U
    bOO                     @   s  d dl Z d dlmZmZ d dlmZmZmZmZ zd dl	m
Z
 W n ek
rX   eZ
Y nX ddlmZmZmZmZ ddlmZmZmZmZ ddlmZ dd	lmZmZ dd
lmZmZmZm Z m!Z!m"Z" e #dZ$e % Z&e&'e (d de)e*e*e+ee ee e,e,ed	ddZ-dee*e*e+ee ee e,e,ed	ddZ.d e
e*e*e+ee ee e,e,ed	ddZ/d!e
e*e*e+ee ee e,edddZ0dS )"    N)basenamesplitext)BinaryIOListOptionalSet)PathLike   )coherence_ratioencoding_languagesmb_encoding_languagesmerge_coherence_ratios)IANA_SUPPORTEDTOO_BIG_SEQUENCETOO_SMALL_SEQUENCETRACE)
mess_ratio)CharsetMatchCharsetMatches)any_specified_encoding	iana_nameidentify_sig_or_bomis_cp_similaris_multi_byte_encodingshould_strip_sig_or_bomZcharset_normalizerz)%(asctime)s | %(levelname)s | %(message)s      皙?TF)		sequencessteps
chunk_size	thresholdcp_isolationcp_exclusionpreemptive_behaviourexplainreturnc           1      C   s	  t | ttfs tdt| |r>tj}tt	 t
t t| }	|	dkrtd |rvtt	 t
|prtj tt| dddg dgS |dk	rttd	d
| dd |D }ng }|dk	rttdd
| dd |D }ng }|	|| krttd|||	 d}|	}|dkr:|	| |k r:t|	| }t| tk }
t| tk}|
rlttd|	 n|rttd|	 g }|rt| nd}|dk	r|| ttd| t }g }g }d}d}d}t }t| \}}|dk	r|| ttdt|| |d d|kr.|d |t D ]z}|rP||krPq6|rd||krdq6||krrq6|| d}||k}|ot|}|dkr|sttd| q6zt|}W n. t t!fk
r   ttd| Y q6Y nX zr|r>|dkr>t"|dkr"| dtd n| t|td |d n&t"|dkrN| n| t|d |d}W n\ t#t$fk
r } z8t |t$sttd|t"| || W Y q6W 5 d}~X Y nX d}|D ]}t%||rd} qq|rttd|| q6t&|sdnt||	t|	| }|o@|dk	o@t||	k } | rVttd| tt|d }!t'|!d }!d}"d}#g }$g }%|D ]}&|&| |	d! krq| |&|&|  }'|r|dkr||' }'z|'j(||rd"nd#d$}(W nL t#k
r0 } z,ttd%|t"| |!}"d}#W Y 
 q,W 5 d}~X Y nX |r|&dkr| |& d&krt)|d'})|r|(d|) |krt&|&|&d d(D ]T}*| |*|&|  }'|r|dkr||' }'|'j(|d"d$}(|(d|) |kr qؐq|$|( |%t*|(| |%d( |kr|"d7 }"|"|!ks"|r|dkr q,q|#s|r|sz| td)d j(|d#d$ W nL t#k
r } z,ttd*|t"| || W Y q6W 5 d}~X Y nX |%rt+|%t|% nd}+|+|ks|"|!krP|| ttd+||"t,|+d, d-d. |dd|fkr6|#s6t| ||dg |},||kr8|,}n|dkrH|,}n|,}q6ttd/|t,|+d, d-d. |s|t-|}-nt.|}-|-rttd0|t"|- g }.|dkr|$D ],}(t/|(d1|-rd2|-nd}/|.|/ qt0|.}0|0rttd3|0| |t| ||+||0| ||ddfkrn|+d1k rntd4| |r\tt	 t
| t|| g  S ||kr6td5| |rtt	 t
| t|| g  S q6t|dk	rd|s|s|rttd6 |	r td7|j1 || nd|	r|dk	s4|	r*|	r*|j2|j2k	s4|dk		rJtd8 || n|	rdtd9 || |	rtd:|3 j1t|d  n
td; |	rtt	 t
| |S )<ae  
    Given a raw bytes sequence, return the best possibles charset usable to render str objects.
    If there is no results, it is a strong indicator that the source is binary/not text.
    By default, the process will extract 5 blocs of 512o each to assess the mess and coherence of a given sequence.
    And will give up a particular code page after 20% of measured mess. Those criteria are customizable at will.

    The preemptive behavior DOES NOT replace the traditional detection workflow, it prioritize a particular code page
    but never take it for granted. Can improve the performance.

    You may want to focus your attention to some code page or/and not others, use cp_isolation and cp_exclusion for that
    purpose.

