Constructing outline-regexp to include title text

[uzibalqa]

I am changing the recognition of headings in outline-minor-mode.  Currently 
only the heading
level is described.  

;;; MN 

where N is the level number. 

I want to add the possibility of a heading title text and need to change
outline-minor-mode.

;;; M1  This is a title for Level 1.
;;; M2  This is a title for Level 2.

(defvar elisp-hglevels
  '( (";;; H1" . 1) (";;; H2" . 2) (";;; H3" . 3) (";;; H4" . 4)
     (";;; H5" . 5) (";;; H6" . 6) (";;; H7" . 7) (";;; H8" . 8) )
  "Set outline levels for for command shell outline headings.")

(defun elisp-outl ()
  "Set bash headings for outline mode."
  (interactive)
    (setq outline-regexp
           (concat (regexp-opt (mapcar 'car elisp-hglevels)) "\\>"))
    (setq outline-heading-alist elisp-hglevels) )