B
    \ cV                 @   s   d Z ddddgZdZdZdZdZyd	d
lmZmZ W n e	k
rP   dZdZY nX dd Z
dd ZdddZdddZdddZdddZdd Zdd Zdd Zedkre  dS ) zHConversions to/from quoted-printable transport encoding as per RFC 1521.encodedecodeencodestringdecodestring   =L   s   0123456789ABCDEF        )a2b_qpb2a_qpNc             C   sH   t | tst| dkr|S | dkr&|S | tkpFd|   ko@dkn   S )zDecide whether a particular byte ordinal needs to be quoted.

    The 'quotetabs' flag indicates whether embedded tabs and spaces should be
    quoted.  Note that line-ending tabs and spaces are always encoded, as per
    RFC 1521.
    s    	   _       ~)
isinstancebytesAssertionErrorESCAPE)c	quotetabsheader r   lib/python3.7/quopri.pyneedsquoting   s    r   c             C   sB   t | trt| dkstt| } ttt| d  t| d  f S )zQuote a single character.      )r   r   lenr   ordr   HEX)r   r   r   r   quote$   s    r   Fc             C   s<  t dk	r,|  }t |||d}|| dS |dfdd}d}x|  }|sNP g }	d}
|dd dkrv|dd }d}
xL|D ]D}t|f}t|||rt|}|r|dkr|	d	 q||	| q|W |dk	r|| t	|	}x:t
|tkr||dtd
  dd |td
 d }qW |}q@W |dk	r8|||
d dS )av  Read 'input', apply quoted-printable encoding, and write to 'output'.

    'input' and 'output' are binary file objects. The 'quotetabs' flag
    indicates whether embedded tabs and spaces should be quoted. Note that
    line-ending tabs and spaces are always encoded, as per RFC 1521.
    The 'header' flag indicates whether we are encoding spaces as _ as per RFC
    1522.N)r   r      
c             S   sj   | r<| dd  dkr<| | d d t| dd   |  n*| dkrX| t| |  n| | |  d S )Ns    	   .)writer   )soutputlineEndr   r   r   r!   ;   s
    (zencode.<locals>.writer   r   r   r   r   s   =
)r$   )r
   readr!   readliner   r   r   appendEMPTYSTRINGjoinr   MAXLINESIZE)inputr#   r   r   dataodatar!   ZprevlinelineZoutlinestrippedr   Zthisliner   r   r   r   ,   s@    	





c             C   sF   t d k	rt | ||dS ddlm} || }| }t|||| | S )N)r   r   r   )BytesIO)r
   ior0   r   getvalue)r"   r   r   r0   infpoutfpr   r   r   r   j   s    c             C   s  t dk	r*|  }t ||d}|| dS d}x|  }|s@P dt| }}|dkr||d | dkrd}	|d }x.|dkr||d | dkr|d }qxW nd}	x*||k r|||d  }
|
dkr|r|d	 }|d }q|
tkr||
 }|d }q|d |kr|	sd}	P q|d |k rR||d |d
  tkrR|t }|d
 }q|d
 |k rt||d |d
  rt||d
 |d  r|tt||d |d  f }|d }q||
 }|d }qW |	s2||d  d}q2W |r|| dS )zRead 'input', apply quoted-printable decoding, and write to 'output'.
    'input' and 'output' are binary file objects.
    If 'header' is true, decode underscore as space (per RFC 1522).N)r   r   r   r   r   s    	r   r         )	r	   r%   r!   r&   r   r   ishexr   unhex)r+   r#   r   r,   r-   newr.   inpartialr   r   r   r   r   u   sR    
   
 
 ( 
B" 
 c             C   sD   t d k	rt | |dS ddlm} || }| }t|||d | S )N)r   r   )r0   )r	   r1   r0   r   r2   )r"   r   r0   r3   r4   r   r   r   r      s    c             C   sV   t | tstd|   ko dkn  pTd|   ko8dkn  pTd|   koPdkS   S )zDReturn true if the byte ordinal 'c' is a hexadecimal digit in ASCII.   0   9   a   f   A   F)r   r   r   )r   r   r   r   r7      s    r7   c             C   s   d}x| D ]}t |f}d|  kr,dkr:n n
td}n`d|  krNdkr`n ntdd }n:d	|  krtd
krn ntd	d }ndstdt| |d t||  }q
W |S )z.Get the integer value of a hexadecimal number.r   r=   r>   0r?   r@   a
   rA   rB   Fznon-hex digit r   )r   r   r   repr)r"   bitsr   r:   r   r   r   r8      s    


r8   c              C   s  dd l } dd l}y|| jdd  d\}}W nV |jk
r } z6| j| _t| td td td | d W d d }~X Y nX d}d}x(|D ] \}}|dkrd}|d	krd}qW |r|r| j| _td
 | d |sdg}d}	x|D ]}
|
dkr| jj	}nNyt
|
d}W n> tk
rR } z| jd|
|f  d}	wW d d }~X Y nX z*|rlt|| jj	 nt|| jj	| W d |
dkr|  X qW |	r| |	 d S )Nr   r   Ztdz"usage: quopri [-t | -d] [file] ...z-t: quote tabsz-d: decode; default encoder5   z-tz-dz -t and -d are mutually exclusive-rbz%s: can't open (%s)
)sysgetoptargverrorstderrstdoutprintexitstdinbufferopenOSErrorr!   r   r   close)rJ   rK   ZoptsargsmsgZdecoZtabsorD   stsfilefpr   r   r   main   sT      
 



r]   __main__)F)FF)F)F)__doc____all__r   r*   r   r(   Zbinasciir	   r
   ImportErrorr   r   r   r   r   r   r7   r8   r]   __name__r   r   r   r   <module>   s*   

>

+
.