master 3c00496: Delete Emacs 19 compat code in foldout.el

[Stefan Kangas]

branch: master
commit 3c00496baa5f2017a58ab43dcafeebe7a92658e1
Author: Stefan Kangas <stefan@marxist.se>
Commit: Stefan Kangas <stefan@marxist.se>

    Delete Emacs 19 compat code in foldout.el
    
    * lisp/foldout.el (foldout-hide-flag):
    (foldout-show-flag): Delete Emacs 19 compat code and make obsolete.
    (foldout-exit-fold): Don't use above obsolete variable.
---
 lisp/foldout.el | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/lisp/foldout.el b/lisp/foldout.el
index 2de49d2..3419d7f 100644
--- a/lisp/foldout.el
+++ b/lisp/foldout.el
@@ -230,14 +230,6 @@ An end marker of nil means the fold ends after 
(point-max).")
       (setcdr outl-entry (nconc foldout-entry (cdr outl-entry)))
       ))
 
-;; outline-flag-region has different `flag' values in outline.el and
-;; noutline.el for hiding and showing text.
-
-(defconst foldout-hide-flag
-  (if (featurep 'noutline) t ?\^M))
-
-(defconst foldout-show-flag
-  (if (featurep 'noutline) nil ?\n))
 
 
 (defun foldout-zoom-subtree (&optional exposure)
@@ -364,8 +356,7 @@ exited and text is left visible."
 
        ;; make sure the next heading is exposed
        (if end-marker
-           (outline-flag-region end-of-subtree beginning-of-heading
-                                foldout-show-flag)))
+            (outline-flag-region end-of-subtree beginning-of-heading nil)))
 
       ;; zap the markers so they don't slow down editing
       (set-marker start-marker nil)
@@ -551,6 +542,14 @@ Valid modifiers are shift, control, meta, alt, hyper and 
super.")
     (define-key outline-minor-mode-map mouse-3 'foldout-mouse-hide-or-exit)
     ))
 
+;; Obsolete.
+
+(defconst foldout-hide-flag t)
+(make-obsolete-variable 'foldout-hide-flag nil "28.1")
+
+(defconst foldout-show-flag nil)
+(make-obsolete-variable 'foldout-show-flag nil "28.1")
+
 (provide 'foldout)
 
 ;;; foldout.el ends here