Hi Brian, Fixed in less-487, unfortunately it is in BETA yet.
http://www.greenwoodsoftware.com/less/ http://www.greenwoodsoftware.com/less/news.487.html > Fix bug in Unicode handling that missed some double width characters. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to less in Ubuntu. https://bugs.launchpad.net/bugs/1562308 Title: missing or duplicate lines caused by a wrapped line with wide characters Status in less package in Ubuntu: Confirmed Bug description: When you scroll down text with "j" key and encounter a wrapped line with wide characters (such as UTF8-encoded Japanese characters), "less" seems to show the whole wrapped line at a single "j" key, causing the view scroll down by 2 lines at once. Strangely, if you type "k" to scroll up, it does that by only 1 line. As a result, there is a missing line that should have been shown. Even stranger stuff (i.e., duplicate lines) happens when you type "j" and "k" alternately when a wrapped line with wide characters is at the bottom of the view. # Steps to reproduce 1. Open xterm. 2. Set the geometory of xterm to 71x22. 3. Open the attached lesstest.long_jap.txt with less (maybe you need environment variable LANG=ja_JP.UTF-8) 4. Type "j", then you will see "003" at the top, and a long wrapped line with Japanese characters at the bottom. 5. Type "k", then you will see "001" and "003" at the top. "002" is missing. # Expected behavior In step 4, only the first part of the wrapped line should be shown. In step 5, all "001", "002" and "003" should be shown. # Test Environment - Xubuntu 16.04 (Xenial) beta (in VirtualBox on Xubuntu 14.04) - less: 481-2.1 - xterm: 322-1ubuntu1 - Japanese environment (LANG=ja_JP.UTF-8) # Note - The same problem happens on xfce4-terminal (0.6.3-2ubuntu1) - lv (4.51-2.3build1) doesn't have such problem. - In "less" in Xubuntu 14.04 (version 458-2), this problem didn't exist. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/less/+bug/1562308/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
