Merged revisions 1767-1783 via svnmerge from

http://scons.tigris.org/svn/scons/branches/core

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  r1771 | stevenknight | 2007-01-11 10:42:17 -0600 (Thu, 11 Jan 2007) | 1 line

  0.96.D544 - Fix maximum recursion depth exceeded when writing .sconsign files after using Nodes on two different Windows drive letters.
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  r1772 | stevenknight | 2007-01-11 12:15:07 -0600 (Thu, 11 Jan 2007) | 1 line

  0.96.D545 - Restore caching of file contents in Node.FS.File.get_contents().
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  r1773 | stevenknight | 2007-01-12 10:22:40 -0600 (Fri, 12 Jan 2007) | 1 line

  0.96.D405 - Add MergeFlags() and AddFlags() methods. (Greg Noel) Support recognizing compiler flags that begin with +. (Kent Boortz)
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  r1774 | stevenknight | 2007-01-16 15:58:39 -0600 (Tue, 16 Jan 2007) | 2 lines

  Back out previous modification; the wrong change was distributed.
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  r1775 | stevenknight | 2007-01-16 16:08:26 -0600 (Tue, 16 Jan 2007) | 1 line

  0.96.D546 - Back out previous change that cached get_contents().
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  r1776 | stevenknight | 2007-01-17 14:30:59 -0600 (Wed, 17 Jan 2007) | 1 line

  0.96.D547 - Document the use of ${} to evaluate arbitrary Python code. (Gary Oberbrunner)
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  r1777 | stevenknight | 2007-01-17 15:43:18 -0600 (Wed, 17 Jan 2007) | 1 line

  0.96.D548 - Better man page Scanner example (Matt Doar); add FindPathDirs() to the publicly-available functions, and document it.
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  r1778 | stevenknight | 2007-01-17 17:01:03 -0600 (Wed, 17 Jan 2007) | 1 line

  0.96.D549 - Return MSVC default paths for versions >= 8.0. (Anonymous)
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  r1779 | stevenknight | 2007-01-18 08:37:58 -0600 (Thu, 18 Jan 2007) | 1 line

  0.96.D550 - Windows fix for the rel_path() unit test.
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  r1780 | stevenknight | 2007-01-18 14:01:32 -0600 (Thu, 18 Jan 2007) | 1 line

  0.96.D551 - Fix use of __builtins__ in Subst.py.
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  r1781 | stevenknight | 2007-01-18 16:00:27 -0600 (Thu, 18 Jan 2007) | 1 line

  0.96.D552 - Collect compatibility code in its own SCons.compat subpackage.
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  r1782 | stevenknight | 2007-01-18 16:22:52 -0600 (Thu, 18 Jan 2007) | 1 line

  0.96.D553 - Add the vanilla Python 2.5 subprocess.py module (currently unused) as a baseline for our backwards-compatibility changes to that module.
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  r1783 | stevenknight | 2007-01-18 17:09:39 -0600 (Thu, 18 Jan 2007) | 1 line

  0.96.D554 - Change env.ParseConfig() to use the new subprocess module.
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1 files changed, 3 insertions, 63 deletions

diff --git a/src/engine/SCons/Util.py b/src/engine/SCons/Util.py
index d673d22..4bd050a 100644
--- a/src/engine/SCons/Util.py
+++ b/src/engine/SCons/Util.py
@@ -29,7 +29,8 @@ Various utility functions go here.
 
 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
 
-import __builtin__
+import SCons.compat
+
 import copy
 import os
 import os.path
@@ -41,6 +42,7 @@ import types
 
 from UserDict import UserDict
 from UserList import UserList
+from UserString import UserString
 
 # Don't "from types import ..." these because we need to get at the
 # types module later to look for UnicodeType.
@@ -50,68 +52,6 @@ ListType        = types.ListType
 StringType      = types.StringType
 TupleType       = types.TupleType
 
-try:
-    from UserString import UserString
-except ImportError:
-    # "Borrowed" from the Python 2.2 UserString module
-    # and modified slightly for use with SCons.
-    class UserString:
-        def __init__(self, seq):
-            if is_String(seq):
-                self.data = seq
-            elif isinstance(seq, UserString):
-                self.data = seq.data[:]
-            else:
-                self.data = str(seq)
-        def __str__(self): return str(self.data)
-        def __repr__(self): return repr(self.data)
-        def __int__(self): return int(self.data)
-        def __long__(self): return long(self.data)
-        def __float__(self): return float(self.data)
-        def __complex__(self): return complex(self.data)
-        def __hash__(self): return hash(self.data)
-
-        def __cmp__(self, string):
-            if isinstance(string, UserString):
-                return cmp(self.data, string.data)
-            else:
-                return cmp(self.data, string)
-        def __contains__(self, char):
-            return char in self.data
-
-        def __len__(self): return len(self.data)
-        def __getitem__(self, index): return self.__class__(self.data[index])
-        def __getslice__(self, start, end):
-            start = max(start, 0); end = max(end, 0)
-            return self.__class__(self.data[start:end])
-
-        def __add__(self, other):
-            if isinstance(other, UserString):
-                return self.__class__(self.data + other.data)
-            elif is_String(other):
-                return self.__class__(self.data + other)
-            else:
-                return self.__class__(self.data + str(other))
-        def __radd__(self, other):
-            if is_String(other):
-                return self.__class__(other + self.data)
-            else:
-                return self.__class__(str(other) + self.data)
-        def __mul__(self, n):
-            return self.__class__(self.data*n)
-        __rmul__ = __mul__
-
-#
-try:
-    __builtin__.zip
-except AttributeError:
-    def zip(*lists):
-        result = []
-        for i in xrange(len(lists[0])):
-            result.append(tuple(map(lambda l, i=i: l[i], lists)))
-        return result
-    __builtin__.zip = zip
-
 _altsep = os.altsep
 if _altsep is None and sys.platform == 'win32':
     # My ActivePython 2.0.1 doesn't set os.altsep!  What gives?