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Edit File: universaldetector.cpython-310.pyc
o �n�_�0 � @ s� d Z ddlZddlZddlZddlmZ ddlmZmZm Z ddl m Z ddl m Z ddlmZ dd lmZ G d d � d e�ZdS ) a Module containing the UniversalDetector detector class, which is the primary class a user of ``chardet`` should use. :author: Mark Pilgrim (initial port to Python) :author: Shy Shalom (original C code) :author: Dan Blanchard (major refactoring for 3.0) :author: Ian Cordasco � N� )�CharSetGroupProber)� InputState�LanguageFilter� ProbingState)�EscCharSetProber)� Latin1Prober)�MBCSGroupProber)�SBCSGroupProberc @ sn e Zd ZdZdZe�d�Ze�d�Ze�d�Z dddd d d d d d�Z e j fdd�Z dd� Zdd� Zdd� ZdS )�UniversalDetectoraq The ``UniversalDetector`` class underlies the ``chardet.detect`` function and coordinates all of the different charset probers. To get a ``dict`` containing an encoding and its confidence, you can simply run: .. code:: u = UniversalDetector() u.feed(some_bytes) u.close() detected = u.result g�������?s [�-�]s (|~{)s [�-�]z Windows-1252z Windows-1250z Windows-1251z Windows-1256z Windows-1253z Windows-1255z Windows-1254z Windows-1257)z iso-8859-1z iso-8859-2z iso-8859-5z iso-8859-6z iso-8859-7z iso-8859-8z iso-8859-9z iso-8859-13c C sN d | _ g | _d | _d | _d | _d | _d | _|| _t� t �| _ d | _ | � � d S )N)�_esc_charset_prober�_charset_probers�result�done� _got_data� _input_state� _last_char� lang_filter�logging� getLogger�__name__�logger�_has_win_bytes�reset)�selfr � r �;/usr/lib/python3/dist-packages/chardet/universaldetector.py�__init__Q s zUniversalDetector.__init__c C sV dddd�| _ d| _d| _d| _tj| _d| _| jr | j� � | j D ]}|� � q"dS )z� Reset the UniversalDetector and all of its probers back to their initial states. This is called by ``__init__``, so you only need to call this directly in between analyses of different documents. N� ��encoding� confidence�languageF� ) r r r r r � PURE_ASCIIr r r r r )r �proberr r r r ^ s �zUniversalDetector.resetc C s6 | j rdS t|�s dS t|t�st|�}| jso|�tj�r%dddd�| _n;|�tj tj f�r6dddd�| _n*|�d�rCdddd�| _n |�d �rPd ddd�| _n|�tj tj f�r`d ddd�| _d | _| jd durod | _ dS | j tjkr�| j�|�r�tj| _ n| j tjkr�| j�| j| �r�tj| _ |dd� | _| j tjkr�| js�t| j�| _| j�|�tjkr�| jj | j� � | jj d�| _d | _ dS dS | j tjk�r| j s�t | j�g| _ | jt!j"@ r�| j �#t$� � | j �#t%� � | j D ]}|�|�tjk�r |j |� � |j d�| _d | _ nq�| j&�|��rd | _'dS dS dS )a� Takes a chunk of a document and feeds it through all of the relevant charset probers. After calling ``feed``, you can check the value of the ``done`` attribute to see if you need to continue feeding the ``UniversalDetector`` more data, or if it has made a prediction (in the ``result`` attribute). .. note:: You should always call ``close`` when you're done feeding in your document if ``done`` is not already ``True``. Nz UTF-8-SIG� �?� r zUTF-32s �� zX-ISO-10646-UCS-4-3412s ��zX-ISO-10646-UCS-4-2143zUTF-16Tr ���)(r �len� isinstance� bytearrayr � startswith�codecs�BOM_UTF8r � BOM_UTF32_LE� BOM_UTF32_BE�BOM_LE�BOM_BEr r r$ �HIGH_BYTE_DETECTOR�search� HIGH_BYTE� ESC_DETECTORr � ESC_ASCIIr r r �feedr �FOUND_IT� charset_name�get_confidencer" r r r �NON_CJK�appendr r �WIN_BYTE_DETECTORr )r �byte_strr% r r r r8 o s� �� � � �� � � � �� �zUniversalDetector.feedc C sf | j r| jS d| _ | js| j�d� nY| jtjkr!dddd�| _nK| jtjkrld}d}d}| j D ]}|s5q0|� � }||krA|}|}q0|rl|| j krl|j }|j � � }|� � }|�d �rd| jrd| j�||�}|||jd�| _| j�� tjkr�| jd du r�| j�d � | j D ]+}|s�q�t|t�r�|jD ]}| j�d |j |j|� � � q�q�| j�d |j |j|� � � q�| jS ) z� Stop analyzing the current document and come up with a final prediction. :returns: The ``result`` attribute, a ``dict`` with the keys `encoding`, `confidence`, and `language`. Tzno data received!�asciir& r' r Nr ziso-8859r z no probers hit minimum thresholdz%s %s confidence = %s)r r r r �debugr r r$ r5 r r; �MINIMUM_THRESHOLDr: �lowerr, r � ISO_WIN_MAP�getr" �getEffectiveLevelr �DEBUGr* r �probers) r �prober_confidence�max_prober_confidence� max_proberr% r: �lower_charset_namer! � group_proberr r r �close� sn � � �� ���zUniversalDetector.closeN)r � __module__� __qualname__�__doc__rB �re�compiler3 r6 r> rD r �ALLr r r8 rN r r r r r 3 s& � mr )rQ r- r rR �charsetgroupproberr �enumsr r r � escproberr � latin1proberr �mbcsgroupproberr �sbcsgroupproberr �objectr r r r r �<module> s