cpython/Lib/lib2to3/pygram.py
Benjamin Peterson 43caaa09ea Merged revisions 67427,67431,67433,67435,67630,67652,67656-67657,67674-67675,67678-67679,67705-67706,67716,67723,67765-67771,67774,67776,67778 via svnmerge from
svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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  r67427 | benjamin.peterson | 2008-11-28 16:07:41 -0600 (Fri, 28 Nov 2008) | 1 line

  fix spelling in comment
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  r67431 | benjamin.peterson | 2008-11-28 17:14:08 -0600 (Fri, 28 Nov 2008) | 1 line

  add a scripts directory; move things to it
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  r67433 | benjamin.peterson | 2008-11-28 17:18:48 -0600 (Fri, 28 Nov 2008) | 1 line

  run svneol.py
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  r67435 | benjamin.peterson | 2008-11-28 17:25:03 -0600 (Fri, 28 Nov 2008) | 1 line

  rename pre/post_order_mapping to pre/post_order_heads
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  r67630 | alexandre.vassalotti | 2008-12-06 21:51:56 -0600 (Sat, 06 Dec 2008) | 2 lines

  Fix typo in the urllib2.HTTPDigestAuthHandler fixer.
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  r67652 | armin.ronacher | 2008-12-07 15:39:43 -0600 (Sun, 07 Dec 2008) | 5 lines

  Added a fixer that cleans up a tuple argument to isinstance after the tokens
  in it were fixed.  This is mainly used to remove double occurrences of
  tokens as a leftover of the long -> int / unicode -> str conversion.
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  r67656 | armin.ronacher | 2008-12-07 16:54:16 -0600 (Sun, 07 Dec 2008) | 3 lines

  Added missing copyright fo 2to3 fix_isinstance.
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  r67657 | armin.ronacher | 2008-12-07 18:29:35 -0600 (Sun, 07 Dec 2008) | 3 lines

  2to3: intern and reduce fixes now add the imports if missing.  Because that is a common task the fixer_util module now has a function "touch_import" that adds imports if missing.
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  r67674 | benjamin.peterson | 2008-12-08 19:58:11 -0600 (Mon, 08 Dec 2008) | 1 line

  copy permission bits when making backup files #4602
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  r67675 | benjamin.peterson | 2008-12-08 19:59:11 -0600 (Mon, 08 Dec 2008) | 1 line

  add forgotten import
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  r67678 | benjamin.peterson | 2008-12-08 20:08:30 -0600 (Mon, 08 Dec 2008) | 1 line

  fix #4602 for real
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  r67679 | armin.ronacher | 2008-12-09 00:54:03 -0600 (Tue, 09 Dec 2008) | 3 lines

  Removed redudant code from the 2to3 long fixer.  This fixes #4590.
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  r67705 | benjamin.peterson | 2008-12-11 13:04:08 -0600 (Thu, 11 Dec 2008) | 1 line

  put trailers after a range call after the list()
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  r67706 | benjamin.peterson | 2008-12-11 13:17:57 -0600 (Thu, 11 Dec 2008) | 1 line

  add html related modules to the fix_imports mapping
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  r67716 | benjamin.peterson | 2008-12-11 22:16:47 -0600 (Thu, 11 Dec 2008) | 1 line

  consolidate tests
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  r67723 | benjamin.peterson | 2008-12-12 19:49:31 -0600 (Fri, 12 Dec 2008) | 1 line

  fix name
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  r67765 | benjamin.peterson | 2008-12-14 14:05:05 -0600 (Sun, 14 Dec 2008) | 1 line

  run fix_isinstance after fix_long and fix_unicode
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  r67766 | benjamin.peterson | 2008-12-14 14:13:05 -0600 (Sun, 14 Dec 2008) | 1 line

  use run_order instead of order
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  r67767 | benjamin.peterson | 2008-12-14 14:28:12 -0600 (Sun, 14 Dec 2008) | 1 line

  don't retain parenthesis if there is only one item left
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  r67768 | benjamin.peterson | 2008-12-14 14:32:30 -0600 (Sun, 14 Dec 2008) | 1 line

  use insert_child()
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  r67769 | benjamin.peterson | 2008-12-14 14:59:10 -0600 (Sun, 14 Dec 2008) | 1 line

  parenthesize doesn't belong in pygram or FixerBase
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  r67770 | alexandre.vassalotti | 2008-12-14 15:15:36 -0600 (Sun, 14 Dec 2008) | 2 lines

  Fix typo: html.paser -> html.parser.
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  r67771 | benjamin.peterson | 2008-12-14 15:22:09 -0600 (Sun, 14 Dec 2008) | 1 line

  altering .children needs to call changed()
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  r67774 | benjamin.peterson | 2008-12-14 15:55:38 -0600 (Sun, 14 Dec 2008) | 1 line

  employ an evil hack to fix multiple names in the same import statement
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  r67776 | benjamin.peterson | 2008-12-14 16:22:38 -0600 (Sun, 14 Dec 2008) | 1 line

  make a common mixin class for Test_imports and friends
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  r67778 | alexandre.vassalotti | 2008-12-14 17:48:20 -0600 (Sun, 14 Dec 2008) | 2 lines

  Make fix_imports refactor multiple imports as.
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2008-12-16 03:35:28 +00:00

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774 B
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")
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.iteritems():
setattr(self, name, symbol)
python_grammar = driver.load_grammar(_GRAMMAR_FILE)
python_symbols = Symbols(python_grammar)