tex-overview (19oct10)

git-svn-id: svn://tug.org/texlive/trunk@20174 c570f23f-e606-0410-a88d-b1316a301751

3 files changed, 549 insertions, 415 deletions

diff --git a/Master/texmf-dist/doc/latex/tex-overview/tex-overview-aux.tex b/Master/texmf-dist/doc/latex/tex-overview/tex-overview-aux.tex
new file mode 100644
index 00000000000..903489fc6fa
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/tex-overview/tex-overview-aux.tex
@@ -0,0 +1,159 @@
+% !TeX root = tex-overview.tex
+%% (for the TeXworks-users.)
+
+\usepackage{
+  bookmark,
+  cooltooltips,
+  dtklogos,  %% for \NTS etc.
+  fontspec,
+  geometry,
+  hyperref,
+  pdftexcmds,
+  tikz,
+  xcolor,
+  xparse
+}
+
+%% circumventing a bug in cooltooltips
+\makeatletter
+  \let\topdfescapestring\pdf@escapestring
+%  \let\toanywherehook\@empty
+%  \def\toAtEndDocument{\g@addto@macro\toanywherehook}
+\makeatother
+
+\setmainfont{TeX Gyre Pagella}
+\setsansfont{TeX Gyre Pagella}
+
+\hypersetup{
+  colorlinks=true,
+  linkcolor=blue,
+  urlcolor=blue,
+  pdfborder=0 0 0   %% don’t like these boxes
+}
+
+\date{\today}
+\pagestyle{empty}
+
+%% use LaTeX3 syntax from here on:
+\ExplSyntaxNamesOn
+
+\tl_set:Nn\settextviews{}
+\cs_set:Nn\addtotextviews:n{\tl_gput_right:Nn\settextviews{#1}}
+
+%% some missing definitions for \TeX-like things
+\tl_set:Nn\XeT{X\kern -.1667em\lower .5ex\hbox {E}\kern -.125emT\@}
+\tl_set:Nn\ConTeXt{Con\TeX{}t}
+
+%% constants for the colors. Might change from time to time …
+\tl_set:Nn\vip{red}
+\tl_set:Nn\normalimportant{blue}
+\tl_set:Nn\experimental{yellow}
+\tl_set:Nn\program{black}
+\tl_set:Nn\package{green}
+\tl_set:Nn\distro{orange}
+
+%% shorthand to keep a good structure of the node positions
+\fp_new:N\layer
+\fp_new:N\layerdist
+\fp_set:Nn\layer{0}
+\fp_set:Nn\layerdist{-1}
+
+%% width of the tooltip-boxes (negative value to make them disappear at all)
+\dim_set:Nn\fboxrule{-1mm}
+
+%% to separate important from not-so-important nodes
+\bool_new:N\short
+\bool_gset_true:N\short
+
+%% Style of the nodes: shade from a light 
+\tikzstyle{coolnode} = [
+	draw=\nodecolor!50!black!70,
+	top color=\nodecolor!10!white!105,
+	bottom color= \nodecolor!50!black!50
+]
+
+%% set the first default node style (will change to \distro or \program in the document)
+\cs_set_eq:NN\tonodestyle\normalimportant
+
+%% tonode ⇒ tex-overview node, now with better argument specifier
+\NewDocumentCommand\tonode{O{\tonodestyle}D(){no label given}D(){no position given}D<>{no description given}m}{
+%% save the content pdfescaped
+  \tl_set:No\tonodecontent{\topdfescapestring{#4}}
+
+%% test if we are in the short or full view
+  \gdef\nodecolor{#1}
+  \bool_if:NTF\short{
+  %% short view
+    \tl_if_eq:NNT#1{\vip}{   %% then check if this is an important node
+      \node[coolnode]
+	(#2) at (#3) {
+        \cooltooltip{#2}{\tonodecontent}{\tonodecontent}{}{#5\strut}
+      };
+    }
+  }{
+  %% long view
+    \node[coolnode] (#2) at (#3) {
+      \cooltooltip{#2}{\tonodecontent}{\tonodecontent}{}{#5\strut}
+    };
+  %% and the text view, to be added only once!
