Problem with "three-em dash"

[tsujan]

@yan12125
Feel free to close this report if it's really unimportant, especially since "three-em dash" seems to me like a suspicious character.

While I was amazed by QTerminal's high rendering quality, I found a counter-example, namely "three-em dash": ⸻

Current Behavior

The cursor position is incorrect when I type multiple "there-em dashes" with DejaVu Sans Mono. In this screenshot, the cursor should be at the line end (I just typed "haha"):

Expected Behavior

The cursor position should be correct, of course.

Context

I was playing with various characters and QTerminal showed all of them correctly — until I typed multiple "there-em dashes" with DejaVu Sans Mono. Does this character contradict monospace-ness? Maybe. But the cursor position is correct with FeatherPad.

System Information

• Latest git QTerminal

[tsujan]

Konsole suffers from the same problem. XTerm cheats beautifully, by "compressing" this character.

Recently I fixed major cases of bad rendering; strange that this one still exists! It can't be like lxqt/qtermwidget#569; it isn't a double-column char either.

EDIT: Actually, it's a case of lxqt/qtermwidget#569 and is drawn much better than when this report was opened. A simple trick is needed for drawing it as xterm does. Will make a PR soon.