Variable: imenu-level-separator
imenu-level-separator is a customizable variable defined in
imenu.el.gz.
Value
":"
Documentation
The separator between index names of different levels.
Used for flattening nested indexes with name concatenation.
Source Code
;; Defined in /usr/src/emacs/lisp/imenu.el.gz
(defcustom imenu-level-separator ":"
"The separator between index names of different levels.
Used for flattening nested indexes with name concatenation."
:type 'string)