|
From: | Herman |
Subject: | bug#64988: 30.0.50; move-to-column can move across lines if there is a text with display property |
Date: | Tue, 1 Aug 2023 12:53:57 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1 |
Repro: * emacs -Q* in the scratch buffer, move the cursor to the top, and put an empty line at the beginning of the buffer * execute 'M-: (put-text-property 1 2 'display "line\n")' (note: it's likely that the "\n" causes the problem)
* notice that the empty line becomes "line"* while the cursor still on the first line, execute 'M-: (move-to-column 20)'
The last command will move the cursor to the next line at column 16, instead of staying at the first line.
Note: I noticed this problem while using this package: https://github.com/jdtsmith/indent-bars.
The problem doesn't happen with emacs 28, this is the commit that introduced the issue:
4243747b1b8c3b7e3463822804b32e83febe2878 Fix 'current-column' in the presence of display strings
[Prev in Thread] | Current Thread | [Next in Thread] |