I am trying to define a kerning between V and /. (see question)

My approach is the following, but I don't see any differences between using the feature file and not using it.


languagesystem DFLT dflt;
languagesystem latn dflt;
feature kern {
pos \V  \SLASH -800;
} kern;


\setmainfont[FeatureFile=mykern.fea]{TeX Gyre Pagella}
%\setmainfont[]{TeX Gyre Pagella}


Text  & MV/m \\
equation & $MV/m$\\
two mathrm & $\mathrm{MV}/\mathrm{m}$\\
one mathrm & $\mathrm{MV/m}$\\
siunitx & \si[per-mode = symbol]{\mega\volt\per\metre}\\
%one mathrm & $\mathrm{MV/m}$\\
  • You have to use real glyph names from the font, I’m pretty sure TeX Gyre Pagella has no glyph named SLASH. Commented Jun 19, 2013 at 12:39
  • I thought I have to use the unicode names. I found that solidus and slash are synonyms
    – TeXtnik
    Commented Jun 19, 2013 at 12:53

1 Answer 1


I made it changing the pos line to pos V \slash -100;.

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