a
    hbòfø  ã                   @   sN   d dl mZ ddlmZ ddlmZmZmZ edg d¢ƒZG dd„ deƒZ	d	S )
é    )Ú
namedtupleé   )ÚCharSetProber)ÚCharacterCategoryÚProbingStateÚSequenceLikelihoodÚSingleByteCharSetModel)Úcharset_nameÚlanguageÚchar_to_order_mapÚlanguage_modelÚtypical_positive_ratioÚkeep_ascii_lettersÚalphabetc                       sb   e Zd ZdZdZdZdZd‡ fdd„	Z‡ fd	d
„Ze	dd„ ƒZ
e	dd„ ƒZdd„ Zdd„ Z‡  ZS )ÚSingleByteCharSetProberé@   i   gffffffî?gš™™™™™©?FNc                    sJ   t t| ƒ ¡  || _|| _|| _d | _d | _d | _d | _	d | _
|  ¡  d S ©N)Úsuperr   Ú__init__Ú_modelÚ	_reversedÚ_name_proberÚ_last_orderÚ_seq_countersÚ_total_seqsÚ_total_charÚ
_freq_charÚreset)ÚselfÚmodelÚreversedÚname_prober©Ú	__class__© ú`/home/httpd/docs/test/DocsMgr/lib/python3.9/site-packages/pip/_vendor/chardet/sbcharsetprober.pyr   3   s    z SingleByteCharSetProber.__init__c                    s:   t t| ƒ ¡  d| _dgt ¡  | _d| _d| _d| _	d S )Néÿ   r   )
r   r   r   r   r   Úget_num_categoriesr   r   r   r   ©r   r"   r$   r%   r   A   s    zSingleByteCharSetProber.resetc                 C   s   | j r| j jS | jjS d S r   )r   r	   r   r(   r$   r$   r%   r	   K   s    z$SingleByteCharSetProber.charset_namec                 C   s   | j r| j jS | jjS d S r   )r   r
   r   r(   r$   r$   r%   r
   R   s    z SingleByteCharSetProber.languagec           	      C   sJ  | j js|  |¡}|s| jS | j j}| j j}|D ]˜}| |tj¡}|tj	k rZ|  j
d7  _
|| jk rÂ|  jd7  _| j| jk rÂ|  jd7  _| js¢|| j | }n|| | j }| j|  d7  < || _q0| j j}| jtjk�rD| j| jk�rD|  ¡ }|| jk�r| j d||¡ tj| _n(|| jk �rD| j d||| j¡ tj| _| jS )Nr   z$%s confidence = %s, we have a winnerz9%s confidence = %s, below negative shortcut threshhold %s)r   r   Úfilter_international_wordsÚstater   r   Úgetr   Ú	UNDEFINEDÚCONTROLr   ÚSAMPLE_SIZEr   r   r   r   r   r	   r   Ú	DETECTINGÚSB_ENOUGH_REL_THRESHOLDÚget_confidenceÚPOSITIVE_SHORTCUT_THRESHOLDÚloggerÚdebugÚFOUND_ITÚ_stateÚNEGATIVE_SHORTCUT_THRESHOLDÚNOT_ME)	r   Úbyte_strr   r   ÚcharÚorderÚlm_catr	   Ú
confidencer$   r$   r%   ÚfeedY   sH    


ÿ
ýzSingleByteCharSetProber.feedc                 C   sL   d}| j dkrHd| jtj  | j  | jj }|| j | j }|dkrHd}|S )Ng{®Gáz„?r   g      ð?g®Gáz®ï?)r   r   r   ÚPOSITIVEr   r   r   r   )r   Úrr$   r$   r%   r1   ‰   s    
ÿÿz&SingleByteCharSetProber.get_confidence)FN)Ú__name__Ú
__module__Ú__qualname__r.   r0   r2   r7   r   r   Úpropertyr	   r
   r>   r1   Ú__classcell__r$   r$   r"   r%   r   -   s   


0r   N)
Úcollectionsr   Úcharsetproberr   Úenumsr   r   r   r   r   r$   r$   r$   r%   Ú<module>   s   ÿ
