original_string: public function getAsPreviewHTML()
      {
          $html = "";
          foreach ($this->getChildren() as $child) {
              $html .= $child->getAsPreviewHTML();
          }
  
          return $html;
      }
code: public function getAsPreviewHTML()
      {
          $html = "";
          foreach ($this->getChildren() as $child) {
              $html .= $child->getAsPreviewHTML();
          }
  
          return $html;
      }
code_tokens: public function getAsPreviewHTML ( ) { $ html = "" ; foreach ( $ this -> getChildren ( ) as $ child ) { $ html .= $ child -> getAsPreviewHTML ( ) ; } return $ html ; }
docstring: Iterates through the document's children to return a html version,
  in a preview context
  
  @return string
docstring_tokens: Iterates through the document s children to return a html version in a preview context