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simple_html_dom.php

<?php
/**
 * Website: http://sourceforge.net/projects/simplehtmldom/
 * Additional projects: http://sourceforge.net/projects/debugobject/
 * Acknowledge: Jose Solorzano (https://sourceforge.net/projects/php-html/)
 *
 * Licensed under The MIT License
 * See the LICENSE file in the project root for more information.
 *
 * Authors:
 *   S.C. Chen
 *   John Schlick
 *   Rus Carroll
 *   logmanoriginal
 *
 * Contributors:
 *   Yousuke Kumakura
 *   Vadim Voituk
 *   Antcs
 *
 * Version Rev. 1.9.1 (291)
 */

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);

defined('DEFAULT_TARGET_CHARSET') || define('DEFAULT_TARGET_CHARSET', 'UTF-8');
defined('DEFAULT_BR_TEXT') || define('DEFAULT_BR_TEXT', "\r\n");
defined('DEFAULT_SPAN_TEXT') || define('DEFAULT_SPAN_TEXT', ' ');
defined('MAX_FILE_SIZE') || define('MAX_FILE_SIZE', 600000);
define('HDOM_SMARTY_AS_TEXT', 1);

function seedprod_file_get_html(
	$url,
	$use_include_path = false,
	$context = null,
	$offset = 0,
	$maxLen = -1,
	$lowercase = true,
	$forceTagsClosed = true,
	$target_charset = DEFAULT_TARGET_CHARSET,
	$stripRN = true,
	$defaultBRText = DEFAULT_BR_TEXT,
	$defaultSpanText = DEFAULT_SPAN_TEXT)
{
	if($maxLen <= 0) { $maxLen = MAX_FILE_SIZE; }

$dom = new seedprod_simple_html_dom(
		null,
		$lowercase,
		$forceTagsClosed,
		$target_charset,
		$stripRN,
		$defaultBRText,
		$defaultSpanText
	);

/**
	 * For sourceforge users: uncomment the next line and comment the
	 * retrieve_url_contents line 2 lines down if it is not already done.
	 */
	$contents = file_get_contents(
		$url,
		$use_include_path,
		$context,
		$offset,
		$maxLen
	);
	// $contents = retrieve_url_contents($url);

if (empty($contents) || strlen($contents) > $maxLen) {
		$dom->clear();
		return false;
	}

return $dom->load($contents, $lowercase, $stripRN);
}

function seedprod_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 seedprod_simple_html_dom(
		null,
		$lowercase,
		$forceTagsClosed,
		$target_charset,
		$stripRN,
		$defaultBRText,
		$defaultSpanText
	);

if (empty($str) || strlen($str) > MAX_FILE_SIZE) {
		$dom->clear();
		return false;
	}

return $dom->load($str, $lowercase, $stripRN);
}

function seedprod_dump_html_tree($node, $show_attr = true, $deep = 0)
{
	$node->dump($node);
}

class seedprod_seedprod_simple_html_dom_node
{
	public $nodetype = HDOM_TYPE_TEXT;
	public $tag = 'text';
	public $attr = array();
	public $children = array();
	public $nodes = array();
	public $parent = null;
	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();
	}

function clear()
	{
		$this->dom = null;
		$this->nodes = null;
		$this->parent = null;
		$this->children = null;
	}

function dump($show_attr = true, $depth = 0)
	{
		echo str_repeat("\t", $depth) . $this->tag;

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

echo "\n";

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

function dump_node($echo = true)
	{
		$string = $this->tag;

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

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;
	}

function has_child()
	{
		return !empty($this->children);
	}

function children($idx = -1)
	{
		if ($idx === -1) {
			return $this->children;
		}

if (isset($this->children[$idx])) {
			return $this->children[$idx];
		}

return null;
	}

function first_child()
	{
		if (count($this->children) > 0) {
			return $this->children[0];
		}
		return null;
	}

function last_child()
	{
		if (count($this->children) > 0) {
			return end($this->children);
		}
		return null;
	}

function next_sibling()
	{
		if ($this->parent === null) {
			return null;
		}

$idx = array_search($this, $this->parent->children, true);

if ($idx !== false && isset($this->parent->children[$idx + 1])) {
			return $this->parent->children[$idx + 1];
		}

return null;
	}

function prev_sibling()
	{
		if ($this->parent === null) {
			return null;
		}

$idx = array_search($this, $this->parent->children, true);

if ($idx !== false && $idx > 0) {
			return $this->parent->children[$idx - 1];
		}

return null;
	}

function find_ancestor_tag($tag)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }

if ($this->parent === null) {
			return null;
		}

$ancestor = $this->parent;

while (!is_null($ancestor)) {
			if (is_object($debug_object)) {
				$debug_object->debug_log(2, 'Current tag is: ' . $ancestor->tag);
			}

if ($ancestor->tag === $tag) {
				break;
			}

$ancestor = $ancestor->parent;
		}

return $ancestor;
	}

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;
	}

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->debug_log(1, 'Innertext of tag: ' . $this->tag . $text);
		}