+  \addtotextviews:n{\subsubsection*{\color{blue}#5}\parbox{\textwidth}{#4}}
+  }
+}
+
+%% we want to make use of two pdf layers: the upper (main) one for the nodes
+%% and the lower (background) one for the lines. That way, the lines will not cross the nodes
+\pgfdeclarelayer{background}
+\pgfsetlayers{background,main}
+
+%% the command to draw from one node to the other one. Fine tuning is possible via optional argument #3
+\NewDocumentCommand{\todraw}{st{'}t{.}t{-}O{}d()d()}{
+  \begin{pgfonlayer}{background}
+    %% draw in the case that: either a * is given (always draw) or (' is given and \short) or nothing is given
+    \bool_if:nT{#1 || (#2 && \short) || !(#2 || \short)}
+      {\draw [thick,gray,\IfBooleanT{#3}{dotted},\IfBooleanT{#4}{dashed},#5] (#6) to (#7);}  %% I’m just loooving expl3!
+  \end{pgfonlayer}
+}
+
+%% a command for creation of bib-items.
+\NewDocumentCommand\tobibsection{m}{
+  \subsection*{#1}
+}
+\NewDocumentCommand\tobibsubsection{m}{
+  \subsection*{#1}
+}
+\NewDocumentCommand\tobib{mD<>{}O{}}{
+  \vspace*{1.5ex}
+\begin{minipage}{\textwidth}  %% to prevent page breaks
+  #1\\ \quad \url{#2} #3
+\end{minipage}
+}
+
+\NewDocumentCommand{\setlayer}{m}{
+  \fp_set:Nn\layer{#1}
+}
+\NewDocumentCommand{\steplayer}{O{\layerdist}}{
+  \fp_add:Nn\layer{#1}
+}
+
+\addtokomafont{section}{\LARGE}
+\addtokomafont{subsection}{\large}
+
+
+\NewDocumentCommand{\overviewsection}{omO{\tonodestyle}}{
+  \clearpage
+  \cs_gset_eq:NN\tonodestyle#3
+%%  \dim_set:Nn\pdfpagewidth{9cm}       %% make a smaller paper so the header won’t feel so alone on the big, big paper
+%%  \dim_set:Nn\pdfpageheight{2.5cm}
+  \IfNoValueTF{#1}{\section{#2}}{\section[#1]{#2}}
+  \bool_if:NF\short{\addtotextviews:n{\IfNoValueTF{#1}{\section{#2}}{\section[#1]{#2}}}}
+
+%%  \dim_set:Nn\pdfpagewidth{21cm}     %% back to a4
+%%  \dim_set:Nn\pdfpageheight{29.7cm}
+}
+\NewDocumentCommand{\overviewsubsection}{omO{\tonodestyle}}{
+  \cs_gset_eq:NN\tonodestyle#3
+  \IfNoValueTF{#1}{\subsection{#2}}{\subsection[#1]{#2}}
+    \bool_if:NF\short{\addtotextviews:n{\IfNoValueTF{#1}{\subsection{#2}}{\subsection[#1]{#2}}}}
+}
+
+\ExplSyntaxNamesOff
\ No newline at end of file
diff --git a/Master/texmf-dist/doc/latex/tex-overview/tex-overview.pdf b/Master/texmf-dist/doc/latex/tex-overview/tex-overview.pdf
index 9e15fd5d0b0..601071b81ec 100644
--- a/Master/texmf-dist/doc/latex/tex-overview/tex-overview.pdf
+++ b/Master/texmf-dist/doc/latex/tex-overview/tex-overview.pdf
diff --git a/Master/texmf-dist/doc/latex/tex-overview/tex-overview.tex b/Master/texmf-dist/doc/latex/tex-overview/tex-overview.tex
index f4976e573b1..5ae5d93bfde 100644
--- a/Master/texmf-dist/doc/latex/tex-overview/tex-overview.tex
+++ b/Master/texmf-dist/doc/latex/tex-overview/tex-overview.tex
@@ -1,342 +1,295 @@
-%% Engine needed: luaTeX > 0.60
+%% Engine needed: luaTeX ≥ 0.63
 %% Format needed: LaTeX2ε
-%% Packages needed: see list below …
+%% Packages needed: see list in the -aux.tex file …
 %% just use an up-to-date TeXlive2010 and the lualatex program to typeset
 
