lib.php 44.8 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
5
 * Copyright (C) 2006-2009 Catalyst IT Ltd and others; see:
 *                         http://wiki.mahara.org/Contributors
Martyn Smith's avatar
Martyn Smith committed
6
 *
Francois Marier's avatar
Francois Marier committed
7
8
9
10
 * 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
11
 *
Francois Marier's avatar
Francois Marier committed
12
13
14
15
 * 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
16
 *
Francois Marier's avatar
Francois Marier committed
17
18
 * 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
19
20
21
 *
 * @package    mahara
 * @subpackage search-internal
22
 * @author     Catalyst IT Ltd
Martyn Smith's avatar
Martyn Smith committed
23
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
24
 * @copyright  (C) 2006-2009 Catalyst IT Ltd http://catalyst.net.nz
Martyn Smith's avatar
Martyn Smith committed
25
26
27
28
29
30
 *
 */

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

/**
31
 * The internal search plugin which searches against the
Martyn Smith's avatar
Martyn Smith committed
32
33
34
35
 * Mahara database.
 */
class PluginSearchInternal extends PluginSearch {

36
37
38
39
    public static function can_be_disabled() {
        return false;
    }

Martyn Smith's avatar
Martyn Smith committed
40
41
42
    /**
     * Implement user searching with SQL
     *
43
44
     * NOTE: user with ID zero should never be returned
     *
Martyn Smith's avatar
Martyn Smith committed
45
46
47
     * @param string  The query string
     * @param integer How many results to return
     * @param integer What result to start at (0 == first result)
48
49
50
51
     * @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)
52
     *             'exclude'=> int     // excludes a user
Martyn Smith's avatar
Martyn Smith committed
53
54
55
56
57
     * @return array  A data structure containing results looking like ...
     *         $results = array(
     *               count   => integer, // total number of results
     *               limit   => integer, // how many results are returned
     *               offset  => integer, // starting from which result
58
     *               data    => array(   // the result records
Martyn Smith's avatar
Martyn Smith committed
59
     *                   array(
60
61
62
63
64
65
66
     *                       id            => integer,
     *                       username      => string,
     *                       institution   => string,
     *                       firstname     => string,
     *                       lastname      => string,
     *                       preferredname => string,
     *                       email         => string,
Martyn Smith's avatar
Martyn Smith committed
67
68
     *                   ),
     *                   array(
69
70
71
72
73
74
75
     *                       id            => integer,
     *                       username      => string,
     *                       institution   => string,
     *                       firstname     => string,
     *                       lastname      => string,
     *                       preferredname => string,
     *                       email         => string,
Martyn Smith's avatar
Martyn Smith committed
76
77
78
79
80
     *                   ),
     *                   array(...),
     *               ),
     *           );
     */
81
    public static function search_user($query_string, $limit, $offset = 0, $data=array()) {
82
83
        safe_require('artefact', 'internal');
        $publicfields = array_keys(ArtefactTypeProfile::get_public_fields());
84
85
86
        if (empty($publicfields)) {
            $publicfields = array('preferredname');
        }
87
88
        $fieldlist = '(' . join(',', array_map('db_quote', $publicfields)) . ')';
        $ilike = db_ilike();
89
        $data = self::prepare_search_user_options($data);
90
91
        $sql = '
            SELECT
92
                COUNT(DISTINCT u.id)
93
94
            FROM {artefact} a
                INNER JOIN {usr} u ON u.id = a.owner';
95
        if (isset($data['group'])) {
96
97
98
            $groupadminsql = '';
            if (isset($data['includeadmins']) and !$data['includeadmins']) {
                $groupadminsql = " AND gm.role != 'admin'";
99
            }
100
101
102
103
            $groupjoin = '
                INNER JOIN {group_member} gm ON
                    (gm.member = u.id AND gm.group = ' . (int)$data['group'] . $groupadminsql . ")\n";
            $sql .= $groupjoin;
104
        }
105
106
        $sql .= "
                LEFT OUTER JOIN {usr_account_preference} h ON (u.id = h.usr AND h.field = 'hiderealname')";
107
        $querydata = split(' ', preg_replace('/\s\s+/', ' ', strtolower(trim($query_string))));
108
        $hidenameallowed = get_config('userscanhiderealnames') ? 'TRUE' : 'FALSE';
109
        $searchusernamesallowed = get_config('searchusernames') ? 'TRUE' : 'FALSE';
110
        $namesql = "(u.preferredname $ilike '%' || ? || '%')
Ruslan Kabalin's avatar
Ruslan Kabalin committed
111
                    OR ((u.preferredname IS NULL OR u.preferredname = '' OR NOT $hidenameallowed OR h.value != '1')
112
                        AND (u.firstname $ilike '%' || ? || '%' OR u.lastname $ilike '%' || ? || '%'))
113
                    OR ($searchusernamesallowed AND u.username $ilike '%' || ? || '%')
114
115
116
117
                    OR (a.artefacttype IN $fieldlist
                        AND ( a.title $ilike '%' || ? || '%'))";
        $namesql = join('
                    OR ', array_fill(0, count($querydata), $namesql));
118
119
        $values = array();
        foreach ($querydata as $w) {
120
            $values = array_pad($values, count($values) + 5, $w);
121
122
        }

