[luatex] fontspec prevents German hyphenation

[Stephan Hennig]

Am 02.08.2010 12:58, schrieb Manuel Pégourié-Gonnard:

> \documentclass{article}
> \makeatletter
> \newcommand\try[1]{\showhyphens{\bbl at patterns{#1} Andenken}}
> \makeatother
> \begin{document}
> \try{german}
> \try{ngerman}
> \try{german-x-latest}
> \try{ngerman-x-latest}
> \end{document}
>
> With lualatex:
>
> [][]  \OT1/cmr/m/n/10 An-denken
> [][]  \OT1/cmr/m/n/10 An-denken
> [][]  \OT1/cmr/m/n/10 An-denken
> [][]  \OT1/cmr/m/n/10 An-denken
>
> With pdflatex:
>
> []  []\OT1/cmr/m/n/10 An-den-ken
> []  []\OT1/cmr/m/n/10 An-den-ken
> []  []\OT1/cmr/m/n/10 An-denken
> []  []\OT1/cmr/m/n/10 An-denken


This is intentional.  Anden is the German name for Andes (mountains). 
The hyphenation Anden-ken therefore belongs to the class of 
(potentially) misleading hyphenations and is suppressed.  This behaviour 
is documented in package dehyph-exptl (with other examples).

Note, when LuaTeX is able to weight hyphenations, we can put a huge 
penalty upon such hyphenations instead of suppressing them completely.

Best regards,
Stephan Hennig