1 files changed, 78 insertions, 2 deletions
diff --git a/Master/texmf-dist/doc/latex/einfuehrung/examargin.cls b/Master/texmf-dist/doc/latex/einfuehrung/examargin.cls
index c166b31e8b6..de2bc8fdae6 100644
--- a/Master/texmf-dist/doc/latex/einfuehrung/examargin.cls
+++ b/Master/texmf-dist/doc/latex/einfuehrung/examargin.cls
@@ -1,5 +1,13 @@
+%
+% $Id: examargin.cls 631 2012-01-21 18:35:47Z herbert $
+%
+%%
+%% The LaTeX Companion, 2ed
 %%
-%% Copyright (C) 2012 Herbert Voss
+%% Example ``margin lines'' class for use with the Companion examples.
+%%
+%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
+%%    Johannes Braams, David Carlisle, and Chris Rowley
 %%
 %% It may be distributed and/or modified under the conditions
 %% of the LaTeX Project Public License, either version 1.3
@@ -27,5 +35,73 @@
                        % but if necessary there is origplain
 
 
-\renewcommand{\ttdefault}{cmtt}
+% Public version uses cmtt (ectt)
+%\renewcommand{\ttdefault}{cmtt}\endinput
+% Book version uses emtt, and restricts to two colors.
+
+\DeclareFontFamily{T1}{emtt}{\hyphenchar \font\m@ne}
+\DeclareFontShape{T1}{emtt}{m}{n}{
+        <-9>    emtt8
+        <9-10>  emtt9
+        <10-12> emtt10
+        <12->   emtt12
+      }{}
+\DeclareFontShape{T1}{emtt}{m}{it}{
+        <->     emitt10
+      }{}
+\DeclareFontShape{T1}{emtt}{m}{sl}{
+        <->     emsltt10
+      }{}
+\DeclareFontShape{T1}{emtt}{m}{sc}{
+        <->     emtcsc10
+      }{}
+
+% FAKE OT1 as it is needed in one example
+
+\DeclareFontFamily{OT1}{emtt}{\hyphenchar \font\m@ne}
+\DeclareFontShape{OT1}{emtt}{m}{n}{
+        <-9>    emtt8
+        <9-10>  emtt9
+        <10-12> emtt10
+        <12->   emtt12
+      }{}
+
+\renewcommand{\ttdefault}{emtt}
+
+% as the book is printed in two colors only (black and blue) we need
+% to ensure that other colors are replaced by gray if necessary:
+
+\AtBeginDocument{
+\ifx\color\@undefined
+\else
+\definecolor{red}{gray}{.7}
+\definecolor{green}{gray}{.8}   % we keep green
+\definecolor{yellow}{gray}{.9}
+\fi
+}
+
+% for margin rules in math examples we need color to make them
+% blue. So in this class color is actually always present:
+
+\RequirePackage{color}
+
+\newcommand \EX@rulewidth {0.25pt}
+
+%% Keep on hacking!
+\newcommand \SetupMarginLines{%
+    \AtBeginDocument
+     {\hbox\bgroup \kern-\EX@rulewidth
+      {\color{blue}\vrule width \EX@rulewidth}%
+      \vbox\bgroup}%
+    \AtEndDocument
+     {\egroup       
+      {\color{blue}\vrule width \EX@rulewidth}%
+      \kern-\EX@rulewidth \egroup}%   
+}
+
+
+\SetupMarginLines
+
+
 \endinput
+