Organization of Classes

[Ralf]

@mekkablue

@Ralf

Glyphs 2 seems to be OK, so…

Don’t RTL kern in Glyphs 2. You can keep the RTL kerning clean in Glyphs 3, you cannot in Glyphs 2. In Glyphs 2, the RTL and LTR kerning pairs were not directionally separated.

So one could end up with weird kerning pairs, and difficulties when kerning between non-directional symbol and directional glyph.

There is a problem when converting between the two ways when the kerning groups are not directionally clean. And that is very difficult to resolve.

I am really confused. You say, that Glyphs 2 do not produce correct RTL kerning?
This should have been mentioned somewhere, did it?

Anyway. For me it seems to work. The following example worked with indesign correctly

But imported in Glyphs 3 and processed with the 2 to 3 script, it looks like this:

So, it is impossible to convert RTL kerning between directional and non-directional glyphs reliable?