Systems and methods are disclosed for editing pre-existing source code to remove non-functional commentary. In one exemplary embodiment, there is provided a method for processing the pre-existing source code and providing a cleansed version of source code. Moreover, the method includes identifying the non-functional commentary in the pre-existing code; cutting the non-functional commentary from the pre-existing code; and providing an edited version of code absent the non-functional commentary. Other exemplary embodiments may include generating reference information that associates the non-functional commentary with the locations in the pre-existing code from where the non-functional commentary was deleted.