font validation failed, installing Meslo font

[zno5]

🎯 font validation failed

Font validation has failed when I install Meslo bold italic font.
Other fonts(bold, italic, regular) are fine.

The problem is name table usability has caution.

🔧 Your Setup

• Meslo LG S Bold Italic Nerd Font Complete Mono.ttf
• macOS 10.14.6

★ Optional

[ryanoasis]

@zno5 Thanks for the report, low priority issue but issue non-the-less. Is it the same warning with regular Meslo font (non Nerd Font patched) ?

[yaneura-no-gomi]

I have the same problem with Meslo LG M Bold Nerd Font Complete Mono.ttf

[PatTheMav]

@ryanoasis Fwiw I had the same issue when patching SF Mono recently (which felt like a regression because I didn't use to have that issue). What "fixed" it for me was to add this little stinker before the subFamily is added to fontname:

        subFamily = subFamily.replace(' ', '')

Whereas the fontname was SFMonoNerdFont-Regular Italic, it now became SFMonoNerdFont-RegularItalic - without any spaces in there (they are removed from the fontname as well) macOS seems to like the name table again.

To summarise:

Results in bad name table:

Family Name:    SFMono Nerd Font
Full Name:      SFMono Regular Italic Nerd Font
Font Name:      SFMonoNerdFont-Regular Italic
Sub-Family:     Regular Italic

Results in good name table:

Family Name:    SFMono Nerd Font
Full Name:      SFMono Regular Italic Nerd Font
Font Name:      SFMonoNerdFont-RegularItalic
Sub-Family:     RegularItalic

EDIT: On top of that I found that to fix the "full name" (as presented by macOS' font book) requires to work around a quirk - macOS generates this name from the Windows font properties, which are not always overwritten by fontforge. To fix this one has to first set the SFNTName property for Fullname to an empty string, and then once more for the correct value.

[torarnv]

Had this after patching Menlo:

[torarnv]

The subFamily = subFamily.replace(' ', '') trick worked.

[torarnv]

Fixed in #820. Only the font name (PS name) needs sanitation.

[github-actions]

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