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Base abstract class used for mess detection plugins.
All detectors MUST extend and implement given methods.
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Determine if given character should be fed in.
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The main routine to be executed upon character.
Insert the logic in witch the text would be considered chaotic.
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Permit to reset the plugin to the initial state.
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Compute the chaos ratio based on what your feed() has seen.
Must NOT be lower than 0.; No restriction gt 0.
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z)TooManySymbolOrPunctuationPlugin.__init__)r r c C s |� � S )N)� isprintable)r r r r r r C s z)TooManySymbolOrPunctuationPlugin.eligiblec C sp | j d7 _ || jkrf|tkrft|�r8| jd7 _n.|�� dkrft|�rft|�dkrf| jd7 _|| _d S )Nr F� ) r- r. r r r+ �isdigitr r r, )r r r r r r F s
z%TooManySymbolOrPunctuationPlugin.feedc C s d| _ d| _d| _d S )Nr )r+ r- r, )r r r r r X s z&TooManySymbolOrPunctuationPlugin.resetc C s0 | j dkrdS | j| j | j }|dkr,|S dS )Nr g g333333�?)r- r+ r, )r Zratio_of_punctuationr r r r! ] s
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��Z dS )�TooManyAccentuatedPluginN)r c C s d| _ d| _d S )Nr )r- �_accentuated_count)r r r r r/ j s z!TooManyAccentuatedPlugin.__init__)r r c C s |� � S )N)�isalpha)r r r r r r n s z!TooManyAccentuatedPlugin.eligiblec C s( | j d7 _ t|�r$| jd7 _d S )Nr )r- r r4 )r r r r r r q s z TooManyAccentuatedPlugin.feedc C s d| _ d| _d S )Nr )r- r4 )r r r r r w s z TooManyAccentuatedPlugin.resetc C s* | j dkrdS | j| j }|dkr&|S dS )Nr g gffffff�?)r- r4 )r Zratio_of_accentuationr r r r! { s
z TooManyAccentuatedPlugin.ratio) r" r# r$ r/ r& r' r r r r( r) r! r r r r r3 i s r3 c @ sZ e Zd Zdd�dd�Zeed�dd�Zedd�dd �Zdd�d
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��Z dS )�UnprintablePluginN)r c C s d| _ d| _d S )Nr )�_unprintable_countr- )r r r r r/ � s zUnprintablePlugin.__init__)r r c C s dS )NTr )r r r r r r � s zUnprintablePlugin.eligiblec C s@ |� � dkr.|�� dkr.|dkr.| jd7 _| jd7 _d S )NF�r )�isspacer0 r7 r- )r r r r r r � s
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d| _ d S )Nr )r7 )r r r r r � s zUnprintablePlugin.resetc C s | j dkrdS | jd | j S )Nr g � )r- r7 )r r r r r! � s
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��Z dS )� SuspiciousDuplicateAccentPluginN)r c C s d| _ d| _d | _d S )Nr )�_successive_countr- �_last_latin_character)r r r r r/ � s z(SuspiciousDuplicateAccentPlugin.__init__)r r c C s |� � ot|�S )N)r5 r )r r r r r r � s z(SuspiciousDuplicateAccentPlugin.eligiblec C st | j d7 _ | jd k rjt|�rjt| j�rj|�� rJ| j�� rJ| jd7 _t|�t| j�krj| jd7 _|| _d S )Nr )r- r= r �isupperr< r )r r r r r r � s
z$SuspiciousDuplicateAccentPlugin.feedc C s d| _ d| _d | _d S )Nr )r< r- r= )r r r r r � s z%SuspiciousDuplicateAccentPlugin.resetc C s | j dkrdS | jd | j S )Nr g r1 )r- r< )r r r r r! � s
