Or at least, where to find it in the Vim source code?
Tried to show it with :set tabline, but only got an empty string back. The custom function example in :h tabline is helpful and one that
resembles the default, but without adding a + for a modified buffer or truncating the names.
Why do I need this?
What I'm trying to achieve is pretty much explained in this answer, but can't get into the intricacies of Vimscript at the moment to recreate the default behaviour, so I was planning to
- get the default function, and
- tack the above solution onto it.
(If this is not possible, will just have to find the time to learn Vimscript properly..:)