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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.
r r r" r" r# �feed* s zMessDetectorPlugin.feedc C r )zB
Permit to reset the plugin to the initial state.
r �r! r" r" r# �reset1 r% zMessDetectorPlugin.resetc C r )z�
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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_symbol_count�_character_count�_last_printable_charZ_frenzy_symbol_in_wordr' r" r" r# �__init__A s
z)TooManySymbolOrPunctuationPlugin.__init__r c C � |� � S �N�� isprintabler r" r" r# r$ I � z)TooManySymbolOrPunctuationPlugin.eligiblec C sp | j d7 _ || jkr3|tvr3t|�r | jd7 _n|�� du r3t|�r3t|�du r3| jd7 _|| _d S )Nr F� ) r7 r8 r r r5 �isdigitr r r6 r r" r" r# r& L s
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z%TooManySymbolOrPunctuationPlugin.feedc C s d| _ d| _d| _d S �Nr )r5 r7 r6 r' r" r" r# r( ^ �
z&TooManySymbolOrPunctuationPlugin.resetc C s0 | j dkrdS | j| j | j }|dkr|S dS )Nr � �333333�?)r7 r5 r6 )r! Zratio_of_punctuationr" r" r# r) c s
�z&TooManySymbolOrPunctuationPlugin.ratior* � r+ r, r- r9 r/ r0 r$ r& r( r1 r2 r) r" r" r" r# r4 @ s
r4 c @ r3 )�TooManyAccentuatedPluginr Nc C � d| _ d| _d S rA �r7 �_accentuated_countr' r" r" r# r9 p �
z!TooManyAccentuatedPlugin.__init__r c C r: r; )�isalphar r" r" r# r$ t r> z!TooManyAccentuatedPlugin.eligiblec C s, | j d7 _ t|�r| jd7 _d S d S �Nr )r7 r
rI r r" r" r# r& w s �z TooManyAccentuatedPlugin.feedc C rG rA rH r' r" r" r# r( } rJ z TooManyAccentuatedPlugin.resetc C s4 | j dks
| j dk r dS | j| j }|dkr|S dS )Nr � rC gffffff�?rH )r! Zratio_of_accentuationr" r" r# r) � s z TooManyAccentuatedPlugin.ratior* rE r" r" r" r# rF o s
rF c @ r3 )�UnprintablePluginr Nc C rG rA )�_unprintable_countr7 r' r" r" r# r9 � rJ zUnprintablePlugin.__init__r c C � dS �NTr" r r" r" r# r$ � � zUnprintablePlugin.eligiblec C s( t |�r | jd7 _| jd7 _d S rL )r rO r7 r r" r" r# r& � s zUnprintablePlugin.feedc C s
d| _ d S rA )rO r' r" r" r# r( � s
zUnprintablePlugin.resetc C � | j dkrdS | jd | j S )Nr rC rM )r7 rO r' r" r" r# r) � �
zUnprintablePlugin.ratior* rE r" r" r" r# rN � s
rN c @ r3 )� SuspiciousDuplicateAccentPluginr Nc C � d| _ d| _d | _d S rA ��_successive_countr7 �_last_latin_characterr' r" r" r# r9 � s
z(SuspiciousDuplicateAccentPlugin.__init__r c C s |� � ot|�S r; )rK r r r" r" r# r$ � s z(SuspiciousDuplicateAccentPlugin.eligiblec C st | j d7 _ | jd ur5t|�r5t| j�r5|�� r%| j�� r%| jd7 _t|�t| j�kr5| jd7 _|| _d S rL )r7 rY r
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z$SuspiciousDuplicateAccentPlugin.feedc C rV rA rW r' r" r" r# r( � rB z%SuspiciousDuplicateAccentPlugin.resetc C rS )Nr rC r? )r7 rX r' r" r" r# r) � rT z%SuspiciousDuplicateAccentPlugin.ratior* rE r" r" r" r# rU � s
rU c @ r3 )�SuspiciousRanger Nc C rV rA )�"_suspicious_successive_range_countr7 �_last_printable_seenr' r" r" r# r9 � rB zSuspiciousRange.__init__r c C r: r; r< r r" r" r# r$ � r> zSuspiciousRange.eligiblec C sx | j d7 _ |�� st|�s|tv rd | _d S | jd u r"|| _d S t| j�}t|�}t||�r7| jd7 _|| _d S rL )r7 �isspacer r r] r � is_suspiciously_successive_ranger\ )r! r �unicode_range_a�unicode_range_br" r" r# r& � s ��
zSuspiciousRange.feedc C rV rA )r7 r\ r] r' r" r" r# r( � rB zSuspiciousRange.resetc C s. | j dkrdS | jd | j }|dk rdS |S )Nr rC r? g�������?)r7 r\ )r! Z ratio_of_suspicious_range_usager" r" r# r) � s
�zSuspiciousRange.ratior* rE r" r" r" r# r[ � s
r[ c @ r3 )�SuperWeirdWordPluginr Nc 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_watchr7 �_bad_character_count�_buffer�_buffer_accent_countr' r" r" r# r9 � s
z SuperWeirdWordPlugin.__init__r c C rP rQ r" r r" r" r# r$ rR z SuperWeirdWordPlugin.eligiblec C s |� � rH| j|7 _t|�r| jd7 _| jdu rFt|�du s%t|�rFt|�du rFt|�du rFt|�du rFt |�du rFt
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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'.
