Re: [Manuel Serrano <Manuel.Serrano@sophia.inria.fr>] Re: flyspell before and after-string

> I don't know what happens in XEmacs--I only work on Emacs. > > The code you sent creates overlays. They would continue to exist and > be displayed until something removes them with delete-overlay. There > seems to be code in flyspell.el that tries to delete them, so the > question is why it does not delete these overlays. > > Manuel, could you debug it? I still think the problem is in Emacs or in the documentation about overlay. In the section "Overlays properties" it is said: -----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|----- `before-string' This property's value is a string to add to the display at the beginning of the overlay. The string does not appear in the buffer in any sense--only on the screen. `after-string' This property's value is a string to add to the display at the end of the overlay. The string does not appear in the buffer in any sense--only on the screen. -----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|----- So, I would have guessed that when a region using an overlay with a before-string and an after-string properties is deleted, the before-string and after-string disappear of the screen. That is, I have tried: -----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|----- (require 'flyspell) (defvar ov nil) (defun add-ov (beg end) (setq ov (make-overlay beg end nil t nil)) (overlay-put ov 'face 'flyspell-incorrect-face) (overlay-put ov 'mouse-face 'highlight) (overlay-put ov 'before-string "->") (overlay-put ov 'after-string "<-")) (defun del-ov () (delete-overlay ov)) -----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|----- Then, on a random buffer: -----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|----- (add-ov 1 4) (delete-region 1 4) -----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|----- The strings "->" and "<-" are still on the screen. Is this really normal?