-% this document has version number 0.1
+% this document has version number 0.1b
 
 \documentclass{scrartcl}
 
-\usepackage{
-  cooltooltips,
-  dtklogos,
-  fontspec,
-  geometry,
-  hyperref,
-  lmodern,
-  natbib,
-  tikz,
-  xparse
-}
+\input{tex-overview-aux}  %% everything that is not content-related
 
-\hypersetup{
-  colorlinks=true,
-  linkcolor=blue,
-  urlcolor=blue,
-  pdfborder=0 0 0
-}
+\title{An overview of \TeX, its children\\ and their friends~\dots}
+\author{Arno Trautmann\thanks{arno.trautmann@gmx.de}}
+\begin{document}
+\maketitle
 
-\ExplSyntaxNamesOn
+\begin{abstract}
+{\centering \large \hyperref[textextview]{Link for the impatient.}\\[2ex]}
+In the world of \TeX, there are many developments and ambiguous names. This paper tries to give an overview of the development of \TeX\ and related programs. Contributions are welcome!\footnote{The current source of this document is availble at \url{http://github.com/alt/tex-overview}. Please feel free to patch there or mail me any suggestions and comments. I'll be happy to extend and correct this document!}\\
+\end{abstract}
 
-\tl_set:Nn\XeT{XET}
-\tl_set:Nn\Aleph{Aleph}
-\tl_set:Nn\ConTeXt{Con\TeX{}t}
-
-\tl_set:Nn\vip{1 0 0}
-\tl_set:Nn\other{0 0 0}
-\tl_set:Nn\normalimportant{0 0.5 0}
-\tl_set:Nn\experimental{0 .7 .7}
-
-\tl_set:Nn\program{0 0 0}
-\tl_set:Nn\package{0 .5 0}
-\tl_set:Nn\distro{0 .5 0}
-
-\dim_new:N\layer
-\dim_new:N\layerdist
-\dim_set:Nn\layer{0cm}
-\dim_set:Nn\layerdist{1cm}
-
-\bool_new:N\short
-\bool_gset_true:N\short
-
-\NewDocumentCommand\mynode{O{\normalimportant}mmmm}{
-%% test if we are in the short or full view
-  \bool_if:NTF\short{
-  %% short view
-    \tl_if_eq:NNT#1{\vip}{   %% then check if this is an important node
-      \node (#2) at (#3) {
-        \cooltooltip[#1]{#2}{#4}{#4}{}{#5\strut}
-      };
-    }
-  }{
-  %% long view
-    \node (#2) at (#3) {
-      \cooltooltip[#1]{#2}{#4}{#4}{}{#5\strut}
-    };
-  %% and the text view, to be added only once!
-  \AtEndDocument{\subsubsection*{\color{blue}#5}\parbox{\textwidth}{#4}}
-  }
-}
+\section{Introduction}
+The base frame and main idea of this document was taken from the article \textsf{A brief history of \TeX,~volume~II} by Arthur Reutenauer in the proceedings of \textsf{EuroBacho\TeX 2007} and his talk there (see references). Additional information is taken from original documentations (see references on page \pageref{sec:refs}) and some review articles. For old, historic information, the \textsf{historic archive} maintained by Ulrik Vieth and hosted on \url{ftp.tug.org} (see refs) was very useful. Many thanks for that great archive!
 
-\NewDocumentCommand{\setlayer}{m}{
-  \dim_set:Nn\layer{#1cm}
-}
-\NewDocumentCommand{\steplayer}{O{-1}}{
- \dim_add:Nn\layer{\layerdist}
-}
+All information is up to the date of this generated pdf. Everything here is without guarantee – this is just to get an overview. Consult the references for further (and/or correct) information! 
 
-\NewDocumentCommand{\drawfull}{u{;}}{
-  \bool_if:NF\short{\draw #1;}
-}
-\NewDocumentCommand{\drawshort}{u{;}}{
-  \bool_if:NT\short{\draw #1;}
-}
+In the tree views (page \pageref{sec:tree}), every node has a tooltip that shows up when you hover the mouse over it. If your pdf viewer does not support this, go to the end of the document, where every tooltip is written in normal text (page \pageref{sec:text}).
 
-\NewDocumentCommand{\overviewsection}{m}{
-  \clearpage
-  \dim_set:Nn\pdfpagewidth{9cm}       %% make a small paper so the header won’t be lost on the big, big paper
-  \dim_set:Nn\pdfpageheight{2.5cm}
-  \section{#1\bool_if:NT\short{ – short view}}
-  \clearpage
-  \dim_set:Nn\pdfpagewidth{21cm}     %% back to a4
-  \dim_set:Nn\pdfpageheight{29.7cm}
-}
-\NewDocumentCommand{\overviewsubsection}{om}{
-\IfNoValueTF{#1}{\subsection{#2}}{\subsection[#1]{#2}}
-  \bool_if:NF\short{\AtEndDocument{\subsection[#1]{#2}}}
-}
+\clearpage
+I tried to make the graphs more readable by using colors. All decisions reflect my personal opinion, not that of the community, of the authors or someone else.
+\begin{description}
+\item[{\let\nodecolor\normalimportant \tikz \node[coolnode]{normal};}] That is, not very important in my opinion, no huge user group, but still maybe important for special needs. Was in use at least some time back, but is not of great impact nowadays.
+\item[{\let\nodecolor\vip \tikz \node[coolnode]{important};}] Engines or formats that had or have a great impact on (everyday) typesetting for a large community.
+\item[{\let\nodecolor\experimental \tikz \node[coolnode]{experimental};}] Developments that might still be under construction or were never used by a large community. Nevertheless, these might be very important to the development of other engines or for use of special typesetting.
+\item[{\let\nodecolor\package \tikz \node[coolnode]{package};}] \LaTeX-packages that seemed worth mentioning. There won't be many of this. Not-included packages are not necessarily unimportant!
+\item[{\let\nodecolor\distro \tikz \node[coolnode]{distribution};}] Software bundles that bring \TeX\ and friends to the normal user.
+\item[{\let\nodecolor\program \tikz \node[coolnode]{program};}] Programs that are not directly connected to \TeX\ (but interesting in the context of using \TeX) or are separate helper programs.
+\end{description}
 
-\ExplSyntaxNamesOff
-\title{A short overview of \TeX, its children and their friends~\dots}
-\author{Arno Trautmann \thanks{arno.trautmann@gmx.de}}
-\date{\today}
-\pagestyle{empty}
+Furthermore, there are two versions of some graphs: A short version mentioning only the most important things and a full one with everything I could find.
 
-\begin{document}
-\maketitle
+In most cases I did not mention the authors of the programs/packages. This is not to diminish their effort but only for clarity (long names make things harder to read). I did not write any of the below-mentioned programs or packages. The authors are given in the documents linked in the references.
 
-\begin{abstract}
-In the world of \TeX, there are many developments and ambiguos names. This paper tries to give an overview of the development of \TeX\ and related programs. Contributions are welcome!\footnote{The current source of this document is availble at \url{http://github.com/alt/tex-overview}. Please feel free to patch there or mail me any suggestions and comments. I’ll be happy to extend and correct this document!}
-\end{abstract}
+\section{How to contribute}
+I hope one day this document would become the standard reference for questions like ”What program do I need for …?“, ”What's the difference between ...\TeX\ and ...\TeX?“, ”Why is it called …?“ etc.
 
