975 lines
35 KiB
PHP
975 lines
35 KiB
PHP
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<?php
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/*******************************************************************************
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Version: 1.11 ($Rev: 175 $)
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Website: http://sourceforge.net/projects/simplehtmldom/
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Author: S.C. Chen <me578022@gmail.com>
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Acknowledge: Jose Solorzano (https://sourceforge.net/projects/php-html/)
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Contributions by:
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Yousuke Kumakura (Attribute filters)
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Vadim Voituk (Negative indexes supports of "find" method)
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Antcs (Constructor with automatically load contents either text or file/url)
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Licensed under The MIT License
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Redistributions of files must retain the above copyright notice.
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*******************************************************************************/
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define('HDOM_TYPE_ELEMENT', 1);
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define('HDOM_TYPE_COMMENT', 2);
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define('HDOM_TYPE_TEXT', 3);
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define('HDOM_TYPE_ENDTAG', 4);
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define('HDOM_TYPE_ROOT', 5);
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define('HDOM_TYPE_UNKNOWN', 6);
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define('HDOM_QUOTE_DOUBLE', 0);
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define('HDOM_QUOTE_SINGLE', 1);
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define('HDOM_QUOTE_NO', 3);
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define('HDOM_INFO_BEGIN', 0);
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define('HDOM_INFO_END', 1);
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define('HDOM_INFO_QUOTE', 2);
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define('HDOM_INFO_SPACE', 3);
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define('HDOM_INFO_TEXT', 4);
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define('HDOM_INFO_INNER', 5);
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define('HDOM_INFO_OUTER', 6);
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define('HDOM_INFO_ENDSPACE',7);
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// helper functions
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// -----------------------------------------------------------------------------
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// get html dom form file
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function file_get_html() {
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$dom = new simple_html_dom;
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$args = func_get_args();
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$dom->load(call_user_func_array('file_get_contents', $args), true);
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return $dom;
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}
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// get html dom form string
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function str_get_html($str, $lowercase=true) {
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$dom = new simple_html_dom;
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$dom->load($str, $lowercase);
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return $dom;
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}
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// dump html dom tree
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function dump_html_tree($node, $show_attr=true, $deep=0) {
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$lead = str_repeat(' ', $deep);
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echo $lead.$node->tag;
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if ($show_attr && count($node->attr)>0) {
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echo '(';
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foreach($node->attr as $k=>$v)
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echo "[$k]=>\"".$node->$k.'", ';
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echo ')';
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}
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echo "\n";
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foreach($node->nodes as $c)
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dump_html_tree($c, $show_attr, $deep+1);
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}
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// get dom form file (deprecated)
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function file_get_dom() {
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$dom = new simple_html_dom;
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$args = func_get_args();
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$dom->load(call_user_func_array('file_get_contents', $args), true);
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return $dom;
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}
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// get dom form string (deprecated)
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function str_get_dom($str, $lowercase=true) {
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$dom = new simple_html_dom;
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$dom->load($str, $lowercase);
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return $dom;
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}
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// simple html dom node
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// -----------------------------------------------------------------------------
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class simple_html_dom_node {
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public $nodetype = HDOM_TYPE_TEXT;
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public $tag = 'text';
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public $attr = array();
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public $children = array();
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public $nodes = array();
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public $parent = null;
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public $_ = array();
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private $dom = null;
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function __construct($dom) {
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$this->dom = $dom;
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$dom->nodes[] = $this;
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}
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function __destruct() {
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$this->clear();
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}
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function __toString() {
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return $this->outertext();
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}
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// clean up memory due to php5 circular references memory leak...
