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

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  r83852 | benjamin.peterson | 2010-08-08 15:45:44 -0500 (Sun, 08 Aug 2010) | 1 line

  wrap with parens
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  r83853 | benjamin.peterson | 2010-08-08 15:46:31 -0500 (Sun, 08 Aug 2010) | 1 line

  use parens
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  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
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  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.
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  r84216 | benjamin.peterson | 2010-08-19 16:44:05 -0500 (Thu, 19 Aug 2010) | 1 line

  allow star_expr in testlist_gexp
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  r84274 | benjamin.peterson | 2010-08-22 18:40:46 -0500 (Sun, 22 Aug 2010) | 1 line

  wrap long line
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  r84275 | benjamin.peterson | 2010-08-22 18:42:22 -0500 (Sun, 22 Aug 2010) | 1 line

  cleanup
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  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
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  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.
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  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
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  r85478 | benjamin.peterson | 2010-10-14 08:09:56 -0500 (Thu, 14 Oct 2010) | 1 line

  stop abusing docstrings
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  r85506 | benjamin.peterson | 2010-10-14 17:45:19 -0500 (Thu, 14 Oct 2010) | 1 line

  kill sibling import
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  r85507 | benjamin.peterson | 2010-10-14 17:54:15 -0500 (Thu, 14 Oct 2010) | 1 line

  remove trailing whitespace
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  r85508 | benjamin.peterson | 2010-10-14 17:55:28 -0500 (Thu, 14 Oct 2010) | 1 line

  typo
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1 files changed, 5 insertions, 2 deletions

diff --git a/Lib/lib2to3/patcomp.py b/Lib/lib2to3/patcomp.py
index 3831622..bb538d5 100644
--- a/Lib/lib2to3/patcomp.py
+++ b/Lib/lib2to3/patcomp.py
@@ -52,14 +52,17 @@ class PatternCompiler(object):
         self.pysyms = pygram.python_symbols
         self.driver = driver.Driver(self.grammar, convert=pattern_convert)
 
-    def compile_pattern(self, input, debug=False):
+    def compile_pattern(self, input, debug=False, with_tree=False):
         """Compiles a pattern string to a nested pytree.*Pattern object."""
         tokens = tokenize_wrapper(input)
         try:
             root = self.driver.parse_tokens(tokens, debug=debug)
         except parse.ParseError as e:
             raise PatternSyntaxError(str(e))
-        return self.compile_node(root)
+        if with_tree:
+            return self.compile_node(root), root
+        else:
+            return self.compile_node(root)
 
     def compile_node(self, node):
         """Compiles a node, recursively.