fractions

[asibahi]

Hello.

I am making a kitchen slide rule as a fun project. I am going to use astrolabe as a font for the writing, but I am wondering if it has (or has planned) fraction support, so I can use it for the numbers as well.

Edit: The website has a typo توزسيع .

[khaledhosny]

I can add fractions (numr, denom feature and a fraction slash and HarfBuzz will create the fraction out of them), but my font has only ١٢٣ numbers and not 123.

Thanks for catching the typo, I fixed it, and thanks for the blog post link, my late father had one of these but I never knew what it is called.