We implemented an algorithm for layout preservation in refactorings. The algorithm reconstructs the source code after a transformation on the abstract syntax tree, preserving the layout of the original source code. The library will be integrated in [[WebHome][the Spoofax language workbench]] in the near future. Until then you can use the library in your Spoofax project by copying the code from subversion: https://svn.strategoxt.org/repos/StrategoXT/refactoring/lib-reconstruction/