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)rF r? r rG Z input_charset�output_charsetr r r r! s$ z Header.appendc C s | j � p | d k S)N�(�)�\)r^ r_ r` )r$ )rF r? r r r rQ 4 s zHeader._nonctextz;, r c C sD | j � | d k r | j } | d k r1 d } t | j | | j | � } d } d } } x�| j D]�\ } } | d k r� | o� | j | d � } | d k r� | s� | d k r� | j � n | d k r� | r� | j � | o� | j | d � } | } d } | j � } | r1| j d | d | � n | j d d | � x� | d d � D]� } | j � | j d k r�| j | j d | j � | � qU| j � } | d t | � t | � � } | j | | | � qUWt | � d k rf | j � qf W| j r | j � | j | � } t j | � r@t d j | � � � | S) Nr i@B �us-asciir Fr r z8header value appears to contain an embedded header: {!r})Nra )Nra )Nra rM )rN rD �_ValueFormatterrE rB r rQ �add_transitionr �feed�newline�header_encodingr r( �_str�_embeded_headerr r �format)rF � splitcharsr: �linesep� formatterrU rW rV r r �linesr1 Zsline�fws�valuer r r rP 9 sR ! z Header.encodec C s� g } d } g } xj | j D]_ \ } } | | k rD | j | � q | d k rl | j t j | � | f � | g } | } q W| r� | j t j | � | f � | | _ d S)N)r r! rR rT )rF �chunksr9 Z last_chunkr r r r r rN � s zHeader._normalize) �__name__� __module__� __qualname__rH rX rZ r! rQ rP rN r r r r r � s - + Pc @ s| e Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S)rb c C sF | | _ | | _ t | � | _ | | _ g | _ t | � | _ d S)N)�_maxlenrB r( �_continuation_ws_len� _splitchars�_lines� _Accumulator� _current_line)rF Z headerlen�maxlenr< rj r r r rH � s z_ValueFormatter.__init__c C s | j � | j | j � S)N)re rT rw )rF rk r r r rg � s z_ValueFormatter._strc C s | j t � S)N)rg �NL)rF r r r rX � s z_ValueFormatter.__str__c C s� | j j � } | d k r+ | j j | � t | j � d k r� | j j � rl | j d t | j � 7<n | j j t | j � � | j j � d S)Nr r r r )r r rM ) ry r �pushr( � is_onlywsrw r r! �reset)rF Z end_of_liner r r re � s z_ValueFormatter.newlinec C s | j j d d � d S)Nr r )ry r| )rF r r r rc � s z _ValueFormatter.add_transitionc C s� | j d k r) | j | | | j � d S| j | | j � � } y | j d � } Wn t k rl d SYn X| d k r� | j | | � y | j � } Wn t k r� d SYn X| j � | j j | j | � x% | D] } | j j | j | � q� Wd S)Nr )rf � _ascii_splitrv Zheader_encode_lines� _maxlengthsr � IndexError� _append_chunkre ry r| rB rw r! )rF rn r r Z encoded_linesZ first_lineZ last_liner1 r r r rd � s$ z_ValueFormatter.feedc c s/ | j t | j � Vx | j | j Vq Wd S)N)rt r( ry ru )rF r r r r� � s z_ValueFormatter._maxlengthsc C s� t j d t d | | � } | d r> d g | d d � <n | j d � x7 t t | � g d � D] \ } } | j | | � qe Wd S)Nz([z]+)r r r )�rer �FWSr �zip�iterr� )rF rn r rj r2 �partr r r r � s &z _ValueFormatter._ascii_splitc C s` | j j | | � t | j � | j k r\x� | j D]� } x� t | j j � d d d � D]f } | j � r� | j | d } | r� | d | k r� P| j | d d } | r[ | d | k r[ Pq[ Wq5 Pq5 W| j j � \ } } | j j d k r | j � | s d } | j j | | � d S| j j | � } | j j t | j � � | j j | � d S)Nr r r rM rM )ry r| r( rt rv �range� part_countr$ r � _initial_sizere �pop_fromrw r! r r~ )rF rn r Zch�iZprevpartr� Z remainderr r r r� � s. & z _ValueFormatter._append_chunkN) rq rr rs rH rg rX re rc rd r� r r� r r r r rb � s % rb c s� e Z d Z d � f d d � Z d d � Z d d d � Z � f d d � Z d d � Z d d � Z d d d � Z d d � Z � f d d � Z � S)rx r c s | | _ t � j � d S)N)r� �superrH )rF Z initial_size)� __class__r r rH s z_Accumulator.__init__c C s | j | | f � d S)N)r! )rF rn r r r r r| # s z_Accumulator.pushc C s$ | | d � } g | | d � <| S)Nr )rF r� Zpoppedr r r r� & s z_Accumulator.pop_fromc s# | j � d k r d St � j � S)Nr r )r r )r� r� r )rF )r� r r r + s z_Accumulator.popc C s t d d � | D� | j � S)Nc s s+ | ]! \ } } t | � t | � Vq d S)N)r( )r rn r� r r r � <genexpr>1 s z'_Accumulator.__len__.<locals>.<genexpr>)�sumr� )rF r r r �__len__0 s z_Accumulator.__len__c C s t j d d � | D� � S)Nc s s* | ] \ } } t j | | f � Vq d S)N)rS rT )r rn r� r r r r� 5 s z'_Accumulator.__str__.<locals>.<genexpr>)rS rT )rF r r r rX 4 s z_Accumulator.__str__Nc C s/ | d k r g } | | d d � <d | _ d S)Nr )r� )rF Zstartvalr r r r~ 8 s z_Accumulator.resetc C s& | j d k o% | p% t | � j � S)Nr )r� r r$ )rF r r r r} > s z_Accumulator.is_onlywsc s t � j � S)N)r� r� )rF )r� r r r� A s z_Accumulator.part_count) rq rr rs rH r| r� r r� rX r~ r} r� r r )r� r rx s rx z )#�__all__r� r* Zemail.quoprimimer& Zemail.base64mimeZ email.errorsr r r r= r{ rR r/ ZSPACE8rS rC r� rA r\ �compile�VERBOSE� IGNORECASE� MULTILINEr Zfcrerh r' Z _max_appendr r r rb �listrx r r r r �<module> s: _��
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