mirror of
https://github.com/python/cpython.git
synced 2024-11-24 18:34:43 +08:00
b0871cac11
svn+ssh://pythondev@svn.python.org/python/branches/py3k ................ r85510 | benjamin.peterson | 2010-10-14 18:00:04 -0500 (Thu, 14 Oct 2010) | 61 lines Merged revisions 83852-83853,83857,84042,84216,84274-84276,84375,85388,85478,85506-85508 via svnmerge from svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3 ........ r83852 | benjamin.peterson | 2010-08-08 15:45:44 -0500 (Sun, 08 Aug 2010) | 1 line wrap with parens ........ r83853 | benjamin.peterson | 2010-08-08 15:46:31 -0500 (Sun, 08 Aug 2010) | 1 line use parens ........ r83857 | benjamin.peterson | 2010-08-08 15:59:49 -0500 (Sun, 08 Aug 2010) | 1 line things which use touch_import should be pre order ........ r84042 | george.boutsioukis | 2010-08-14 16:10:19 -0500 (Sat, 14 Aug 2010) | 2 lines This revision incorporates into the 2to3 tool the new, faster, tree matching algorithm developed during a GSOC project. The algorithm resides in the two added modules, btm_matcher and btm_utils. New code has been added to drive the new matching process in refactor.py and a few minor changes were made in other modules. A BM_compatible flag(False by default) has been added in fixer_base and it is set to True in most of the current fixers. ........ r84216 | benjamin.peterson | 2010-08-19 16:44:05 -0500 (Thu, 19 Aug 2010) | 1 line allow star_expr in testlist_gexp ........ r84274 | benjamin.peterson | 2010-08-22 18:40:46 -0500 (Sun, 22 Aug 2010) | 1 line wrap long line ........ r84275 | benjamin.peterson | 2010-08-22 18:42:22 -0500 (Sun, 22 Aug 2010) | 1 line cleanup ........ r84276 | benjamin.peterson | 2010-08-22 18:51:01 -0500 (Sun, 22 Aug 2010) | 1 line when there's a None value and a traceback, don't call type with it #9661 ........ r84375 | george.boutsioukis | 2010-08-31 08:38:53 -0500 (Tue, 31 Aug 2010) | 3 lines Idiomatic code changes & stylistic issues fixed in the BottomMatcher module. Thanks to Benjamin Peterson for taking the time to review the code. ........ r85388 | benjamin.peterson | 2010-10-12 17:27:44 -0500 (Tue, 12 Oct 2010) | 1 line fix urllib fixer with multiple as imports on a line #10069 ........ r85478 | benjamin.peterson | 2010-10-14 08:09:56 -0500 (Thu, 14 Oct 2010) | 1 line stop abusing docstrings ........ r85506 | benjamin.peterson | 2010-10-14 17:45:19 -0500 (Thu, 14 Oct 2010) | 1 line kill sibling import ........ r85507 | benjamin.peterson | 2010-10-14 17:54:15 -0500 (Thu, 14 Oct 2010) | 1 line remove trailing whitespace ........ r85508 | benjamin.peterson | 2010-10-14 17:55:28 -0500 (Thu, 14 Oct 2010) | 1 line typo ........ ................
41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
# 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_grammar(_GRAMMAR_FILE)
|
|
|
|
python_symbols = Symbols(python_grammar)
|
|
|
|
python_grammar_no_print_statement = python_grammar.copy()
|
|
del python_grammar_no_print_statement.keywords["print"]
|
|
|
|
pattern_grammar = driver.load_grammar(_PATTERN_GRAMMAR_FILE)
|
|
pattern_symbols = Symbols(pattern_grammar)
|