????
Your IP : 3.15.3.240
a
��=b� � @ sN d dl mZ ddlmZ ddlmZmZmZ edg d��ZG dd� de�Z d S )
� )�
namedtuple� )�
CharSetProber)�CharacterCategory� ProbingState�SequenceLikelihood�SingleByteCharSetModel)� charset_name�language�char_to_order_map�language_model�typical_positive_ratio�keep_ascii_lettersZalphabetc sb e Zd ZdZdZdZdZd� fdd� Z� fd d
�Ze d d � �Z
e d
d� �Z dd� Z dd� Z
� ZS )�SingleByteCharSetProber�@ i gffffff�?g�������?FNc sJ t t| ��� || _|| _|| _d | _d | _d | _d | _ d | _
| � � d S �N) �superr �__init__�_model� _reversed� _name_prober� _last_order�
_seq_counters� _total_seqs� _total_char�
_freq_char�reset)�selfZmodel�reversedZ name_prober�� __class__� �;/usr/lib/python3.9/site-packages/chardet/sbcharsetprober.pyr 3 s z SingleByteCharSetProber.__init__c s: t t| ��� d| _dgt�� | _d| _d| _d| _ d S )N� r )
r r r r r Zget_num_categoriesr r r r �r r r! r" r A s z SingleByteCharSetProber.resetc C s | j r| j jS | jjS d S r )r r r r$ r! r! r" r K s z$SingleByteCharSetProber.charset_namec C s | j r| j jS | jjS d S r )r r
r r$ r! r! r" r
R s z SingleByteCharSetProber.languagec C sJ | j js| �|�}|s | jS | j j}| j j}|D ]�}|�|tj�}|tj k rZ| j
d7 _
|| j k r�| j d7 _ | j
| j k r�| jd7 _| js�|| j
| }n|| | j
}| j| d7 < || _
q0| j j}| jtjk�rD| j| jk�rD| �� }|| jk�r | j�d||� tj| _n(|| jk �rD| j�d||| j� tj | _| jS )Nr z$%s confidence = %s, we have a winnerz9%s confidence = %s, below negative shortcut threshhold %s) r r Zfilter_international_words�stater r �getr Z UNDEFINEDZCONTROLr � SAMPLE_SIZEr r r r r r r Z DETECTING�SB_ENOUGH_REL_THRESHOLD�get_confidence�POSITIVE_SHORTCUT_THRESHOLD�logger�debugZFOUND_IT�_state�NEGATIVE_SHORTCUT_THRESHOLDZNOT_ME) r Zbyte_strr r �char�orderZlm_catr Z
confidencer! r! r" �feedY sH
�
�z SingleByteCharSetProber.feedc C sL d}| j dkrHd| jtj | j | jj }|| j | j }|dkrHd}|S )Ng{�G�z�?r g �?g�G�z��?)r r r ZPOSITIVEr r
r r )r �rr! r! r" r) � s
��z&SingleByteCharSetProber.get_confidence)FN)�__name__�
__module__� __qualname__r' r( r* r. r r �propertyr r
r1 r) �
__classcell__r! r! r r" r - s
0r N)
� collectionsr Z
charsetproberr Zenumsr r r r r r! r! r! r" �<module> s �