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

// todo: What is the use of this callback? Remove?
		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]);
		}

$ret = '';

if ($this->dom && $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]) {
			$ret = $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]->makeup();
		}

if (isset($this->_[HDOM_INFO_INNER])) {
			// todo: <br> should either never have HDOM_INFO_INNER or always
			if ($this->tag !== 'br') {
				$ret .= $this->_[HDOM_INFO_INNER];
			}
		} elseif ($this->nodes) {
			foreach ($this->nodes as $n) {
				$ret .= $this->convert_text($n->outertext());
			}
		}

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

return $ret;
	}

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 $n) {
				// Start paragraph after a blank line
				if ($n->tag === 'p') {
					$ret = trim($ret) . "\n\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 ($n->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;
	}

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] . '>';
	}

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);
			$cmd = ' '; // Combinator

// 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, $cmd, $lowercase);
				}

$head = $ret;
				$cmd = $selectors[$c][$l][4]; // Next Combinator
			}

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 $found; }
		elseif ($idx < 0) { $idx = count($found) + $idx; }
		return (isset($found[$idx])) ? $found[$idx] : null;
	}

protected function seek($selector, &$ret, $parent_cmd, $lowercase = false)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }

list($tag, $id, $class, $attributes, $cmb) = $selector;
		$nodes = array();

if ($parent_cmd === ' ') { // Descendant Combinator
			// Find parent closing tag if the current element doesn't have a closing
			// tag (i.e. void element)
			$end = (!empty($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];
			}

// Get list of target nodes
			$nodes_start = $this->_[HDOM_INFO_BEGIN] + 1;
			$nodes_count = $end - $nodes_start;
			$nodes = array_slice($this->dom->nodes, $nodes_start, $nodes_count, true);
		} elseif ($parent_cmd === '>') { // Child Combinator
			$nodes = $this->children;
		} elseif ($parent_cmd === '+'
			&& $this->parent
			&& in_array($this, $this->parent->children)) { // Next-Sibling Combinator
				$index = array_search($this, $this->parent->children, true) + 1;
				if ($index < count($this->parent->children))
					$nodes[] = $this->parent->children[$index];
		} elseif ($parent_cmd === '~'
			&& $this->parent
			&& in_array($this, $this->parent->children)) { // Subsequent Sibling Combinator
				$index = array_search($this, $this->parent->children, true);
				$nodes = array_slice($this->parent->children, $index);
		}

// Go throgh each element starting at this element until the end tag
		// Note: If this element is a void tag, any previous void element is
		// skipped.
		foreach($nodes as $node) {
			$pass = true;

// Skip root nodes
			if(!$node->parent) {
				$pass = false;
			}

// Handle 'text' selector
			if($pass && $tag === 'text' && $node->tag === 'text') {
				$ret[array_search($node, $this->dom->nodes, true)] = 1;
				unset($node);
				continue;
			}

// Skip if node isn't a child node (i.e. text nodes)
			if($pass && !in_array($node, $node->parent->children, true)) {
				$pass = false;
			}

// Skip if tag doesn't match
			if ($pass && $tag !== '' && $tag !== $node->tag && $tag !== '*') {
				$pass = false;
			}

// Skip if ID doesn't exist
			if ($pass && $id !== '' && !isset($node->attr['id'])) {
				$pass = false;
			}

// Check if ID matches
			if ($pass && $id !== '' && isset($node->attr['id'])) {
				// Note: Only consider the first ID (as browsers do)
				$node_id = explode(' ', trim($node->attr['id']))[0];

if($id !== $node_id) { $pass = false; }
			}

// Check if all class(es) exist
			if ($pass && $class !== '' && is_array($class) && !empty($class)) {
				if (isset($node->attr['class'])) {
					$node_classes = explode(' ', $node->attr['class']);

if ($lowercase) {
						$node_classes = array_map('strtolower', $node_classes);
					}

foreach($class as $c) {
						if(!in_array($c, $node_classes)) {
							$pass = false;
							break;
						}
					}
				} else {
					$pass = false;
				}
			}

