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This is Victor Stinner's pure-Python implementation of PEP 383: the "surrogateescape" error
handler of Python 3.
Source: misc/python/surrogateescape.py in https://bitbucket.org/haypo/misc
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Pure Python implementation of the PEP 383: the "surrogateescape" error
handler of Python 3. Undecodable bytes will be replaced by a Unicode
character U+DCxx on decoding, and these are translated into the
original bytes on encoding.
) �object�start�end�
isinstance�UnicodeDecodeError�replace_surrogate_decode�UnicodeEncodeError�replace_surrogate_encode�NotASurrogateError)�exc�mystring�decodedr r r �surrogateescape_handler( s
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Returns a (unicode) string, not the more logical bytes, because the codecs
register_error functionality expects this.
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Returns a (unicode) string
� � r% � )r �intr& r' r( r r) r* )�mybytesr r+ r r r r r d s
r c C s6 t dkrDg }t| �D ]3\}}t|�}|dk rt|�}n d| kr%dkr.n nt|d �}n
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kr�n n"d| krldkrzn n t|d �}|�|� qNtt | ||d d ��|�d�}|�|� qNt� �|�S | �t t �S ) N�asciir, i�� r$ r% � zordinal not in range(128)zutf-8r# i�� zsurrogates not allowed)
� FS_ENCODING� enumerater& � bytes_chrr r' r r* r � FS_ERRORS)�fn�encoded�indexr+ r �ch_utf8r r r �encodefilename} s<
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r; c C s | � tt�S r )r r3 r6 )r7 r r r �decodefilename� s r< r1 u [abcÿ]u [abc�]c C s< t jrdS zt�t� W dS ty t�tt� Y dS w )zH
Registers the surrogateescape error handler on Python 2 (only)
N)r r �codecs� lookup_errorr6 � LookupError�register_errorr r r r r �register_surrogateescape� s �rA �__main__)�__doc__r= �sys�futurer r6 r
r r �chrr( r5 �unichrr � Exceptionr r r r; r< r3 r7 r8 �lookup�namerA r r r r r �<module> s0
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