aboutsummaryrefslogblamecommitdiffhomepage
path: root/inc/simple_html_dom.php
blob: 43b94e5700a7e3fb9c709e7b3e12af5c4316dc88 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
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
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
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
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
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
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































                                                                                                                                                                                                                                                                        
<?php
/**
 * Website: http://sourceforge.net/projects/simplehtmldom/
 * Additional projects that may be used: http://sourceforge.net/projects/debugobject/
 * Acknowledge: Jose Solorzano (https://sourceforge.net/projects/php-html/)
 * Contributions by:
 *	 Yousuke Kumakura (Attribute filters)
 *	 Vadim Voituk (Negative indexes supports of "find" method)
 *	 Antcs (Constructor with automatically load contents either text or file/url)
 *
 * all affected sections have comments starting with "PaperG"
 *
 * Paperg - Added case insensitive testing of the value of the selector.
 * Paperg - Added tag_start for the starting index of tags - NOTE: This works but not accurately.
 *  This tag_start gets counted AFTER \r\n have been crushed out, and after the remove_noice calls so it will not reflect the REAL position of the tag in the source,
 *  it will almost always be smaller by some amount.
 *  We use this to determine how far into the file the tag in question is.  This "percentage will never be accurate as the $dom->size is the "real" number of bytes the dom was created from.
 *  but for most purposes, it's a really good estimation.
 * Paperg - Added the forceTagsClosed to the dom constructor.  Forcing tags closed is great for malformed html, but it CAN lead to parsing errors.
 * Allow the user to tell us how much they trust the html.
 * Paperg add the text and plaintext to the selectors for the find syntax.  plaintext implies text in the innertext of a node.  text implies that the tag is a text node.
 * This allows for us to find tags based on the text they contain.
 * Create find_ancestor_tag to see if a tag is - at any level - inside of another specific tag.
 * Paperg: added parse_charset so that we know about the character set of the source document.
 *  NOTE:  If the user's system has a routine called get_last_retrieve_url_contents_content_type availalbe, we will assume it's returning the content-type header from the
 *  last transfer or curl_exec, and we will parse that and use it in preference to any other method of charset detection.
 *
 * Found infinite loop in the case of broken html in restore_noise.  Rewrote to protect from that.
 * PaperG (John Schlick) Added get_display_size for "IMG" tags.
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @author S.C. Chen <me578022@gmail.com>
 * @author John Schlick
 * @author Rus Carroll
 * @version 1.5 ($Rev: 202 $)
 * @package PlaceLocalInclude
 * @subpackage simple_html_dom
 */

/**
 * All of the Defines for the classes below.
 * @author S.C. Chen <me578022@gmail.com>
 */
define('HDOM_TYPE_ELEMENT', 1);
define('HDOM_TYPE_COMMENT', 2);
define('HDOM_TYPE_TEXT',	3);
define('HDOM_TYPE_ENDTAG',  4);
define('HDOM_TYPE_ROOT',	5);
define('HDOM_TYPE_UNKNOWN', 6);
define('HDOM_QUOTE_DOUBLE', 0);
define('HDOM_QUOTE_SINGLE', 1);
define('HDOM_QUOTE_NO',	 3);
define('HDOM_INFO_BEGIN',   0);
define('HDOM_INFO_END',	 1);
define('HDOM_INFO_QUOTE',   2);
define('HDOM_INFO_SPACE',   3);
define('HDOM_INFO_TEXT',	4);
define('HDOM_INFO_INNER',   5);
define('HDOM_INFO_OUTER',   6);
define('HDOM_INFO_ENDSPACE',7);
define('DEFAULT_TARGET_CHARSET', 'UTF-8');
define('DEFAULT_BR_TEXT', "\r\n");
define('DEFAULT_SPAN_TEXT', " ");
define('MAX_FILE_SIZE', 600000);
// helper functions
// -----------------------------------------------------------------------------
// get html dom from file
// $maxlen is defined in the code as PHP_STREAM_COPY_ALL which is defined as -1.
function file_get_html($url, $use_include_path = false, $context=null, $offset = -1, $maxLen=-1, $lowercase = true, $forceTagsClosed=true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN=true, $defaultBRText=DEFAULT_BR_TEXT, $defaultSpanText=DEFAULT_SPAN_TEXT)
{
	// We DO force the tags to be terminated.
	$dom = new simple_html_dom(null, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText);
	// For sourceforge users: uncomment the next line and comment the retreive_url_contents line 2 lines down if it is not already done.
	$contents = file_get_contents($url, $use_include_path, $context, $offset);
	// Paperg - use our own mechanism for getting the contents as we want to control the timeout.
	//$contents = retrieve_url_contents($url);
	if (empty($contents) || strlen($contents) > MAX_FILE_SIZE)
	{
		return false;
	}
	// The second parameter can force the selectors to all be lowercase.
	$dom->load($contents, $lowercase, $stripRN);
	return $dom;
}

// get html dom from string
function str_get_html($str, $lowercase=true, $forceTagsClosed=true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN=true, $defaultBRText=DEFAULT_BR_TEXT, $defaultSpanText=DEFAULT_SPAN_TEXT)
{
	$dom = new simple_html_dom(null, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText);
	if (empty($str) || strlen($str) > MAX_FILE_SIZE)
	{
		$dom->clear();
		return false;
	}
	$dom->load($str, $lowercase, $stripRN);
	return $dom;
}

// dump html dom tree
function dump_html_tree($node, $show_attr=true, $deep=0)
{
	$node->dump($node);
}


/**
 * simple html dom node
 * PaperG - added ability for "find" routine to lowercase the value of the selector.
 * PaperG - added $tag_start to track the start position of the tag in the total byte index
 *
 * @package PlaceLocalInclude
 */
class simple_html_dom_node
{
	public $nodetype = HDOM_TYPE_TEXT;
	public $tag = 'text';
	public $attr = array();
	public $children = array();
	public $nodes = array();
	public $parent = null;
	// The "info" array - see HDOM_INFO_... for what each element contains.
	public $_ = array();
	public $tag_start = 0;
	private $dom = null;

	function __construct($dom)
	{
		$this->dom = $dom;
		$dom->nodes[] = $this;
	}

	function __destruct()
	{
		$this->clear();
	}

	function __toString()
	{
		return $this->outertext();
	}

	// clean up memory due to php5 circular references memory leak...
	function clear()
	{
		$this->dom = null;
		$this->nodes = null;
		$this->parent = null;
		$this->children = null;
	}

	// dump node's tree
	function dump($show_attr=true, $deep=0)
	{
		$lead = str_repeat('	', $deep);

		echo $lead.$this->tag;
		if ($show_attr && count($this->attr)>0)
		{
			echo '(';
			foreach ($this->attr as $k=>$v)
				echo "[$k]=>\"".$this->$k.'", ';
			echo ')';
		}
		echo "\n";

		if ($this->nodes)
		{
			foreach ($this->nodes as $c)
			{
				$c->dump($show_attr, $deep+1);
			}
		}
	}


	// Debugging function to dump a single dom node with a bunch of information about it.
	function dump_node($echo=true)
	{