// Check attributes
			if ($pass
				&& $attributes !== ''
				&& is_array($attributes)
				&& !empty($attributes)) {
					foreach($attributes as $a) {
						list (
							$att_name,
							$att_expr,
							$att_val,
							$att_inv,
							$att_case_sensitivity
						) = $a;

// Handle indexing attributes (i.e. "[2]")
						/**
						 * Note: This is not supported by the CSS Standard but adds
						 * the ability to select items compatible to XPath (i.e.
						 * the 3rd element within it's parent).
						 *
						 * Note: This doesn't conflict with the CSS Standard which
						 * doesn't work on numeric attributes anyway.
						 */
						if (is_numeric($att_name)
							&& $att_expr === ''
							&& $att_val === '') {
								$count = 0;

// Find index of current element in parent
								foreach ($node->parent->children as $c) {
									if ($c->tag === $node->tag) ++$count;
									if ($c === $node) break;
								}

// If this is the correct node, continue with next
								// attribute
								if ($count === (int)$att_name) continue;
						}

// Check attribute availability
						if ($att_inv) { // Attribute should NOT be set
							if (isset($node->attr[$att_name])) {
								$pass = false;
								break;
							}
						} else { // Attribute should be set
							// todo: "plaintext" is not a valid CSS selector!
							if ($att_name !== 'plaintext'
								&& !isset($node->attr[$att_name])) {
									$pass = false;
									break;
							}
						}

// Continue with next attribute if expression isn't defined
						if ($att_expr === '') continue;

// If they have told us that this is a "plaintext"
						// search then we want the plaintext of the node - right?
						// todo "plaintext" is not a valid CSS selector!
						if ($att_name === 'plaintext') {
							$nodeKeyValue = $node->text();
						} else {
							$nodeKeyValue = $node->attr[$att_name];
						}

if (is_object($debug_object)) {
							$debug_object->debug_log(2,
								'testing node: '
								. $node->tag
								. ' for attribute: '
								. $att_name
								. $att_expr
								. $att_val
								. ' where nodes value is: '
								. $nodeKeyValue
							);
						}

// If lowercase is set, do a case insensitive test of
						// the value of the selector.
						if ($lowercase) {
							$check = $this->match(
								$att_expr,
								strtolower($att_val),
								strtolower($nodeKeyValue),
								$att_case_sensitivity
							);
						} else {
							$check = $this->match(
								$att_expr,
								$att_val,
								$nodeKeyValue,
								$att_case_sensitivity
							);
						}

if (is_object($debug_object)) {
							$debug_object->debug_log(2,
								'after match: '
								. ($check ? 'true' : 'false')
							);
						}

if (!$check) {
							$pass = false;
							break;
						}
					}
			}

// Found a match. Add to list and clear node
			if ($pass) $ret[$node->_[HDOM_INFO_BEGIN]] = 1;
			unset($node);
		}
		// It's passed by reference so this is actually what this function returns.
		if (is_object($debug_object)) {
			$debug_object->debug_log(1, 'EXIT - ret: ', $ret);
		}
	}

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

if ($case_sensitivity === 'i') {
			$pattern = strtolower($pattern);
			$value = strtolower($value);
		}

switch ($exp) {
			case '=':
				return ($value === $pattern);
			case '!=':
				return ($value !== $pattern);
			case '^=':
				return preg_match('/^' . preg_quote($pattern, '/') . '/', $value);
			case '$=':
				return preg_match('/' . preg_quote($pattern, '/') . '$/', $value);
			case '*=':
				return preg_match('/' . preg_quote($pattern, '/') . '/', $value);
			case '|=':
				/**
				 * [att|=val]
				 *
				 * Represents an element with the att attribute, its value
				 * either being exactly "val" or beginning with "val"
				 * immediately followed by "-" (U+002D).
				 */
				return strpos($value, $pattern) === 0;
			case '~=':
				/**
				 * [att~=val]
				 *
				 * Represents an element with the att attribute whose value is a
				 * whitespace-separated list of words, one of which is exactly
				 * "val". If "val" contains whitespace, it will never represent
				 * anything (since the words are separated by spaces). Also if
				 * "val" is the empty string, it will never represent anything.
				 */
				return in_array($pattern, explode(' ', trim($value)), true);
		}
		return false;
	}

