Open question for folks who've written/maintained #SyntaxHighlighting engines/themes/modes (in #Emacs lingo): either for #CodeEditors or #documentation :

Do you maintain keyword-lists/regular-expressions for terms _in_ the relevant specification that are not used as function/variable/module identifiers? And if so, how do you distinguish them from such "active" particles?

E.g., GSUB lookups in the std have specific names like SingleSubstFormat1 . Ideally that's not reused.
#roostForBeach