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Name	Size	Permission
__pycache__	[ DIR ]	drwxrwxrwx
fixes	[ DIR ]	drwxrwxrwx
pgen2	[ DIR ]	drwxrwxrwx
tests	[ DIR ]	drwxrwxrwx
Grammar.txt	8.68 KB	-rw-rw-rw-
PatternGrammar.txt	821 B	-rw-rw-rw-
__init__.py	171 B	-rw-rw-rw-
__main__.py	71 B	-rw-rw-rw-
btm_matcher.py	6.63 KB	-rw-rw-rw-
btm_utils.py	10.01 KB	-rw-rw-rw-
fixer_base.py	6.71 KB	-rw-rw-rw-
fixer_util.py	15.29 KB	-rw-rw-rw-
main.py	11.84 KB	-rw-rw-rw-
patcomp.py	7.09 KB	-rw-rw-rw-
pygram.py	1.32 KB	-rw-rw-rw-
pytree.py	28.15 KB	-rw-rw-rw-
refactor.py	27.58 KB	-rw-rw-rw-

Code Editor : pygram.py

# 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)

${this.title}

Code Editor : pygram.py