    This function will strip the SIG in the payload/sequence every time except on UTF-16, UTF-32.
    By default the library does not setup any handler other than the NullHandler, if you choose to set the 'explain'
    toggle to True it will alter the logger configuration to add a StreamHandler that is suitable for debugging.
    Custom logging format and handler can be set manually.
    z4Expected object of type bytes or bytearray, got: {0}r   z<Encoding detection on empty bytes, assuming utf_8 intention.utf_8g        F Nz`cp_isolation is set. use this flag for debugging purpose. limited list of encoding allowed : %s.z, c                 S   s   g | ]}t |d qS Fr   .0cp r.   :/tmp/pip-unpacked-wheel-2ta4nrol/charset_normalizer/api.py
<listcomp>]   s     zfrom_bytes.<locals>.<listcomp>zacp_exclusion is set. use this flag for debugging purpose. limited list of encoding excluded : %s.c                 S   s   g | ]}t |d qS r)   r*   r+   r.   r.   r/   r0   h   s     z^override steps (%i) and chunk_size (%i) as content does not fit (%i byte(s) given) parameters.r	   z>Trying to detect encoding from a tiny portion of ({}) byte(s).zIUsing lazy str decoding because the payload is quite large, ({}) byte(s).z@Detected declarative mark in sequence. Priority +1 given for %s.zIDetected a SIG or BOM mark on first %i byte(s). Priority +1 given for %s.ascii>   utf_32utf_16z[Encoding %s wont be tested as-is because it require a BOM. Will try some sub-encoder LE/BE.z2Encoding %s does not provide an IncrementalDecoderg    A)encodingz9Code page %s does not fit given bytes sequence at ALL. %sTzW%s is deemed too similar to code page %s and was consider unsuited already. Continuing!zpCode page %s is a multi byte encoding table and it appear that at least one character was encoded using n-bytes.         ignorestrict)errorszaLazyStr Loading: After MD chunk decode, code page %s does not fit given bytes sequence at ALL. %s      g     j@z^LazyStr Loading: After final lookup, code page %s does not fit given bytes sequence at ALL. %szc%s was excluded because of initial chaos probing. Gave up %i time(s). Computed mean chaos is %f %%.d      )ndigitsz=%s passed initial chaos probing. Mean measured chaos is %f %%z&{} should target any language(s) of {}g?,z We detected language {} using {}z.Encoding detection: %s is most likely the one.zoEncoding detection: %s is most likely the one as we detected a BOM or SIG within the beginning of the sequence.zONothing got out of the detection process. Using ASCII/UTF-8/Specified fallback.z7Encoding detection: %s will be used as a fallback matchz:Encoding detection: utf_8 will be used as a fallback matchz:Encoding detection: ascii will be used as a fallback matchz]Encoding detection: Found %s as plausible (best-candidate) for content. With %i alternatives.z=Encoding detection: Unable to determine any suitable charset.)4
isinstance	bytearraybytes	TypeErrorformattypeloggerlevel
addHandlerexplain_handlersetLevelr   lendebugremoveHandlerloggingWARNINGr   r   logjoinintr   r   r   appendsetr   r   addr   r   ModuleNotFoundErrorImportErrorstrUnicodeDecodeErrorLookupErrorr   rangemaxdecodeminr   sumroundr   r   r
   r   r4   fingerprintbest)1r   r   r    r!   r"   r#   r$   r%   Zprevious_logger_levellengthZis_too_small_sequenceZis_too_large_sequenceZprioritized_encodingsZspecified_encodingZtestedZtested_but_hard_failureZtested_but_soft_failureZfallback_asciiZfallback_u8Zfallback_specifiedresultsZsig_encodingZsig_payloadZencoding_ianaZdecoded_payloadZbom_or_sig_availableZstrip_sig_or_bomZis_multi_byte_decodereZsimilar_soft_failure_testZencoding_soft_failedZr_Zmulti_byte_bonusZmax_chunk_gave_upZearly_stop_countZlazy_str_hard_failureZ	md_chunksZ	md_ratiosiZcut_sequencechunkZchunk_partial_size_chkjZmean_mess_ratioZfallback_entryZtarget_languagesZ	cd_ratiosZchunk_languagesZcd_ratios_mergedr.   r.   r/   
from_bytes%   s   




























     


 
    





	






rk   )	fpr   r    r!   r"   r#   r$   r%   r&   c              	   C   s   t |  |||||||S )z
    Same thing than the function from_bytes but using a file pointer that is already ready.
    Will not close the file pointer.
    )rk   read)rl   r   r    r!   r"   r#   r$   r%   r.   r.   r/   from_fp  s    rn   )	pathr   r    r!   r"   r#   r$   r%   r&   c           	   
   C   s8   t | d$}t||||||||W  5 Q R  S Q R X dS )z
    Same thing than the function from_bytes but with one extra step. Opening and reading given file path in binary mode.
    Can raise IOError.
    rbN)openrn   )	ro   r   r    r!   r"   r#   r$   r%   rl   r.   r.   r/   	from_path  s    rr   )ro   r   r    r!   r"   r#   r$   r&   c              	   C   s   t | ||||||}t| }tt|}	t|dkrBtd|| }
|	d  d|
j 7  < t	dt
| |d|	d}||
  W 5 Q R X |
S )zi
    Take a (text-based) file path and try to create another file next to it, this time using UTF-8.
    r   z;Unable to normalize "{}", no encoding charset seems to fit.-z{}r(   wb)rr   r   listr   rM   IOErrorrF   rd   r4   rq   rZ   replacerS   writeoutput)ro   r   r    r!   r"   r#   r$   rf   filenameZtarget_extensionsresultrl   r.   r.   r/   	normalize7  s4    
 r|   )r   r   r   NNTF)r   r   r   NNTF)r   r   r   NNTF)r   r   r   NNT)1rP   os.pathr   r   typingr   r   r   r   osr   rY   rZ   Zcdr
   r   r   r   Zconstantr   r   r   r   Zmdr   modelsr   r   utilsr   r   r   r   r   r   	getLoggerrH   StreamHandlerrK   setFormatter	FormatterrD   rT   floatboolrk   rn   rr   r|   r.   r.   r.   r/   <module>   s   
 
          b                    