| Server IP : 13.213.54.232 / Your IP : 216.73.216.30 Web Server : Apache/2.4.52 (Ubuntu) System : Linux ip-172-31-17-110 6.8.0-1029-aws #31~22.04.1-Ubuntu SMP Thu Apr 24 21:16:18 UTC 2025 x86_64 User : www-data ( 33) PHP Version : 7.1.33-67+ubuntu22.04.1+deb.sury.org+1 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /snap/core22/current/lib/python3.11/lib2to3/ |
Upload File : |
# Copyright 2006 Google, Inc. All Rights Reserved.
# Licensed to PSF under a Contributor Agreement.
"""Export the Python grammar and symbols."""
# Python imports
import os
# Local imports
from .pgen2 import token
from .pgen2 import driver
from . import pytree
# The grammar file
_GRAMMAR_FILE = os.path.join(os.path.dirname(__file__), "Grammar.txt")
_PATTERN_GRAMMAR_FILE = os.path.join(os.path.dirname(__file__),
"PatternGrammar.txt")
class Symbols(object):
def __init__(self, grammar):
"""Initializer.
Creates an attribute for each grammar symbol (nonterminal),
whose value is the symbol's type (an int >= 256).
"""
for name, symbol in grammar.symbol2number.items():
setattr(self, name, symbol)
python_grammar = driver.load_packaged_grammar("lib2to3", _GRAMMAR_FILE)
python_symbols = Symbols(python_grammar)
python_grammar_no_print_statement = python_grammar.copy()
del python_grammar_no_print_statement.keywords["print"]
python_grammar_no_print_and_exec_statement = python_grammar_no_print_statement.copy()
del python_grammar_no_print_and_exec_statement.keywords["exec"]
pattern_grammar = driver.load_packaged_grammar("lib2to3", _PATTERN_GRAMMAR_FILE)
pattern_symbols = Symbols(pattern_grammar)