HAML syntax highlighting broken

[j-erasmus]

Describe the issue
HAML syntax highlighting is broken

Codepen

This issue was previously reported (#1435) and closed, but the issue does not seem to be fixed.

Which language seems to have the issue?
HAML

Sample Code to Reproduce

!!! 5
%html
  %body
    %h1.foo-bar This works fine
    %span.hello.world syntax is fine here
    .broken{ broken: 'yes' }
    %anything.working{ working: 'fine' }
      .also-broken
      .i-am-broken
        .me-too
          %h1.good All good!

Expected behavior (Rouge example)

Additional context
Same issue with HAML mixed with Ruby:

[joshgoebel]

I'm wondering if the . and % should be part of the match or not? (if not, probably punctuation?)

[j-erasmus]

We could take some inspiration from Rouge, they seem to make . and % part of the match, your example above looks good too (i.e. only make . part of the match).