highwire / opensource-php-BetterDOMDocument

          $this->registerNamespace($namespace->prefix, $namespace->nodeValue);

        }

      }

      else {

        $this->default_ns = $namespace->nodeValue;

        if (is_string($auto_register_namespaces)) {

          $this->registerNamespace($auto_register_namespaces, $namespace->nodeValue);

        }

        // Otherwise, automatically set-up the root element tag name as the prefix for the default namespace

        else {

          $tagname = $this->documentElement->tagName;

          if (empty($this->ns[$tagname])) {

            $this->registerNamespace($tagname, $this->documentElement->getAttribute('xmlns'));

          }

        }

      }

    }

    // If it's an "HTML" document, we get namespaces via attributes

        if ($attr->name == 'xmlns') {

          $this->default_ns = $attr->value;

          // If auto_register_namespaces is a prefix string, then we register the default namespace to that string

          if (is_string($auto_register_namespaces)) {

            $this->registerNamespace($auto_register_namespaces, $attr->value);

          }

          // Otherwise, automatically set-up the root element tag name as the prefix for the default namespace

          else {

            $tagname = $this->documentElement->tagName;

            if (empty($this->ns[$tagname])) {

              $this->registerNamespace($tagname, $attr->value);

            } 

          }

        }

        else if (substr($attr->name,0,6) == 'xmlns:') {

          $prefix = substr($attr->name,6);