| Server IP : 195.114.193.97 / Your IP : 216.73.216.125 Web Server : LiteSpeed System : Linux host 5.15.0-126-generic #136-Ubuntu SMP Wed Nov 6 10:38:22 UTC 2024 x86_64 User : sembi4241 ( 1126) PHP Version : 8.1.33 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /lib/python3.10/lib2to3/pgen2/__pycache__/ |
Upload File : |
o
��bc! � @ s� d Z dZddgZddlZddlZddlZddlZddlZddlm Z m
Z
m Z m Z m
Z
G dd� de�Zd d
� Z ddd�Zdd� Zdd� Zdd� ZedkrXe�ee� �� dS 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 u r t�� }|| _|| _d S )N)r �logging� getLogger�logger�convert)�selfr r
r � r �+/usr/lib/python3.10/lib2to3/pgen2/driver.py�__init__ s
zDriver.__init__Fc C s� t �| j| j�}|�� d}d}d } } } } }
d} |D ]�} | \}}}} }
|||fkr]||f|ks;J ||f|f��|\}
}||
k rO| d|
| 7 } |
}d}||k r]| |
||� 7 } |}|tjtjfv ry| |7 } | \}}|�d�rx|d7 }d}q |t j
kr�tj | }|r�| j �
dt j| || � |�||| |f�r�|r�| j �
d� |jS d} | \}}|�d�r�|d7 }d}q t �d||| |f��) z4Parse a series of tokens and return the syntax tree.r r N� �
z%s %r (prefix=%r)zStop.zincomplete input)r �Parserr r
�setupr �COMMENT�NL�endswithr �OP�opmapr �debug�tok_name�addtoken�
ParseError�rootnode)r �tokensr �p�lineno�column�type�value�start�end� line_text�prefix� quintuple�s_lineno�s_columnr r r � parse_tokens& sZ
�
�
�
�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. )r2 )r r1 r r r r � parse_stream[ s zDriver.parse_streamc C s@ t j|d|d��}| �||�W d � S 1 sw Y dS )z(Parse a file and return the syntax tree.�r)�encodingN)�io�openr3 )r �filenamer5 r r1 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/ r6 �StringIOr0 r- )r �textr r r r r � parse_stringd s zDriver.parse_string)NN)F)NF) �__name__�
__module__� __qualname__r r- r2 r3 r9 r< r r r r r s
0
c C s: t j�| �\}}|dkrd}|| 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 rL � Grammar.txtTFc C sd |du rt �� }|du rt| �n|}|st|| �s'|�d| � t�| �} |S t �
� }|� |� |S )z'Load the grammar (maybe from a pickle).Nz!Generating grammar tables from %s) r
r rL �_newer�infor �generate_grammar�dump�OSErrorr �Grammar�load)rI �gp�save�forcer �g�er r r r q s
�
c C s8 t j�| �sdS t j�|�sdS t j�| �t j�|�kS )z0Inquire whether file a was written since file b.FT)rA rB �exists�getmtime)�a�br r r rN � s
rN c C sF t j�|�r
t|�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.
) rA rB �isfiler rL �basename�pkgutil�get_datar rS �loads)�package�grammar_source� pickled_name�datarX r r r �load_packaged_grammar� s
rg c G sB | s t jdd� } tjtjt jdd� | D ] }t|ddd� qdS )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)�levelr1 �formatT)rV rW )rG �argvr
� basicConfig�INFO�stdoutr )�argsrI r r r �main� s �ro �__main__)rM NTFN)�__doc__�
__author__�__all__r6 rA r
r` rG r r r r r r �objectr rL r rN rg ro r= �exit�intr r r r �<module> s( M
�
