Moved dynamic scoping stuff out of fix.py and into its own module.

src/__init__.py

@@ -29,6 +29,7 @@
 
 import sys
 import os.path
+import dynamicScope
 
 installDir = os.path.dirname(sys.modules[__name__].__file__)
 

src/dynamicScope.py

@@ -0,0 +1,50 @@
+###
+# Copyright (c) 2004-2005, Jeremiah Fincher
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#   * Redistributions of source code must retain the above copyright notice,
+#     this list of conditions, and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright notice,
+#     this list of conditions, and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#   * Neither the name of the author of this software nor the name of
+#     contributors to this software may be used to endorse or promote products
+#     derived from this software without specific prior written consent.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+###
+
+class DynamicScope(object):
+    def _getLocals(self, name):
+        f = sys._getframe().f_back.f_back # _getLocals <- __[gs]etattr__ <- ...
+        while f:
+            if name in f.f_locals:
+                return f.f_locals
+            f = f.f_back
+        raise NameError, name
+    
+    def __getattr__(self, name):
+        try:
+            return self._getLocals(name)[name]
+        except (NameError, KeyError):
+            return None
+            
+    def __setattr__(self, name, value):
+        self._getLocals(name)[name] = value
+
+__builtins__['dynamic'] = DynamicScope()
+
+# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: