Dear Peter, Thank you for your help. By changing (expr s) to (text s), it works! I am using ConTeXt Minimal and the luatex version is "This is LuaTeX, Version beta-0.61.0-2010072816"
Thank you again. Dalyoung ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________
