Makes it possible to put templates in subdirectories

README.md

@@ -203,11 +203,12 @@ One restriction is that a state and a messages may share have the same name, i.e
 If the parser is successful it will hold the following data in the AST
 
 ```java
-public record DocumentNode(
-        Map<String, String> config,
-        Set<TypeNode> typeDefinitions,
-        List<EndpointNode> endpoints,
-        Set<StateNode> states) {
+public record GeneratorNode(
+	Map<String, String> config,
+	Set<TypeNode> typeDefinitions,
+	List<EndpointNode> endpoints,
+	Set<StateNode> states,
+	Meta meta) {
 }
 ```
 
@@ -304,3 +305,14 @@ public record TransitionNode(String message, String toState) {
 ```
 * `name` is the message name.
 * `toState` is the name of the target state.
+
+### Meta
+
+The meta container holds information about the template file used to generate the output file.
+It holds the subdirectory below the given `templateDir` where the template was found.
+
+This is useful to generate e.g. java `package`statements like this:
+
+```injectedfreemarker
+<#list meta.templateDirectories>package <#items as dir>${dir}<#sep>.</#items>;</#list>
+```