123
124
        $where = '
            WHERE
125
                u.id <> 0 AND u.active = 1 AND u.deleted = 0
126
127
                AND (
                    ' . $namesql . '
128
                )
129
                ' . (isset($data['exclude']) ? 'AND u.id != ' . $data['exclude'] : '') . '
130
            ';
131

132
133
        $sql .= $where;
        $count = count_records_sql($sql, $values);
134

135
        $result = array(
Nigel McNie's avatar
Nigel McNie committed
136
137
138
            'count'   => $count,
            'limit'   => $limit,
            'offset'  => $offset,
139
            'data'    => false,
Nigel McNie's avatar
Nigel McNie committed
140
        );
141

142
143
        if ($count < 1) {
            return $result;
144
145
        }

146
147
148
149
150
151
152
153
        if (is_postgres()) {
            $sql = '
            SELECT DISTINCT ON (' . $data['orderby'] . ')
                u.id, u.username, u.firstname, u.lastname, u.preferredname, u.email, u.staff
            FROM {artefact} a
                INNER JOIN {usr} u ON u.id = a.owner';
        }
        else if (is_mysql()) {
154
155
156
157
158
            // @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.
159
160
161
162
163
            $sql = '
            SELECT DISTINCT
                u.id, u.username, u.firstname, u.lastname, u.preferredname, u.email, u.staff
            FROM {artefact} a
                INNER JOIN {usr} u ON u.id = a.owner';
164
165
        }
        else {
166
            throw new SQLException('search_user() not implemented for your database engine (' . get_config('dbtype') . ')');
167
168
        }

169
170
171
        if (isset($data['group'])) {
            $sql .= $groupjoin;
        }
172
173
        $sql .= "
                LEFT OUTER JOIN {usr_account_preference} h ON (u.id = h.usr AND h.field = 'hiderealname')";
174
175
176
177
178
179
180
181
182
183
184
185
186

        $sql .= $where . '
            ORDER BY ' . $data['orderby'];

        $result['data'] = get_records_sql_array($sql, $values, $offset, $limit);

        if ($result['data']) {
            foreach ($result['data'] as &$item) {
                $item = (array)$item;
            }
        }

        return $result;
187
    }
188
189
190
191
192
193
194
195
196
197
198
199
200
201

    private static function prepare_search_user_options($options) {
        if (isset($options['group'])) {
            $options['group'] = intval($options['group']);
        }
        if (isset($options['includeadmins'])) {
            $options['includeadmins'] = (bool)$options['includeadmins'];
        }
        if (isset($options['orderby']) && $options['orderby'] == 'lastname') {
            $options['orderby'] = 'u.lastname, u.firstname, u.id';
        }
        else {
            $options['orderby'] = 'u.firstname, u.lastname, u.id';
        }
202
203
204
        if (isset($options['exclude'])) {
            $options['exclude'] = intval($options['exclude']);
        }
205
206
        return $options;
    }
Nigel McNie's avatar
Nigel McNie committed
207
    
