Edit File: universaldetector.cpython-37.pyc
B <_9Y�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�loggingZ getLogger�__name__�logger�_has_win_bytes�reset)�selfr � r �J/opt/alt/python37/lib/python3.7/site-packages/chardet/universaldetector.py�__init__Q s zUniversalDetector.__init__c C sZ dddd�| _ d| _d| _d| _tj| _d| _| jr>| j� � x| j D ] }|� � qFW 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. Ng )�encoding� confidence�languageF� ) r r r r r � PURE_ASCIIr r r r r )r �proberr r r r ^ s zUniversalDetector.resetc C s> | j r dS t|�sdS t|t�s(t|�}| js�|�tj�rJdddd�| _nv|�tj tj f�rldddd�| _nT|�d�r�dddd�| _n:|�d �r�d ddd�| _n |�tj tj f�r�d ddd�| _d | _| jd dk r�d | _ dS | j tjk�r.| j�|��rtj| _ n*| j tjk�r.| j�| j| ��r.tj| _ |dd� | _| j tjk�r�| j�s^t| j�| _| j�|�tjk�r:| jj | j� � | jj d�| _d | _ n�| j tjk�r:| j �s�t | j�g| _ | jt!j"@ �r�| j �#t$� � | j �#t%� � x@| j D ]6}|�|�tjk�r�|j |� � |j d�| _d | _ P �q�W | j&�|��r:d | _'dS )a� Takes a chunk of a document and feeds it through all of the relevant charset probers. After calling ``feed``, you can check the value of the ``done`` attribute to see if you need to continue feeding the ``UniversalDetector`` more data, or if it has made a prediction (in the ``result`` attribute). .. note:: You should always call ``close`` when you're done feeding in your document if ``done`` is not already ``True``. Nz UTF-8-SIGg �?� )r r r zUTF-32s �� zX-ISO-10646-UCS-4-3412s ��zX-ISO-10646-UCS-4-2143zUTF-16Tr ���)(r �len� isinstance� bytearrayr � startswith�codecs�BOM_UTF8r � BOM_UTF32_LE� BOM_UTF32_BE�BOM_LE�BOM_BEr r r! �HIGH_BYTE_DETECTOR�search� HIGH_BYTE� ESC_DETECTORr Z ESC_ASCIIr r r �feedr ZFOUND_IT� charset_name�get_confidencer r r r ZNON_CJK�appendr r �WIN_BYTE_DETECTORr )r Zbyte_strr" r r r r3 o s| zUniversalDetector.feedc C s� | j r | jS d| _ | js&| j�d� n�| jtjkrBdddd�| _n�| jtjkr�d}d}d}x,| j D ]"}|slqb|� � }||krb|}|}qbW |r�|| j kr�|j }|j � � }|� � }|�d �r�| jr�| j�||�}|||jd�| _| j�� tjk�rz| jd dk�rz| j�d � xn| j D ]d}|�s �qt|t��rZxF|jD ] }| j�d |j |j|� � � �q4W n| j�d |j |j|� � � �qW | jS ) z� Stop analyzing the current document and come up with a final prediction. :returns: The ``result`` attribute, a ``dict`` with the keys `encoding`, `confidence`, and `language`. Tzno data received!�asciig �?r# )r r r Ng ziso-8859r z no probers hit minimum thresholdz%s %s confidence = %s)r r r r �debugr r r! r1 r r5 �MINIMUM_THRESHOLDr4 �lowerr( r � ISO_WIN_MAP�getr ZgetEffectiveLevelr �DEBUGr& r Zprobers) r Zprober_confidenceZmax_prober_confidenceZ max_proberr" r4 Zlower_charset_namer Z group_proberr r r �close� s` zUniversalDetector.closeN)r � __module__� __qualname__�__doc__r: �re�compiler/ r2 r7 r< r ZALLr r r3 r? r r r r r 3 s" mr )rB r) r rC Zcharsetgroupproberr Zenumsr r r Z escproberr Z latin1proberr Zmbcsgroupproberr Zsbcsgroupproberr �objectr r r r r �<module>$ s