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Bug#1123509: xterm: various issues with the U+FE0F VARIATION SELECTOR-16 (VS16) character after emoji



On Wed, Dec 17, 2025 at 07:56:40PM -0500, Thomas Dickey wrote:
> > BTW, there was another issue I hadn't reported here: this extra
> > "blank" cell does not have the correct background when it is
> > different from the default background.
> 
> agreed - I'm working on that.
> 
> Fixing these display issues and providing a way to turn the feature off
> are all I intend for #406

hmm - further investigation of the display issues shows that using HIDDEN_CHAR
for the filler when extending a code due to VS16 isn't handled as nicely as
I'd thought (lots of work is to resolve that, and I'm busy with ncurses).

There are other fixes since #403 which are being held up by this.
So... I'm changing the filler to a blank (which means that selection
in VS16 would select the filler as a separate character), but (since I
added an option already with the VS16 feature off by default),
doing that should resolve the important issue here.

-- 
Thomas E. Dickey <dickey@invisible-island.net>
https://invisible-island.net

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