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

/**
		 * Pattern of CSS selectors, modified from mootools (https://mootools.net/)
		 *
		 * Paperg: Add the colon to the attribute, so that it properly finds
		 * <tag attr:ibute="something" > like google does.
		 *
		 * Note: if you try to look at this attribute, you MUST use getAttribute
		 * since $dom->x:y will fail the php syntax check.
		 *
		 * Notice the \[ starting the attribute? 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.
		 *
		 * Matches selectors in this order:
		 *
		 * [0] - full match
		 *
		 * [1] - tag name
		 *     ([\w:\*-]*)
		 *     Matches the tag name consisting of zero or more words, colons,
		 *     asterisks and hyphens.
		 *
		 * [2] - id name
		 *     (?:\#([\w-]+))
		 *     Optionally matches a id name, consisting of an "#" followed by
		 *     the id name (one or more words and hyphens).
		 *
		 * [3] - class names (including dots)
		 *     (?:\.([\w\.-]+))?
		 *     Optionally matches a list of classs, consisting of an "."
		 *     followed by the class name (one or more words and hyphens)
		 *     where multiple classes can be chained (i.e. ".foo.bar.baz")
		 *
		 * [4] - attributes
		 *     ((?:\[@?(?:!?[\w:-]+)(?:(?:[!*^$|~]?=)[\"']?(?:.*?)[\"']?)?(?:\s*?(?:[iIsS])?)?\])+)?
		 *     Optionally matches the attributes list
		 *
		 * [5] - separator
		 *     ([\/, >+~]+)
		 *     Matches the selector list separator
		 */
		// phpcs:ignore Generic.Files.LineLength
		$pattern = "/([\w:\*-]*)(?:\#([\w-]+))?(?:|\.([\w\.-]+))?((?:\[@?(?:!?[\w:-]+)(?:(?:[!*^$|~]?=)[\"']?(?:.*?)[\"']?)?(?:\s*?(?:[iIsS])?)?\])+)?([\/, >+~]+)/is";

preg_match_all(
			$pattern,
			trim($selector_string) . ' ', // Add final ' ' as pseudo separator
			$matches,
			PREG_SET_ORDER
		);

if (is_object($debug_object)) {
			$debug_object->debug_log(2, 'Matches Array: ', $matches);
		}

$selectors = array();
		$result = array();

foreach ($matches as $m) {
			$m[0] = trim($m[0]);

// Skip NoOps
			if ($m[0] === '' || $m[0] === '/' || $m[0] === '//') { continue; }

// Convert to lowercase
			if ($this->dom->lowercase) {
				$m[1] = strtolower($m[1]);
			}

// Extract classes
			if ($m[3] !== '') { $m[3] = explode('.', $m[3]); }

/* Extract attributes (pattern based on the pattern above!)

* [0] - full match
			 * [1] - attribute name
			 * [2] - attribute expression
			 * [3] - attribute value
			 * [4] - case sensitivity
			 *
			 * Note: Attributes can be negated with a "!" prefix to their name
			 */
			if($m[4] !== '') {
				preg_match_all(
					"/\[@?(!?[\w:-]+)(?:([!*^$|~]?=)[\"']?(.*?)[\"']?)?(?:\s+?([iIsS])?)?\]/is",
					trim($m[4]),
					$attributes,
					PREG_SET_ORDER
				);

// Replace element by array
				$m[4] = array();

foreach($attributes as $att) {
					// Skip empty matches
					if(trim($att[0]) === '') { continue; }

$inverted = (isset($att[1][0]) && $att[1][0] === '!');
					$m[4][] = array(
						$inverted ? substr($att[1], 1) : $att[1], // Name
						(isset($att[2])) ? $att[2] : '', // Expression
						(isset($att[3])) ? $att[3] : '', // Value
						$inverted, // Inverted Flag
						(isset($att[4])) ? strtolower($att[4]) : '', // Case-Sensitivity
					);
				}
			}

// Sanitize Separator
			if ($m[5] !== '' && trim($m[5]) === '') { // Descendant Separator
				$m[5] = ' ';
			} else { // Other Separator
				$m[5] = trim($m[5]);
			}

// Clear Separator if it's a Selector List
			if ($is_list = ($m[5] === ',')) { $m[5] = ''; }

// Remove full match before adding to results
			array_shift($m);
			$result[] = $m;

if ($is_list) { // Selector List
				$selectors[] = $result;
				$result = array();
			}
		}

if (count($result) > 0) { $selectors[] = $result; }
		return $selectors;
	}

function __set($name, $value)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debug_log_entry(1); }

