys['negative'] as $key) {
          list($q) = self::_search_parse_query($key, $arguments2, TRUE);
          if ($q) {
            $query[] = $q;
            $arguments[] = $key;
            $arguments[] = $key;
          }
        }
        $query = implode(' AND ', $query);

        // Build word-index conditions for the first pass
        //$query2 = substr(str_repeat("i.word = '%s' OR ", count($arguments2)), 0, -4);

        return array($query, $arguments, /*$query2, $arguments2, $matches*/);
Martyn Smith's avatar
Martyn Smith committed
937
    }
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074

    /**
     * Helper function for search_parse_query();
     */
    private static function _search_parse_query(&$word, &$scores, $not = FALSE) {
      $count = 0;
      // Determine the scorewords of this word/phrase
      if (!$not) {
        $split = explode(' ', $word);
        foreach ($split as $s) {
          $num = is_numeric($s);
          if ($num || strlen($s) >= /*variable_get('minimum_word_size', 3)*/3) {
            $s = $num ? ((int)ltrim($s, '-0')) : $s;
            if (!isset($scores[$s])) {
              $scores[$s] = $s;
              $count++;
            }
          }
        }
      }
      // Return matching snippet and number of added words
      return array("a.title ". ($not ? 'NOT ' : '') ."LIKE '%' || ? || '%'" . ($not ? ' AND ' : ' OR ') . 'a.description ' . ($not ? 'NOT ' : '') . "LIKE '%' || ? || '%'", $count);
    }

    /**
     * Simplifies a string according to indexing rules.
     */
    private static function search_simplify($text) {
      // Decode entities to UTF-8
      $text = self::decode_entities($text);
    
      // Lowercase
      $text = strtolower($text);
    
      // Call an external processor for word handling.
      //search_preprocess($text);
    
      // Simple CJK handling
      //if (variable_get('overlap_cjk', TRUE)) {
      //  $text = preg_replace_callback('/['. PREG_CLASS_CJK .']+/u', 'search_expand_cjk', $text);
      //}
    
      // To improve searching for numerical data such as dates, IP addresses
      // or version numbers, we consider a group of numerical characters
      // separated only by punctuation characters to be one piece.
      // This also means that searching for e.g. '20/03/1984' also returns
      // results with '20-03-1984' in them.
      // Readable regexp: ([number]+)[punctuation]+(?=[number])
      $text = preg_replace('/(['. PREG_CLASS_NUMBERS .']+)['. PREG_CLASS_PUNCTUATION .']+(?=['. PREG_CLASS_NUMBERS .'])/u', '\1', $text);
    
      // The dot, underscore and dash are simply removed. This allows meaningful
      // search behaviour with acronyms and URLs.
      $text = preg_replace('/[._-]+/', '', $text);
    
      // With the exception of the rules above, we consider all punctuation,
      // marks, spacers, etc, to be a word boundary.
      $text = preg_replace('/['. PREG_CLASS_SEARCH_EXCLUDE . ']+/u', ' ', $text);
    
      return $text;
    }

    /**
     * Decode all HTML entities (including numerical ones) to regular UTF-8 bytes.
     * Double-escaped entities will only be decoded once ("&amp;lt;" becomes "&lt;", not "<").
     *
     * @param $text
     *   The text to decode entities in.
     * @param $exclude 
     *   An array of characters which should not be decoded. For example,
     *   array('<', '&', '"'). This affects both named and numerical entities.
     */
    function decode_entities($text, $exclude = array()) {
      static $table;
      // We store named entities in a table for quick processing.
      if (!isset($table)) { 
        // Get all named HTML entities. 
        $table = array_flip(get_html_translation_table(HTML_ENTITIES));
        // PHP gives us ISO-8859-1 data, we need UTF-8.
        $table = array_map('utf8_encode', $table);
        // Add apostrophe (XML)
        $table['&apos;'] = "'";
      }
      $newtable = array_diff($table, $exclude);

