Tracking context inside a grammar

```
* Limitations: There is no way (afaik) in highlight.js to assign classes based
* on position. As a result, a TripleConstraint with a predicate and a datatype
* will have the same class applied to both.
```

Could you provide a quick example of what you're talking about here? While it might be true it's not (currently) easy to do you should be able to define a sub-mode that's derives from the parent mode but is different... so something nested inside a block could be highlighted differently than the same thing would if it were outside the block.

But perhaps that's not what your'e getting at here at all.