Is there an existing issue for this?

• I have searched the existing issues

What problem does this feature solve?

I'm looking for a way to speed up syntax highlighting and lexing. In my case, since I'm only actually highlighting keywords, comments and strings, I'm thinking a lot of other regexes can be skipped.

What feature do you propose?

Would it be a good idea to add an option to skip rules/token types? If this makes sense, I'm willing to work on this, would appreciate any pointers on where to look as well.