208

209
210
    private static function match_expression($op, $string, &$values, $ilike) {
        switch ($op) {
211
212
        case 'starts':
            $values[] = $string;
213
            return ' ' . $ilike . ' ? || \'%\'';
214
215
216
217
218
        case 'equals':
            $values[] = $string;
            return ' = ? ';
        case 'contains':
            $values[] = $string;
219
            return ' ' . $ilike . ' \'%\' || ? || \'%\'';
220
221
222
223
224
225
        case 'in':
            return ' IN (' . join(',', array_map('db_quote',$string)) . ')';
        }
    }


226
    public static function admin_search_user($queries, $constraints, $offset, $limit, 
227
                                             $sortfield, $sortdir) {
228
229
230
231
232
233
234
235
236
237
        $sort = 'TRUE';
        if (preg_match('/^[a-zA-Z_0-9"]+$/', $sortfield)) {
            $sort = $sortfield;
            if (strtoupper($sortdir) != 'DESC') {
                $sort .= ' ASC';
            }
            else {
                $sort .= ' DESC';
            }
        }
238
        $where = 'WHERE u.id <> 0 AND u.deleted = 0';
239
240
        $values = array();

241
242
243
        // Get the correct keyword for case insensitive LIKE
        $ilike = db_ilike();

244
        // Only handle OR/AND expressions at the top level.  Eventually we may need subexpressions.
245

Richard Mansfield's avatar
Richard Mansfield committed
246
        if (!empty($queries)) {
247
248
            $where .= ' AND ( ';
            $str = array();
Richard Mansfield's avatar
Richard Mansfield committed
249
            foreach ($queries as $f) {
250
251
252
                if (!preg_match('/^[a-zA-Z_0-9"]+$/', $f['field'])) {
                    continue; // skip this field as it fails validation
                }
253
                $str[] = 'u.' . $f['field'] 
254
                    . PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike);
255
256
257
258
            }
            $where .= join(' OR ', $str) . ') ';
        } 

259
260
261
        // @todo: Institution stuff is messy and will probably need to
        // be rewritten when we get multiple institutions per user

262
        $requested = false;
263
        $institutionsearch = '';
Richard Mansfield's avatar
Richard Mansfield committed
264
265
        if (!empty($constraints)) {
            foreach ($constraints as $f) {
266
267
268
269
270
271
                if (strpos($f['field'], 'institution') === 0) {
                    $institutionsearch .= ' 
                        LEFT OUTER JOIN {usr_institution} i ON i.usr = u.id ';
                    if (strpos($f['field'], 'requested') > 0) {
                        $institutionsearch .= ' 
                            LEFT OUTER JOIN {usr_institution_request} ir ON ir.usr = u.id ';
272
                    }
273
274
                    if ($f['field'] == 'institution_requested') {
                        $where .= ' AND ( i.institution ' .
275
                            PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike) .
276
                            ' OR ir.institution ' .
277
                            PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike) . ')';
278
                        $requested = true;
279
280
281
282
283
                    } else {
                        if ($f['string'] == 'mahara') {
                            $where .= ' AND i.institution IS NULL';
                        } else {
                            $where .= ' AND i.institution'
284
                                . PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike);
285
                        }
286
                    }
287
                } else {
288
                    $where .= ' AND u.' . $f['field'] 
289
                        . PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike);
290
                }
291
            }
292
        }
293
        if (strpos($sort, 'institution') === 0) {
294
            $sort = 'i.' . $sort;
295
296
            if ($institutionsearch == '') {
                $institutionsearch = ' LEFT OUTER JOIN {usr_institution} i ON i.usr = u.id ';
297
            }
298
299
        }

