o
    g                     @   s0   d dl Z d dlZddlmZ G dd deZdS )    N   )ProbingStatec                   @   sn   e Zd ZdZdddZdd Zedd Zd	d
 Zedd Z	dd Z
edd Zedd Zedd ZdS )CharSetProbergffffff?Nc                 C   s   d | _ || _tt| _d S N)_statelang_filterlogging	getLogger__name__logger)selfr    r   _/home/ubuntu/cloudmapper/venv/lib/python3.10/site-packages/pip/_vendor/chardet/charsetprober.py__init__'   s   zCharSetProber.__init__c                 C   s   t j| _d S r   )r   	DETECTINGr   r   r   r   r   reset,   s   zCharSetProber.resetc                 C      d S r   r   r   r   r   r   charset_name/   s   zCharSetProber.charset_namec                 C   r   r   r   )r   bufr   r   r   feed3      zCharSetProber.feedc                 C   s   | j S r   )r   r   r   r   r   state6   s   zCharSetProber.statec                 C   s   dS )Ng        r   r   r   r   r   get_confidence:   r   zCharSetProber.get_confidencec                 C   s   t dd| } | S )Ns   ([ -])+    )resub)r   r   r   r   filter_high_byte_only=   s   z#CharSetProber.filter_high_byte_onlyc                 C   s\   t  }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 [-ÿ]
        marker: everything else [^a-zA-Z-ÿ]

        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]*[-]+[a-zA-Z]*[^a-zA-Z-]?N   r   )	bytearrayr   findallextendisalpha)r   filteredwordsword	last_charr   r   r   filter_international_wordsB   s   z(CharSetProber.filter_international_wordsc                 C   s   t  }d}d}tt| 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 )
a  
        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      >   <Tr   r   N)r    rangelenr#   r"   )r   r$   in_tagprevcurrbuf_charr   r   r   filter_with_english_lettersg   s$   
z)CharSetProber.filter_with_english_lettersr   )r
   
__module____qualname__SHORTCUT_THRESHOLDr   r   propertyr   r   r   r   staticmethodr   r(   r1   r   r   r   r   r   #   s     




$r   )r   r   enumsr   objectr   r   r   r   r   <module>   s   