U
    eO                     @   s0   d Z ddlT dd Zdd Zdd Zd	d
 ZdS )z0
Helper functions for CCG semantics computation
    )*c                 C   sj   | }d }t |tr|}|j}qtd}|| kr>t|d}q&tt||}|d k	r\||_n|} t|| S )NF)pattern)
isinstanceLambdaExpressiontermVariablefreeZunique_variableApplicationExpressionZFunctionVariableExpression)Z	semanticscoreparentvar r   O/var/www/html/assets/scripts/venv/lib/python3.8/site-packages/nltk/ccg/logic.pycompute_type_raised_semantics   s    
r   c                 C   s   t | | S )N)r
   simplifyfunctionargumentr   r   r   compute_function_semantics"   s    r   c                 C   s6   t |tstdt| d t|jt| |j S )N`` must be a lambda expression)r   r   AssertionErrorstrvariabler
   r   r   r   r   r   r   compute_composition_semantics&   s     r   c                 C   sx   t | trt | jts*tdt|  d t |tsHtdt| d t|t| j }t| j| }t| j|S )Nr   z.` must be a lambda expression with 2 argumentsr   )	r   r   r   r   r   r
   ZVariableExpressionr   r   )r   r   Znew_argumentZnew_termr   r   r   compute_substitution_semantics/   s      r   N)__doc__Znltk.sem.logicr   r   r   r   r   r   r   r   <module>   s
   	