-The base frame of this document is taken from the article \textsf{A brief history of \TeX, volume II} by Arthur Reutenauer in the proceedings of \textsf{EuroBacho\TeX 2007} and his talk there (see references). Additional information is taken from original documentations (see references on page \pageref{sec:refs}) and some review articles. For old, historic information, the \textsf{historic archive} maintained by Ulrik Vieth and hosted on ftp.tug.org (see refs) was very useful. Many thanks for that great archive!
+To get to this point, I need some help of people having read more documentation or even developed some of the programs mentioned here themselves. Special help is needed for:
+\begin{itemize}
+\item font technologies
+\item METAFONT and succesors
+\item Bib\TeX\ and successors/alternatives
+\end{itemize}
 
-All information is up to the date of the generated pdf. Everything here is without guarantee – this is just to get an overview. Consult the references for further (and/or correct) information! 
+It is up to you to contribute texts, references, links, descriptions, hints etc. I'll be happy about anything I can add here. Also, if you have suggestions about the layout, let me know.
 
-In the tree views (page \pageref{sec:tree}), every node has a tooltip that shows up when you hover the mouse over it. If your pdf viewer does not support this, go to the end of the document, where every tooltip is written in normal text (page \pageref{sec:text}). I tried to make the graph more readable by using colors:
+\section{Problems with pdf viewers}
+As this document makes heavy use of pdf-features, some pdf viewers are not able to show everything correct and as intended. My experiences with viewers are as follows:
 
 \begin{description}
-\item[{\color[rgb]{\normalimportant} normal}] (whatever that means)
-\item[{\color[rgb]{\vip} important}] developments (only in my opinion) – i.\,e. engines or distributions that had or have a great impact on (everyday) typesetting for a large community
-\item[{\color[rgb]{\experimental} experimental}] developments that might still be under construction or were never used by a large community. Nevertheless, these might be very important to the development of other enginges or for use of special typesetting. \item[{\color[rgb]{\other} other}] programs that are not directly connected to \TeX\ but are interesting in the overview, are given in black.
-\end{description}
+\item[evince] Shows the document correct and complete. Tested using Linux.
 
-Furthermore, there are two versions of the important graphs: A short version mentioning only the most important things and a full one with everything I could find.
+\item[Acrobat Reader] will show all the information but might hide some text of very long tooltips (at least that's the case on my machine). Also, it draws annoying green boxes around the tooltips which do not belong there.
 
-In most cases I did not mention the authors of the programs/packages. This is not to diminish their effort but only for clarity (long names make things harder to read). I did not write any of the below-mentioned programs or packages. The authors are given in the documents linked in the references.
+\item[TeXworks] The built-in pdf viewer of the TeXworks editor does not break lines of tooltips, therefore long annotations are not shown completely.
+
+\item[okular] also does not break the lines.
+
+\item[xpdf] shows only very short tooltips. Most of the information is not visible in the graphs.
+\end{description}
 
 \clearpage
+\twocolumn
 \tableofcontents
 \clearpage
 
 \newgeometry{margin=1cm}  %% to save space
 \NewDocumentCommand{\typesetwholecontent}{}{  %% begin all stuff
 
-\overviewsection{Tree Views}
+\clearpage
+\part{Tree Views}
 
-\overviewsubsection[\TeX]{\TeX\ – the program, and extensions/derivatives}
+\overviewsection[\TeX]{\TeX\ – the program}
 \label{sec:tree}
 \Large
 \centering
+
 %%% TEX  %%%
 \begin{tikzpicture}
-	\setlayer2
-	\mynode[\vip]{tex}{7,\layer}{born in 1978}{\TeX}
+\label{textextview}
+	\setlayer0
+	\tonode[\vip](tex)(7,\layer)<Born in 1978 by Donald Erwin Knuth.>{\TeX}
 	
-	\steplayer[-0.5]
-	\mynode[\other]{ant}{13,\layer}{Ant is Not TeX. A typesetting system inspired by TeX. Only *inspired*, so it has nothing to do with TeX in terms of common code.}{ANT};
-	\drawfull[dotted] (tex) to (ant);
+	\tonode[\program](ant)(13,\layer)<Ant is Not TeX. A typesetting system inspired by TeX. Only *inspired*, so it has nothing to do with TeX in terms of common code.>{ANT};
+	\todraw[dotted](tex)(ant)
 	
-	\steplayer
-	\mynode{xet-tex}{3,\layer}{The first extension to TeX, 1987. It was able to typeset in two directions, but only with a mark in the dvi to change the direction.}{\TeX-\XeT}
-	\drawfull (tex) to (xet-tex);
+	\steplayer[-1.5]
+	\tonode(tex-xet)(3,\layer)<The first extension to TeX, 1987. It was able to typeset in two directions, but only with a mark in the dvi to change the direction.>{\TeX-\XeT}
+	\todraw(tex)(tex-xet)
+
+	\tonode(nihongo)(10,\layer)<A true multibyte extension of TeX. Could handle all Japanese characters in one font.>{Nihongo \TeX}
+	\todraw(tex)(nihongo)
 	
