FAQ: in what order do CTAGS option files apply

There are three possible option files that CTAGS will read from, namely, from low priority to high priority:

• $PROJECT_ROOT/.ctags (if exists)
• $PACKAGE_ROOT/lib/ctags-config (fork from symbols-view)
• $SOMETHING_ELSE (given by package config extraCommandArguments)

That's the reason why we could use .ctags to add new languages/patterns but have to use Extra Command Arguments For CTAGS to override existing ones.