Messed up character width for some fonts

[lukepistrol]

For some fonts the character width is a bit messed up (i.e. too wide).

SwiftTerm:

Apple's Terminal (iTerm looks the same):

The font used in this example is FiraCode but this happens with a couple of other fonts (Source Code Pro for Powerline, Fira Mono for Powerline) too which look totally normal in other Terminal emulators.

[migueldeicaza]

This is odd, how did you get this setup?

[Hukeqing]

This is odd, how did you get this setup?

This is the issue I raised at this address(CodeEditApp/CodeEdit#1084). @lukepistrol helped me to re-raise it here. You can check the configuration information of the original issue. If you need other help information, you can contact me

[migueldeicaza]

Folks, I could appreciate a complete bug report, something I can reproduce on my end.

Otherwise, I spend hours tracking down third party issues. I am using those fonts and do not have that problem on iOS.

[scrapp08]

Adding onto this, nerd fonts do not seem to render correctly.

What I'm getting:

What is expected:

By the looks of if, the font isn't even the right one.

[jwells89]

I’m seeing this issue with a few fonts as well.

Screenshot taken in my own project, but it’s reproducible in the MacTerminal sample project by:

1. Installing the attached version of the free Cascadia Code font
2. In viewDidLoad() in ViewController.swift, inserting terminal.font = NSFont(name: "Cascadia Code", size: 13)!
3. Running the app

I’m running macOS 14.3.1 (23D60) on an Apple Silicon machine. Let me know if there are any details I’ve missed, and if it would be helpful I can try to reproduce this in a clean VM and an Intel mac to help rule out possibilities.

CascadiaCode.zip