-	\steplayer[-2]
-	\mynode{xet--tex}{3,\layer}{TeX--XeT was able to really put the glyphs on the right place in the dvi.}{\TeX-{}-\XeT}
-	\drawfull (xet-tex) to (xet--tex);
+	\tonode(jtex)(15,\layer)<An extension of TeX for typesetting Japanese. (1987, Yasuki Saito)>{J\TeX}
+	\todraw(tex)(jtex)
+
+	\steplayer[-1.5]
+	\tonode(ptex)(10,\layer)<Extension of Nihongo TeX to enable vertical typesetting. ("p" for "publishing")  Distributed as WEB change files. >{p\TeX}
+	\todraw(nihongo)(ptex)
+
+	\steplayer[-1.5]
+	\tonode(tex--xet)(3,\layer)<TeX--XeT was able to really put the glyphs on the right place in the dvi.>{\TeX-{}-\XeT}
+	\todraw(tex-xet)(tex--xet)
 	
-	\mynode[\vip]{tex3}{7,\layer}{Ability to handle 8-bit input. 1989. TeX development was frozen in 1991 and only bugfixes were made. Now it in version 3.1415926, getting closer to pi with every bugfix ...}{\TeX3};
-	\drawfull (tex) to (tex3);
-	\drawshort (tex) to (tex3);
+	\tonode[\vip](tex3)(7,\layer)<Ability to handle 8-bit input. 1989. TeX development was frozen in 1991 and only bugfixes were made. Now in version 3.1415926, it gets closer to pi with every bugfix ...>{\TeX3};
+	\todraw*(tex)(tex3)
 	
 	\steplayer[-2]
-	\mynode{enctex}{5.4,\layer}{A small extension to TeX, started 1997. Adds 10 new primitives relating input re-encoding}{enc\TeX};
-	\drawfull (tex3) to (enctex);
+	\tonode(enctex)(5.9,\layer)<A small extension to TeX, started 1997. Adds 10 new primitives relating input re-encoding>{enc\TeX};
+	\todraw(tex3)(enctex)
 	
-	\mynode{mltex}{7.5,\layer}{Extension (started 1990) to TeX that allows hyphenation of words with accented letters. (Therefore the name: MultiLinual TeX.) Distributed as a change file to the original WEB sources of TeX.}{ML\TeX};
-	\drawfull (tex3) to (mltex);
+	\tonode(mltex)(8,\layer)<Extension (started 1990) to TeX that allows hyphenation of words with accented letters. (Therefore the name: MultiLingual TeX.) Distributed as a change file to the original WEB sources of TeX.>{ML\TeX};
+	\todraw(tex3)(mltex)
 	
+	\tonode[\experimental](uptex)(11,\layer)<Unicode-aware version of pTeX ("unicode-publishing"-TeX) also modernized from TeX3.>{up\TeX}
+	\todraw(tex3)(uptex)
+	\todraw(ptex)(uptex)
+
 	\steplayer[-2]
-	\mynode{tex2pdf}{7,\layer}{Early name for pdfTeX.}{\TeX2PDF};
-	\drawfull (enctex) to (tex2pdf);
-	\drawfull (mltex) to (tex2pdf);
+	\tonode(tex2pdf)(7,\layer)<Early name for pdfTeX. Don't confuse with converters like dvi2pdf.>{\TeX2PDF};
+	\todraw(enctex)(tex2pdf)
+	\todraw(mltex)(tex2pdf)
 	
 	\steplayer[-2]
-	\mynode{omega}{1,\layer}{Support for 16bit-unicode-input. Still constrained on the output}{$\Omega$};
-	\drawfull (tex3) to (omega);
+	\tonode(omega)(1,\layer)<Support for 16bit-unicode-input. Still constrained on the output.>{$\Omega$};
+	\todraw(tex3)(omega)
 	
-	\mynode[\vip]{etex}{4,\layer}{*the* extension to TeX.}{$\varepsilon$-\TeX};
-	\drawfull (xet--tex) to (etex);
-	\drawshort (tex3) to (etex);
+	\tonode[\vip](etex)(4,\layer)<An extension to TeX, provided by the NTS team as an intermediate project until NTS would be ready. eTex is a full TeX and backward compatible. The number of TeX's registers is increased and various new primitives useful to programmers are added.>{$\varepsilon$-\TeX};
+	\todraw(tex--xet)(etex)
+	\todraw'(tex3)(etex)
 	
-	\mynode[\vip]{pdftex}{7,\layer}{A new engine to directly produce pdf-files from TeX, without the need of dvi-ps-pdf. This allows to use microtypographic extensions and many other features of the pdf format.}{pdf\TeX};
-	\drawfull (tex2pdf) to (pdftex);
-	\drawshort (tex3) to (pdftex);
+	\tonode[\vip](pdftex)(7,\layer)<A new engine to directly produce pdf-files from TeX, without the need of dvi-ps-pdf. This allows to use microtypographic extensions and many other features of the pdf format like page transitions etc.>{pdf\TeX};
+	\todraw(tex2pdf)(pdftex)
+	\todraw'(tex3)(pdftex)
 	
-	\mynode{texgx}{10,\layer}{GX stands for Graphic eXtension, a font technologie TeXGX was able to handle. Only on Mac OS.}{\TeX{}gX};
-	\drawfull (tex3) to (texgx);
+	\tonode(texgx)(9.5,\layer)<GX stands for Graphic eXtension, a font technology. TeXGX was able to handle these fonts. Only on Mac OS.>{\TeX{}gX};
+	\todraw(tex3)(texgx)
 	