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]); }
	}

function convert_text($text)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debug_log_entry(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->debug_log(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;
	}

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 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;
	}

function save($filepath = '')
	{
		$ret = $this->outertext();

if ($filepath !== '') {
			file_put_contents($filepath, $ret, LOCK_EX);
		}

return $ret;
	}

function addClass($class)
	{
		if (is_string($class)) {
			$class = explode(' ', $class);
		}

if (is_array($class)) {
			foreach($class as $c) {
				if (isset($this->class)) {
					if ($this->hasClass($c)) {
						continue;
					} else {
						$this->class .= ' ' . $c;
					}
				} else {
					$this->class = $c;
				}
			}
		} else {
			if (is_object($debug_object)) {
				$debug_object->debug_log(2, 'Invalid type: ', gettype($class));
			}
		}
	}

function hasClass($class)
	{
		if (is_string($class)) {
			if (isset($this->class)) {
				return in_array($class, explode(' ', $this->class), true);
			}
		} else {
			if (is_object($debug_object)) {
				$debug_object->debug_log(2, 'Invalid type: ', gettype($class));
			}
		}

return false;
	}

function removeClass($class = null)
	{
		if (!isset($this->class)) {
			return;
		}

if (is_null($class)) {
			$this->removeAttribute('class');
			return;
		}

if (is_string($class)) {
			$class = explode(' ', $class);
		}

if (is_array($class)) {
			$class = array_diff(explode(' ', $this->class), $class);
			if (empty($class)) {
				$this->removeAttribute('class');
			} else {
				$this->class = implode(' ', $class);
			}
		}
	}

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 remove()
	{
		if ($this->parent) {
			$this->parent->removeChild($this);
		}
	}

function removeChild($node)
	{
		$nidx = array_search($node, $this->nodes, true);
		$cidx = array_search($node, $this->children, true);
		$didx = array_search($node, $this->dom->nodes, true);

if ($nidx !== false && $cidx !== false && $didx !== false) {

foreach($node->children as $child) {
				$node->removeChild($child);
			}

foreach($node->nodes as $entity) {
				$enidx = array_search($entity, $node->nodes, true);
				$edidx = array_search($entity, $node->dom->nodes, true);

if ($enidx !== false && $edidx !== false) {
					unset($node->nodes[$enidx]);
					unset($node->dom->nodes[$edidx]);
				}
			}

unset($this->nodes[$nidx]);
			unset($this->children[$cidx]);
			unset($this->dom->nodes[$didx]);

$node->clear();

}
	}

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;
	}

}

class seedprod_simple_html_dom
{
	public $root = null;
	public $nodes = array();
	public $callback = null;
	public $lowercase = false;
	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 = ' >';

public $_charset = '';
	public $_target_charset = '';

protected $default_br_text = '';

public $default_span_text = '';

protected $self_closing_tags = array(
		'area' => 1,
		'base' => 1,
		'br' => 1,
		'col' => 1,
		'embed' => 1,
		'hr' => 1,
		'img' => 1,
		'input' => 1,
		'link' => 1,
		'meta' => 1,
		'param' => 1,
		'source' => 1,
		'track' => 1,
		'wbr' => 1
	);
	protected $block_tags = array(
		'body' => 1,
		'div' => 1,
		'form' => 1,
		'root' => 1,
		'span' => 1,
		'table' => 1
	);
	protected $optional_closing_tags = array(
		// Not optional, see
		// https://www.w3.org/TR/html/textlevel-semantics.html#the-b-element
		'b' => array('b' => 1),
		'dd' => array('dd' => 1, 'dt' => 1),
		// Not optional, see
		// https://www.w3.org/TR/html/grouping-content.html#the-dl-element
		'dl' => array('dd' => 1, 'dt' => 1),
		'dt' => array('dd' => 1, 'dt' => 1),
		'li' => array('li' => 1),
		'optgroup' => array('optgroup' => 1, 'option' => 1),
		'option' => array('optgroup' => 1, 'option' => 1),
		'p' => array('p' => 1),
		'rp' => array('rp' => 1, 'rt' => 1),
		'rt' => array('rp' => 1, 'rt' => 1),
		'td' => array('td' => 1, 'th' => 1),
		'th' => array('td' => 1, 'th' => 1),
		'tr' => array('td' => 1, 'th' => 1, 'tr' => 1),
	);

