[stringtemplate-interest] Way to merge/save changes to generated code

[Richard Catlin]

I am using Antlr/StringTemplate to generate a SessionFacde class.  I then
need to fill in some of the methods.  Is there a way to merge/save the user
hand written code, if the file is regenerated.  I thought using SVN would at
least allow me to diff the file and cut and paste the user hand written
code, but was wondering if anyone has a better strategy for automating.
Other tools like Acceleo have a merge/lost feature.  "lost" is user code
that could not be merged due to a change in the generated code, such as a
method deletion.

For instance, a Session Facade may be:

public class SessionFacade1 {
  public String method1() {
    /* User hand-written code */
    return "hello";
    /* end User hand-written code */
  }
}

Thanks for any help.
Richard Catlin
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