Ability to filter filenames (rename files) during project generation

When generating a new project from an archetype, I need to filter not only values within files, but the names of the files themselves.

For example, in .NET projects, the project files (.sln, .csproj) match the name of the solution or project rather than having a fixed name like Maven's pom.xml does.

Another user raised a similar issue on the mailing list, the ability to filter in the name of Java source code files.

See: http://www.nabble.com/Archetype%2C-define-file-name-ts18430983.html