preserveWhitespace = true; $dom->formatOutput = false; $source = ''.$source.''; $used_errors = libxml_use_internal_errors(true); $opts = LIBXML_HTML_NODEFDTD; $parsed = $dom->loadHTML( $source, $opts ); $errors = libxml_get_errors(); $used_errors || libxml_use_internal_errors(false); libxml_clear_errors(); if( $errors || ! $parsed ){ $e = new Loco_error_ParseException('Unknown parse error'); foreach( $errors as $error ){ $e = new Loco_error_ParseException( trim($error->message) ); $e->setContext( $error->line, $error->column, $source ); if( LIBXML_ERR_FATAL === $error->level ){ throw $e; } } if( ! $parsed ){ throw $e; } } return $dom; } public function __construct( $value ){ if( is_array($value) ){ $nodes = $value; } else if( $value instanceof DOMDocument ){ $nodes = array( $value->documentElement ); } else if( $value instanceof DOMNodeList ){ $nodes = array(); foreach( $value as $node ){ $nodes[] = $node; } } else { $value = self::parse( $value ); $nodes = array( $value->documentElement ); } parent::__construct( $nodes ); } public function eq( $index ){ $q = new LocoDomQuery(array()); if( $el = $this[$index] ){ $q[] = $el; } return $q; } public function find( $value ){ $q = new LocoDomQuery( array() ); $f = new _LocoDomQueryFilter($value); foreach( $this as $el ){ foreach( $f->filter($el) as $match ){ $q[] = $match; } } return $q; } public function text(){ $s = ''; foreach( $this as $el ){ $s .= $el->textContent; } return $s; } public function html(){ $s = ''; foreach( $this as $outer ){ foreach( $outer->childNodes as $inner ){ $s .= $inner->ownerDocument->saveXML($inner); } break; } return $s; } public function attr( $name ){ foreach( $this as $el ){ return $el->getAttribute($name); } return null; } public function serialize(){ $pairs = array(); foreach( array('input','select','textarea','button') as $type ){ foreach( $this->find($type) as $field ){ $name = $field->getAttribute('name'); if( ! $name ){ continue; } if( $field->hasAttribute('type') ){ $type = $field->getAttribute('type'); } if( 'select' === $type ){ $value = null; $f = new _LocoDomQueryFilter('option'); foreach( $f->filter($field) as $option ){ if( $option->hasAttribute('value') ){ $_value = $option->getAttribute('value'); } else { $_value = $option->nodeValue; } if( $option->hasAttribute('selected') ){ $value = $_value; break; } else if( is_null($value) ){ $value = $_value; } } if( is_null($value) ){ $value = ''; } } else if( 'checkbox' === $type || 'radio' === $type ){ if( $field->hasAttribute('checked') ){ $value = $field->getAttribute('value'); } else { continue; } } else if( 'file' === $type ){ $value = ''; } else if( $field->hasAttribute('value') ){ $value = $field->getAttribute('value'); } else { $value = $field->textContent; } $pairs[] = sprintf('%s=%s', rawurlencode($name), rawurlencode($value) ); } } return implode('&',$pairs); } } class _LocoDomQueryFilter { private $tag; private $attr = array(); public function __construct( $value ){ $id = '[-_a-z][-_a-z0-9]*'; if( ! preg_match('/^([a-z1-6]*)(#'.$id.')?(\.'.$id.')?(\[(\w+)="(.+)"\])?$/i', $value, $r ) ){ throw new InvalidArgumentException('Bad filter, '.$value ); } if( $r[1] ){ $this->tag = $r[1]; } if( ! empty($r[2]) ){ $this->attr['id'] = substr($r[2],1); } if( ! empty($r[3]) ){ $this->attr['class'] = substr($r[3],1); } if( ! empty($r[4]) ){ $this->attr[ $r[5] ] = $r[6]; } } public function filter( DOMElement $el ){ if( $this->tag ){ $list = $el->getElementsByTagName($this->tag); $recursive = false; } else { $list = $el->childNodes; $recursive = true; } if( $this->attr ){ $list = $this->reduce( $list, new ArrayIterator, $recursive )->getArrayCopy(); } return $list; } public function reduce( DOMNodeList $list, ArrayIterator $reduced, $recursive ){ foreach( $list as $node ){ if( $node instanceof DOMElement ){ $matched = false; foreach( $this->attr as $name => $value ){ if( ! $node->hasAttribute($name) ){ $matched = false; break; } $values = array_flip( explode(' ', $node->getAttribute($name) ) ); if( ! isset($values[$value]) ){ $matched = false; break; } $matched = true; } if( $matched ){ $reduced[] = $node; } if( $recursive && $node->hasChildNodes() ){ $this->reduce( $node->childNodes, $reduced, true ); } } } return $reduced; } }