$this->_target_charset = $target_charset;
	}

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

function load(
		$str,
		$lowercase = true,
		$stripRN = true,
		$defaultBRText = DEFAULT_BR_TEXT,
		$defaultSpanText = DEFAULT_SPAN_TEXT,
		$options = 0)
	{
		global $debug_object;

// prepare
		$this->prepare($str, $lowercase, $defaultBRText, $defaultSpanText);

// 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 the \r \n's if we are told to.
		if ($stripRN) {
			$this->doc = str_replace("\r", ' ', $this->doc);
			$this->doc = str_replace("\n", ' ', $this->doc);

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

// strip out cdata
		$this->remove_noise("'<!\[CDATA\[(.*?)\]\]>'is", true);
		// strip out comments
		$this->remove_noise("''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);

if($options & HDOM_SMARTY_AS_TEXT) { // Strip Smarty scripts
			$this->remove_noise("'(\{\w)(.*?)(\})'s", true);
		}

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

// make load function chainable
		return $this;
	}

function load_file()
	{
		$args = func_get_args();

if(($doc = call_user_func_array('file_get_contents', $args)) !== false) {
			$this->load($doc, true);
		} else {
			return false;
		}
	}

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

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

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

function find($selector, $idx = null, $lowercase = false)
	{
		return $this->root->find($selector, $idx, $lowercase);
	}

function clear()
	{
		if (isset($this->nodes)) {
			foreach ($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);
	}

protected function prepare(
		$str, $lowercase = true,
		$defaultBRText = DEFAULT_BR_TEXT,
		$defaultSpanText = DEFAULT_SPAN_TEXT)
	{
		$this->clear();

$this->doc = trim($str);
		$this->size = strlen($this->doc);
		$this->original_size = $this->size; // original size of the html
		$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;
		$this->root = new seedprod_seedprod_simple_html_dom_node($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]; }
	}

protected function parse()
	{
		while (true) {
			// Read next tag if there is no text between current position and the
			// next opening tag.
			if (($s = $this->copy_until_char('<')) === '') {
				if($this->read_tag()) {
					continue;
				} else {
					return true;
				}
			}

// Add a text node for text between tags
			$node = new seedprod_seedprod_simple_html_dom_node($this);
			++$this->cursor;
			$node->_[HDOM_INFO_TEXT] = $s;
			$this->link_nodes($node, false);
		}
	}

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->debug_log(2,
						'header content-type found charset of: '
						. $charset
					);
				}
			}
		}

if (empty($charset)) {
			// https://www.w3.org/TR/html/document-metadata.html#statedef-http-equiv-content-type
			$el = $this->root->find('meta[http-equiv=Content-Type]', 0, true);

if (!empty($el)) {
				$fullvalue = $el->content;
				if (is_object($debug_object)) {
					$debug_object->debug_log(2,
						'meta content-type tag found'
						. $fullvalue
					);
				}

if (!empty($fullvalue)) {
					$success = preg_match(
						'/charset=(.+)/i',
						$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->debug_log(2,
								'meta content-type tag couldn\'t be parsed. using iso-8859 default.'
							);
						}

$charset = 'ISO-8859-1';
					}
				}
			}
		}

if (empty($charset)) {
			// https://www.w3.org/TR/html/document-metadata.html#character-encoding-declaration
			if ($meta = $this->root->find('meta[charset]', 0)) {
				$charset = $meta->charset;
				if (is_object($debug_object)) {
					$debug_object->debug_log(2, 'meta charset: ' . $charset);
				}
			}
		}

if (empty($charset)) {
			// Try to guess the charset based on the content
			// Requires Multibyte String (mbstring) support (optional)
			if (function_exists('mb_detect_encoding')) {
				/**
				 * mb_detect_encoding() is not intended to distinguish between
				 * charsets, especially single-byte charsets. Its primary
				 * purpose is to detect which multibyte encoding is in use,
				 * i.e. UTF-8, UTF-16, shift-JIS, etc.
				 *
				 * -- https://bugs.php.net/bug.php?id=38138
				 *
				 * Adding both CP1251/ISO-8859-5 and CP1252/ISO-8859-1 will
				 * always result in CP1251/ISO-8859-5 and vice versa.
				 *
				 * Thus, only detect if it's either UTF-8 or CP1252/ISO-8859-1
				 * to stay compatible.
				 */
				$encoding = mb_detect_encoding(
					$this->doc,
					array( 'UTF-8', 'CP1252', 'ISO-8859-1' )
				);

if ($encoding === 'CP1252' || $encoding === 'ISO-8859-1') {
					// Due to a limitation of mb_detect_encoding
					// 'CP1251'/'ISO-8859-5' will be detected as
					// 'CP1252'/'ISO-8859-1'. This will cause iconv to fail, in
					// which case we can simply assume it is the other charset.
					if (!@iconv('CP1252', 'UTF-8', $this->doc)) {
						$encoding = 'CP1251';
					}
				}

if ($encoding !== false) {
					$charset = $encoding;
					if (is_object($debug_object)) {
						$debug_object->debug_log(2, 'mb_detect: ' . $charset);
					}
				}
			}
		}

if (empty($charset)) {
			// Assume it's UTF-8 as it is the most likely charset to be used
			$charset = 'UTF-8';
			if (is_object($debug_object)) {
				$debug_object->debug_log(2, 'No match found, assume ' . $charset);
			}
		}

// Since CP1252 is a superset, if we get one of it's subsets, we want
		// it instead.
		if ((strtolower($charset) == 'iso-8859-1')
			|| (strtolower($charset) == 'latin1')
			|| (strtolower($charset) == 'latin-1')) {
			$charset = 'CP1252';
			if (is_object($debug_object)) {
				$debug_object->debug_log(2,
					'replacing ' . $charset . ' with CP1252 as its a superset'
				);
			}
		}

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

return $this->_charset = $charset;
	}

protected function read_tag()
	{
		// Set end position if no further tags found
		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

// Skip whitespace in end tags (i.e. in "</   html>")
			$this->skip($this->token_blank);
			$tag = $this->copy_until_char('>');

// Skip attributes in end tags
			if (($pos = strpos($tag, ' ')) !== false) {
				$tag = substr($tag, 0, $pos);
			}

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

// The end tag is supposed to close the parent tag. Handle situations
			// when it doesn't
			if ($parent_lower !== $tag_lower) {
				// Parent tag does not have to be closed necessarily (optional closing tag)
				// Current tag is a block tag, so it may close an ancestor
				if (isset($this->optional_closing_tags[$parent_lower])
					&& isset($this->block_tags[$tag_lower])) {

$this->parent->_[HDOM_INFO_END] = 0;
					$org_parent = $this->parent;

// Traverse ancestors to find a matching opening tag
					// Stop at root node
					while (($this->parent->parent)
						&& strtolower($this->parent->tag) !== $tag_lower
					){
						$this->parent = $this->parent->parent;
					}

// If we don't have a match add current tag as text node
					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);
					}
				} elseif (($this->parent->parent)
					&& isset($this->block_tags[$tag_lower])
				) {
					// Grandparent exists and current tag is a block tag, so our
					// parent doesn't have an end tag
					$this->parent->_[HDOM_INFO_END] = 0; // No end tag
					$org_parent = $this->parent;

// Traverse ancestors to find a matching opening tag
					// Stop at root node
					while (($this->parent->parent)
						&& strtolower($this->parent->tag) !== $tag_lower
					) {
						$this->parent = $this->parent->parent;
					}

// If we don't have a match add current tag as text node
					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);
					}
				} elseif (($this->parent->parent)
					&& strtolower($this->parent->parent->tag) === $tag_lower
				) { // Grandparent exists and current tag closes it
					$this->parent->_[HDOM_INFO_END] = 0;
					$this->parent = $this->parent->parent;
				} else { // Random tag, add as text node
					return $this->as_text_node($tag);
				}
			}

// Set end position of parent tag to current cursor position
			$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;
		}

// start tag
		$node = new seedprod_seedprod_simple_html_dom_node($this);
		$node->_[HDOM_INFO_BEGIN] = $this->cursor;
		++$this->cursor;
		$tag = $this->copy_until($this->token_slash); // Get tag name
		$node->tag_start = $begin_tag_pos;

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

if (isset($tag[2]) && $tag[1] === '-' && $tag[2] === '-') { // Comment ("<!--")
				$node->nodetype = HDOM_TYPE_COMMENT;
				$node->tag = 'comment';
			} else { // Could be doctype or CDATA but we don't care
				$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;
		}

// The start tag cannot contain another start tag, if so add as text
		// i.e. "<<html>"
		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;
		}

// Handle invalid tag names (i.e. "<html#doc>")
		if (!preg_match('/^\w[\w:-]*$/', $tag)) {
			$node->_[HDOM_INFO_TEXT] = '<' . $tag . $this->copy_until('<>');

// Next char is the beginning of a new tag, don't touch it.
			if ($this->char === '<') {
				$this->link_nodes($node, false);
				return true;
			}

