B
    Æ S]W  ã               @   sL   d Z dddg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   s2   | V  |   ¡ r.x|  ¡ D ]}| ¡ E dH  qW 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/python3.7/email/iterators.pyr      s    Fc             c   s:   x4|   ¡ D ](}|j|d}t|tƒr
t|ƒE dH  q
W 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    
Útextc             c   s<   x6|   ¡ D ]*}| ¡ |kr
|dks.| ¡ |kr
|V  q
W 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    c             C   s„   |dkrt j}d|d  }t||  ¡  d|d |rJtd|  ¡  |d n
t|d |  ¡ r€x"|  ¡ D ]}t|||d |ƒ qfW d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   

