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r8 wY nX |� t||�\}}W dQ R X x6|j� D ]*\}}|| kr||| |< qb| | | | |< qbW qW | S )a� Return a dictionary containing the mailcap database.
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a� Read a mailcap file and return a dictionary keyed by MIME type.
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r- c C sT |}x:||k r>| | }|dkr"P q|dkr4|d }q|d }qW | ||� j � |fS )z/Separate one key-value pair in a mailcap entry.�;�\r r )r, )r3 r; r< �start�cr r r r9 � s
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C s� t |�r"d|f }tj|t� dS t| ||�}xd|D ]\}d|krnt|d ||�}|dkrZq4|rntj|�dkrnq4t|| |||�} | dk r4| |fS q4W dS )a Find a match for a mailcap entry.
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