Regression in highlighting involving commas

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3.0.0 has introduced the following regression in highlighting:

The comma after True removes its highlighting. This might be related to #121 which is also caused by commas.

[sheaf]

This isn't limited to commas:

Here A1 is not highlighted because of the comma, and B1 because of the parenthesis. Same issue also happens with lists:

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Unfortunately the fix seems to have broken qualified names:

before:

after:

edit: and it also broke promotion ticks:

before:

after:

[sheaf]

All these regressions have now been taken care of, and are covered by the tests to ensure no further regressions are possible.