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+%%
+%% Ein Beispiel der DANTE-Edition
+%%
+%% 1. Auflage
+%%
+%% Beispiel 03-11-5 auf Seite 65.
+%%
+%% 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{38.80977pt}
+\setlength\parindent{0pt}
+\begin{document}
+\directlua{function checknode(head)
+for t in node.traverse(head) do
+ if t.id==0 or t.id==1 then checknode(t.head) end
+ if t.id==37 then if t.char>96 and t.char<122 then t.char=t.char-32 end end
+end
+return true end
+luatexbase.add_to_callback("post_linebreak_filter",checknode,"checknode")}
+abc1\par Und\par weiter \ldots %% Konvertierung in Großbuchstaben
+\end{document}