300
        $count = get_field_sql('SELECT COUNT(*) FROM {usr} u ' . $institutionsearch . $where, $values);
301
302

        if ($count > 0) {
303
            $data = get_records_sql_assoc('
304
                SELECT 
305
                    u.id, u.firstname, u.lastname, u.username, u.email, u.staff, u.profileicon,
306
                    u.active, NOT u.suspendedcusr IS NULL as suspended
307
                FROM
308
                    {usr} u ' . $institutionsearch . $where . '
309
                ORDER BY ' . $sort,
310
                $values,
Richard Mansfield's avatar
Richard Mansfield committed
311
312
                $offset,
                $limit);
313
314

            if ($data) {
315
316
317
318
319
320
321
322
                $inst = get_records_select_array('usr_institution', 
                                                 'usr IN (' . join(',', array_keys($data)) . ')',
                                                 null, '', 'usr,institution');
                if ($inst) {
                    foreach ($inst as $i) {
                        $data[$i->usr]->institutions[] = $i->institution;
                    }
                }
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
                if ($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[] = $i->institution;
                            }
                        }
                    }
                }
338
339
340
                foreach ($data as &$item) {
                    $item = (array)$item;
                }
341
                $data = array_values($data);
342
343
344
345
346
347
348
349
            }
        }
        else {
            $data = false;
        }

        return array(
            'count'   => $count,
Richard Mansfield's avatar
Richard Mansfield committed
350
351
            'limit'   => $limit,
            'offset'  => $offset,
352
353
354
355
            'data'    => $data,
        );
    }

356

357
    public static function group_search_user($group, $queries, $constraints, $offset, $limit, $membershiptype, $order=null) {
358
        // Only handle OR/AND expressions at the top level.  Eventually we may need subexpressions.
359
360
        $searchsql = '';
        $values = array();
361
        if (!empty($queries)) {
362
363
            $ilike = db_ilike();
            $searchsql .= ' AND ( ';
364
365
            $str = array();
            foreach ($queries as $f) {
366
367
368
                if (!preg_match('/^[a-zA-Z_0-9"]+$/', $f['field'])) {
                    continue; // skip this field as it fails validation
                }
369
370
371
                $str[] = 'u.' . $f['field'] 
                    . PluginSearchInternal::match_expression($f['type'], $f['string'], $values, $ilike);
            }
372
            $searchsql .= join(' OR ', $str) . ') ';
373
374
        }

375
376
377
378
379
380
381
382
383
        if ($membershiptype == 'nonmember') {
            $select = '
                    u.id, u.firstname, u.lastname, u.username, u.email, u.profileicon, u.staff';
            $from = '
                FROM {usr} u
                WHERE u.id > 0 AND u.deleted = 0 ' . $searchsql . '
                    AND NOT u.id IN (SELECT member FROM {group_member} gm WHERE gm.group = ?)';
            $values[] = $group;
            $orderby = 'u.firstname, u.lastname, u.id';
384
        }
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
        else if ($membershiptype == 'notinvited') {
            $select = '
                    u.id, u.firstname, u.lastname, u.username, u.email, u.profileicon, u.staff';
            $from = '
                FROM {usr} u
                WHERE u.id > 0 AND u.deleted = 0 ' . $searchsql . '
                    AND NOT u.id IN (SELECT member FROM {group_member} gm WHERE gm.group = ?)
                    AND NOT u.id IN (SELECT member FROM {group_member_invite} gmi WHERE gmi.group = ?)';
            $values[] = $group;
            $values[] = $group;
            $orderby = 'u.firstname, u.lastname, u.id';
        }
        else if ($membershiptype == 'request') {
            $select = '
                    u.id, u.firstname, u.lastname, u.username, u.email, u.profileicon,
                    u.staff, ' . db_format_tsfield('gmr.ctime', 'jointime');
            $from = '
                FROM {usr} u
                    INNER JOIN {group_member_request} gmr ON (gmr.member = u.id)
                WHERE u.id > 0 AND u.deleted = 0 ' . $searchsql . '
                    AND gmr.group = ?';
            $values[] = $group;
            $orderby = 'gmr.ctime, u.firstname, u.lastname, u.id';
        }
        else if ($membershiptype == 'invite') {
            $select = '
                    u.id, u.firstname, u.lastname, u.username, u.email, u.profileicon,
                    u.staff, ' . db_format_tsfield('gmi.ctime', 'jointime');
            $from = '
                FROM {usr} u
                    INNER JOIN {group_member_invite} gmi ON (gmi.member = u.id)
                WHERE u.id > 0 AND u.deleted = 0 ' . $searchsql . '
                    AND gmi.group = ?';
            $values[] = $group;
            $orderby = 'gmi.ctime, u.firstname, u.lastname, u.id';
        }
        else { // All group members
            $select = '
                    u.id, u.firstname, u.lastname, u.username, u.email, u.profileicon,
                    u.staff, ' . db_format_tsfield('gm.ctime', 'jointime') . ', gm.role';
            $from = '
                FROM {usr} u
                    INNER JOIN {group_member} gm ON (gm.member = u.id)
                WHERE u.id > 0 AND u.deleted = 0 ' . $searchsql . '
                    AND gm.group = ?';
            $values[] = $group;
            $orderby = "gm.role = 'admin' DESC, gm.ctime, u.firstname, u.lastname, u.id";
432
433
434
            if ($order == 'latest') {
                $orderby = 'gm.ctime DESC, u.firstname, u.lastname, u.id';
            }
435
436
        }

