|
Server : LiteSpeed System : Linux server51.dnsbootclub.com 4.18.0-553.62.1.lve.el8.x86_64 #1 SMP Mon Jul 21 17:50:35 UTC 2025 x86_64 User : nandedex ( 1060) PHP Version : 8.1.33 Disable Function : NONE Directory : /lib64/python3.8/lib2to3/pgen2/__pycache__/ |
U
e5dQ � @ s� d Z dZddgZddlZddlZddlZddlZddlZddlm Z m
Z
m Z m Z m
Z
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 �,/usr/lib64/python3.8/lib2to3/pgen2/driver.py�__init__ s
zDriver.__init__Fc C s� t �| j| j�}|�� d}d}d } } } } }
d} |D �]8} | \}}}} }
|||fkr�||f|ksxt||f|f��|\}
}||
k r�| d|
| 7 } |
}d}||k r�| |
||� 7 } |}|tjtjfkr�| |7 } | \}}|� d�r<|d7 }d}q<|t
j k�r
tj | }|�r(| j
�dt
j| || � |�||| |f��rT|�rN| j
�d� �q�d} | \}}|� d�r<|d7 }d}q<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& s`
�
�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_rawV s zDriver.parse_stream_rawc C s | � ||�S r% )r) )r r( r r r r � parse_stream[ s zDriver.parse_streamc
C s4 t j|d|d��}| �||�W 5 Q R � 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_stringd s zDriver.parse_string)NN)F)F)F)NF)F) �__name__�
__module__� __qualname__r r$ r) r* r0 r3 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_namej s rC � Grammar.txtTFc
C s� |dkrt �� }|dkr t| �n|}|s2t|| �s�|�d| � t�| �}|r�|�d|� z|�|� W q� tk
r� } z|�d|� W 5 d}~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 rC �_newer�infor Zgenerate_grammar�dump�OSErrorr �Grammar�load)r@ Zgp�save�forcer �g�er r r r q 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)r8 r9 �exists�getmtime)�a�br r r rE � s
rE 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.
) r8 r9 �isfiler rC �basename�pkgutil�get_datar rI �loads)�packageZgrammar_sourceZ pickled_name�datarM r r r �load_packaged_grammar� s
rZ c G sB | st jdd� } tjtjt jdd� | D ]}t|ddd� q*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)rK rL )r> �argvr
Z basicConfig�INFO�stdoutr )�argsr@ r r r �main� s �ra �__main__)rD NTFN)�__doc__�
__author__�__all__r- r8 r
rU r> r r r r r r �objectr rC r rE rZ ra r4 �exit�intr r r r �<module> s( M �