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+<?php
+/*******************************************************************************
+Version: 1.11 ($Rev: 175 $)
+Website: http://sourceforge.net/projects/simplehtmldom/
+Author: S.C. Chen <me578022@gmail.com>
+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)
+Licensed under The MIT License
+Redistributions of files must retain the above copyright notice.
+*******************************************************************************/
+
+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);
+
+// helper functions
+// -----------------------------------------------------------------------------
+// get html dom form file
+function file_get_html() {
+ $dom = new simple_html_dom;
+ $args = func_get_args();
+ $dom->load(call_user_func_array('file_get_contents', $args), true);
+ return $dom;
+}
+
+// get html dom form string
+function str_get_html($str, $lowercase=true) {
+ $dom = new simple_html_dom;
+ $dom->load($str, $lowercase);
+ return $dom;
+}
+
+// dump html dom tree
+function dump_html_tree($node, $show_attr=true, $deep=0) {
+ $lead = str_repeat(' ', $deep);
+ echo $lead.$node->tag;
+ if ($show_attr && count($node->attr)>0) {
+ echo '(';
+ foreach($node->attr as $k=>$v)
+ echo "[$k]=>\"".$node->$k.'", ';
+ echo ')';
+ }
+ echo "\n";
+
+ foreach($node->nodes as $c)
+ dump_html_tree($c, $show_attr, $deep+1);
+}
+
+// get dom form file (deprecated)
+function file_get_dom() {
+ $dom = new simple_html_dom;
+ $args = func_get_args();
+ $dom->load(call_user_func_array('file_get_contents', $args), true);
+ return $dom;
+}
+
+// get dom form string (deprecated)
+function str_get_dom($str, $lowercase=true) {
+ $dom = new simple_html_dom;
+ $dom->load($str, $lowercase);
+ return $dom;
+}
+
+// simple html dom node
+// -----------------------------------------------------------------------------
+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;
+ public $_ = array();
+ 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) {
+ dump_html_tree($this, $show_attr);
+ }
+
+ // returns the parent of node
+ function parent() {
+ return $this->parent;
+ }
+
+ // returns children of node
+ function children($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];
+ }
+
+ // 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 $ret;
+ }
+
+ // get dom node's outer text (with tag)
+ function outertext() {
+ if ($this->tag==='root') return $this->innertext();
+
+ // trigger callback
+ if ($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
+ $ret = $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]->makeup();
+
+ // render inner text
+ if (isset($this->_[HDOM_INFO_INNER]))
+ $ret .= $this->_[HDOM_INFO_INNER];
+ else {
+ foreach($this->nodes as $n)
+ $ret .= $n->outertext();
+ }
+
+ // render end tag
+ if(isset($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 '';
+
+ $ret = '';
+ foreach($this->nodes as $n)
+ $ret .= $n->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 . $this->_[HDOM_INFO_ENDSPACE] . '>';
+ }
+
+ // find elements by css selector
+ function find($selector, $idx=null) {
+ $selectors = $this->parse_selector($selector);
+ if (($count=count($selectors))===0) return array();
+ $found_keys = array();
+
+ // find each selector
+ for ($c=0; $c<$count; ++$c) {
+ if (($levle=count($selectors[0]))===0) return array();
+ if (!isset($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];
+ $n->seek($selectors[$c][$l], $ret);
+ }
+ $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
+ protected function seek($selector, &$ret) {
+ 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])) $pass=false;
+ }
+ else if (!isset($node->attr[$key])) $pass=false;
+ }
+ // compare value
+ if ($pass && $key && $val && $val!=='*') {
+ $check = $this->match($exp, $val, $node->attr[$key]);
+ // handle multiple class
+ if (!$check && strcasecmp($key, 'class')===0) {
+ foreach(explode(' ',$node->attr[$key]) as $k) {
+ $check = $this->match($exp, $val, $k);
+ if ($check) break;
+ }
+ }
+ if (!$check) $pass = false;
+ }
+ if ($pass) $ret[$i] = 1;
+ unset($node);
+ }
+ }
+
+ protected function match($exp, $pattern, $value) {
+ switch ($exp) {
+ case '=':
+ return ($value===$pattern);
+ case '!=':
+ return ($value!==$pattern);
+ case '^=':
+ return preg_match("/^".preg_quote($pattern,'/')."/", $value);
+ case '$=':
+ return preg_match("/".preg_quote($pattern,'/')."$/", $value);
+ case '*=':
+ if ($pattern[0]=='/')
+ return preg_match($pattern, $value);
+ return preg_match("/".$pattern."/i", $value);
+ }
+ return false;
+ }
+
+ protected function parse_selector($selector_string) {
+ // pattern of CSS selectors, modified from mootools