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��Z dS )�SuspiciousRangeN)r c C s d| _ d| _d | _d S )Nr )�"_suspicious_successive_range_countr- �_last_printable_seen)r r r r r/ � s zSuspiciousRange.__init__)r r c C s |� � S )N)r0 )r r r r r r � s zSuspiciousRange.eligiblec C sx | j d7 _ |�� s&t|�s&|tkr0d | _d S | jd krD|| _d S t| j�}t|�}t||�rn| jd7 _|| _d S )Nr )r- r9 r r rA r � is_suspiciously_successive_ranger@ )r r �unicode_range_a�unicode_range_br r r r � s
zSuspiciousRange.feedc C s d| _ d| _d | _d S )Nr )r- r@ rA )r r r r r � s zSuspiciousRange.resetc C s. | j dkrdS | jd | j }|dk r*dS |S )Nr g r1 g�������?)r- r@ )r Z ratio_of_suspicious_range_usager r r r! � s
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��Z dS )�SuperWeirdWordPluginN)r c C s: d| _ d| _d| _d| _d| _d| _d| _d| _d| _d S )Nr F� ) � _word_count�_bad_word_count�_foreign_long_count�_is_current_word_bad�_foreign_long_watchr- �_bad_character_count�_buffer�_buffer_accent_count)r r r r r/ � s z SuperWeirdWordPlugin.__init__)r r c C s dS )NTr )r r r r r r s z SuperWeirdWordPlugin.eligiblec C s� |� � r�d�| j|g�| _t|�r0| jd7 _| jdkr�t|�dksNt|�r�t|�dkr�t|�dkr�t |�dkr�t
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d��Z dS )�CjkInvalidStopPluginu�
GB(Chinese) based encoding often render the stop incorrectly when the content does not fit and
can be easily detected. Searching for the overuse of '丅' and '丄'.
N)r c C s d| _ d| _d S )Nr )�_wrong_stop_count�_cjk_character_count)r r r r r/ \ s z CjkInvalidStopPlugin.__init__)r r c C s dS )NTr )r r r r r r ` s z CjkInvalidStopPlugin.eligiblec C s4 |dkr| j d7 _ d S t|�r0| jd7 _d S )N> � 丅� 丄r )r] r r^ )r r r r r r c s
zCjkInvalidStopPlugin.feedc C s d| _ d| _d S )Nr )r] r^ )r r r r r j s zCjkInvalidStopPlugin.resetc C s | j dk rdS | j| j S )N� g )r^ r] )r r r r r! n s
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��Z dS )�ArchaicUpperLowerPluginN)r c C s. d| _ d| _d| _d| _d| _d | _d| _d S )NFr T)�_buf� _character_count_since_last_sep� _successive_upper_lower_count�#_successive_upper_lower_count_finalr- �_last_alpha_seen�_current_ascii_only)r r r r r/ v s z ArchaicUpperLowerPlugin.__init__)r r c C s dS )NTr )r r r r r r � s z ArchaicUpperLowerPlugin.eligiblec C s$ |� � ot|�}|dk}|r�| jdkr�| jdkrV|�� dkrV| jdkrV| j| j7 _d| _d| _d | _d| _| j d7 _ d| _d S | jdkr�t
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z ArchaicUpperLowerPlugin.feedc C s. d| _ d| _d| _d| _d | _d| _d| _d S )Nr FT)r- rd re rf rg rc rh )r r r r r � s z ArchaicUpperLowerPlugin.resetc C s | j dkrdS | j| j S )Nr g )r- rf )r r r r r! � s
z ArchaicUpperLowerPlugin.ratio) r" r# r$ r/ r& r' r r r r( r) r! r r r r rb u s
* rb )rC rD r c C s~ | dks|dkrdS | |kr dS d| kr4d|kr4dS d| ksDd|krHdS d| ksXd|krld| kshd|krldS | � d�|� d� }}x"|D ]}|tkr�q�||kr�dS q�W | dk|dk }}|s�|r�d | ks�d |kr�dS |r�|r�dS d
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Determine if two Unicode range seen next to each other can be considered as suspicious.
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Compute a mess ratio given a decoded bytes sequence. The maximum threshold does stop the computation earlier.
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