Early stages of support for interbehavior interactions. Fixed a bug in the config eval and added

some new tests.

1 files changed, 8 insertions, 5 deletions

diff --git a/util/Config.py b/util/Config.py
index 4153313..25018a8 100644
--- a/util/Config.py
+++ b/util/Config.py
@@ -113,17 +113,20 @@ def pullArgsFromItem(parentNode):
     return args
 
 def attemptEval(val):
+    """Runs an eval if possible, or converts into a lambda expression if indicated.  Otherwise,
+    leaves as a string."""
     try:
         if '${' in val and '}$' in val: #TODO: this could be a little cleaner
-            dictVal = re.sub("'\$\{(.+)\}\$'", "b['\\1']", val) #replace all expressions like {blah} with a['blah']
-            dictVal = re.sub("\$\{(.+)\}\$", "a['\\1']", dictVal) #replace all expressions like {blah} with a['blah']
+            dictVal = re.sub("'\$\{(.+?)\}\$'", "b['\\1']", val) #replace expressions '${blah}$' with b['blah']
+            dictVal = re.sub("\$\{(.+?)\}\$", "a['\\1']", dictVal) #replace all expressions like {blah} with a['blah']
             if "'${" and "}$'" in val: #nested lambda madness
                 lambdaVal = eval('lambda a: lambda b: ' + dictVal)
             else:
                 lambdaVal = eval('lambda a:'+dictVal) #TODO: nested lambdas
-            return lambdaVal  #convert referential objects to lambda expressions which resolve
-            #dynamically
-        val = eval(val)
+            return lambdaVal  #convert referential objects to lambda expressions which can be
+            #resolved dynamically.
+        else:
+            val = eval(val)
     except (NameError, SyntaxError):
         val = str(val)
     return val