+ $pattern = "/([\w-:\*]*)(?:\#([\w-]+)|\.([\w-]+))?(?:\[@?(!?[\w-]+)(?:([!*^$]?=)[\"']?(.*?)[\"']?)?\])?([\/, ]+)/is";
+ preg_match_all($pattern, trim($selector_string).' ', $matches, PREG_SET_ORDER);
+ $selectors = array();
+ $result = array();
+ //print_r($matches);
+
+ foreach ($matches as $m) {
+ $m[0] = trim($m[0]);
+ if ($m[0]==='' || $m[0]==='/' || $m[0]==='//') continue;
+ // for borwser grnreated xpath
+ if ($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 $this->attr[$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]);
+ }
+
+ // 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();}
+}
+
+// simple html dom parser
+// -----------------------------------------------------------------------------
+class simple_html_dom {
+ public $root = null;
+ public $nodes = array();
+ public $callback = null;
+ public $lowercase = false;
+ protected $pos;
+ protected $doc;
+ protected $char;
+ protected $size;
+ 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 = ' >';
+ // 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);
+ protected $optional_closing_tags = array(
+ 'tr'=>array('tr'=>1, 'td'=>1, 'th'=>1),
+ 'th'=>array('th'=>1),
+ 'td'=>array('td'=>1),
+ 'li'=>array('li'=>1),
+ 'dt'=>array('dt'=>1, 'dd'=>1),
+ 'dd'=>array('dd'=>1, 'dt'=>1),
+ 'dl'=>array('dd'=>1, 'dt'=>1),
+ 'p'=>array('p'=>1),
+ 'nobr'=>array('nobr'=>1),
+ );
+
+ function __construct($str=null) {
+ if ($str) {
+ if (preg_match("/^http:\/\//i",$str) || is_file($str))
+ $this->load_file($str);
+ else
+ $this->load($str);
+ }
+ }
+
+ function __destruct() {
+ $this->clear();
+ }
+
+ // load html from string
+ function load($str, $lowercase=true) {
+ // prepare
+ $this->prepare($str, $lowercase);
+ // strip out comments
+ $this->remove_noise("'<!--(.*?)-->'is");
+ // strip out cdata
+ $this->remove_noise("'<!\[CDATA\[(.*?)\]\]>'is", true);
+ // 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 <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 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;
+ }
+
+ // load html from file
+ function load_file() {
+ $args = func_get_args();
+ $this->load(call_user_func_array('file_get_contents', $args), true);
+ }
+
+ // set callback function
+ function set_callback($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);
+ return $ret;
+ }
+
+ // find dom node by css selector
+ function find($selector, $idx=null) {
+ return $this->root->find($selector, $idx);
+ }
+
+ // clean up memory due to php5 circular references memory leak...
+ function clear() {
+ foreach($this->nodes 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) {
+ $this->clear();
+ $this->doc = $str;
+ $this->pos = 0;
+ $this->cursor = 1;
+ $this->noise = array();
+ $this->nodes = array();
+ $this->lowercase = $lowercase;
+ $this->root = new simple_html_dom_node($this);
+ $this->root->tag = 'root';
+ $this->root->_[HDOM_INFO_BEGIN] = -1;
+ $this->root->nodetype = HDOM_TYPE_ROOT;
+ $this->parent = $this->root;
+ // set the length of content
+ $this->size = strlen($str);
+ 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;
+ }
+
+ // 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
+ $this->skip($this->token_blank_t);
+ $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);
+
+ // 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
+ return true;
+ }
+
+ // parse attributes
+ protected function parse_attr($node, $name, &$space) {
+ $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($this->token_attr));
+ }
+ }
+
+ // link node's parent
+ protected function link_nodes(&$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
+ protected function remove_noise($pattern, $remove_tag=false) {
+ $count = preg_match_all($pattern, $this->doc, $matches, PREG_SET_ORDER|PREG_OFFSET_CAPTURE);
+
+ for ($i=$count-1; $i>-1; --$i) {
+ $key = '___noise___'.sprintf('% 3d', count($this->noise)+100);
+ $idx = ($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) {
+ while(($pos=strpos($text, '___noise___'))!==false) {
+ $key = '___noise___'.$text[$pos+11].$text[$pos+12].$text[$pos+13];
+ if (isset($this->noise[$key]))
+ $text = substr($text, 0, $pos).$this->noise[$key].substr($text, $pos+14);
+ }
+ return $text;
+ }
+
+ 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 $this->root->text();
+ }
+ }
+
+ // camel naming conventions
+ function childNodes($idx=-1) {return $this->root->childNodes($idx);}
+ function firstChild() {return $this->root->first_child();}
+ function lastChild() {return $this->root->last_child();}
+ function getElementById($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(call_user_func_array('file_get_contents', $args), true);}
+}
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 06:20:00 +0000