Add debugging data to iPhoto plist parsing

Fixes #233.

core_pe/iphoto_plist.py

@@ -0,0 +1,25 @@
+# Created By: Virgil Dupras
+# Created On: 2014-03-15
+# Copyright 2014 Hardcoded Software (http://www.hardcoded.net)
+# 
+# This software is licensed under the "BSD" License as described in the "LICENSE" file, 
+# which should be included with this package. The terms are also available at 
+# http://www.hardcoded.net/licenses/bsd_license
+
+import plistlib
+
+class IPhotoPlistParser(plistlib.PlistParser):
+    """A parser for iPhoto plists.
+
+    iPhoto plists tend to be malformed, so we have to subclass the built-in parser to be a bit more
+    lenient.
+    """
+    def __init__(self):
+        plistlib.PlistParser.__init__(self)
+        # For debugging purposes, we remember the last bit of data to be analyzed so that we can
+        # log it in case of an exception
+        self.lastdata = ''
+
+    def getData(self):
+        self.lastdata = plistlib.PlistParser.getData(self)
+        return self.lastdata