		$string = $this->tag;
		if (count($this->attr)>0)
		{
			$string .= '(';
			foreach ($this->attr as $k=>$v)
			{
				$string .= "[$k]=>\"".$this->$k.'", ';
			}
			$string .= ')';
		}
		if (count($this->_)>0)
		{
			$string .= ' $_ (';
			foreach ($this->_ as $k=>$v)
			{
				if (is_array($v))
				{
					$string .= "[$k]=>(";
					foreach ($v as $k2=>$v2)
					{
						$string .= "[$k2]=>\"".$v2.'", ';
					}
					$string .= ")";
				} else {
					$string .= "[$k]=>\"".$v.'", ';
				}
			}
			$string .= ")";
		}

		if (isset($this->text))
		{
			$string .= " text: (" . $this->text . ")";
		}

		$string .= " HDOM_INNER_INFO: '";
		if (isset($node->_[HDOM_INFO_INNER]))
		{
			$string .= $node->_[HDOM_INFO_INNER] . "'";
		}
		else
		{
			$string .= ' NULL ';
		}

		$string .= " children: " . count($this->children);
		$string .= " nodes: " . count($this->nodes);
		$string .= " tag_start: " . $this->tag_start;
		$string .= "\n";

		if ($echo)
		{
			echo $string;
			return;
		}
		else
		{
			return $string;
		}
	}

	// returns the parent of node
	// If a node is passed in, it will reset the parent of the current node to that one.
	function parent($parent=null)
	{
		// I am SURE that this doesn't work properly.
		// It fails to unset the current node from it's current parents nodes or children list first.
		if ($parent !== null)
		{
			$this->parent = $parent;
			$this->parent->nodes[] = $this;
			$this->parent->children[] = $this;
		}

		return $this->parent;
	}

	// verify that node has children
	function has_child()
	{
		return !empty($this->children);
	}

	// returns children of node
	function children($idx=-1)
	{
		if ($idx===-1)
		{
			return $this->children;
		}
		if (isset($this->children[$idx])) return $this->children[$idx];
		return null;
	}

	// returns the first child of node
	function first_child()
	{
		if (count($this->children)>0)
		{
			return $this->children[0];
		}
		return null;
	}

	// returns the last child of node
	function last_child()
	{
		if (($count=count($this->children))>0)
		{
			return $this->children[$count-1];
		}
		return null;
	}

	// returns the next sibling of node
	function next_sibling()
	{
		if ($this->parent===null)
		{
			return null;
		}

		$idx = 0;
		$count = count($this->parent->children);
		while ($idx<$count && $this!==$this->parent->children[$idx])
		{
			++$idx;
		}
		if (++$idx>=$count)
		{
			return null;
		}
		return $this->parent->children[$idx];
	}

	// returns the previous sibling of node
	function prev_sibling()
	{
		if ($this->parent===null) return null;
		$idx = 0;
		$count = count($this->parent->children);
		while ($idx<$count && $this!==$this->parent->children[$idx])
			++$idx;
		if (--$idx<0) return null;
		return $this->parent->children[$idx];
	}

	// function to locate a specific ancestor tag in the path to the root.
	function find_ancestor_tag($tag)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debugLogEntry(1); }

		// Start by including ourselves in the comparison.
		$returnDom = $this;

		while (!is_null($returnDom))
		{
			if (is_object($debug_object)) { $debug_object->debugLog(2, "Current tag is: " . $returnDom->tag); }

			if ($returnDom->tag == $tag)
			{
				break;
			}
			$returnDom = $returnDom->parent;
		}
		return $returnDom;
	}

	// get dom node's inner html
	function innertext()
	{
		if (isset($this->_[HDOM_INFO_INNER])) return $this->_[HDOM_INFO_INNER];
		if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);

		$ret = '';
		foreach ($this->nodes as $n)
			$ret .= $n->outertext();
		return $ret;
	}

	// get dom node's outer text (with tag)
	function outertext()
	{
		global $debug_object;
		if (is_object($debug_object))
		{
			$text = '';
			if ($this->tag == 'text')
			{
				if (!empty($this->text))
				{
					$text = " with text: " . $this->text;
				}
			}
			$debug_object->debugLog(1, 'Innertext of tag: ' . $this->tag . $text);
		}

		if ($this->tag==='root') return $this->innertext();

		// trigger callback
		if ($this->dom && $this->dom->callback!==null)
		{
			call_user_func_array($this->dom->callback, array($this));
		}

		if (isset($this->_[HDOM_INFO_OUTER])) return $this->_[HDOM_INFO_OUTER];
		if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);

		// render begin tag
		if ($this->dom && $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]])
		{
			$ret = $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]->makeup();
		} else {
			$ret = "";
		}

		// render inner text
		if (isset($this->_[HDOM_INFO_INNER]))
		{
			// If it's a br tag...  don't return the HDOM_INNER_INFO that we may or may not have added.
			if ($this->tag != "br")
			{
				$ret .= $this->_[HDOM_INFO_INNER];
			}
		} else {
			if ($this->nodes)
			{
				foreach ($this->nodes as $n)
				{
					$ret .= $this->convert_text($n->outertext());
				}
			}
		}

		// render end tag
		if (isset($this->_[HDOM_INFO_END]) && $this->_[HDOM_INFO_END]!=0)
			$ret .= '</'.$this->tag.'>';
		return $ret;
	}

	// get dom node's plain text
	function text()
	{
		if (isset($this->_[HDOM_INFO_INNER])) return $this->_[HDOM_INFO_INNER];
		switch ($this->nodetype)
		{
			case HDOM_TYPE_TEXT: return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
			case HDOM_TYPE_COMMENT: return '';
			case HDOM_TYPE_UNKNOWN: return '';
		}
		if (strcasecmp($this->tag, 'script')===0) return '';
		if (strcasecmp($this->tag, 'style')===0) return '';

		$ret = '';
		// In rare cases, (always node type 1 or HDOM_TYPE_ELEMENT - observed for some span tags, and some p tags) $this->nodes is set to NULL.
		// NOTE: This indicates that there is a problem where it's set to NULL without a clear happening.
		// WHY is this happening?
		if (!is_null($this->nodes))
		{
			foreach ($this->nodes as $n)
			{
				$ret .= $this->convert_text($n->text());
			}

			// If this node is a span... add a space at the end of it so multiple spans don't run into each other.  This is plaintext after all.
			if ($this->tag == "span")
			{
				$ret .= $this->dom->default_span_text;
			}


		}
		return $ret;
	}

	function xmltext()
	{
		$ret = $this->innertext();
		$ret = str_ireplace('<![CDATA[', '', $ret);
		$ret = str_replace(']]>', '', $ret);
		return $ret;
	}

	// build node's text with tag
	function makeup()
	{
		// text, comment, unknown
		if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);

		$ret = '<'.$this->tag;
		$i = -1;

		foreach ($this->attr as $key=>$val)
		{
			++$i;

			// skip removed attribute
			if ($val===null || $val===false)
				continue;

			$ret .= $this->_[HDOM_INFO_SPACE][$i][0];
			//no value attr: nowrap, checked selected...
			if ($val===true)
				$ret .= $key;
			else {
				switch ($this->_[HDOM_INFO_QUOTE][$i])
				{
					case HDOM_QUOTE_DOUBLE: $quote = '"'; break;
					case HDOM_QUOTE_SINGLE: $quote = '\''; break;
					default: $quote = '';
				}
				$ret .= $key.$this->_[HDOM_INFO_SPACE][$i][1].'='.$this->_[HDOM_INFO_SPACE][$i][2].$quote.$val.$quote;
			}
		}
		$ret = $this->dom->restore_noise($ret);
		return $ret . $this->_[HDOM_INFO_ENDSPACE] . '>';
	}

	// find elements by css selector
	//PaperG - added ability for find to lowercase the value of the selector.
	function find($selector, $idx=null, $lowercase=false)
	{
		$selectors = $this->parse_selector($selector);
		if (($count=count($selectors))===0) return array();
		$found_keys = array();

		// find each selector
		for ($c=0; $c<$count; ++$c)
		{
			// The change on the below line was documented on the sourceforge code tracker id 2788009
			// used to be: if (($levle=count($selectors[0]))===0) return array();
			if (($levle=count($selectors[$c]))===0) return array();
			if (!isset($this->_[HDOM_INFO_BEGIN])) return array();

			$head = array($this->_[HDOM_INFO_BEGIN]=>1);

			// handle descendant selectors, no recursive!
			for ($l=0; $l<$levle; ++$l)
			{
				$ret = array();
				foreach ($head as $k=>$v)
				{
					$n = ($k===-1) ? $this->dom->root : $this->dom->nodes[$k];
					//PaperG - Pass this optional parameter on to the seek function.
					$n->seek($selectors[$c][$l], $ret, $lowercase);
				}
				$head = $ret;
			}

			foreach ($head as $k=>$v)
			{
				if (!isset($found_keys[$k]))
					$found_keys[$k] = 1;
			}
		}

		// sort keys
		ksort($found_keys);

		$found = array();
		foreach ($found_keys as $k=>$v)
			$found[] = $this->dom->nodes[$k];

		// return nth-element or array
		if (is_null($idx)) return $found;
		else if ($idx<0) $idx = count($found) + $idx;
		return (isset($found[$idx])) ? $found[$idx] : null;
	}

	// seek for given conditions
	// PaperG - added parameter to allow for case insensitive testing of the value of a selector.
	protected function seek($selector, &$ret, $lowercase=false)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debugLogEntry(1); }

		list($tag, $key, $val, $exp, $no_key) = $selector;

		// xpath index
		if ($tag && $key && is_numeric($key))
		{
			$count = 0;
			foreach ($this->children as $c)
			{
				if ($tag==='*' || $tag===$c->tag) {
					if (++$count==$key) {
						$ret[$c->_[HDOM_INFO_BEGIN]] = 1;
						return;
					}
				}
			}
			return;
		}

		$end = (!empty($this->_[HDOM_INFO_END])) ? $this->_[HDOM_INFO_END] : 0;
		if ($end==0) {
			$parent = $this->parent;
			while (!isset($parent->_[HDOM_INFO_END]) && $parent!==null) {
				$end -= 1;
				$parent = $parent->parent;
			}
			$end += $parent->_[HDOM_INFO_END];
		}

		for ($i=$this->_[HDOM_INFO_BEGIN]+1; $i<$end; ++$i) {
			$node = $this->dom->nodes[$i];

			$pass = true;

			if ($tag==='*' && !$key) {
				if (in_array($node, $this->children, true))
					$ret[$i] = 1;
				continue;
			}

			// compare tag
			if ($tag && $tag!=$node->tag && $tag!=='*') {$pass=false;}
			// compare key
			if ($pass && $key) {
				if ($no_key) {
					if (isset($node->attr[$key])) $pass=false;
				} else {
					if (($key != "plaintext") && !isset($node->attr[$key])) $pass=false;
				}
			}
			// compare value
			if ($pass && $key && $val  && $val!=='*') {
				// If they have told us that this is a "plaintext" search then we want the plaintext of the node - right?
				if ($key == "plaintext") {
					// $node->plaintext actually returns $node->text();
					$nodeKeyValue = $node->text();
				} else {
					// this is a normal search, we want the value of that attribute of the tag.
					$nodeKeyValue = $node->attr[$key];
				}
				if (is_object($debug_object)) {$debug_object->debugLog(2, "testing node: " . $node->tag . " for attribute: " . $key . $exp . $val . " where nodes value is: " . $nodeKeyValue);}

				//PaperG - If lowercase is set, do a case insensitive test of the value of the selector.
				if ($lowercase) {
					$check = $this->match($exp, strtolower($val), strtolower($nodeKeyValue));
				} else {
					$check = $this->match($exp, $val, $nodeKeyValue);
				}
				if (is_object($debug_object)) {$debug_object->debugLog(2, "after match: " . ($check ? "true" : "false"));}

				// handle multiple class
				if (!$check && strcasecmp($key, 'class')===0) {
					foreach (explode(' ',$node->attr[$key]) as $k) {
						// Without this, there were cases where leading, trailing, or double spaces lead to our comparing blanks - bad form.
						if (!empty($k)) {
							if ($lowercase) {
								$check = $this->match($exp, strtolower($val), strtolower($k));
							} else {
								$check = $this->match($exp, $val, $k);
							}
							if ($check) break;
						}
					}
				}
				if (!$check) $pass = false;
			}
			if ($pass) $ret[$i] = 1;
			unset($node);
		}
		// It's passed by reference so this is actually what this function returns.
		if (is_object($debug_object)) {$debug_object->debugLog(1, "EXIT - ret: ", $ret);}
	}

	protected function match($exp, $pattern, $value) {
		global $debug_object;
		if (is_object($debug_object)) {$debug_object->debugLogEntry(1);}

		switch ($exp) {
			case '=':
				return ($value===$pattern);
			case '!=':
				return ($value!==$pattern);
			case '^=':
				return preg_match("/^".preg_quote($pattern,'/')."/", $value);
			case '$=':
				return preg_match("/".preg_quote($pattern,'/')."$/", $value);
			case '*=':
				if ($pattern[0]=='/') {
					return preg_match($pattern, $value);
				}
				return preg_match("/".$pattern."/i", $value);
		}
		return false;
	}

	protected function parse_selector($selector_string) {
		global $debug_object;
		if (is_object($debug_object)) {$debug_object->debugLogEntry(1);}

