!empty($obj->is_tag) * without having to use a function call is_a(). */ public $is_tag = true; /** * The lower-case name of the tag, like 'a', 'b' or 'blockquote'. * * @note Strictly speaking, XML tags are case sensitive, so we shouldn't * be lower-casing them, but these tokens cater to HTML tags, which are * insensitive. */ public $name; /** * Associative array of the tag's attributes. */ public $attr = array(); /** * Non-overloaded constructor, which lower-cases passed tag name. * * @param $name String name. * @param $attr Associative array of attributes. */ public function __construct($name, $attr = array(), $line = null, $col = null) { $this->name = ctype_lower($name) ? $name : strtolower($name); foreach ($attr as $key => $value) { // normalization only necessary when key is not lowercase if (!ctype_lower($key)) { $new_key = strtolower($key); if (!isset($attr[$new_key])) { $attr[$new_key] = $attr[$key]; } if ($new_key !== $key) { unset($attr[$key]); } } } $this->attr = $attr; $this->line = $line; $this->col = $col; } } // vim: et sw=4 sts=4