Hello, I ran into a problem with the LaTeX-package listing related to the handling of extendedchars (it can be easily avoid by using extendedchars=false). I think I have tracked down the problem to the following difference between luatex and pdftex/xetex: \documentclass{article} \begin{document} \catcode`\^^00=13 \ifnum`^^00=0 ja \else nein \fi \end{document} When processed with LaTeX or XeLaTeX I get a document with "ja". Luatex gives "nein". Is this difference to be expected? -- Mit freundlichen Grüßen Ulrike Fischer mailto:list@nililand.de