      // Use a regexp to select all entities in one pass, to avoid decoding double-escaped entities twice.
      return preg_replace('/&(#x?)?([A-Za-z0-9]+);/e', '_decode_entities("$1", "$2", "$0", $newtable, $exclude)', $text);
    }

    /**
     * Helper function for decode_entities
     */
    function _decode_entities($prefix, $codepoint, $original, &$table, &$exclude) {
      // Named entity
      if (!$prefix) {
        if (isset($table[$original])) {
          return $table[$original];
        }
        else {
          return $original;
        } 
      }   
      // Hexadecimal numerical entity
      if ($prefix == '#x') {
        $codepoint = base_convert($codepoint, 16, 10);
      } 
      // Decimal numerical entity (strip leading zeros to avoid PHP octal notation)
      else {
        $codepoint = preg_replace('/^0+/', '', $codepoint);
      }
      // Encode codepoint as UTF-8 bytes
      if ($codepoint < 0x80) {
        $str = chr($codepoint);
      }
      else if ($codepoint < 0x800) {
        $str = chr(0xC0 | ($codepoint >> 6))
             . chr(0x80 | ($codepoint & 0x3F));
      }
      else if ($codepoint < 0x10000) {
        $str = chr(0xE0 | ( $codepoint >> 12))
             . chr(0x80 | (($codepoint >> 6) & 0x3F))
             . chr(0x80 | ( $codepoint       & 0x3F));
      }
      else if ($codepoint < 0x200000) {
        $str = chr(0xF0 | ( $codepoint >> 18))
             . chr(0x80 | (($codepoint >> 12) & 0x3F))
             . chr(0x80 | (($codepoint >> 6)  & 0x3F))
             . chr(0x80 | ( $codepoint        & 0x3F));
      }
      // Check for excluded characters
      if (in_array($str, $exclude)) {
        return $original;
      }
      else { 
        return $str;
      }
    }

