DSLs is all the rage but it seems the technology is actually useful 🙂 So here is some stuff that you’d probably want to know about:
Intentsoft created a workbench which can capture business information in the way the business wants.
JetBrains did something similar called Meta Programming System or MPS.
Want to know more about your own code base? Try MoDisco or Moose.
Lastly, using LL parsers is usually a big pain. Syntax Deﬁnition Formalism or SDF is another approach to define a syntax which avoids many of the problems of context-free grammars.