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function clear() {
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$this->dom = null;
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$this->nodes = null;
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$this->parent = null;
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$this->children = null;
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}
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// dump node's tree
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function dump($show_attr=true) {
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dump_html_tree($this, $show_attr);
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}
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// returns the parent of node
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function parent() {
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return $this->parent;
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}
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// returns children of node
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function children($idx=-1) {
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if ($idx===-1) return $this->children;
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if (isset($this->children[$idx])) return $this->children[$idx];
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return null;
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}
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// returns the first child of node
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function first_child() {
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if (count($this->children)>0) return $this->children[0];
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return null;
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}
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// returns the last child of node
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function last_child() {
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if (($count=count($this->children))>0) return $this->children[$count-1];
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return null;
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}
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// returns the next sibling of node
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function next_sibling() {
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if ($this->parent===null) return null;
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$idx = 0;
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$count = count($this->parent->children);
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while ($idx<$count && $this!==$this->parent->children[$idx])
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++$idx;
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if (++$idx>=$count) return null;
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return $this->parent->children[$idx];
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}
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// returns the previous sibling of node
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function prev_sibling() {
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if ($this->parent===null) return null;
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$idx = 0;
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$count = count($this->parent->children);
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while ($idx<$count && $this!==$this->parent->children[$idx])
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++$idx;
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if (--$idx<0) return null;
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return $this->parent->children[$idx];
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}
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// get dom node's inner html
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function innertext() {
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if (isset($this->_[HDOM_INFO_INNER])) return $this->_[HDOM_INFO_INNER];
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if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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$ret = '';
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foreach($this->nodes as $n)
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$ret .= $n->outertext();
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return $ret;
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}
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// get dom node's outer text (with tag)
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function outertext() {
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if ($this->tag==='root') return $this->innertext();
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// trigger callback
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if ($this->dom->callback!==null)
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call_user_func_array($this->dom->callback, array($this));
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if (isset($this->_[HDOM_INFO_OUTER])) return $this->_[HDOM_INFO_OUTER];
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if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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// render begin tag
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$ret = $this->dom->nodes[$this->_[HDOM_INFO_BEGIN]]->makeup();
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// render inner text
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if (isset($this->_[HDOM_INFO_INNER]))
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$ret .= $this->_[HDOM_INFO_INNER];
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else {
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foreach($this->nodes as $n)
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$ret .= $n->outertext();
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}
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// render end tag
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if(isset($this->_[HDOM_INFO_END]) && $this->_[HDOM_INFO_END]!=0)
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$ret .= '</'.$this->tag.'>';
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return $ret;
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}
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// get dom node's plain text
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function text() {
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if (isset($this->_[HDOM_INFO_INNER])) return $this->_[HDOM_INFO_INNER];
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switch ($this->nodetype) {
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case HDOM_TYPE_TEXT: return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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case HDOM_TYPE_COMMENT: return '';
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case HDOM_TYPE_UNKNOWN: return '';
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}
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if (strcasecmp($this->tag, 'script')===0) return '';
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if (strcasecmp($this->tag, 'style')===0) return '';
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$ret = '';
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foreach($this->nodes as $n)
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$ret .= $n->text();
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return $ret;
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}
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function xmltext() {
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$ret = $this->innertext();
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$ret = str_ireplace('<![CDATA[', '', $ret);
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$ret = str_replace(']]>', '', $ret);
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return $ret;
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}
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// build node's text with tag
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function makeup() {
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// text, comment, unknown
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if (isset($this->_[HDOM_INFO_TEXT])) return $this->dom->restore_noise($this->_[HDOM_INFO_TEXT]);
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$ret = '<'.$this->tag;
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$i = -1;
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foreach($this->attr as $key=>$val) {
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++$i;
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// skip removed attribute
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if ($val===null || $val===false)
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continue;
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$ret .= $this->_[HDOM_INFO_SPACE][$i][0];
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//no value attr: nowrap, checked selected...
