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Nc C sT |dkrd| _ n|j| _ |dkr(td��|| _|| _|p:i | _|| _| sP|jrl|
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NT)r\ r9 �__dict__r� r< r� )r r� �nr r r � decompose� s
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z Tag.clearc C s� g }x�t | j�D ]r\}}t|t�r*|j� |t| j�d kr>q| j|d }t|t�rt|t�rt|t� rt|t� r|j|� qW xFt |�D ]:}| j| }| j|d }|j
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|fV qW x |r�|j� }tj|fV q�W dS )a] Yield a sequence of events that can be used to reconstruct the DOM
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