-	\mynode{nts}{12,\layer}{A project to completely reimplement TeX in Java. Now NTS is officially declared dead.}{\NTS};
-	\drawfull (tex3) to (nts);
+	\tonode(nts)(12,\layer)<A project to completely reimplement TeX in Java. Now NTS is officially declared dead.>{\NTS};
+	\todraw(tex3)(nts)
 	
 	\steplayer[-2]
-	\mynode[\experimental]{omega2}{0,\layer}{A short-time try to pick up the development of Omega again in 2006. Seemed more like a good plan and is now regarded as obsolete. LuaTeX is kind of a successor.}{$\Omega_2$};
-	\drawfull (omega) to (omega2);
+	\tonode[\experimental](omega2)(0,\layer)<A short-time try to pick up the development of Omega again in 2006. Seemed more like a good plan and is now regarded as obsolete. LuaTeX is kind of a successor.>{$\Omega_2$};
+	\todraw(omega)(omega2)
 	
-	\mynode[\experimental]{vtex}{3.6,\layer}{VTeX (VisualTeX) can produce pdf, html, svg, dvi or ps output directly from input. In contrast to pdfTeX, it includes a full PostScript interpreter, thus capable to include EPS figures, PStricks etc. First official version I found: February 15, 1999: VTeX 6.3; last official version seems to be from Oct 1, 2005: VTeX 8.61. Commercial product.}{V\TeX};
-	\drawfull (etex) to (vtex);
+	\tonode[\experimental](vtex)(3.6,\layer)<VTeX (VisualTeX) can produce pdf, html, svg, dvi or ps output directly from input. In contrast to pdfTeX, it includes a full PostScript interpreter, thus capable to include EPS figures, PStricks etc. First official version I found: February 15, 1999: VTeX 6.3; last official version seems to be from Oct 1, 2005: VTeX 8.61. Commercial product.>{V\TeX};
+	\todraw(etex)(vtex)
 	
 	\steplayer[-2]
-	\mynode[\experimental]{aleph}{1,\layer}{originally named epsilon-Omega, an attempt to stabilize Omega while merging epsilon extensions.}{$\aleph$ (\Aleph)};
-	\drawfull (omega) to (aleph);
-	\drawfull (etex) to (aleph);
-	
-	\mynode[\vip]{xetex}{8,\layer}{This extension enables full multilingual support for left-to-right typesetting, right-to-left and almost any other possible direction. XeTeX also features support for OpenType and AAT-fonts.}{\XeTeX};
-	\drawfull (texgx) to (xetex);
-	\drawfull (etex) to (xetex);
-	\drawshort (etex) to (xetex);
-	
-	\mynode[\experimental]{extex}{12,\layer}{Planned implementation of a high-quality typesetting system, written in Java. Based on experiences in NTS, eTeX, pdfTeX and Omega. Started in 2003, current version in repository is 0.0. (i. e. not very far ...)}{$\epsilon\chi$\TeX};
-	\drawfull (nts) to (extex);
-	\drawfull (omega) to (extex);
-	\drawfull (etex) to (extex);
-	\drawfull (pdftex) to (extex);
-	
-	\mynode[\vip]{pdfetex}{5,\layer}{Merging the pdfTeX engine with the eTeX-extensions. This engine can produce dvi (with or without the eTeX-extensions) as well as pdf (again, with or without extensions).}{pdf($\epsilon$)-\TeX};
-	\drawfull (etex) to (pdfetex);
-	\drawfull (pdftex) to (pdfetex);
-	\drawshort (etex) to (pdfetex);
-	\drawshort (pdftex) to (pdfetex);
+	\tonode[\experimental](aleph)(1,\layer)<Originally named epsilon-Omega, an attempt to stabilize Omega while merging epsilon extensions. Authors: John Plaice and Yannis Haralambous, now maintained for severe bugfixes by Taco Hoekwater.>{$\aleph$ (Aleph)};
+	\todraw(omega)(aleph)
+	\todraw(etex)(aleph)
+	
+	\tonode[\vip](xetex)(8,\layer)<This extension enables full multilingual support for left-to-right typesetting, right-to-left and almost any other possible direction. Unicode encoding is fully supported (utf8 as native encoding). XeTeX also features support for OpenType and AAT-fonts. In newest versions, character protrusion is possible -- hence the connection to pdfTeX.>{\XeTeX};
+	\todraw(texgx)(xetex)
+	\todraw*(etex)(xetex)
+	
+	\tonode[\experimental](extex)(12,\layer)<Planned implementation of a high-quality typesetting system, written in Java. Based on experiences in NTS, eTeX, pdfTeX and Omega. Started in 2003, current version in repository is 0.0. (i. e. not very far ...)>{$\epsilon\chi$\TeX};
+	\todraw(nts)(extex)
+	\todraw(omega)(extex)
+	\todraw(etex)(extex)
+	\todraw(pdftex)(extex)
+	
+	\tonode[\vip](pdfetex)(5,\layer)<Merging the pdfTeX engine with the eTeX-extensions. This engine can produce dvi (with or without the eTeX-extensions) as well as pdf (again, with or without extensions).>{pdf($\epsilon$)-\TeX};
+	\todraw*(etex)(pdfetex)
+	\todraw*(pdftex)(pdfetex)
+	\todraw*[dotted](pdfetex)(xetex)
 	
