GNU bug report logs - #24073
24.5; outline-on-heading-p sees any invisible text property as outline inviisble

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Package: emacs;

Reported by: Paul Rankin <hello <at> paulwrankin.com>

Date: Tue, 26 Jul 2016 08:13:02 UTC

Severity: normal

Merged with 28080

Found in versions 24.5, 25.2

Fixed in version 26.1

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Paul Rankin <hello <at> paulwrankin.com>
To: Noam Postavsky <npostavs <at> users.sourceforge.net>
Cc: 24073 <at> debbugs.gnu.org
Subject: bug#24073: 24.5; outline-on-heading-p sees any invisible text property as outline invisible
Date: Tue, 02 Aug 2016 17:20:11 +1000

I've added the following into my major mode to patch outline until the
bug is addressed...

    (with-eval-after-load 'outline
      (advice-add 'outline-invisible-p :filter-return
                  (lambda (return) (eq return (or 'outline t)))
                  '((name . "fountain-mode-patch")))
      (dolist (fun '(outline-back-to-heading
                     outline-on-heading-p
                     outline-next-visible-heading))
        (let ((source (find-function-noselect fun)))
          (with-current-buffer (car source)
            (goto-char (cdr source))
            (eval (read (current-buffer))))))
      (message "Function `outline-invisible-p' has been patched"))

But I'm a bit concerned if users install Emacs without uncompiled Lisp
source, will this result in an error that Emacs simply can't find the
library outline?
This bug report was last modified 4 years and 202 days ago.

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