		// pattern of CSS selectors, modified from mootools
		// Paperg: Add the colon to the attrbute, so that it properly finds <tag attr:ibute="something" > like google does.
		// Note: if you try to look at this attribute, yo MUST use getAttribute since $dom->x:y will fail the php syntax check.
// Notice the \[ starting the attbute?  and the @? following?  This implies that an attribute can begin with an @ sign that is not captured.
// This implies that an html attribute specifier may start with an @ sign that is NOT captured by the expression.
// farther study is required to determine of this should be documented or removed.
//		$pattern = "/([\w-:\*]*)(?:\#([\w-]+)|\.([\w-]+))?(?:\[@?(!?[\w-]+)(?:([!*^$]?=)[\"']?(.*?)[\"']?)?\])?([\/, ]+)/is";
		$pattern = "/([\w-:\*]*)(?:\#([\w-]+)|\.([\w-]+))?(?:\[@?(!?[\w-:]+)(?:([!*^$]?=)[\"']?(.*?)[\"']?)?\])?([\/, ]+)/is";
		preg_match_all($pattern, trim($selector_string).' ', $matches, PREG_SET_ORDER);
		if (is_object($debug_object)) {$debug_object->debugLog(2, "Matches Array: ", $matches);}

		$selectors = array();
		$result = array();
		//print_r($matches);

		foreach ($matches as $m) {
			$m[0] = trim($m[0]);
			if ($m[0]==='' || $m[0]==='/' || $m[0]==='//') continue;
			// for browser generated xpath
			if ($m[1]==='tbody') continue;

			list($tag, $key, $val, $exp, $no_key) = array($m[1], null, null, '=', false);
			if (!empty($m[2])) {$key='id'; $val=$m[2];}
			if (!empty($m[3])) {$key='class'; $val=$m[3];}
			if (!empty($m[4])) {$key=$m[4];}
			if (!empty($m[5])) {$exp=$m[5];}
			if (!empty($m[6])) {$val=$m[6];}

			// convert to lowercase
			if ($this->dom->lowercase) {$tag=strtolower($tag); $key=strtolower($key);}
			//elements that do NOT have the specified attribute
			if (isset($key[0]) && $key[0]==='!') {$key=substr($key, 1); $no_key=true;}

			$result[] = array($tag, $key, $val, $exp, $no_key);
			if (trim($m[7])===',') {
				$selectors[] = $result;
				$result = array();
			}
		}
		if (count($result)>0)
			$selectors[] = $result;
		return $selectors;
	}

	function __get($name) {
		if (isset($this->attr[$name]))
		{
			return $this->convert_text($this->attr[$name]);
		}
		switch ($name) {
			case 'outertext': return $this->outertext();
			case 'innertext': return $this->innertext();
			case 'plaintext': return $this->text();
			case 'xmltext': return $this->xmltext();
			default: return array_key_exists($name, $this->attr);
		}
	}

	function __set($name, $value) {
		switch ($name) {
			case 'outertext': return $this->_[HDOM_INFO_OUTER] = $value;
			case 'innertext':
				if (isset($this->_[HDOM_INFO_TEXT])) return $this->_[HDOM_INFO_TEXT] = $value;
				return $this->_[HDOM_INFO_INNER] = $value;
		}
		if (!isset($this->attr[$name])) {
			$this->_[HDOM_INFO_SPACE][] = array(' ', '', '');
			$this->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_DOUBLE;
		}
		$this->attr[$name] = $value;
	}

	function __isset($name) {
		switch ($name) {
			case 'outertext': return true;
			case 'innertext': return true;
			case 'plaintext': return true;
		}
		//no value attr: nowrap, checked selected...
		return (array_key_exists($name, $this->attr)) ? true : isset($this->attr[$name]);
	}

	function __unset($name) {
		if (isset($this->attr[$name]))
			unset($this->attr[$name]);
	}

	// PaperG - Function to convert the text from one character set to another if the two sets are not the same.
	function convert_text($text)
	{
		global $debug_object;
		if (is_object($debug_object)) {$debug_object->debugLogEntry(1);}

		$converted_text = $text;

		$sourceCharset = "";
		$targetCharset = "";

		if ($this->dom)
		{
			$sourceCharset = strtoupper($this->dom->_charset);
			$targetCharset = strtoupper($this->dom->_target_charset);
		}
		if (is_object($debug_object)) {$debug_object->debugLog(3, "source charset: " . $sourceCharset . " target charaset: " . $targetCharset);}

		if (!empty($sourceCharset) && !empty($targetCharset) && (strcasecmp($sourceCharset, $targetCharset) != 0))
		{
			// Check if the reported encoding could have been incorrect and the text is actually already UTF-8
			if ((strcasecmp($targetCharset, 'UTF-8') == 0) && ($this->is_utf8($text)))
			{
				$converted_text = $text;
			}
			else
			{
				$converted_text = iconv($sourceCharset, $targetCharset, $text);
			}
		}

		// Lets make sure that we don't have that silly BOM issue with any of the utf-8 text we output.
		if ($targetCharset == 'UTF-8')
		{
			if (substr($converted_text, 0, 3) == "\xef\xbb\xbf")
			{
				$converted_text = substr($converted_text, 3);
			}
			if (substr($converted_text, -3) == "\xef\xbb\xbf")
			{
				$converted_text = substr($converted_text, 0, -3);
			}
		}

		return $converted_text;
	}

	/**
	* Returns true if $string is valid UTF-8 and false otherwise.
	*
	* @param mixed $str String to be tested
	* @return boolean
	*/
	static function is_utf8($str)
	{
		$c=0; $b=0;
		$bits=0;
		$len=strlen($str);
		for($i=0; $i<$len; $i++)
		{
			$c=ord($str[$i]);
			if($c > 128)
			{
				if(($c >= 254)) return false;
				elseif($c >= 252) $bits=6;
				elseif($c >= 248) $bits=5;
				elseif($c >= 240) $bits=4;
				elseif($c >= 224) $bits=3;
				elseif($c >= 192) $bits=2;
				else return false;
				if(($i+$bits) > $len) return false;
				while($bits > 1)
				{
					$i++;
					$b=ord($str[$i]);
					if($b < 128 || $b > 191) return false;
					$bits--;
				}
			}
		}
		return true;
	}
	/*
	function is_utf8($string)
	{
		//this is buggy
		return (utf8_encode(utf8_decode($string)) == $string);
	}
	*/

	/**
	 * Function to try a few tricks to determine the displayed size of an img on the page.
	 * NOTE: This will ONLY work on an IMG tag. Returns FALSE on all other tag types.
	 *
	 * @author John Schlick
	 * @version April 19 2012
	 * @return array an array containing the 'height' and 'width' of the image on the page or -1 if we can't figure it out.
	 */
	function get_display_size()
	{
		global $debug_object;

		$width = -1;
		$height = -1;

		if ($this->tag !== 'img')
		{
			return false;
		}

		// See if there is aheight or width attribute in the tag itself.
		if (isset($this->attr['width']))
		{
			$width = $this->attr['width'];
		}

		if (isset($this->attr['height']))
		{
			$height = $this->attr['height'];
		}

		// Now look for an inline style.
		if (isset($this->attr['style']))
		{
			// Thanks to user gnarf from stackoverflow for this regular expression.
			$attributes = array();
			preg_match_all("/([\w-]+)\s*:\s*([^;]+)\s*;?/", $this->attr['style'], $matches, PREG_SET_ORDER);
			foreach ($matches as $match) {
			  $attributes[$match[1]] = $match[2];
			}

			// If there is a width in the style attributes:
			if (isset($attributes['width']) && $width == -1)
			{
				// check that the last two characters are px (pixels)
				if (strtolower(substr($attributes['width'], -2)) == 'px')
				{
					$proposed_width = substr($attributes['width'], 0, -2);
					// Now make sure that it's an integer and not something stupid.
					if (filter_var($proposed_width, FILTER_VALIDATE_INT))
					{
						$width = $proposed_width;
					}
				}
			}

			// If there is a width in the style attributes:
			if (isset($attributes['height']) && $height == -1)
			{
				// check that the last two characters are px (pixels)
				if (strtolower(substr($attributes['height'], -2)) == 'px')
				{
					$proposed_height = substr($attributes['height'], 0, -2);
					// Now make sure that it's an integer and not something stupid.
					if (filter_var($proposed_height, FILTER_VALIDATE_INT))
					{
						$height = $proposed_height;
					}
				}
			}

		}

		// Future enhancement:
		// Look in the tag to see if there is a class or id specified that has a height or width attribute to it.

