Variable: info-lookup-file-name-alist
info-lookup-file-name-alist is a customizable variable defined in
info-look.el.gz.
Value
(("\\`ac\\(local\\|site\\|include\\)\\.m4\\'" . autoconf-mode))
Documentation
Alist of file names handled specially.
List elements are cons cells of the form
(REGEXP . MODE)
If a file name matches REGEXP, then use help mode MODE instead of the buffer's major mode.
Source Code
;; Defined in /usr/src/emacs/lisp/info-look.el.gz
(defcustom info-lookup-file-name-alist
'(("\\`ac\\(local\\|site\\|include\\)\\.m4\\'" . autoconf-mode))
"Alist of file names handled specially.
List elements are cons cells of the form
(REGEXP . MODE)
If a file name matches REGEXP, then use help mode MODE instead of the
buffer's major mode."
:type '(repeat (cons (regexp :tag "Regexp")
(symbol :tag "Mode"))))