[NETBEANS-2510] Terminal displays "p" at initial cursor position when vi starts

• Type: Bug
• Status: Open
• Priority: Trivial
• Resolution: Unresolved
• Affects Version/s: 11.0
• Component/s: cnd - Terminalemulator

Environment

Hardware
MacBook Pro 15-inch 2017
Graphics Radeon Pro 555 2048 MB
Intel HD Graphics 630 1536 MB

Software
Product Version: Apache NetBeans IDE 11.0 (Build incubator-netbeans-release-404-on-20190319)
Java: 10.0.2; OpenJDK 64-Bit Server VM 10.0.2+13
Runtime: OpenJDK Runtime Environment 10.0.2+13
System: Mac OS X version 10.13.6 running on x86_64; UTF-8; en_NZ (nb)

• Assignee: Unassigned
• Reporter: Malcolm
• Created: 07/May/19 02:13
• Updated: 07/May/19 02:13

Description

The issue can be seen by starting vi with or with any arguments, provided the initial window is sufficiently large. When the window size is smaller the problem doesn't occur.

The issue is that a lowercase "p" is drawn onscreen and the cursor is positioned after it. The character is only drawn onscreen. The file, if one is opened from the command line, is not modified. Although it appears as if it has been. I attempt to correct the error and that causes problems.

 

If you look at the attached image you'll see it on the vi splash screen.

 

 

In the next screen shot you can see what happens when you open a file that had been edited previously and the cursor is somewhere in the middle of the file.

 

 

Moving the cursor away from it's initial position isn't enough to remedy the screen drawing bug. The next screen shot shows this. The rendering bug persists, causing even more confusion.

 

 

Vi is the only tool that I've seen affected by this. Displaying the file content using cat reveals that there has been no change to the file content at all.