Martyn Smith's avatar
Martyn Smith committed
1075
1076
}

1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
/**
 * Matches Unicode character classes to exclude from the search index.
 *
 * See: http://www.unicode.org/Public/UNIDATA/UCD.html#General_Category_Values
 *
 * The index only contains the following character classes:
 * Lu     Letter, Uppercase
 * Ll     Letter, Lowercase
 * Lt     Letter, Titlecase
 * Lo     Letter, Other
 * Nd     Number, Decimal Digit
 * No     Number, Other
 */
define('PREG_CLASS_SEARCH_EXCLUDE',
'\x{0}-\x{2f}\x{3a}-\x{40}\x{5b}-\x{60}\x{7b}-\x{bf}\x{d7}\x{f7}\x{2b0}-'.
'\x{385}\x{387}\x{3f6}\x{482}-\x{489}\x{559}-\x{55f}\x{589}-\x{5c7}\x{5f3}-'.
'\x{61f}\x{640}\x{64b}-\x{65e}\x{66a}-\x{66d}\x{670}\x{6d4}\x{6d6}-\x{6ed}'.
'\x{6fd}\x{6fe}\x{700}-\x{70f}\x{711}\x{730}-\x{74a}\x{7a6}-\x{7b0}\x{901}-'.
'\x{903}\x{93c}\x{93e}-\x{94d}\x{951}-\x{954}\x{962}-\x{965}\x{970}\x{981}-'.
'\x{983}\x{9bc}\x{9be}-\x{9cd}\x{9d7}\x{9e2}\x{9e3}\x{9f2}-\x{a03}\x{a3c}-'.
'\x{a4d}\x{a70}\x{a71}\x{a81}-\x{a83}\x{abc}\x{abe}-\x{acd}\x{ae2}\x{ae3}'.
'\x{af1}-\x{b03}\x{b3c}\x{b3e}-\x{b57}\x{b70}\x{b82}\x{bbe}-\x{bd7}\x{bf0}-'.
'\x{c03}\x{c3e}-\x{c56}\x{c82}\x{c83}\x{cbc}\x{cbe}-\x{cd6}\x{d02}\x{d03}'.
'\x{d3e}-\x{d57}\x{d82}\x{d83}\x{dca}-\x{df4}\x{e31}\x{e34}-\x{e3f}\x{e46}-'.
'\x{e4f}\x{e5a}\x{e5b}\x{eb1}\x{eb4}-\x{ebc}\x{ec6}-\x{ecd}\x{f01}-\x{f1f}'.
'\x{f2a}-\x{f3f}\x{f71}-\x{f87}\x{f90}-\x{fd1}\x{102c}-\x{1039}\x{104a}-'.
'\x{104f}\x{1056}-\x{1059}\x{10fb}\x{10fc}\x{135f}-\x{137c}\x{1390}-\x{1399}'.
'\x{166d}\x{166e}\x{1680}\x{169b}\x{169c}\x{16eb}-\x{16f0}\x{1712}-\x{1714}'.
'\x{1732}-\x{1736}\x{1752}\x{1753}\x{1772}\x{1773}\x{17b4}-\x{17db}\x{17dd}'.
'\x{17f0}-\x{180e}\x{1843}\x{18a9}\x{1920}-\x{1945}\x{19b0}-\x{19c0}\x{19c8}'.
'\x{19c9}\x{19de}-\x{19ff}\x{1a17}-\x{1a1f}\x{1d2c}-\x{1d61}\x{1d78}\x{1d9b}-'.
'\x{1dc3}\x{1fbd}\x{1fbf}-\x{1fc1}\x{1fcd}-\x{1fcf}\x{1fdd}-\x{1fdf}\x{1fed}-'.
'\x{1fef}\x{1ffd}-\x{2070}\x{2074}-\x{207e}\x{2080}-\x{2101}\x{2103}-\x{2106}'.
'\x{2108}\x{2109}\x{2114}\x{2116}-\x{2118}\x{211e}-\x{2123}\x{2125}\x{2127}'.
'\x{2129}\x{212e}\x{2132}\x{213a}\x{213b}\x{2140}-\x{2144}\x{214a}-\x{2b13}'.
'\x{2ce5}-\x{2cff}\x{2d6f}\x{2e00}-\x{3005}\x{3007}-\x{303b}\x{303d}-\x{303f}'.
'\x{3099}-\x{309e}\x{30a0}\x{30fb}-\x{30fe}\x{3190}-\x{319f}\x{31c0}-\x{31cf}'.
'\x{3200}-\x{33ff}\x{4dc0}-\x{4dff}\x{a015}\x{a490}-\x{a716}\x{a802}\x{a806}'.
'\x{a80b}\x{a823}-\x{a82b}\x{d800}-\x{f8ff}\x{fb1e}\x{fb29}\x{fd3e}\x{fd3f}'.
'\x{fdfc}-\x{fe6b}\x{feff}-\x{ff0f}\x{ff1a}-\x{ff20}\x{ff3b}-\x{ff40}\x{ff5b}-'.
'\x{ff65}\x{ff70}\x{ff9e}\x{ff9f}\x{ffe0}-\x{fffd}');