437
        if ($order == 'random') {
438
439
440
            $orderby = db_random();
        }

441
        $count = get_field_sql('SELECT COUNT(*)' . $from, $values);
442
443
444

        if ($count > 0) {
            $data = get_records_sql_assoc('
445
                SELECT ' . $select . $from . ' ORDER BY ' . $orderby,
446
447
448
449
450
451
452
453
454
455
456
457
                $values,
                $offset,
                $limit);

            if ($data) {
                foreach ($data as &$item) {
                    $item = (array)$item;
                }
                $data = array_values($data);
            }
        }
        else {
458
            $data = array();
459
460
461
462
463
464
465
466
467
468
        }

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

469
470
471
472
473
474
475
476
477
478

    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)) {
479
480
481
482
483
484
485
            $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() . ' \'%\' || ? || \'%\'';
            }
486
            $where .= '
487
                AND (' . join(' OR ', $words) . ') ';
488
489
        }

490
        $studentid = '';
491
492
493
494
495
496
        if (!is_null($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';
497
            $studentid = ', member.studentid';
498
        }
499
        if (!is_null($institution->requested) || !is_null($institution->invitedby)) {
500
501
502
503
504
505
506
507
508
            $sql .= '
                LEFT OUTER JOIN {usr_institution_request} req ON (req.usr = u.id
                    AND req.institution = ' . db_quote($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)';
                }
509
                $studentid = ', req.studentid';
510
            }
511
            if (!is_null($institution->invitedby)) {
512
513
514
515
516
517
518
519
520
521
522
523
524
525
                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, 
526
                    u.admin, u.staff' . $studentid . $sql . $where . '
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
                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,
        );
    }





551
552
553
554
555
556
    /**
     * 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)
557
     * @param string  Which groups to search (all, member, notmember)
558
559
560
561
562
563
564
     * @return array  A data structure containing results looking like ...
     *         $results = array(
     *               count   => integer, // total number of results
     *               limit   => integer, // how many results are returned
     *               offset  => integer, // starting from which result
     *               data    => array(   // the result records
     *                   array(
Nigel McNie's avatar
Nigel McNie committed
565
     *                       id            => integer,
566
567
568
569
570
571
     *                       name          => string,
     *                       description   => string,
     *                       jointype      => string,
     *                       owner         => string,
     *                       ctime         => string,
     *                       mtime         => string,
Nigel McNie's avatar
Nigel McNie committed
572
573
574
     *                   ),
     *                   array(
     *                       id            => integer,
575
576
577
578
579
580
     *                       name          => string,
     *                       description   => string,
     *                       jointype      => string,
     *                       owner         => string,
     *                       ctime         => string,
     *                       mtime         => string,
Nigel McNie's avatar
Nigel McNie committed
581
582
583
584
585
     *                   ),
     *                   array(...),
     *               ),
     *           );
     */
586
    public static function search_group($query_string, $limit, $offset=0, $type='member', $category='') {
587
        global $USER;
588
589
        $data = array();