 	\steplayer[-2]
-	\mynode[\experimental]{eetex}{6,\layer}{Experimental extension to pdfeTeX by Taco Hoekwater, created 2000. Distributed as change file.}{ee\TeX};
-	\drawfull (pdfetex) to (eetex);
+	\tonode[\experimental](eetex)(6,\layer)<Experimental extension to pdfeTeX by Taco Hoekwater, created 2000. Distributed as change file. Now dead due to his development of luaTeX.>{ee\TeX};
+	\todraw(pdfetex)(eetex)
 	
 	\steplayer[-2]
-	\mynode[\other]{lua}{0,\layer}{Script language; has nothing to do with TeX!}{Lua};
+	\tonode[\program](lua)(0,\layer)<Script language; has nothing to do with TeX!>{Lua};
 	
-	\mynode[\vip]{luatex}{4,\layer}{LuaTeX will support unicode, OpenType and totally everything. TeXlive 2010 ships version 0.60.2. luaTeX features an embedded scripting language, lua, making it easy to extend so most of the programming can be done in lua instead of TeX-hackery.}{lua\TeX};
-	\drawfull (aleph) to (luatex);
-	\drawfull (pdfetex) to (luatex);
-	\drawfull[dashed] (lua) to (luatex);
-	\drawshort (pdfetex) to (luatex);
+	\tonode[\vip](luatex)(4,\layer)<LuaTeX supports utf8, OpenType and totally everything. TeXlive 2010 ships version 0.60.2. luaTeX features an embedded scripting language, lua, making it easy to extend, so most of the programming can be done in lua instead of TeX-hackery.>{lua\TeX};
+	\todraw(aleph)(luatex)
+	\todraw*(pdfetex)(luatex)
+	\todraw[dashed](lua)(luatex);
 	
 	\steplayer[-2]
-	\mynode[\experimental]{itex}{7,\layer}{iTeX is the official successor of TeX89, announced by Don Knuth at the TUG conference 2010.}{i\TeX};
+	\tonode[\experimental](itex)(7,\layer)<iTeX is the official successor of TeX3, announced by Don Knuth at the TUG conference 2010.>{i\TeX};
 \end{tikzpicture}
 
 
-\newpage
-\overviewsubsection[\LaTeX]{\LaTeX\ (Lamport's \TeX) – a format and large macro package for \TeX}
-\vspace*{2em}
+\overviewsection[\LaTeX]{\LaTeX\ (Lamport's \TeX\ format)}
 %%% LATEX %%%
+\hspace*{-5em}
 \begin{tikzpicture}
-	\setlayer{2}
-	\mynode{latex090}{-5.5,\layer}{First version still on web (historic archive, see refs) is 0.9, for use with TeX 0.95. No installation help found. Apparently one needs the files lplain.tex and latex.tex to create the format.}{\LaTeX\ 0.9};
+	\tonode(latex090)(-5.5,\layer)<First version still on web (historic archive, see refs) is 0.9, for use with TeX 0.95. No installation help found. Apparently one needs the files lplain.tex and latex.tex to create the format.>{\LaTeX\ 0.9};
 	
-	\steplayer[-0.4]
-	\mynode{latex091}{-2,\layer}{Version 0.91 for use with TeX 0.97 (C) 1983 by Leslie Lamport. Most changes to previous version are in the file lplain.tex.}{\LaTeX\ 0.91};
-	\drawfull (latex090) to (latex091);
+	\steplayer
+	\tonode(latex091)(-2,\layer)<Version 0.91 for use with TeX 0.97 (C) 1983 by Leslie Lamport. Most changes to previous version are in the file lplain.tex.>{\LaTeX\ 0.91};
+	\todraw(latex090)(latex091)
 	
 	\steplayer[-0.4]
-	\mynode{latex092}{2,\layer}{First version with the @ as letter for internal names. Seemlingy first version with a manual. For use with TeX Version 0.999999. (no joke, that's the version number given in the latex.tex file!) (C) 1983 by Leslie Lamport, conversion to 0.92 from 0.91 by Arthur Keller.}{\LaTeX\ 0.92};
-	\drawfull (latex091) to (latex092);
+	\tonode(latex092)(2,\layer)<First version with the @ as letter for internal names. Seeminlgy first version with a manual. For use with TeX Version 0.999999. (no joke, that's the version number given in the latex.tex file!) (C) 1983 by Leslie Lamport, conversion to 0.92 from 0.91 by Arthur Keller.>{\LaTeX\ 0.92};
+	\todraw(latex091)(latex092)
 	
 	\steplayer[-0.4]
-	\mynode{latex09210}{6,\layer}{Adaption of 0.92 for TeX version 1.0. (C) 1983 by Leslie Lamport, conversion to 0.92 from 0.91 by Arthur Keller.}{\LaTeX\ 0.92 - 1.0};
-	\drawfull (latex092) to (latex09210);
+	\tonode(latex09210)(6,\layer)<Adaption of 0.92 for TeX version 1.0. (C) 1983 by Leslie Lamport, conversion to 0.92 from 0.91 by Arthur Keller.>{\LaTeX\ 0.92 - 1.0};
+	\todraw(latex092)(latex09210)
 	
