[luatex] German hyphenation, fontspec and adjusted kerning

[Heilmann, Till A.]

As Ulrike Fischer pointed out to me, the German hyphenation patterns conflict with the adjustment of kerning pairs via fontspec and OTF feature files.

Minimal example ...

bonum.fea

languagesystem DFLT dflt;
languagesystem latn dflt;
feature kern {
pos f h 100;
} kern;

test.tex

\documentclass{article}
\makeatletter\bbl at patterns{ngerman}\makeatother
\usepackage{fontspec}
\setmainfont[FeatureFile=bonum.fea]{TeX Gyre Bonum}
\begin{document}
fh aufhalten
\end{document}

Is this a bug that can be fixed or do we have to live with it?
-- 
Dr. Till A. Heilmann
Research Assistant

UNIVERSITY OF BASEL
Institute for Media Studies
Bernoullistrasse 28
CH-4056 Basel
Tel. +41 (0)61 267 09 86
Fax  +41 (0)61 267 08 87
E-Mail till.heilmann at unibas.ch
www.mewi.unibas.ch

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