		// Far future enhancement
		// Look at all the parent tags of this image to see if they specify a class or id that has an img selector that specifies a height or width
		// Note that in this case, the class or id will have the img subselector for it to apply to the image.

		// ridiculously far future development
		// If the class or id is specified in a SEPARATE css file thats not on the page, go get it and do what we were just doing for the ones on the page.

		$result = array('height' => $height,
						'width' => $width);
		return $result;
	}

	// camel naming conventions
	function getAllAttributes() {return $this->attr;}
	function getAttribute($name) {return $this->__get($name);}
	function setAttribute($name, $value) {$this->__set($name, $value);}
	function hasAttribute($name) {return $this->__isset($name);}
	function removeAttribute($name) {$this->__set($name, null);}
	function getElementById($id) {return $this->find("#$id", 0);}
	function getElementsById($id, $idx=null) {return $this->find("#$id", $idx);}
	function getElementByTagName($name) {return $this->find($name, 0);}
	function getElementsByTagName($name, $idx=null) {return $this->find($name, $idx);}
	function parentNode() {return $this->parent();}
	function childNodes($idx=-1) {return $this->children($idx);}
	function firstChild() {return $this->first_child();}
	function lastChild() {return $this->last_child();}
	function nextSibling() {return $this->next_sibling();}
	function previousSibling() {return $this->prev_sibling();}
	function hasChildNodes() {return $this->has_child();}
	function nodeName() {return $this->tag;}
	function appendChild($node) {$node->parent($this); return $node;}

}

/**
 * simple html dom parser
 * Paperg - in the find routine: allow us to specify that we want case insensitive testing of the value of the selector.
 * Paperg - change $size from protected to public so we can easily access it
 * Paperg - added ForceTagsClosed in the constructor which tells us whether we trust the html or not.  Default is to NOT trust it.
 *
 * @package PlaceLocalInclude
 */
class simple_html_dom
{
	public $root = null;
	public $nodes = array();
	public $callback = null;
	public $lowercase = false;
	// Used to keep track of how large the text was when we started.
	public $original_size;
	public $size;
	protected $pos;
	protected $doc;
	protected $char;
	protected $cursor;
	protected $parent;
	protected $noise = array();
	protected $token_blank = " \t\r\n";
	protected $token_equal = ' =/>';
	protected $token_slash = " />\r\n\t";
	protected $token_attr = ' >';
	// Note that this is referenced by a child node, and so it needs to be public for that node to see this information.
	public $_charset = '';
	public $_target_charset = '';
	protected $default_br_text = "";
	public $default_span_text = "";

	// use isset instead of in_array, performance boost about 30%...
	protected $self_closing_tags = array('img'=>1, 'br'=>1, 'input'=>1, 'meta'=>1, 'link'=>1, 'hr'=>1, 'base'=>1, 'embed'=>1, 'spacer'=>1);
	protected $block_tags = array('root'=>1, 'body'=>1, 'form'=>1, 'div'=>1, 'span'=>1, 'table'=>1);
	// Known sourceforge issue #2977341
	// B tags that are not closed cause us to return everything to the end of the document.
	protected $optional_closing_tags = array(
		'tr'=>array('tr'=>1, 'td'=>1, 'th'=>1),
		'th'=>array('th'=>1),
		'td'=>array('td'=>1),
		'li'=>array('li'=>1),
		'dt'=>array('dt'=>1, 'dd'=>1),
		'dd'=>array('dd'=>1, 'dt'=>1),
		'dl'=>array('dd'=>1, 'dt'=>1),
		'p'=>array('p'=>1),
		'nobr'=>array('nobr'=>1),
		'b'=>array('b'=>1),
		'option'=>array('option'=>1),
	);

	function __construct($str=null, $lowercase=true, $forceTagsClosed=true, $target_charset=DEFAULT_TARGET_CHARSET, $stripRN=true, $defaultBRText=DEFAULT_BR_TEXT, $defaultSpanText=DEFAULT_SPAN_TEXT)
	{
		if ($str)
		{
			if (preg_match("/^http:\/\//i",$str) || is_file($str))
			{
				$this->load_file($str);
			}
			else
			{
				$this->load($str, $lowercase, $stripRN, $defaultBRText, $defaultSpanText);
			}
		}
		// Forcing tags to be closed implies that we don't trust the html, but it can lead to parsing errors if we SHOULD trust the html.
		if (!$forceTagsClosed) {
			$this->optional_closing_array=array();
		}
		$this->_target_charset = $target_charset;
	}

	function __destruct()
	{
		$this->clear();
	}

	// load html from string
	function load($str, $lowercase=true, $stripRN=true, $defaultBRText=DEFAULT_BR_TEXT, $defaultSpanText=DEFAULT_SPAN_TEXT)
	{
		global $debug_object;

		// prepare
		$this->prepare($str, $lowercase, $stripRN, $defaultBRText, $defaultSpanText);
		// strip out comments
		$this->remove_noise("'<!--(.*?)-->'is");
		// strip out cdata
		$this->remove_noise("'<!\[CDATA\[(.*?)\]\]>'is", true);
		// Per sourceforge http://sourceforge.net/tracker/?func=detail&aid=2949097&group_id=218559&atid=1044037
		// Script tags removal now preceeds style tag removal.
		// strip out <script> tags
		$this->remove_noise("'<\s*script[^>]*[^/]>(.*?)<\s*/\s*script\s*>'is");
		$this->remove_noise("'<\s*script\s*>(.*?)<\s*/\s*script\s*>'is");
		// strip out <style> tags
		$this->remove_noise("'<\s*style[^>]*[^/]>(.*?)<\s*/\s*style\s*>'is");
		$this->remove_noise("'<\s*style\s*>(.*?)<\s*/\s*style\s*>'is");
		// strip out preformatted tags
		$this->remove_noise("'<\s*(?:code)[^>]*>(.*?)<\s*/\s*(?:code)\s*>'is");
		// strip out server side scripts
		$this->remove_noise("'(<\?)(.*?)(\?>)'s", true);
		// strip smarty scripts
		$this->remove_noise("'(\{\w)(.*?)(\})'s", true);

		// parsing
		while ($this->parse());
		// end
		$this->root->_[HDOM_INFO_END] = $this->cursor;
		$this->parse_charset();

		// make load function chainable
		return $this;

	}

	// load html from file
	function load_file()
	{
		$args = func_get_args();
		$this->load(call_user_func_array('file_get_contents', $args), true);
		// Throw an error if we can't properly load the dom.
		if (($error=error_get_last())!==null) {
			$this->clear();
			return false;
		}
	}

	// set callback function
	function set_callback($function_name)
	{
		$this->callback = $function_name;
	}

	// remove callback function
	function remove_callback()
	{
		$this->callback = null;
	}

	// save dom as string
	function save($filepath='')
	{
		$ret = $this->root->innertext();
		if ($filepath!=='') file_put_contents($filepath, $ret, LOCK_EX);
		return $ret;
	}

	// find dom node by css selector
	// Paperg - allow us to specify that we want case insensitive testing of the value of the selector.
	function find($selector, $idx=null, $lowercase=false)
	{
		return $this->root->find($selector, $idx, $lowercase);
	}

	// clean up memory due to php5 circular references memory leak...
	function clear()
	{
		foreach ($this->nodes as $n) {$n->clear(); $n = null;}
		// This add next line is documented in the sourceforge repository. 2977248 as a fix for ongoing memory leaks that occur even with the use of clear.
		if (isset($this->children)) foreach ($this->children as $n) {$n->clear(); $n = null;}
		if (isset($this->parent)) {$this->parent->clear(); unset($this->parent);}
		if (isset($this->root)) {$this->root->clear(); unset($this->root);}
		unset($this->doc);
		unset($this->noise);
	}

	function dump($show_attr=true)
	{
		$this->root->dump($show_attr);
	}

	// prepare HTML data and init everything
	protected function prepare($str, $lowercase=true, $stripRN=true, $defaultBRText=DEFAULT_BR_TEXT, $defaultSpanText=DEFAULT_SPAN_TEXT)
	{
		$this->clear();

		// set the length of content before we do anything to it.
		$this->size = strlen($str);
		// Save the original size of the html that we got in.  It might be useful to someone.
		$this->original_size = $this->size;

		//before we save the string as the doc...  strip out the \r \n's if we are told to.
		if ($stripRN) {
			$str = str_replace("\r", " ", $str);
			$str = str_replace("\n", " ", $str);

			// set the length of content since we have changed it.
			$this->size = strlen($str);
		}

		$this->doc = $str;
		$this->pos = 0;
		$this->cursor = 1;
		$this->noise = array();
		$this->nodes = array();
		$this->lowercase = $lowercase;
		$this->default_br_text = $defaultBRText;
		$this->default_span_text = $defaultSpanText;
		$this->root = new simple_html_dom_node($this);
		$this->root->tag = 'root';
		$this->root->_[HDOM_INFO_BEGIN] = -1;
		$this->root->nodetype = HDOM_TYPE_ROOT;
		$this->parent = $this->root;
		if ($this->size>0) $this->char = $this->doc[0];
	}

	// parse html content
	protected function parse()
	{
		if (($s = $this->copy_until_char('<'))==='')
		{
			return $this->read_tag();
		}

		// text
		$node = new simple_html_dom_node($this);
		++$this->cursor;
		$node->_[HDOM_INFO_TEXT] = $s;
		$this->link_nodes($node, false);
		return true;
	}

	// PAPERG - dkchou - added this to try to identify the character set of the page we have just parsed so we know better how to spit it out later.
	// NOTE:  IF you provide a routine called get_last_retrieve_url_contents_content_type which returns the CURLINFO_CONTENT_TYPE from the last curl_exec
	// (or the content_type header from the last transfer), we will parse THAT, and if a charset is specified, we will use it over any other mechanism.
	protected function parse_charset()
	{
		global $debug_object;

		$charset = null;

		if (function_exists('get_last_retrieve_url_contents_content_type'))
		{
			$contentTypeHeader = get_last_retrieve_url_contents_content_type();
			$success = preg_match('/charset=(.+)/', $contentTypeHeader, $matches);
			if ($success)
			{
				$charset = $matches[1];
				if (is_object($debug_object)) {$debug_object->debugLog(2, 'header content-type found charset of: ' . $charset);}
			}

		}

		if (empty($charset))
		{
			$el = $this->root->find('meta[http-equiv=Content-Type]',0);
			if (!empty($el))
			{
				$fullvalue = $el->content;
				if (is_object($debug_object)) {$debug_object->debugLog(2, 'meta content-type tag found' . $fullvalue);}

				if (!empty($fullvalue))
				{
					$success = preg_match('/charset=(.+)/', $fullvalue, $matches);
					if ($success)
					{
						$charset = $matches[1];
					}
					else
					{
						// If there is a meta tag, and they don't specify the character set, research says that it's typically ISO-8859-1
						if (is_object($debug_object)) {$debug_object->debugLog(2, 'meta content-type tag couldn\'t be parsed. using iso-8859 default.');}
						$charset = 'ISO-8859-1';
					}
				}
			}
		}

		// If we couldn't find a charset above, then lets try to detect one based on the text we got...
		if (empty($charset))
		{
			// Have php try to detect the encoding from the text given to us.
			$charset = mb_detect_encoding($this->root->plaintext . "ascii", $encoding_list = array( "UTF-8", "CP1252" ) );
			if (is_object($debug_object)) {$debug_object->debugLog(2, 'mb_detect found: ' . $charset);}

			// and if this doesn't work...  then we need to just wrongheadedly assume it's UTF-8 so that we can move on - cause this will usually give us most of what we need...
			if ($charset === false)
			{
				if (is_object($debug_object)) {$debug_object->debugLog(2, 'since mb_detect failed - using default of utf-8');}
				$charset = 'UTF-8';
			}
		}

		// Since CP1252 is a superset, if we get one of it's subsets, we want it instead.
		if ((strtolower($charset) == strtolower('ISO-8859-1')) || (strtolower($charset) == strtolower('Latin1')) || (strtolower($charset) == strtolower('Latin-1')))
		{
			if (is_object($debug_object)) {$debug_object->debugLog(2, 'replacing ' . $charset . ' with CP1252 as its a superset');}
			$charset = 'CP1252';
		}

		if (is_object($debug_object)) {$debug_object->debugLog(1, 'EXIT - ' . $charset);}

		return $this->_charset = $charset;
	}

	// read tag info
	protected function read_tag()
	{
		if ($this->char!=='<')
		{
			$this->root->_[HDOM_INFO_END] = $this->cursor;
			return false;
		}
		$begin_tag_pos = $this->pos;
		$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next

		// end tag
		if ($this->char==='/')
		{
			$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
			// This represents the change in the simple_html_dom trunk from revision 180 to 181.
			// $this->skip($this->token_blank_t);
			$this->skip($this->token_blank);
			$tag = $this->copy_until_char('>');

			// skip attributes in end tag
			if (($pos = strpos($tag, ' '))!==false)
				$tag = substr($tag, 0, $pos);

