Variable: dabbrev-check-other-buffers
dabbrev-check-other-buffers is a customizable variable defined in
dabbrev.el.gz.
Value
t
Documentation
Should M-/ (dabbrev-expand) look in other buffers?
nil: Don't look in other buffers.
t: Also look for expansions in the buffers pointed out by
dabbrev-select-buffers-function.
Anything else: When we can't find any more expansions in
the current buffer, then ask the user whether to look in other
buffers too.
The default value is t.
Source Code
;; Defined in /usr/src/emacs/lisp/dabbrev.el.gz
(defcustom dabbrev-check-other-buffers t
"Should \\[dabbrev-expand] look in other buffers?
nil: Don't look in other buffers.
t: Also look for expansions in the buffers pointed out by
`dabbrev-select-buffers-function'.
Anything else: When we can't find any more expansions in
the current buffer, then ask the user whether to look in other
buffers too.
The default value is t."
:type '(choice (const :tag "off" nil)
(const :tag "on" t)
(other :tag "ask" other))
:group 'dabbrev)