Early stages of support for config inheritance. MIGHT NOT WORK! Sorry. -RCOH

2 files changed, 27 insertions, 0 deletions

diff --git a/util/Config.py b/util/Config.py
index 55da1b4..746350d 100644
--- a/util/Config.py
+++ b/util/Config.py
@@ -51,3 +51,29 @@ def generateArgDict(parentNode, recurse=False):
     if len(args.keys()) == 1 and recurse:
         return args[args.keys()[0]]
     return args
+def compositeXMLTrees(parentTree, overridingTree):
+    #type checking -- convert ElementTrees to their root elements
+    parentItems = parentTree.getchildren()
+    overrideItems = overridingTree.getchildren()
+    #first, lets figure out what tags we have in the override tree:
+    tagCollection = [el.tag for el in overrideItems] #we can speed this up with a dict if necessary
+    overrideRoot = overridingTree.getroot()
+    for item in parentItems:
+        if not item.tag in tagCollection: #no override 
+            overrideRoot.insert(-1, item) #insert the new item at the end
+        else:
+            #do we merge or replace?
+            intersectingElements = findElementsByTag(item.tag, overrideItems)
+            if len(intersectingItems) > 1:
+                print 'ABUSE!'
+            interEl = intersectingElements[0]
+            mode = 'Replace'
+            if Strings.OVERRIDE_BEHAVIOR in interEl.attrib:
+                mode = interEl.attrib[Strings.OVERRIDE_BEHAVIOR] 
+            if mode != 'Replace' and mode != 'Merge':
+                print 'Bad Mode.  Replacing'
+                mode = 'Replace'
+            if mode = 'Replace':
+                pass #we don't need to do anything
+            if mode = 'Merge': 
+                pass #TODO: code this
diff --git a/util/Strings.py b/util/Strings.py
index 1331db4..d58202d 100644
--- a/util/Strings.py
+++ b/util/Strings.py
@@ -1 +1,2 @@
 LOCATION = 'Location'
+OVERRIDE_BEHAVIOR = 'OverrideBehavior'