			$parent_lower = strtolower($this->parent->tag);
			$tag_lower = strtolower($tag);

			if ($parent_lower!==$tag_lower)
			{
				if (isset($this->optional_closing_tags[$parent_lower]) && isset($this->block_tags[$tag_lower]))
				{
					$this->parent->_[HDOM_INFO_END] = 0;
					$org_parent = $this->parent;

					while (($this->parent->parent) && strtolower($this->parent->tag)!==$tag_lower)
						$this->parent = $this->parent->parent;

					if (strtolower($this->parent->tag)!==$tag_lower) {
						$this->parent = $org_parent; // restore origonal parent
						if ($this->parent->parent) $this->parent = $this->parent->parent;
						$this->parent->_[HDOM_INFO_END] = $this->cursor;
						return $this->as_text_node($tag);
					}
				}
				else if (($this->parent->parent) && isset($this->block_tags[$tag_lower]))
				{
					$this->parent->_[HDOM_INFO_END] = 0;
					$org_parent = $this->parent;

					while (($this->parent->parent) && strtolower($this->parent->tag)!==$tag_lower)
						$this->parent = $this->parent->parent;

					if (strtolower($this->parent->tag)!==$tag_lower)
					{
						$this->parent = $org_parent; // restore origonal parent
						$this->parent->_[HDOM_INFO_END] = $this->cursor;
						return $this->as_text_node($tag);
					}
				}
				else if (($this->parent->parent) && strtolower($this->parent->parent->tag)===$tag_lower)
				{
					$this->parent->_[HDOM_INFO_END] = 0;
					$this->parent = $this->parent->parent;
				}
				else
					return $this->as_text_node($tag);
			}

			$this->parent->_[HDOM_INFO_END] = $this->cursor;
			if ($this->parent->parent) $this->parent = $this->parent->parent;

			$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
			return true;
		}

		$node = new simple_html_dom_node($this);
		$node->_[HDOM_INFO_BEGIN] = $this->cursor;
		++$this->cursor;
		$tag = $this->copy_until($this->token_slash);
		$node->tag_start = $begin_tag_pos;

		// doctype, cdata & comments...
		if (isset($tag[0]) && $tag[0]==='!') {
			$node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until_char('>');

			if (isset($tag[2]) && $tag[1]==='-' && $tag[2]==='-') {
				$node->nodetype = HDOM_TYPE_COMMENT;
				$node->tag = 'comment';
			} else {
				$node->nodetype = HDOM_TYPE_UNKNOWN;
				$node->tag = 'unknown';
			}
			if ($this->char==='>') $node->_[HDOM_INFO_TEXT].='>';
			$this->link_nodes($node, true);
			$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
			return true;
		}

		// text
		if ($pos=strpos($tag, '<')!==false) {
			$tag = '<' . substr($tag, 0, -1);
			$node->_[HDOM_INFO_TEXT] = $tag;
			$this->link_nodes($node, false);
			$this->char = $this->doc[--$this->pos]; // prev
			return true;
		}

		if (!preg_match("/^[\w-:]+$/", $tag)) {
			$node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until('<>');
			if ($this->char==='<') {
				$this->link_nodes($node, false);
				return true;
			}

			if ($this->char==='>') $node->_[HDOM_INFO_TEXT].='>';
			$this->link_nodes($node, false);
			$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
			return true;
		}

		// begin tag
		$node->nodetype = HDOM_TYPE_ELEMENT;
		$tag_lower = strtolower($tag);
		$node->tag = ($this->lowercase) ? $tag_lower : $tag;

		// handle optional closing tags
		if (isset($this->optional_closing_tags[$tag_lower]) )
		{
			while (isset($this->optional_closing_tags[$tag_lower][strtolower($this->parent->tag)]))
			{
				$this->parent->_[HDOM_INFO_END] = 0;
				$this->parent = $this->parent->parent;
			}
			$node->parent = $this->parent;
		}

		$guard = 0; // prevent infinity loop
		$space = array($this->copy_skip($this->token_blank), '', '');

		// attributes
		do
		{
			if ($this->char!==null && $space[0]==='')
			{
				break;
			}
			$name = $this->copy_until($this->token_equal);
			if ($guard===$this->pos)
			{
				$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
				continue;
			}
			$guard = $this->pos;

			// handle endless '<'
			if ($this->pos>=$this->size-1 && $this->char!=='>') {
				$node->nodetype = HDOM_TYPE_TEXT;
				$node->_[HDOM_INFO_END] = 0;
				$node->_[HDOM_INFO_TEXT] = '<'.$tag . $space[0] . $name;
				$node->tag = 'text';
				$this->link_nodes($node, false);
				return true;
			}

			// handle mismatch '<'
			if ($this->doc[$this->pos-1]=='<') {
				$node->nodetype = HDOM_TYPE_TEXT;
				$node->tag = 'text';
				$node->attr = array();
				$node->_[HDOM_INFO_END] = 0;
				$node->_[HDOM_INFO_TEXT] = substr($this->doc, $begin_tag_pos, $this->pos-$begin_tag_pos-1);
				$this->pos -= 2;
				$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
				$this->link_nodes($node, false);
				return true;
			}

			if ($name!=='/' && $name!=='') {
				$space[1] = $this->copy_skip($this->token_blank);
				$name = $this->restore_noise($name);
				if ($this->lowercase) $name = strtolower($name);
				if ($this->char==='=') {
					$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
					$this->parse_attr($node, $name, $space);
				}
				else {
					//no value attr: nowrap, checked selected...
					$node->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_NO;
					$node->attr[$name] = true;
					if ($this->char!='>') $this->char = $this->doc[--$this->pos]; // prev
				}
				$node->_[HDOM_INFO_SPACE][] = $space;
				$space = array($this->copy_skip($this->token_blank), '', '');
			}
			else
				break;
		} while ($this->char!=='>' && $this->char!=='/');

		$this->link_nodes($node, true);
		$node->_[HDOM_INFO_ENDSPACE] = $space[0];

		// check self closing
		if ($this->copy_until_char_escape('>')==='/')
		{
			$node->_[HDOM_INFO_ENDSPACE] .= '/';
			$node->_[HDOM_INFO_END] = 0;
		}
		else
		{
			// reset parent
			if (!isset($this->self_closing_tags[strtolower($node->tag)])) $this->parent = $node;
		}
		$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next

		// If it's a BR tag, we need to set it's text to the default text.
		// This way when we see it in plaintext, we can generate formatting that the user wants.
		// since a br tag never has sub nodes, this works well.
		if ($node->tag == "br")
		{
			$node->_[HDOM_INFO_INNER] = $this->default_br_text;
		}

		return true;
	}

	// parse attributes
	protected function parse_attr($node, $name, &$space)
	{
		// Per sourceforge: http://sourceforge.net/tracker/?func=detail&aid=3061408&group_id=218559&atid=1044037
		// If the attribute is already defined inside a tag, only pay atetntion to the first one as opposed to the last one.
		if (isset($node->attr[$name]))
		{
			return;
		}

