a
    äIþfW  ã                   @   sJ   d Z g d¢ZddlZddlmZ dd„ Zddd	„Zddd„Zddd„ZdS )z1Various types of useful iterators and generators.)Úbody_line_iteratorÚtyped_subpart_iteratorÚwalké    N)ÚStringIOc                 c   s.   | V  |   ¡ r*|  ¡ D ]}| ¡ E dH  qdS )z‰Walk over the message tree, yielding each subpart.

    The walk is performed in depth-first order.  This method is a
    generator.
    N)Úis_multipartÚget_payloadr   )ÚselfÚsubpart© r
   ú lib/python3.9/email/iterators.pyr      s    r   Fc                 c   s6   |   ¡ D ](}|j|d}t|tƒrt|ƒE dH  qdS )zŽIterate over the parts, returning string payloads line-by-line.

    Optional decode (default False) is passed through to .get_payload().
    )ÚdecodeN)r   r   Ú
isinstanceÚstrr   )Úmsgr   r	   Zpayloadr
   r
   r   r   "   s    
r   Útextc                 c   s8   |   ¡ D ]*}| ¡ |kr|du s,| ¡ |kr|V  qdS )zøIterate over the subparts with a given MIME type.

    Use `maintype' as the main MIME type to match against; this defaults to
    "text".  Optional `subtype' is the MIME subtype to match against; if
    omitted, only the main type is matched.
    N)r   Zget_content_maintypeZget_content_subtype)r   ZmaintypeZsubtyper	   r
   r
   r   r   -   s    r   c                 C   s€   |du rt j}d|d  }t||  ¡  d|d |rJtd|  ¡  |d n
t|d |  ¡ r||  ¡ D ]}t|||d |ƒ qddS )	zA handy debugging aidNú é   Ú )ÚendÚfilez [%s])r   é   )ÚsysÚstdoutÚprintZget_content_typeZget_default_typer   r   Ú
_structure)r   ÚfpÚlevelZinclude_defaultZtabr	   r
   r
   r   r   ;   s    
r   )F)r   N)Nr   F)	Ú__doc__Ú__all__r   Úior   r   r   r   r   r
   r
   r
   r   Ú<module>   s   

