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Editing: pgen.cpython-36.pyc
3 \�5 � @ sd d dl mZmZmZ G dd� dej�ZG dd� de�ZG dd� de�ZG dd � d e�Z dd d �Z d S )� )�grammar�token�tokenizec @ s e Zd ZdS )� PgenGrammarN)�__name__� __module__� __qualname__� r r �*/usr/lib64/python3.6/lib2to3/pgen2/pgen.pyr s r c @ s� e Zd Zd&dd�Zdd� Zdd� Zdd � Zd d � Zd d � Zdd� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zd d � Zd d � Zd'd d!�Zd"d#� Zd$d%� ZdS )(�ParserGeneratorNc C sl d }|d krt |�}|j}|| _|| _tj|j�| _| j� | j � \| _ | _ |d k rZ|� i | _ | j � d S )N)�open�close�filename�streamr �generate_tokens�readline� generator�gettoken�parse�dfas� startsymbol�first� addfirstsets)�selfr r Z close_streamr r r �__init__ s zParserGenerator.__init__c C s* t � }t| jj� �}|j� |j| j� |jd| j� x.|D ]&}dt|j � }||j |< ||j |< q<W x�|D ]�}| j| }g }xl|D ]d}g }x6t |j j � �D ]$\} } |j| j|| �|j| �f� q�W |jr�|jd|j|�f� |j|� q�W |jj|� || j||�f|j|j | < qlW |j | j |_|S )N� � )r �listr �keys�sort�remover �insert�len� symbol2numberZ number2symbol�sorted�arcs�items�append� make_label�index�isfinal�states� make_first�start) r �c�names�name�i�dfar+ �stater% �label�nextr r r � make_grammar s. z ParserGenerator.make_grammarc C s8 | j | }i }x$t|�D ]}| j||�}d||< qW |S )Nr )r r$ r( )r r. r0 Zrawfirstr r4 �ilabelr r r r, 4 s zParserGenerator.make_firstc C sb t |j�}|d j� r�||jkrZ||jkr4|j| S |jj|j| d f� ||j|< |S nbtt|d �}t|t �sxt |��|tj ks�t |��||j kr�|j | S |jj|d f� ||j |< |S n�|d dks�t |��t |�}|d j� �r ||jk� r�|j| S |jjtj|f� ||j|< |S n>tj| }||j k�r@|j | S |jj|d f� ||j |< |S d S )Nr �"�')r8 r9 )r" Zlabels�isalphar# Z symbol2labelr' �getattrr � isinstance�int�AssertionError�tok_name�tokens�eval�keywords�NAMEr Zopmap)r r. r4 r7 Zitoken�valuer r r r( = s< zParserGenerator.make_labelc C s< t | jj� �}|j� x |D ]}|| jkr | j|� q W d S )N)r r r r r � calcfirst)r r/ r0 r r r r k s z ParserGenerator.addfirstsetsc C s | j | }d | j|< |d }i }i }x�|jj� D ]x\}}|| j kr�|| jkrl| j| }|d kr�td| ��n| j|� | j| }|j|� |||< q0d||< |di||< q0W i } xJ|j� D ]>\}} x4| D ],} | | kr�td|| || | f ��|| | < q�W q�W || j|< d S )Nr zrecursion for rule %rr zArule %s is ambiguous; 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