diff --git a/Foundation/CPData.j b/Foundation/CPData.j
index a418362e4..e5c339a83 100644
--- a/Foundation/CPData.j
+++ b/Foundation/CPData.j
@@ -70,6 +70,11 @@
     return self;
 }
 
+- (id)initWithString:(CPString)aString
+{
+    return [self initWithSerializedPlistObject:aPlistObject];
+}
+
 - (id)initWithSerializedPlistObject:(id)aPlistObject
 {
     self = [super init];
@@ -90,6 +95,16 @@
     return self;
 }
 
+- (void)setString:(CPString)aString
+{
+    return [self setSerializedPlistObject:aString];
+}
+
+- (CPString)string
+{
+    return [self serializedPlistObject];
+}
+
 - (int)length
 {
     return [[self encodedString] length];
diff --git a/Objective-J/CFPropertyList.js b/Objective-J/CFPropertyList.js
index 9bddee856..4082f9cda 100644
--- a/Objective-J/CFPropertyList.js
+++ b/Objective-J/CFPropertyList.js
@@ -66,9 +66,9 @@ CFPropertyList.readPropertyListFromFile = function(/*String*/ aFilePath)
     return CFPropertyList.propertyListFromString(FILE.read(aFilePath, { charset:"UTF-8" }));
 }
 
-CFPropertyList.writePropertyListToFile = function(/*CFPropertyList*/ aPropertyList, /*String*/ aFilePath)
+CFPropertyList.writePropertyListToFile = function(/*CFPropertyList*/ aPropertyList, /*String*/ aFilePath, /*Format*/ aFormat)
 {
-    return FILE.write(aFilePath, CFPropertyList.stringFromPropertyList(aPropertyList), { charset:"UTF-8" });
+    return FILE.write(aFilePath, CFPropertyList.stringFromPropertyList(aPropertyList, aFormat), { charset:"UTF-8" });
 }
 #endif
 
diff --git a/Objective-J/Preprocessor.js b/Objective-J/Preprocessor.js
index 3323cf412..8223229b4 100644
--- a/Objective-J/Preprocessor.js
+++ b/Objective-J/Preprocessor.js
@@ -146,6 +146,13 @@ function preprocess(/*String*/ aString, /*String*/ aPath, /*unsigned*/ flags)
     return new Preprocessor(aString, aPath, flags).executable();
 }
 
+objj_preprocess = preprocess;
+
+objj_eval = function(/*String*/ aString)
+{
+    return eval(objj_preprocess(aString).code());
+}
+
 function Preprocessor(/*String*/ aString, /*String*/ aPath, /*unsigned*/ flags)
 {
     // Remove the shebang.