Version of Cascadia Mono?

[tiffany352]

🎯 Subject of the issue

Cascadia Mono is a version of Cascadia Code that doesn't have ligatures. I'd like if Nerd Fonts supported it.

Currently, the Windows Terminal does not support disabling ligatures. As a result, there's no way for me to turn off ligatures without either not using Nerd Fonts, or to choose a Nerd Fonts distribution for some other font.

🔧 Your Setup

• Which font are you using (e.g. Anonymice Powerline Nerd Font Complete.ttf)? Caskaydia Cove Nerd Font, v2.1.0. I tried all 4 variations in the .zip, they all have ligatures. I thought the two that say "Mono" wouldn't, but they do.
• Which terminal emulator are you using (e.g. iterm2, urxvt, gnome, konsole)? Windows Terminal 1.2.2381.0
• Are you using OS X, Linux or Windows? And which specific version or distribution? Windows 10

★ Optional

I'm trying Nerd Fonts because I'm using Starship as my shell's prompt.

Edit: It looks like Cascadia Mono PL covers the symbols that Starship uses either way, so it seems like I don't need this.

[ryanoasis]

thanks for the suggestion. glad you can get what you need for now with Cascadia Mono PL

[trallnag]

Took me a bit of time to figure out the difference between the two meanings of "Mono". For Cascadia it means no ligatures, for Nerd Fonts "Mono" is something completely different

[ffes]

I fell for the same trap, thinking that "Caskaydia Cove Nerd Mono" was the font without the ligatures.

It turns out since Windows Terminal v1.11 it is possible to disable the ligatures. See the docs at https://docs.microsoft.com/en-us/windows/terminal/customize-settings/profile-appearance#font-features

Note that turning the ligatures off by adding just "liga": 0 as a font feature doesn't work for "Caskaydia Cove Nerd" or "Caskaydia Cove Nerd Mono". After digging some more I found microsoft/terminal#759 (comment) With disabling a lot more features, you can turn off the ligatures. A bit of a hassle, but it works.

So having a Caskadya variant without the ligatures would be much more handy. I would suggest to call it "Caskadya Mono Nerd", to keep the naming it in line with the naming convention of the original font. But I don't mind how it is called, as long as it is clear what the differences are between them.

For convenience I pasted the full features object I added. I haven't investigated which one of these features actually does the trick. Note that you need to edit settings.json for this.

"features": {
    "calt": 0,
    "clig": 0,
    "dlig": 0,
    "hlig": 0,
    "liga": 0,
    "rlig": 0,
    "salt": 1
}

[Finii]

I believe there are a lot of people out there that rely on having ligatures in the Nerd Font Mono; me for one ;)

Well, I would change the source to Cascadia Mono and create a full set of

1. Caskaydia Mono Nerd Font
2. Caskaydia Mono Nerd Font Mono

Interestingly the RFN is already in place.

Having two different meanings for Mono is widespread for Nerd Fonts, for example

• Blex Mono Nerd Font Mono
• Ubuntu Mono Nerd Font Mono
• Fura Mono Nerd Font Mono

As for 'what mono means', yes the docu can and should be improved. Even more so if we add another third variant.

• Nerd Font (non-mono): Not monospaced, Symbols added ((*) scaled down to max 2 'widths')
• Nerd Font Mono: Unify advance width for all glyphs, added symbols scaled down to fit into one width
• Nerd Font MonoBigIcons: Unify advance width for all glyphs, added symbols may extend to up to 2 'widths'

Removal of ligatures does not happen in font-patcher but only in gotta-patch-em-all, for some fonts, like ... manually, inconsistent with what people that self-patch usually get.

(*) Not in effect at the moment, #748

[Finii]

I haven't investigated which one of these features actually does the trick.

Well, tables with lig in the name usually concern ligatures, while alt are for alternative characters.

[Finii]

Closing because transferred to #1095

[DimDroll]

I came to this discussion while searching for solution in google. Earlier comment confused me a little, so I removed:

salt
calt

From the list of the features, so I still had characters like:
--------------
Replaced with an alternatives.

Make sure to use feature set that @ffes provided.

Complete feature list can be found here:
https://learn.microsoft.com/zh-cn/typography/opentype/spec/featurelist
Thanks to the author of the following post for pointing it out here:
microsoft/terminal#12213 (comment)

[Finii]

A very convenient tool to enable / disable features in a font for terminals that do not allow to tweak the feature set:

https://github.com/MuTsunTsai/fontfreeze

Esp if you want to always use an alternative or whatever.

[github-actions]

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