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r" c C sB t j | � d d � } | d k r> | j t j d | � � S| S)aS Encode a byte string using Base64.
s is the byte string to encode. Optional altchars must be a byte
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'+' and '/' characters. This allows an application to
e.g. generate url or filesystem safe Base64 strings.
The encoded byte string is returned.
N� s +/���)�binascii�
b2a_base64� translate�bytes� maketrans)r �altchars�encodedr r r! r 3 s Fc C sz t | � } | d k rB t | � } | j t j | d � � } n | rm t j d | � rm t j d � � n t j | � S)a Decode a Base64 encoded byte string.
s is the byte string to decode. Optional altchars must be a
string of length 2 which specifies the alternative alphabet used
instead of the '+' and '/' characters.
The decoded string is returned. A binascii.Error is raised if s is
incorrectly padded.
If validate is False (the default), non-base64-alphabet characters are
discarded prior to the padding check. If validate is True,
non-base64-alphabet characters in the input result in a binascii.Error.
Ns +/s ^[A-Za-z0-9+/]*={0,2}$zNon-base64 digit found) r" r' r( r) �re�matchr% �Error�
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t | � S)a Decode a byte string encoded with the standard Base64 alphabet.
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)r )r r r r! r d s s +/s -_c C s t | � j t � S)z�Encode a byte string using a url-safe Base64 alphabet.
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)r r' �_urlsafe_encode_translation)r r r r! r r s c C s% t | � } | j t � } t | � S)aX Decode a byte string encoded with the standard Base64 alphabet.
s is the byte string to decode. The decoded byte string is
returned. binascii.Error is raised if the input is incorrectly
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s ABCDEFGHIJKLMNOPQRSTUVWXYZ234567c s� t d k rA d d � t D� � � f d d � � D� a d � n t | t � se t | � j � } n t | � d } | r� | t d | � } n t � } t j
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| d d � <n] | d k rfd | d d � <n> | d k r�d | d d � <n | d k r�d | d d � <n t | � S)zrEncode a byte string using Base32.
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s is the byte string to decode. Optional casefold is a flag
specifying whether a lowercase alphabet is acceptable as input.
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RFC 3548 allows for optional mapping of the digit 0 (zero) to the
letter O (oh), and for optional mapping of the digit 1 (one) to
either the letter I (eye) or letter L (el). The optional argument
map01 when not None, specifies which letter the digit 1 should be
mapped to (when map01 is not None, the digit 0 is always mapped to
the letter O). For security purposes the default is None, so that
0 and 1 are not allowed in the input.
The decoded byte string is returned. binascii.Error is raised if
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characters present in the input.
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<dictcomp>� s z b32decode.<locals>.<dictcomp>� zIncorrect paddings 01� OrA r r8 zNon-base32 digit foundr9 r# r@ r> r? r= r$ ������rQ rC rQ rB rQ )�_b32rev� enumeraterE r" rF r% r. r' r( r) �upper�rstriprG rJ �KeyError�to_bytes) r �casefoldZmap01�lZpadchars�decodedZb32revr3 Zquanta�accrK �lastr r r! r � sJ "
c C s t j | � j � S)zrEncode a byte string using Base16.
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s c C sR t | � } | r! | j � } n t j d | � rE t j d � � n t j | � S)a� Decode a Base16 encoded byte string.
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foldspacesr r! r4 0 s z _85encode.<locals>.<listcomp>r# r_ r r8 � r$ r$ r$ r$ ) r r r r rF �struct�StructZunpack�join) r6 rb rc �padrd re �paddingZwords�chunksr )rb rc rd re r! � _85encode& s &
rm re �wrapcolrj �adobec s t d k r> d d � t d d � D� a d d � t D� a n t | t t | d | � � | rl t � � n � r t | r� d n d � � � � � f d
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j | � � n | r� t 7� n � S)a Encode a byte string using Ascii85.
b is the byte string to encode. The encoded byte string is returned.
foldspaces is an optional flag that uses the special short sequence 'y'
instead of 4 consecutive spaces (ASCII 0x20) as supported by 'btoa'. This
feature is not supported by the "standard" Adobe encoding.
wrapcol controls whether the output should have newline ('\n') characters
added to it. If this is non-zero, each output line will be at most this
many characters long.
pad controls whether the input string is padded to a multiple of 4 before
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adobe controls whether the encoded byte sequence is framed with <~ and ~>,
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� } n | S)ac Decode an Ascii85 encoded byte string.
s is the byte string to decode.
foldspaces is a flag that specifies whether the 'y' short sequence should be
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not supported by the "standard" Adobe encoding.
adobe controls whether the input sequence is in Adobe Ascii85 format (i.e.
is framed with <~ and ~>).
ignorechars should be a byte string containing characters to ignore from the
input. This should only contain whitespace characters, and by default
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zAAscii85 encoded byte sequences must be bracketed by {!r} and {!r}r> z!I� ur? � !r r8 ra rp zAscii85 overflowNr_ zz inside Ascii85 5-tuples r` zy inside Ascii85 5-tuples zNon-Ascii85 digit found: %crf rR s uuuurp �u �z �y )r" �
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sU 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!#$%&()*+-;<=>?@^_`{|}~c C sH t d k r5 d d � t D� a d d � t D� a n t | t t | � S)z�Encode an ASCII-encoded byte array in base85 format.
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rV } z$ d | j j } t | � | � WYd d } ~ Xn X| j d k r� d | j | j j f } t | � � n | j d k r� d | j | j j f } t | � � n d S) Nz"expected bytes-like object, not %srK r6 �Bz-expected single byte elements, not %r from %sr# z(expected 1-D data, not %d-D data from %s)rK r6 r� )r r r r r� �ndim)r �m�err�msgr r r! �_input_type_check s "r� c C sj t | � g } xJ t d t | � t � D]0 } | | | t � } | j t j | � � q) Wd j | � S)zTEncode a bytestring into a bytestring containing multiple lines
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c C s) d d l } | j d t d � t | � S)z Legacy alias of encodebytes().r Nz7encodestring() is a deprecated alias, use encodebytes()r> )�warnings�warn�DeprecationWarningr )r r� r r r! � encodestring s
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