I'm only talking about JavaScript because it was the most difficult language to correctly parse so far. The examples I chose highlight that it's not as simple a

I'm only talking about JavaScript because it was the most difficult language to correctly parse so far. The examples I chose highlight that it's not as simple as a couple regexes. Notice how curly brackets can indicate: additional JS code, objects, or interpolated strings. The objects require different syntax highlighting than the JS code. This means you need some complex regexes to provide additional insight into what your highlighting. And as someone actively working on this, yes. It is a nightmare. No, it's not trivial.