관리-도구
편집 파일: utils.cpython-37.pyc
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Nr) �ignore)�errorsr �-�_) � isinstance�bytes� TypeError�lenr r �min�decode�lower�replacer r% )rO rP Zseq_len�resultsZspecified_encoding�encoding_alias� encoding_ianar r r �any_specified_encoding� s r` � )r r c C s | dkp t t�d�| ��jt�S )zQ Verify is a specific encoding is a multi byte one based on it IANA name > �utf_8� utf_32_be�utf_16� utf_32_le�utf_7� utf_8_sig�utf_32� utf_16_le� utf_16_bez encodings.{})� issubclass� importlib� import_module�formatr r )r r r r �is_multi_byte_encoding� s ro )rO r c C sJ xDt D ]<}t | }t|t�r"|g}x |D ]}| �|�r(||fS q(W qW dS )z9 Identify and extract SIG/BOM in given sequence. )N� )r rU rV � startswith)rO � iana_encodingZmarksZmarkr r r �identify_sig_or_bom� s rs )rr r c C s | dkS )N> rh rd r )rr r r r �should_strip_sig_or_bom s rt T)�cp_name�strictr c C sL | � � �dd�} x$t�� D ]\}}| ||gkr|S qW |rHtd�| ���| S )NrS rT z Unable to retrieve IANA for '{}')r[ r\ r r% r rn )ru rv r^ r_ r r r � iana_name s rw )�decoded_sequencer c C s8 t � }x(| D ] }t|�}|d kr"q |�|� q W t|�S )N)�setr' �add�list)rx Zrangesr r0 r r r � range_scan s r| )� iana_name_a� iana_name_br c C s� t | �st |�rdS t�d�| ��j}t�d�|��j}|dd�}|dd�}d}x6td�D ]*}t|g�}|�|�|�|�krZ|d7 }qZW |d S ) Ng z encodings.{}rQ )rR r � r � )ro rl rm rn r �rangerV rZ ) r} r~ Z decoder_aZ decoder_bZid_aZid_bZcharacter_match_count�iZ to_be_decodedr r r � cp_similarity+ s r� c C s | t ko|t | kS )z� Determine if two code page are at least 80% similar. 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