/**
 * Matches all 'N' Unicode character classes (numbers)
 */
define('PREG_CLASS_NUMBERS',
'\x{30}-\x{39}\x{b2}\x{b3}\x{b9}\x{bc}-\x{be}\x{660}-\x{669}\x{6f0}-\x{6f9}'.
'\x{966}-\x{96f}\x{9e6}-\x{9ef}\x{9f4}-\x{9f9}\x{a66}-\x{a6f}\x{ae6}-\x{aef}'.
'\x{b66}-\x{b6f}\x{be7}-\x{bf2}\x{c66}-\x{c6f}\x{ce6}-\x{cef}\x{d66}-\x{d6f}'.
'\x{e50}-\x{e59}\x{ed0}-\x{ed9}\x{f20}-\x{f33}\x{1040}-\x{1049}\x{1369}-'.
'\x{137c}\x{16ee}-\x{16f0}\x{17e0}-\x{17e9}\x{17f0}-\x{17f9}\x{1810}-\x{1819}'.
'\x{1946}-\x{194f}\x{2070}\x{2074}-\x{2079}\x{2080}-\x{2089}\x{2153}-\x{2183}'.
'\x{2460}-\x{249b}\x{24ea}-\x{24ff}\x{2776}-\x{2793}\x{3007}\x{3021}-\x{3029}'.
'\x{3038}-\x{303a}\x{3192}-\x{3195}\x{3220}-\x{3229}\x{3251}-\x{325f}\x{3280}-'.
'\x{3289}\x{32b1}-\x{32bf}\x{ff10}-\x{ff19}');

/**
 * Matches all 'P' Unicode character classes (punctuation)
 */
define('PREG_CLASS_PUNCTUATION',
'\x{21}-\x{23}\x{25}-\x{2a}\x{2c}-\x{2f}\x{3a}\x{3b}\x{3f}\x{40}\x{5b}-\x{5d}'.
'\x{5f}\x{7b}\x{7d}\x{a1}\x{ab}\x{b7}\x{bb}\x{bf}\x{37e}\x{387}\x{55a}-\x{55f}'.
'\x{589}\x{58a}\x{5be}\x{5c0}\x{5c3}\x{5f3}\x{5f4}\x{60c}\x{60d}\x{61b}\x{61f}'.
'\x{66a}-\x{66d}\x{6d4}\x{700}-\x{70d}\x{964}\x{965}\x{970}\x{df4}\x{e4f}'.
'\x{e5a}\x{e5b}\x{f04}-\x{f12}\x{f3a}-\x{f3d}\x{f85}\x{104a}-\x{104f}\x{10fb}'.
'\x{1361}-\x{1368}\x{166d}\x{166e}\x{169b}\x{169c}\x{16eb}-\x{16ed}\x{1735}'.
'\x{1736}\x{17d4}-\x{17d6}\x{17d8}-\x{17da}\x{1800}-\x{180a}\x{1944}\x{1945}'.
'\x{2010}-\x{2027}\x{2030}-\x{2043}\x{2045}-\x{2051}\x{2053}\x{2054}\x{2057}'.
'\x{207d}\x{207e}\x{208d}\x{208e}\x{2329}\x{232a}\x{23b4}-\x{23b6}\x{2768}-'.
'\x{2775}\x{27e6}-\x{27eb}\x{2983}-\x{2998}\x{29d8}-\x{29db}\x{29fc}\x{29fd}'.
'\x{3001}-\x{3003}\x{3008}-\x{3011}\x{3014}-\x{301f}\x{3030}\x{303d}\x{30a0}'.
'\x{30fb}\x{fd3e}\x{fd3f}\x{fe30}-\x{fe52}\x{fe54}-\x{fe61}\x{fe63}\x{fe68}'.
'\x{fe6a}\x{fe6b}\x{ff01}-\x{ff03}\x{ff05}-\x{ff0a}\x{ff0c}-\x{ff0f}\x{ff1a}'.
'\x{ff1b}\x{ff1f}\x{ff20}\x{ff3b}-\x{ff3d}\x{ff3f}\x{ff5b}\x{ff5d}\x{ff5f}-'.
'\x{ff65}');

/**
 * Matches all CJK characters that are candidates for auto-splitting
 * (Chinese, Japanese, Korean).
 * Contains kana and BMP ideographs.
 */
define('PREG_CLASS_CJK', '\x{3041}-\x{30ff}\x{31f0}-\x{31ff}\x{3400}-\x{4db5}'.
'\x{4e00}-\x{9fbb}\x{f900}-\x{fad9}');

Martyn Smith's avatar
Martyn Smith committed
1161
?>