```
1: doctype "MainGrammar.g.etl";
2:
3: /// This doc comment should be ignored
4: let a = 5;
5: let b = a;
6: // There is no round brackets in the grammar yet. So blocks are used.
7: a + b / 2 + {let c = 3; c * {a-b+1;}; };
8:
```