If I had known about browsing history with `C-r` before [I modified the fasd
package to implement full ivy
support](c4c04873fd),
then I guess I would not have modified it. Anyway, now that "full Ivy support"
has been merged into the fasd package, I could add this 'search-from' action
command to `fasd-find-file` which triggers Spacemacs 'search-auto'. Because fasd
only finds dirs that have been visited before, it probably does not add much to
the `C-r` functionality, but maybe it does (you decide?). Anyway, I hope you can
help decide if this is useful for merging.
`fasd-find-file` incorrectly interprets a prefix argument of value 1
as equivalent to nil ([issue][0]).
Work around this bug by just passing another positive number instead.
We choose 2.
[0]: https://framagit.org/steckerhalter/emacs-fasd/-/issues/14
Helm seems to treat "!" specially in pattern matching, so having a ! in
the pattern string when traversing directories is problematic. This
change fixes#2737, because as far as I can tell "+" has no special
meaning in a helm pattern.
Of course, we can choose a different character, but I'm fond of "+" as
representing "more layers here".