// Next char closes current tag, add and be done with it.
			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, add new node
		$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])) {
			// Traverse ancestors to close all optional closing tags
			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

// [0] Space between tag and first attribute
		$space = array($this->copy_skip($this->token_blank), '', '');

// attributes
		do {
			// Everything until the first equal sign should be the attribute name
			$name = $this->copy_until($this->token_equal);

if ($name === '' && $this->char !== null && $space[0] === '') {
				break;
			}

if ($guard === $this->pos) { // Escape infinite loop
				$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
				continue;
			}

$guard = $this->pos;

// handle endless '<'
			// Out of bounds before the tag ended
			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 '<'
			// Attributes cannot start after opening tag
			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 !== '') { // this is a attribute name
				// [1] Whitespace after attribute name
				$space[1] = $this->copy_skip($this->token_blank);

$name = $this->restore_noise($name); // might be a noisy name

if ($this->lowercase) { $name = strtolower($name); }

if ($this->char === '=') { // attribute with value
					$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
					$this->parse_attr($node, $name, $space); // get attribute value
				} 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;

// prepare for next attribute
				$space = array(
					$this->copy_skip($this->token_blank),
					'',
					''
				);
			} else { // no more attributes
				break;
			}
		} while ($this->char !== '>' && $this->char !== '/'); // go until the tag ended

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

// handle empty tags (i.e. "<div/>")
		if ($this->copy_until_char('>') === '/') {
			$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;
	}

protected function parse_attr($node, $name, &$space)
	{
		$is_duplicate = isset($node->attr[$name]);

if (!$is_duplicate) // Copy whitespace between "=" and value
			$space[2] = $this->copy_skip($this->token_blank);

switch ($this->char) {
			case '"':
				$quote_type = HDOM_QUOTE_DOUBLE;
				$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
				$value = $this->copy_until_char('"');
				$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
				break;
			case '\'':
				$quote_type = HDOM_QUOTE_SINGLE;
				$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
				$value = $this->copy_until_char('\'');
				$this->char = (++$this->pos < $this->size) ? $this->doc[$this->pos] : null; // next
				break;
			default:
				$quote_type = HDOM_QUOTE_NO;
				$value = $this->copy_until($this->token_attr);
		}

$value = $this->restore_noise($value);

// PaperG: Attributes should not have \r or \n in them, that counts as
		// html whitespace.
		$value = str_replace("\r", '', $value);
		$value = str_replace("\n", '', $value);

// 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') {
			$value = trim($value);
		}

if (!$is_duplicate) {
			$node->_[HDOM_INFO_QUOTE][] = $quote_type;
			$node->attr[$name] = $value;
		}
	}

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

protected function as_text_node($tag)
	{
		$node = new seedprod_seedprod_simple_html_dom_node($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 remove_noise($pattern, $remove_tag = false)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debug_log_entry(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->debug_log(2, 'key is: ' . $key);
			}

$idx = ($remove_tag) ? 0 : 1; // 0 = entire match, 1 = submatch
			$this->noise[$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];
		}
	}

function restore_noise($text)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debug_log_entry(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...

// todo: "___noise___1000" (or any number with four or more digits)
			// in the DOM causes an infinite loop which could be utilized by
			// malicious software
			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->debug_log(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;
	}

function search_noise($text)
	{
		global $debug_object;
		if (is_object($debug_object)) { $debug_object->debug_log_entry(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;
		}
	}

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, $value = null)
	{
		return @seedprod_str_get_html("<$name>$value</$name>")->firstChild();
	}

function createTextNode($value)
	{
		return @end(seedprod_str_get_html($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);
	}
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	makefntq/makefntq	0755	2025-11-19 03:27:44
..	dir	-	makefntq/makefntq	0755	2025-11-19 03:27:44
nameparse.php	text/x-php	6.14 KB	makefntq/makefntq	0644	2022-06-06 06:51:52
seedprod_lessc.inc.php	text/x-php	90.08 KB	makefntq/makefntq	0644	2022-06-06 06:51:52
simple_html_dom.php	text/x-php	58.02 KB	makefntq/makefntq	0644	2022-06-06 06:51:52
skin.php	text/x-php	1.91 KB	makefntq/makefntq	0644	2022-06-06 06:51:52
skin53.php	text/x-php	1.92 KB	makefntq/makefntq	0644	2022-06-06 06:51:52
upgrade.php	text/x-php	6.26 KB	makefntq/makefntq	0644	2025-07-01 05:17:24

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