o
    ™Mfö  ã                   @   s0   d dl Z d dlZddlmZ G dd„ deƒZdS )é    Né   )ÚProbingStatec                   @   sn   e Zd ZdZddd„Zdd„ Zedd„ ƒZd	d
„ Zedd„ ƒZ	dd„ Z
edd„ ƒZedd„ ƒZedd„ ƒZdS )ÚCharSetProbergffffffî?Nc                 C   s   d | _ || _t t¡| _d S ©N)Ú_stateÚlang_filterÚloggingÚ	getLoggerÚ__name__Úlogger)Úselfr   © r   úc/var/www/html/analyze/labelStudio/lib/python3.10/site-packages/pip/_vendor/chardet/charsetprober.pyÚ__init__'   s   zCharSetProber.__init__c                 C   s   t j| _d S r   )r   Ú	DETECTINGr   ©r   r   r   r   Úreset,   s   zCharSetProber.resetc                 C   ó   d S r   r   r   r   r   r   Úcharset_name/   s   zCharSetProber.charset_namec                 C   r   r   r   )r   Úbufr   r   r   Úfeed3   ó   zCharSetProber.feedc                 C   s   | j S r   )r   r   r   r   r   Ústate6   s   zCharSetProber.statec                 C   s   dS )Ng        r   r   r   r   r   Úget_confidence:   r   zCharSetProber.get_confidencec                 C   s   t  dd| ¡} | S )Ns   ([ -])+ó    )ÚreÚsub)r   r   r   r   Úfilter_high_byte_only=   s   z#CharSetProber.filter_high_byte_onlyc                 C   s\   t ƒ }t d| ¡}|D ] }| |dd… ¡ |dd… }| ¡ s&|dk r&d}| |¡ q|S )u9  
        We define three types of bytes:
        alphabet: english alphabets [a-zA-Z]
        international: international characters [Â€-Ã¿]
        marker: everything else [^a-zA-ZÂ€-Ã¿]

        The input buffer can be thought to contain a series of words delimited
        by markers. This function works to filter all words that contain at
        least one international character. All contiguous sequences of markers
        are replaced by a single space ascii character.

        This filter applies to all scripts which do not use English characters.
        s%   [a-zA-Z]*[€-ÿ]+[a-zA-Z]*[^a-zA-Z€-ÿ]?Néÿÿÿÿó   €r   )Ú	bytearrayr   ÚfindallÚextendÚisalpha)r   ÚfilteredÚwordsÚwordÚ	last_charr   r   r   Úfilter_international_wordsB   s   ÿz(CharSetProber.filter_international_wordsc                 C   s¤   t ƒ }d}d}tt| ƒƒD ]7}| ||d … }|dkrd}n|dkr$d}|dk rD| ¡ sD||kr@|s@| | ||… ¡ | d¡ |d }q|sP| | |d	… ¡ |S )
aÈ  
        Returns a copy of ``buf`` that retains only the sequences of English
        alphabet and high byte characters that are not between <> characters.
        Also retains English alphabet and high byte characters immediately
        before occurrences of >.

        This filter can be applied to all scripts which contain both English
        characters and extended ASCII characters, but is currently only used by
        ``Latin1Prober``.
        Fr   r   ó   >ó   <Tr   r   N)r    ÚrangeÚlenr#   r"   )r   r$   Úin_tagÚprevÚcurrÚbuf_charr   r   r   Úfilter_with_english_lettersg   s$   
€z)CharSetProber.filter_with_english_lettersr   )r
   Ú
__module__Ú__qualname__ÚSHORTCUT_THRESHOLDr   r   Úpropertyr   r   r   r   Ústaticmethodr   r(   r1   r   r   r   r   r   #   s     




$r   )r   r   Úenumsr   Úobjectr   r   r   r   r   Ú<module>   s   