Kerning with Lualatex

Question

This is a recurring topic, but I haven't found a satisfactory and up-to-date answer. I apologize for any redundancy.

I'd like to use Hoefler Text within Linux/Tex Live. I installed the font as a system font. I load it with Lualatex.

Writing in French, Hoefler has some problems with properly kerning the apostrophe:

L\mbox{'}exemple is better:

However, this is not practical. Given that microtype's kerning is not available in Lualatex, how would you best solve the issue? Is this achievable through \directlua? Should I install the font to be used through pdfTex?

Thanks I could have spot this post. One last question if I may: how would you define the space between the L et the apostrophe as achieved with \mbox without defining the kerning for L? — jfk, Apr 19 '23 at 14:46
Sorry, I don’t understand what you’re asking in your comment. Maybe I need more caffeine. — Thérèse, Apr 21 '23 at 16:39

score 3 · Accepted Answer · answered May 06 '23 at 18:49

3

After some testing, I realised that the problematic kerning was rather between the "L" et the apostrophe (I also sligthly corrected the "T"):

\directlua{fonts.handlers.otf.addfeature
  {
    name = "kern",
    type = "kern",
    data = {                        
    ["L"] = { ["quoteright"] = 300 },
    ["T"] = { ["quoteright"] = 100 },
    }, 
  }
}

answered May 06 '23 at 18:49

jfk

101
6

1

Another useful reason why LuaLaTeX is awesome! – rallg May 06 '23 at 19:04

Kerning with Lualatex

1 Answers1