r Nc C rG rA ��_wrong_stop_count�_cjk_character_countr' r" r" r# r9 e rJ z CjkInvalidStopPlugin.__init__r c C rP rQ r" r r" r" r# r$ i rR z CjkInvalidStopPlugin.eligiblec C s8 |dv r
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r� r r" r" r# r& l s �zCjkInvalidStopPlugin.feedc C rG rA r r' r" r" r# r( s rJ zCjkInvalidStopPlugin.resetc C s | j dk rdS | j| j S )N� rC )r� r� r' r" r" r# r) w s
zCjkInvalidStopPlugin.ratior* )
r+ r, r- r. r9 r/ r0 r$ r& r( r1 r2 r) r" r" r" r# r~ _ s
r~ c @ r3 )�ArchaicUpperLowerPluginr Nc 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_finalr7 �_last_alpha_seen�_current_ascii_onlyr' r" r" r# r9 s
z ArchaicUpperLowerPlugin.__init__r c C rP rQ r" r r" r" r# r$ � rR z ArchaicUpperLowerPlugin.eligiblec C s$ |� � ot|�}|du }|rC| jdkrC| jdkr+|�� du r+| jdu r+| j| j7 _d| _d| _d | _d| _| j d7 _ d| _d S | jdu rQt
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z ArchaicUpperLowerPlugin.resetc C s | j dkrdS | j| j S )Nr rC )r7 r� r' r" r" r# r) � s
z ArchaicUpperLowerPlugin.ratior* rE r" r" r" r# r� ~ s
* r� � )�maxsizer` ra r c C sb | du s|du r
dS | |krdS d| v rd|v rdS d| v s"d|v r$dS d| v s,d|v r6d| v s4d|v r6dS | � d�|� d�}}|D ]}|tv rJqC||v rQ dS qC| dv |dv }}|s_|rid | v sgd |v ridS |ro|rodS d
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Determine if two Unicode range seen next to each other can be considered as suspicious.
NTFZLatinZ EmoticonsZ Combining� )�Hiragana�KatakanaZCJKZHangulz Basic Latin)r� r� Z PunctuationZForms)�splitr )r` ra Zkeywords_range_aZkeywords_range_b�elZrange_a_jp_charsZrange_b_jp_charsr" r" r# r_ � sZ �����r_ i 皙�����?F�decoded_sequence�maximum_threshold�debugc C sR dd� t �� D �}t| �d }d}|dk rd}n |dkr d}nd }t| d
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Compute a mess ratio given a decoded bytes sequence. The maximum threshold does stop the computation earlier.
c S s g | ]}|� �qS r" r" )ro Zmd_classr" r" r# rr s �z mess_ratio.<locals>.<listcomp>r rC i � r� r� � �
r c s s � | ]}|j V qd S r; )r) )ro �dtr" r" r# � <genexpr>0 s � z mess_ratio.<locals>.<genexpr>Zcharset_normalizerzIMess-detector extended-analysis start. intermediary_mean_mess_ratio_calc=z mean_mess_ratio=z maximum_threshold=r� zStarting with: Nz
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