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if ($val===true)
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$ret .= $key;
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else {
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switch($this->_[HDOM_INFO_QUOTE][$i]) {
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case HDOM_QUOTE_DOUBLE: $quote = '"'; break;
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case HDOM_QUOTE_SINGLE: $quote = '\''; break;
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default: $quote = '';
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}
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$ret .= $key.$this->_[HDOM_INFO_SPACE][$i][1].'='.$this->_[HDOM_INFO_SPACE][$i][2].$quote.$val.$quote;
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}
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}
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$ret = $this->dom->restore_noise($ret);
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return $ret . $this->_[HDOM_INFO_ENDSPACE] . '>';
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}
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// find elements by css selector
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function find($selector, $idx=null) {
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$selectors = $this->parse_selector($selector);
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if (($count=count($selectors))===0) return array();
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$found_keys = array();
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// find each selector
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for ($c=0; $c<$count; ++$c) {
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if (($levle=count($selectors[0]))===0) return array();
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if (!isset($this->_[HDOM_INFO_BEGIN])) return array();
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$head = array($this->_[HDOM_INFO_BEGIN]=>1);
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// handle descendant selectors, no recursive!
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for ($l=0; $l<$levle; ++$l) {
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$ret = array();
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foreach($head as $k=>$v) {
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$n = ($k===-1) ? $this->dom->root : $this->dom->nodes[$k];
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$n->seek($selectors[$c][$l], $ret);
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}
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$head = $ret;
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}
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foreach($head as $k=>$v) {
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if (!isset($found_keys[$k]))
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$found_keys[$k] = 1;
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}
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}
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// sort keys
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ksort($found_keys);
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$found = array();
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foreach($found_keys as $k=>$v)
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$found[] = $this->dom->nodes[$k];
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// return nth-element or array
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if (is_null($idx)) return $found;
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else if ($idx<0) $idx = count($found) + $idx;
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return (isset($found[$idx])) ? $found[$idx] : null;
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}
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// seek for given conditions
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protected function seek($selector, &$ret) {
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list($tag, $key, $val, $exp, $no_key) = $selector;
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// xpath index
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if ($tag && $key && is_numeric($key)) {
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$count = 0;
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foreach ($this->children as $c) {
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if ($tag==='*' || $tag===$c->tag) {
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if (++$count==$key) {
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$ret[$c->_[HDOM_INFO_BEGIN]] = 1;
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return;
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}
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}
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}
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return;
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}
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$end = (!empty($this->_[HDOM_INFO_END])) ? $this->_[HDOM_INFO_END] : 0;
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if ($end==0) {
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$parent = $this->parent;
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while (!isset($parent->_[HDOM_INFO_END]) && $parent!==null) {
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$end -= 1;
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$parent = $parent->parent;
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}
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$end += $parent->_[HDOM_INFO_END];
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}
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for($i=$this->_[HDOM_INFO_BEGIN]+1; $i<$end; ++$i) {
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$node = $this->dom->nodes[$i];
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$pass = true;
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if ($tag==='*' && !$key) {
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if (in_array($node, $this->children, true))
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$ret[$i] = 1;
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continue;
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}
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|
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// compare tag
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if ($tag && $tag!=$node->tag && $tag!=='*') {$pass=false;}
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// compare key
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if ($pass && $key) {
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if ($no_key) {
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if (isset($node->attr[$key])) $pass=false;
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}
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else if (!isset($node->attr[$key])) $pass=false;
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}
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// compare value
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if ($pass && $key && $val && $val!=='*') {
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$check = $this->match($exp, $val, $node->attr[$key]);
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// handle multiple class
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if (!$check && strcasecmp($key, 'class')===0) {
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foreach(explode(' ',$node->attr[$key]) as $k) {
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$check = $this->match($exp, $val, $k);
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if ($check) break;
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}
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}
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if (!$check) $pass = false;
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}
|
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if ($pass) $ret[$i] = 1;
|
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unset($node);
|
||
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}
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||
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}
|
||
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|
||
|
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protected function match($exp, $pattern, $value) {
|
||
|
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switch ($exp) {
|
||
|
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case '=':
|
||
|
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return ($value===$pattern);
|
||
|
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case '!=':
|
||
|
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return ($value!==$pattern);
|
||
|
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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);}
|
||
|
|
}
|
||
|
|
?>
|