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+%% 
+%%  Ein Beispiel der DANTE-Edition
+%%  
+%%  1. Auflage
+%% 
+%%  Beispiel 04-04-15 auf Seite 98.
+%% 
+%%  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}
+\usepackage{luacode}
+\usepackage{libertine,blindtext}
+\usepackage[ngerman]{babel}
+\begin{luacode*}
+local out=assert(io.open("target/CP/xlist5.nodes","w")) -- für interne Kontrolle
+local ntype=node.types()
+function printList(head)
+while head do
+  if head.id==8 then out:write(head.id..","..head.subtype) -- ein whatsits
+                else out:write(string.format("%3d",head.id))
+  end
+  if head.id==37 then out:write("\"",unicode.utf8.char(head.char),"\" ->")
+  else out:write("    ->")
+  end
+  if head.next == nil then out:write("nil")
+  else out:write(string.format("%3d",head.next.id))
+  end
+  out:write(" ("..ntype[head.id].."->")
+  if head.next==nil then out:write("nil)\n")
+                    else out:write(ntype[head.next.id]..")\n")
+  end
+  if head.id==0 or head.id==1 then printList(head.head)   -- Rekursion
+  end
+  head=head.next
+end
+return true
+end
+\end{luacode*}
+%StartShownPreambleCommands
+\begin{luacode*}
+function rSpace(List)
+ for line in node.traverse_id(0,List) do
+   for s in node.traverse_id(10,line.head) do node.remove(line.head,s) end
+ end
+ return true
+end
+\end{luacode*}
+%StopShownPreambleCommands
+\begin{document}
+\blindtext \par
+\directlua{luatexbase.add_to_callback("post_linebreak_filter",rSpace,"rSpace")}
+\blindtext \par
+\end{document}