| Server IP : 66.29.153.156 / Your IP : 216.73.217.154 Web Server : LiteSpeed System : Linux premium322.web-hosting.com 4.18.0-553.50.1.lve.el8.x86_64 #1 SMP Thu Apr 17 19:10:24 UTC 2025 x86_64 User : lastyfjz ( 1521) PHP Version : 8.1.34 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : OFF | Pkexec : OFF Directory : /opt/alt/python37/lib64/python3.7/lib2to3/pgen2/__pycache__/ |
Upload File : |
B
� f_ � @ s� d Z dZddgZddlZddlZddlZddlZddlZddlZddl m
Z
m Z m Z m
Z
mZ G dd� de�Zd d
� Zddd�Zdd� Zdd� Zdd� Zedkr�e�ee� �� dS )zZParser driver.
This provides a high-level interface to parse a file into a syntax tree.
z#Guido van Rossum <guido@python.org>�Driver� load_grammar� N� )�grammar�parse�token�tokenize�pgenc @ sH e Zd Zddd�Zddd�Zddd�Zdd d
�Zdd d �Zdd
d�ZdS )r Nc C s& || _ |d krt�� }|| _|| _d S )N)r �logging� getLogger�logger�convert)�selfr r
r � r �9/opt/alt/python37/lib64/python3.7/lib2to3/pgen2/driver.py�__init__ s
zDriver.__init__Fc C s� t �| j| j�}|�� d}d}d } } } } }
d} �xR|D �]4} | \}}}} }
|||fkr�||f|ks|t||f|f��|\}
}||
k r�| d|
| 7 } |
}d}||k r�| |
||� 7 } |}|tjtjfkr�| |7 } | \}}|� d�r@|d7 }d}q@|t
j k�rtj | }|�r,| j
�dt
j| || � |�||| |f��rT|�rR| j
�d� P d} | \}}|� d�r@|d7 }d}q@W t �d||| |f��|jS ) z4Parse a series of tokens and return the syntax tree.r r N� �
z%s %r (prefix=%r)zStop.zincomplete input)r ZParserr r
Zsetup�AssertionErrorr �COMMENT�NL�endswithr �OPZopmapr �debug�tok_nameZaddtokenZ
ParseErrorZrootnode)r �tokensr �p�lineno�column�type�value�start�endZ line_text�prefixZ quintupleZs_linenoZs_columnr r r � parse_tokens' sT
zDriver.parse_tokensc C s t �|j�}| �||�S )z*Parse a stream and return the syntax tree.)r �generate_tokens�readliner$ )r �streamr r r r r �parse_stream_rawW s zDriver.parse_stream_rawc C s | � ||�S )z*Parse a stream and return the syntax tree.)r( )r r' r r r r � parse_stream\ s zDriver.parse_streamc C s( t j|d|d��}| �||�S Q R X dS )z(Parse a file and return the syntax tree.�r)�encodingN)�io�openr) )r �filenamer+ r r' r r r �
parse_file` s zDriver.parse_filec C s t �t�|�j�}| �||�S )z*Parse a string and return the syntax tree.)r r% r, �StringIOr& r$ )r �textr r r r r � parse_stringe s zDriver.parse_string)NN)F)F)F)NF)F) �__name__�
__module__� __qualname__r r$ r( r) r/ r2 r r r r r s
0
c C s: t j�| �\}}|dkr d}|| d�tttj�� d S )Nz.txtr �.z.pickle)�os�path�splitext�join�map�str�sys� version_info)�gt�head�tailr r r �_generate_pickle_namek s rB � Grammar.txtTFc
C s� |dkrt �� }|dkr t| �n|}|s2t|| �s�|�d| � t�| �}|r�|�d|� y|�|� W q� tk
r� } z|�d|� W dd}~X Y q�X nt �
� }|� |� |S )z'Load the grammar (maybe from a pickle).Nz!Generating grammar tables from %sz Writing grammar tables to %szWriting failed: %s) r
r rB �_newer�infor Zgenerate_grammar�dump�OSErrorr �Grammar�load)r? Zgp�save�forcer �g�er r r r r s
c C s8 t j�| �sdS t j�|�s dS t j�| �t j�|�kS )z0Inquire whether file a was written since file b.FT)r7 r8 �exists�getmtime)�a�br r r rD � s
rD c C sF t j�|�rt|�S tt j�|��}t�| |�}t� � }|�
|� |S )a� Normally, loads a pickled grammar by doing
pkgutil.get_data(package, pickled_grammar)
where *pickled_grammar* is computed from *grammar_source* by adding the
Python version and using a ``.pickle`` extension.
However, if *grammar_source* is an extant file, load_grammar(grammar_source)
is called instead. This facilitates using a packaged grammar file when needed
but preserves load_grammar's automatic regeneration behavior when possible.
) r7 r8 �isfiler rB �basename�pkgutil�get_datar rH �loads)�packageZgrammar_sourceZ pickled_name�datarL r r r �load_packaged_grammar� s
rY c G sF | st jdd� } tjtjt jdd� x| D ]}t|ddd� q,W dS )z�Main program, when run as a script: produce grammar pickle files.
Calls load_grammar for each argument, a path to a grammar text file.
r Nz %(message)s)�levelr' �formatT)rJ rK )r= �argvr
Z basicConfig�INFO�stdoutr )�argsr? r r r �main� s
r` �__main__)rC NTFN)�__doc__�
__author__�__all__�codecsr, r7 r
rT r= r r r r r r �objectr rB r rD rY r` r3 �exit�intr r r r �<module> s$ M