Eli Zaretskii writes: >> Date: Tue, 06 Dec 2022 00:30:52 +0600 >> From: Akib Azmain Turja via "Bug reports for GNU Emacs, >> the Swiss army knife of text editors" >> >> The 'Display Margins' node of Emacs Lisp manual says to put >> 'before-string' on text to use the marginal area (is this the correct >> term?) while not altering buffer text. But 'before-string' text >> property doesn't work. >> >> Steps: 1. Open a clean fundamental mode buffer. >> 2. (insert (propertize "foo" 'before-string "bar")) >> 3. The buffer shows only "foo", but not "bar" before it. > > The code is incorrect: 'before-string' is an overlay property, not a text > property. So you need to define an overlay with a 'before-string' property > whose value is a string, and put a 'display' property on that string. > If that code is incorrect, the 'Display Margins' node of Emacs Lisp manual is also wrong. On the fourth paragraph, it says, "put a ‘before-string’ property on the text". The manual should be clear. > And if you want the 'display' property to show text in the margin, you need > also to use set-window-margins to setup the margin. I know that. -- Akib Azmain Turja, GPG key: 70018CE5819F17A3BBA666AFE74F0EFA922AE7F5 Fediverse: akib@hostux.social Codeberg: akib emailselfdefense.fsf.org | "Nothing can be secure without encryption."