3
d                 @   s   d dl Z d dlZd dlmZ yd dlZW n ek
r<   Y nX dadddZdd Zdd Z	d	d
 Z
dd Zdd Zedkre  e  dS )    N)find_binaryc             C   s   t d| dgdgddad S )NZtadmZTADMzhttp://tadm.sf.net)Zenv_varsZbinary_namesurl)r   	_tadm_bin)bin r   2/tmp/pip-build-v9q4h5k9/nltk/nltk/classify/tadm.pyconfig_tadm   s    r   c       
      C   s   |j  }xt| D ]l\}}dt| }|j| xL|D ]D}|j||}dt||kt|djdd |D f }	|j|	 q2W qW dS )aT  
    Generate an input file for ``tadm`` based on the given corpus of
    classified tokens.

    :type train_toks: list(tuple(dict, str))
    :param train_toks: Training data, represented as a list of
        pairs, the first member of which is a feature dictionary,
        and the second of which is a classification label.
    :type encoding: TadmEventMaxentFeatureEncoding
    :param encoding: A feature encoding, used to convert featuresets
        into feature vectors.
    :type stream: stream
    :param stream: The stream to which the ``tadm`` input file should be
        written.
    z%d
z	%d %d %s
 c             s   s   | ]}d | V  qdS )z%d %dNr   ).0ur   r   r   	<genexpr>9   s    z"write_tadm_file.<locals>.<genexpr>N)labelslenwriteencodeintjoin)
Z
train_toksencodingstreamr   Z
featuresetlabelZlength_lineZknown_labelvliner   r   r   write_tadm_file   s    


r   c             C   s0   g }x| D ]}|j t|j  q
W tj|dS )z
    Given the stdout output generated by ``tadm`` when training a
    model, return a ``numpy`` array containing the corresponding weight
    vector.
    d)appendfloatstripnumpyarray)Z	paramfileweightsr   r   r   r   parse_tadm_weights>   s    
r    c             C   sj   t | trtdtdkr t  tg|  }tj|tjd}|j	 \}}|j
dkrft  t| tddS )z<
    Call the ``tadm`` binary with the given arguments.
    z args should be a list of stringsN)stdoutr   ztadm command failed!)
isinstancestr	TypeErrorr   r   
subprocessPopensysr!   communicate
returncodeprintOSError)argscmdpr!   stderrr   r   r   	call_tadmJ   s    


r0   c              C   s&   ddl m}  ddlm} || j}d S )Nr   )TadmMaxentClassifier)
names_demo)nltk.classify.maxentr1   Znltk.classify.utilr2   train)r1   r2   
classifierr   r   r   r2   _   s    r2   c              C   s   dd l } ddlm} dddddfdddddfddddd	dfg}|j|}t||| j t  x*t|j D ]}td
|j	||f  qpW t  d S )Nr   )TadmEventMaxentFeatureEncoding   )f0f1f3A)r8   f2f4B   )r8   r<   r:   r=   z	%s --> %d)
r'   r3   r6   r4   r   r!   r*   rangelengthZdescribe)r'   r6   tokensr   ir   r   r   encoding_demof   s    
rD   __main__)N)r%   r'   Znltk.internalsr   r   ImportErrorr   r   r   r    r0   r2   rD   __name__r   r   r   r   <module>   s    
"