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+%%
+%% Ein Beispiel der DANTE-Edition
+%%
+%% 1. Auflage
+%%
+%% Beispiel 04-01-3 auf Seite 72.
+%%
+%% Copyright (C) 2013 Herbert Voss
+%%
+%% It may be distributed and/or modified under the conditions
+%% of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%%
+%% See http://www.latex-project.org/lppl.txt for details.
+%%
+%%
+%% ====
+% Show page(s) 1
+%%
+%%
+\documentclass[]{exaarticle}
+\pagestyle{empty}
+\setlength\textwidth{352.81416pt}
+\setlength\parindent{0pt}
+%StartShownPreambleCommands
+\usepackage{luacode,fontspec}
+\begin{luacode}
+ function listCallbacks()
+ local n=4 -- Spaltenzahl der Tabelle
+ tex.print("\\footnotesize\\begin{tabular}{@{} *" .. n .. "l @{}}")
+ local i=0
+ info=callback.list()
+ for k in pairs(info) do
+ if info[k] then
+ tex.sprint("\\verb|" .. k .. "|")
+ i=i+1
+ if i==n then tex.print("\\\\") i=0 else tex.print(" & ") end
+ end
+ end
+ tex.print("\\end{tabular}")
+ end
+\end{luacode}
+%StopShownPreambleCommands
+\begin{document}
+\directlua{listCallbacks()}
+\end{document}