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��YZdS(s8Basic message object for the email package object model.tMessagei����N(tStringIO(tutils(terrorss; s[ \(\)<>@,;:\\"/\[\]\?=]cCsD|jd�\}}}|s.|j�dfS|j�|j�fS(Nt;(t	partitiontstriptNone(tparamtatseptb((s%/usr/lib64/python2.7/email/message.pyt_splitparamscCs�|dk	r�t|�dkr�t|t�r[|d7}tj|d|d|d�}n|sptj|�r�d|tj|�fSd||fSn|SdS(s�Convenience function to format and return a key=value pair.

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    multipart or a message/rfc822), then the payload is a list of Message
    objects, otherwise it is a string.

    Message objects implement part of the `mapping' interface, which assumes
    there is exactly one occurrence of the header per message.  Some headers
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        Optional decode is a flag indicating whether the payload should be
        decoded or not, according to the Content-Transfer-Encoding header
        (default is False).

        When True and the message is not a multipart, the payload will be
        decoded if this header's value is `quoted-printable' or `base64'.  If
        some other encoding is used, or the header is missing, or if the
        payload has bogus data (i.e. bogus base64 or uuencoded data), the
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        Content-Type field.  Anything else will generate a TypeError.

        The message will be assumed to be of type text/* encoded with
        charset.input_charset.  It will be converted to charset.output_charset
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        representation of the message.  MIME headers (MIME-Version,
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        These will be sorted in the order they appeared in the original
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cCs\g}|j�}x9|jD].\}}|j�|kr|j|�qqW|sX|S|S(sQReturn a list of all the values for the named field.

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        name is the header field to add.  keyword arguments can be used to set
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        value is None, in which case only the key will be added.  If a
        parameter value contains non-ASCII characters it must be specified as a
        three-tuple of (charset, language, value), in which case it will be
        encoded according to RFC2231 rules.

        Example:

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        message, the default type as given by get_default_type() will be
        returned.  Since according to RFC 2045, messages always have a default
        type this will always return a value.

        RFC 2045 defines a message's default type to be text/plain unless it
        appears inside a multipart/digest container, in which case it would be
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        while the right hand side is the value.  If there is no `=' sign in
        the parameter the value is the empty string.  The value is as
        described in the get_param() method.

        Optional failobj is the object to return if there is no Content-Type
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        Parameter keys are always compared case insensitively.  The return
        value can either be a string, or a 3-tuple if the parameter was RFC
        2231 encoded.  When it's a 3-tuple, the elements of the value are of
        the form (CHARSET, LANGUAGE, VALUE).  Note that both CHARSET and
        LANGUAGE can be None, in which case you should consider VALUE to be
        encoded in the us-ascii charset.  You can usually ignore LANGUAGE.

        Your application should be prepared to deal with 3-tuple return
        values, and can convert the parameter to a Unicode string like so:

            param = msg.get_param('foo')
            if isinstance(param, tuple):
                param = unicode(param[2], param[0] or 'us-ascii')

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        value will be appended as per RFC 2045.

        An alternate header can be specified in the header argument, and all
        parameters will be quoted as necessary unless requote is False.

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        header's quoting as is.  Otherwise, the parameters will be quoted (the
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Cs�t�}|j|d�}||kr9tjd��ng}t}xY|D]Q\}}|j�dkr�|jdd|f�t}qL|j||f�qLW|s�|jdd|f�ng}x�|jD]�\}	}
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r�|SX|j	�S(s�Return the charset parameter of the Content-Type header.

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        Each item will either be a string (the value of the charset parameter
        in the Content-Type header of that part) or the value of the
        'failobj' parameter (defaults to None), if the part does not have a
        main MIME type of "text", or the charset is not defined.

        The list will contain one string for each part of the message, plus
        one for the container message (i.e. self), so that a non-multipart
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