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authorKarl Berry <karl@freefriends.org>2013-02-13 00:06:34 +0000
committerKarl Berry <karl@freefriends.org>2013-02-13 00:06:34 +0000
commit33b9decf3736250e2c7bc7c110b29116cef82dda (patch)
treebb7f7257a9b96e51599ca309607995d89ecd82fe /Master/texmf-dist/doc/luatex/luaintro/04-04-13.lualtx
parentfee6ae63b6689ddbae970ff9114c6ed976bf1dab (diff)
luaintro (12feb13)
git-svn-id: svn://tug.org/texlive/trunk@29093 c570f23f-e606-0410-a88d-b1316a301751
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+%%
+%% Ein Beispiel der DANTE-Edition
+%%
+%% 1. Auflage
+%%
+%% Beispiel 04-04-13 auf Seite 97.
+%%
+%% 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[ngerman]{babel}
+%StartShownPreambleCommands
+\usepackage{libertine,luacode,blindtext,color,microtype}
+\begin{luacode*}
+function drawGlyphBB(glyph)
+ local width = glyph.width/2^16
+ local height = glyph.height/2^16
+ local depth = glyph.depth/2^16
+ local w=node.new("whatsit","pdf_literal")
+ w.data=string.format("q 1 0 0 RG 0.2 w "..-width.." "..-depth.." "..width.." "..(height+depth).." re b Q ")
+ return w
+end
+function markList(List)
+ while List do
+ if List.id==0 or List.id==1 then markList(List.head) end
+ if List.id==37 then
+ local m=List -- save current node
+ m=node.insert_after(m,m,drawGlyphBB(List))
+ end
+ List=List.next
+ end
+ return true
+end
+\end{luacode*}
+%StopShownPreambleCommands
+\begin{document}
+\directlua{luatexbase.add_to_callback("post_linebreak_filter",markList,"markList")}
+\color{white}\blindtext \par
+\end{document}