		$space[2] = $this->copy_skip($this->token_blank);
		switch ($this->char) {
			case '"':
				$node->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_DOUBLE;
				$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
				$node->attr[$name] = $this->restore_noise($this->copy_until_char_escape('"'));
				$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
				break;
			case '\'':
				$node->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_SINGLE;
				$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
				$node->attr[$name] = $this->restore_noise($this->copy_until_char_escape('\''));
				$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
				break;
			default:
				$node->_[HDOM_INFO_QUOTE][] = HDOM_QUOTE_NO;
				$node->attr[$name] = $this->restore_noise($this->copy_until($this->token_attr));
		}
		// PaperG: Attributes should not have \r or \n in them, that counts as html whitespace.
		$node->attr[$name] = str_replace("\r", "", $node->attr[$name]);
		$node->attr[$name] = str_replace("\n", "", $node->attr[$name]);
		// PaperG: If this is a "class" selector, lets get rid of the preceeding and trailing space since some people leave it in the multi class case.
		if ($name == "class") {
			$node->attr[$name] = trim($node->attr[$name]);
		}
	}

	// link node's parent
	protected function link_nodes(&$node, $is_child)
	{
		$node->parent = $this->parent;
		$this->parent->nodes[] = $node;
		if ($is_child)
		{
			$this->parent->children[] = $node;
		}
	}

	// as a text node
	protected function as_text_node($tag)
	{
		$node = new simple_html_dom_node($this);
		++$this->cursor;
		$node->_[HDOM_INFO_TEXT] = '</' . $tag . '>';
		$this->link_nodes($node, false);
		$this->char = (++$this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
		return true;
	}

	protected function skip($chars)
	{
		$this->pos += strspn($this->doc, $chars, $this->pos);
		$this->char = ($this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
	}

	protected function copy_skip($chars)
	{
		$pos = $this->pos;
		$len = strspn($this->doc, $chars, $pos);
		$this->pos += $len;
		$this->char = ($this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
		if ($len===0) return '';
		return substr($this->doc, $pos, $len);
	}

	protected function copy_until($chars)
	{
		$pos = $this->pos;
		$len = strcspn($this->doc, $chars, $pos);
		$this->pos += $len;
		$this->char = ($this->pos<$this->size) ? $this->doc[$this->pos] : null; // next
		return substr($this->doc, $pos, $len);
	}

	protected function copy_until_char($char)
	{
		if ($this->char===null) return '';

		if (($pos = strpos($this->doc, $char, $this->pos))===false) {
			$ret = substr($this->doc, $this->pos, $this->size-$this->pos);
			$this->char = null;
			$this->pos = $this->size;
			return $ret;
		}

		if ($pos===$this->pos) return '';
		$pos_old = $this->pos;
		$this->char = $this->doc[$pos];
		$this->pos = $pos;
		return substr($this->doc, $pos_old, $pos-$pos_old);
	}

	protected function copy_until_char_escape($char)
	{
		if ($this->char===null) return '';

		$start = $this->pos;
		while (1)
		{
			if (($pos = strpos($this->doc, $char, $start))===false)
			{
				$ret = substr($this->doc, $this->pos, $this->size-$this->pos);
				$this->char = null;
				$this->pos = $this->size;
				return $ret;
			}

			if ($pos===$this->pos) return '';

			if ($this->doc[$pos-1]==='\\') {
				$start = $pos+1;
				continue;
			}

			$pos_old = $this->pos;
			$this->char = $this->doc[$pos];
			$this->pos = $pos;
			return substr($this->doc, $pos_old, $pos-$pos_old);
		}
	}

	// remove noise from html content
	// save the noise in the $this->noise array.
	protected function remove_noise($pattern, $remove_tag=false)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debugLogEntry(1); }

		$count = preg_match_all($pattern, $this->doc, $matches, PREG_SET_ORDER|PREG_OFFSET_CAPTURE);

		for ($i=$count-1; $i>-1; --$i)
		{
			$key = '___noise___'.sprintf('% 5d', count($this->noise)+1000);
			if (is_object($debug_object)) { $debug_object->debugLog(2, 'key is: ' . $key); }
			$idx = ($remove_tag) ? 0 : 1;
			$this->noise[$key] = $matches[$i][$idx][0];
			$this->doc = substr_replace($this->doc, $key, $matches[$i][$idx][1], strlen($matches[$i][$idx][0]));
		}

		// reset the length of content
		$this->size = strlen($this->doc);
		if ($this->size>0)
		{
			$this->char = $this->doc[0];
		}
	}

	// restore noise to html content
	function restore_noise($text)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debugLogEntry(1); }

		while (($pos=strpos($text, '___noise___'))!==false)
		{
			// Sometimes there is a broken piece of markup, and we don't GET the pos+11 etc... token which indicates a problem outside of us...
			if (strlen($text) > $pos+15)
			{
				$key = '___noise___'.$text[$pos+11].$text[$pos+12].$text[$pos+13].$text[$pos+14].$text[$pos+15];
				if (is_object($debug_object)) { $debug_object->debugLog(2, 'located key of: ' . $key); }

				if (isset($this->noise[$key]))
				{
					$text = substr($text, 0, $pos).$this->noise[$key].substr($text, $pos+16);
				}
				else
				{
					// do this to prevent an infinite loop.
					$text = substr($text, 0, $pos).'UNDEFINED NOISE FOR KEY: '.$key . substr($text, $pos+16);
				}
			}
			else
			{
				// There is no valid key being given back to us... We must get rid of the ___noise___ or we will have a problem.
				$text = substr($text, 0, $pos).'NO NUMERIC NOISE KEY' . substr($text, $pos+11);
			}
		}
		return $text;
	}

	// Sometimes we NEED one of the noise elements.
	function search_noise($text)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debugLogEntry(1); }

		foreach($this->noise as $noiseElement)
		{
			if (strpos($noiseElement, $text)!==false)
			{
				return $noiseElement;
			}
		}
	}
	function __toString()
	{
		return $this->root->innertext();
	}

	function __get($name)
	{
		switch ($name)
		{
			case 'outertext':
				return $this->root->innertext();
			case 'innertext':
				return $this->root->innertext();
			case 'plaintext':
				return $this->root->text();
			case 'charset':
				return $this->_charset;
			case 'target_charset':
				return $this->_target_charset;
		}
	}

	// camel naming conventions
	function childNodes($idx=-1) {return $this->root->childNodes($idx);}
	function firstChild() {return $this->root->first_child();}
	function lastChild() {return $this->root->last_child();}
	function createElement($name, $value=null) {return @str_get_html("<$name>$value</$name>")->first_child();}
	function createTextNode($value) {return @end(str_get_html($value)->nodes);}
	function getElementById($id) {return $this->find("#$id", 0);}
	function getElementsById($id, $idx=null) {return $this->find("#$id", $idx);}
	function getElementByTagName($name) {return $this->find($name, 0);}
	function getElementsByTagName($name, $idx=-1) {return $this->find($name, $idx);}
	function loadFile() {$args = func_get_args();$this->load_file($args);}
}

?>