590
591
        $sql = "
            FROM
592
                {group}
593
            WHERE (
594
595
                name " . db_ilike() . " '%' || ? || '%'
                OR description " . db_ilike() . " '%' || ? || '%'
596
597
598
            ) AND deleted = 0 ";
        $values = array($query_string, $query_string);

599
600
601
602
        if (!$grouproles = join(',', array_keys($USER->get('grouproles')))) {
            $grouproles = '-1';
        }

603
       if ($type == 'member') {
604
            $sql .=  'AND id IN (' . $grouproles . ')';
605
        }
606
        else if ($type == 'notmember') {
607
            $sql .= 'AND id NOT IN (' . $grouproles . ')';
608
        }
609
        if (!empty($category)) {
Dan Marsden's avatar
Dan Marsden committed
610
            if ($category == -1) { //find unassigned groups
611
                $sql .= " AND category IS NULL";
Dan Marsden's avatar
Dan Marsden committed
612
            } else {
613
614
                $sql .= ' AND category = ?';
                $values[] = $category;
Dan Marsden's avatar
Dan Marsden committed
615
            }
616
        }
617

618
619
620
        $count = get_field_sql('SELECT COUNT(*) '.$sql, $values);

        if ($count > 0) {
621
            $sql = 'SELECT id, name, description, grouptype, jointype, public, ctime, mtime ' . $sql . ' ORDER BY name';
622
            $data = get_records_sql_array($sql, $values, $offset, $limit);
623
        }
Martyn Smith's avatar
Martyn Smith committed
624
625
626
627
628

        return array(
            'count'   => $count,
            'limit'   => $limit,
            'offset'  => $offset,
629
            'data'    => $data,
Martyn Smith's avatar
Martyn Smith committed
630
631
        );
    }
Martyn Smith's avatar
Martyn Smith committed
632
633
634
635
636
637
638
639
640
641
642

    /**
     * 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.
     *
643
644
645
     * 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
646
647
648
649
650
651
     * @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).
     * 
     */
652
653
    public static function self_search($querystring, $limit, $offset, $type = 'all') {
        global $USER;
654
655
656
657
        if (trim($querystring) == '') {
            return false;
        }

658
659
660
661
662
        // Tokenise the search
        $querydata = self::search_parse_query($querystring);

        $sql = "
            SELECT
663
                a.id, a.artefacttype, a.title, a.description
664
            FROM
665
                {artefact} a
666
            LEFT JOIN {artefact_tag} at ON (at.artefact = a.id)
667
            WHERE
668
669
670
671
672
673
                a.owner = ?
            AND (
                ($querydata[0])
                OR
                (LOWER(at.tag) = ?)
            )";
674
675
676
677
        $count_sql = "
            SELECT
                COUNT(*)
            FROM
678
                {artefact} a
679
            LEFT JOIN {artefact_tag} at ON (at.artefact = a.id)
680
            WHERE
681
682
683
684
685
686
                a.owner = ?
            AND (
                ($querydata[0])
                OR
                (LOWER(at.tag) = ?)
            )";
687
        array_unshift($querydata[1], $USER->get('id'));
688
689
        array_push($querydata[1], $querystring);

690
691
692
693
694
695
696
        $results = array(
            'data'   => get_records_sql_array($sql, $querydata[1], $offset, $limit),
            'offset' => $offset,
            'limit'  => $limit,
            'count'  => get_field_sql($count_sql, $querydata[1])
        );

