It is a tool for generate a grammar from an existing Ecore metamodel without creating Xtext projects.
- unzip the GrammarGenerator.zip file
- copy the GrammarGenerator_...jar to the dropins folder of your eclipse
- Start/Restart your eclipse
- Open your plug-ins view
- Find the plugin and import it (then it will exist in your Project Explorer
- Run it as an application or run the runtime (You are allowed to use it in runtime or just as an application.
- When you have start it, you will be ask to select an ecore from the pop-up browser
- Input the root class name
- You will be asked to select the genmodel file from the pop-up browser
- You will be asked input the name of the project/DSL/extension. Done.