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<?php
/**
* Simple HTML parser
*
* @author olamedia <[email protected]>
* @deprecated
* @see https://github.com/olamedia/nokogiri
*/
class nokogiri implements IteratorAggregate{
protected $_source = '';
/**
* @var DOMDocument
*/
protected $_dom = null;
/**
* @var DOMDocument
*/
protected $_tempDom = null;
/**
* @var DOMXpath
* */
protected $_xpath = null;
public function __construct($htmlString = ''){
$this->loadHtml($htmlString);
}
public static function fromHtml($htmlString){
$me = new self();
$me->loadHtml($htmlString);
return $me;
}
public static function fromDom($dom){
$me = new self();
$me->loadDom($dom);
return $me;
}
public function loadDom($dom){
$this->_dom = $dom;
}
public function loadHtml($htmlString = ''){
$dom = new DOMDocument('1.0', 'UTF-8');
$dom->preserveWhiteSpace = false;
if (strlen($htmlString)){
libxml_use_internal_errors(TRUE);
$dom->loadHTML($htmlString);
libxml_clear_errors();
}
$this->loadDom($dom);
}
function __invoke($expression){
return $this->get($expression);
}
public function get($expression){
if (strpos($expression, ' ') !== false){
$a = explode(' ', $expression);
foreach ($a as $k=>$sub){
$a[$k] = $this->getXpathSubquery($sub);
}
return $this->getElements(implode('', $a));
}
return $this->getElements($this->getXpathSubquery($expression));
}
protected function getNodes(){
}
protected function getDom(){
if ($this->_dom instanceof DOMDocument){
return $this->_dom;
}elseif ($this->_dom instanceof DOMNodeList){
if ($this->_tempDom === null){
$this->_tempDom = new DOMDocument('1.0', 'UTF-8');
$root = $this->_tempDom->createElement('root');
$this->_tempDom->appendChild($root);
foreach ($this->_dom as $domElement){
$domNode = $this->_tempDom->importNode($domElement, true);
$root->appendChild($domNode);
}
}
return $this->_tempDom;
}
}
protected function getXpath(){
if ($this->_xpath === null){
$this->_xpath = new DOMXpath($this->getDom());
}
return $this->_xpath;
}
protected function getXpathSubquery($expression){
$query = '';
if (preg_match("/(?P<tag>[a-z0-9]+)?(\[(?P<attr>\S+)=(?P<value>\S+)\])?(#(?P<id>\S+))?(\.(?P<class>\S+))?(:(?P<pseudo>first-child))?/ims", $expression, $subs)){
$tag = isset($subs['tag']) && !empty($subs['tag'])?$subs['tag']:'*';
$query = '//'.$tag;
if (isset($subs['id']) && !empty($subs['id'])){
$query .= "[@id='".$subs['id']."']";
}
if (isset($subs['attr']) && !empty($subs['attr'])){
$attrValue = isset($subs['value']) && !empty($subs['value'])?$subs['value']:'';
$query .= "[@".$subs['attr']."='".$attrValue."']";
}
if (isset($subs['class']) && !empty($subs['class'])){
//$query .= "[@class='".$class."']";
$query .= '[contains(concat(" ", normalize-space(@class), " "), " '.$subs['class'].' ")]';
}
if (isset($subs['pseudo']) && !empty($subs['pseudo'])){
//$query .= "[@class='".$class."']";
if ('first-child' === $subs['pseudo']){
$query .= '[1]';
}
}
}
return $query;
}
protected function getElements($xpathQuery){
if (strlen($xpathQuery)){
$nodeList = $this->getXpath()->query($xpathQuery);
if ($nodeList === false){
throw new Exception('Malformed xpath');
}
return self::fromDom($nodeList);
}
}
public function toXml(){
return $this->getDom()->saveXML();
}
public function toArray($xnode = null){
$array = array();
if ($xnode === null){
if ($this->_dom instanceof DOMNodeList){
foreach ($this->_dom as $node){
$array[] = $this->toArray($node);
}
return $array;
}
$node = $this->getDom();
}else{
$node = $xnode;
}
if (in_array($node->nodeType, array(XML_TEXT_NODE,XML_COMMENT_NODE))){
return $node->nodeValue;
}
if ($node->hasAttributes()){
foreach ($node->attributes as $attr){
$array[$attr->nodeName] = $attr->nodeValue;
}
}
if ($node->hasChildNodes()){
if ($node->childNodes->length == 1){
$array[$node->firstChild->nodeName] = $this->toArray($node->firstChild);
}else{
foreach ($node->childNodes as $childNode){
$array[$childNode->nodeName][] = $this->toArray($childNode);
}
}
}
if ($xnode === null){
return reset(reset($array)); // first child
}
return $array;
}
public function getIterator(){
$a = $this->toArray();
return new ArrayIterator($a);
}
}