697
698
699
700
701
702
703
        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;
                    }
704
                }
705
706
707
708
709
710
711
712
713
                $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'];
                }
714
                $newresult['summary'] = clean_html($newresult['summary']);
715
                $result = $newresult;
716
            }
717
718

            self::self_search_make_links($results);
719
720
721
722
723
724
        }

        return $results;
    }


725
726
727
728
729
730
731
732
    /**
     * Returns portfolio items (artefacts, views) owned by $owner and tagged
     * with $tag.
     *
     * @param string   $tag Tag
     * @param object   $owner: owner type (user,group,institution), and id
     * @param integer  $limit
     * @param integer  $offset
733
     * @param string   $sort
734
     * @param array    $types view/artefacttype filters
735
     * @param boolean  $returntags Return all the tags that have been attached to each result
736
     */
737
    public static function portfolio_search_by_tag($tag, $owner, $limit, $offset, $sort, $types, $returntags) {
738
739
        $viewfilter = is_null($types) || $types['view'] == true ? 'AND TRUE' : 'AND FALSE';

740
741
742
743
744
745
746
747
748
749
        if (is_null($types)) {
            $artefacttypefilter = '';
        }
        else if (!empty($types['artefact'])) {
            $artefacttypefilter = ' AND a.artefacttype IN (' . join(',', array_map('db_quote', $types['artefact'])) . ')';
        }
        else {
            $artefacttypefilter = ' AND FALSE';
        }

750
751
752
753
754
755
756
757
758
        if (!is_null($tag)) {
            $artefacttypefilter .= ' AND at.tag = ?';
            $viewfilter .= ' AND vt.tag = ?';
            $values = array($owner->id, $tag, $owner->id, $tag);
        }
        else {
            $values = array($owner->id, $owner->id);
        }

759
760
        $from = "FROM (
           (SELECT a.id, a.title, a.description, 'artefact' AS type, a.artefacttype, " . db_format_tsfield('a.ctime', 'ctime') . "
761
            FROM {artefact} a JOIN {artefact_tag} at ON (a.id = at.artefact)
762
            WHERE a.owner = ?" . $artefacttypefilter . ")
763
764
           UNION
           (SELECT v.id, v.title, v.description, 'view' AS type, NULL AS artefacttype, " . db_format_tsfield('v.ctime', 'ctime') . "
765
766
            FROM {view} v JOIN {view_tag} vt ON (v.id = vt.view)
            WHERE v.owner = ? " . $viewfilter . ")
767
768
769
770
771
772
773
        ) p";

        $result = (object) array(
            'tag'    => $tag,
            'owner'  => $owner,
            'offset' => $offset,
            'limit'  => $limit,
774
            'sort'   => $sort,
775
776
777
778
779
780
            'count'  => 0,
            'data'   => array(),
        );

        if ($count = count_records_sql('SELECT COUNT(*) ' . $from, $values, $offset, $limit)) {
            $result->count = $count;
781
            $sort = $sort == 'date' ? 'ctime DESC' : 'title ASC';
782
            if ($data = get_records_sql_assoc("SELECT type || ':' || id AS tid, p.* " . $from . ' ORDER BY ' . $sort, $values, $offset, $limit)) {
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
                if ($returntags) {
                    $ids = array('view' => array(), 'artefact' => array());
                    foreach ($data as &$d) {
                        $ids[$d->type][$d->id] = 1;
                    }
                    if (!empty($ids['view'])) {
                        if ($viewtags = get_records_select_array('view_tag', 'view IN (' . join(',', array_keys($ids['view'])) . ')')) {
                            foreach ($viewtags as &$vt) {
                                $data['view:' . $vt->view]->tags[] = $vt->tag;
                            }
                        }
                    }
                    if (!empty($ids['artefact'])) {
                        if ($artefacttags = get_records_select_array('artefact_tag', 'artefact IN (' . join(',', array_keys($ids['artefact'])) . ')')) {
                            foreach ($artefacttags as &$at) {
                                $data['artefact:' . $at->artefact]->tags[] = $at->tag;
                            }
                        }
                    }
                }
803
804
805
806
807
808
809
                $result->data = $data;
            }
        }
        return $result;
    }


810
811
812
813
814
815
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
    /**
     * 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
925
    }
926
927
928
929
930
931
932
933
934
935
936
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

    /**
     * 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
1063
1064
}

1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
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
/**
 * 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
1149
?>