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alerque / libertinus

The Libertinus font family
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Incomplete IPA coverage #438

Open mylbrinkerhoff opened 3 years ago

mylbrinkerhoff commented 3 years ago

There are characters that are missing for the International Phonetic Alphabet coverage for tone. The one symbol that is missing is the downstep arrow which looks like a superscript down arrow. An example of this can be seen in the official IPA chart IPA_Kiel_2015.pdf .

kimmus commented 3 years ago

Is this not at U+A71C, modifier letter raised down arrow? Admittedly, it is present in Libertinus Serif only.

mylbrinkerhoff commented 3 years ago

That could be the reason. I was trying to use it in the non-serif fonts and kept getting the Unicode not found symbol.

kimmus commented 3 years ago

You could ask for it (and presumably also its neighbours) to be added to Libertinus Sans.

mylbrinkerhoff commented 3 years ago

How would I go about asking for those to be added to the other Libertinus fonts?

alerque commented 3 years ago

How would I go about asking for those to be added to the other Libertinus fonts?

I think this issue accomplishes that.

But lets be a little more specific. Porting symbols between fonts is often easy because the shapes don't need any revision, but letter glyphs are harder because Serif vs. Sans styles are different. If you do the research looking up Unicode code points that need checking and pasting a string here that we can compare that will help a lot.

From that it should become more clean: which symbols exactly are missing from which font families & styles? And of those which do or don't need adapting to the style?

zl-zhou commented 3 years ago

The ⱱ (U+2C71) is missing from all fonts, but I believe it is really only necessary in the Serif and Sans fonts. The design of the glyph is a merger of v and ɾ (U+027E), both of which already exist both in Serif and Sans.