-	\steplayer[-1.5]
-	  \mynode{latex2010}{-5,\layer}{Seemingly heavy changes compared to 0.92. Version for TeX 1.0. Release of 11 Dec 1983. There were never official versions 1.x }{\LaTeX\ 2.0 - 1.0};
-	\drawfull (latex09210) to (latex2010);
+	\steplayer[-1.8]
+	\tonode(latex2010)(-5,\layer)<Seemingly heavy changes compared to 0.92. Version for TeX 1.0. Release of 11 Dec 1983. There were never public versiaons 1.x >{\LaTeX\ 2.0 - 1.0};
+	\todraw(latex09210)(latex2010)
 	
 	\steplayer[-.4]
-	\mynode{latex205}{0,\layer}{No sure information found so far.}{\LaTeX\ 2.05};
-	\drawfull (latex2010) to (latex205);
+	\tonode(latex205)(0,\layer)<No sure information found so far.>{\LaTeX\ 2.05};
+	\todraw(latex2010)(latex205)
 	
 	\steplayer[-.4]
-	\mynode{latex206a}{5,\layer}{Release of version 2.06a of the LaTeX macros. September 1984.}{\LaTeX\ 2.06a};
-	\drawfull (latex205) to (latex206a);
+	\tonode(latex206a)(5,\layer)<Release of version 2.06a of the LaTeX macros. September 1984.>{\LaTeX\ 2.06a};
+	\todraw(latex205)(latex206a)
 	
 	\steplayer[-2.3]
-	\mynode[\vip]{latex209}{0,\layer}{The first official version by Leslie Lamport, 1985.}{\LaTeX\ 2.09};
-	\drawfull (latex206a) to (latex209);
+	\tonode[\vip](latex209)(0,\layer)<The first official version by Leslie Lamport, 1985.>{\LaTeX\ 2.09};
+	\todraw(latex206a)(latex209)
 	
 	\steplayer[-2]
-	\mynode{slitex}{2,\layer}{A variation of LaTeX2.09 to provide an easy way for producing presentations. In LaTeX2e absorbed as a documentclass (slides).}{SLI\TeX};
-	\drawfull (latex209) to (slitex);
+	\tonode(slitex)(2,\layer)<A variation of LaTeX2.09 to provide an easy way for producing presentations. In LaTeX2e absorbed as a documentclass (slides).>{SLI\TeX};
+	\todraw(latex209)(slitex)
 	
-	\mynode{amslatex11}{6,\layer}{A port of Spivak’s AMS-\TeX to LaTeX 2.09, released 1990}{\AMS\LaTeX\ 1.1};
-	\drawfull (latex209) to (amslatex11);
+	\tonode(amslatex11)(6,\layer)<A port of Spivak's AMS-TeX to LaTeX 2.09, released 1990>{\AMS\LaTeX\ 1.1};
+	\todraw(latex209)(amslatex11)
 	
 	\steplayer[-1.7]
-	\mynode[\vip]{latex2ε}{0,\layer}{June 1994: New release of LaTeX to avoid incompatible dialects of LaTeX 2.09. Introduced by the LaTeX3-Team.}{\LaTeXe};
-	\drawfull (latex209) to (latex2ε);
-	\drawfull[dashed] (slitex) to (latex2ε);
-	\drawfull[dashed] (amslatex11) to (latex2ε);
-	\drawshort (latex209) to (latex2ε);
-	
+	\tonode[\vip](latex2ε)(0,\layer)<June 1994: New release of LaTeX to avoid incompatible dialects of LaTeX 2.09. Introduced by the LaTeX3-Team.>{\LaTeXe};
+	\todraw*(latex209)(latex2ε)
+	\todraw[dashed](slitex)(latex2ε)
+	\todraw[dashed](amslatex11)(latex2ε)
 	\steplayer[-1.3]
-	\mynode{amslatex12}{6,\layer}{A port of version 1.1 to LaTeX 2e by Downes and Jones.}{\AMS\LaTeX 1.2}
-	\drawfull (amslatex11) to (amslatex12);
-	\drawfull (latex2ε) to (amslatex12);
-	
+
+	\tonode(amslatex12)(6,\layer)<A port of version 1.1 to LaTeX 2e by Downes and Jones.>{\AMS\LaTeX 1.2}
+	\todraw(amslatex11)(amslatex12)
+	\todraw(latex2ε)(amslatex12)
 	\steplayer[-1.5]
-	\mynode[\vip]{pdflatex}{2,\layer}{The standard LaTeX. If anyone talks about "LaTeX" it is nearly shure to be this package. pdfLaTeX2e produces pdf or dvi output.}{pdf\LaTeXe};
-	\drawfull (latex2ε) to (pdflatex);
-	\drawshort (latex2ε) to (pdflatex);
-	
-	\mynode[\vip]{xelatex}{5,\layer}{Using the XeTeX engine. There are some special packages that provide easy access to the modern features of XeTeX.}{\XeLaTeX};
-	\drawfull (latex2ε) to (xelatex);
-	\drawshort (latex2ε) to (xelatex);
+
+	\tonode[\vip](pdflatex)(2,\layer)<The standard LaTeX. If anyone talks about "LaTeX" it is nearly shure to be this package. pdfLaTeX2e produces pdf or dvi output.>{pdf\LaTeXe};
+	\todraw(latex2ε)(pdflatex)
+	\todraw'(latex2ε)(pdflatex)
 	
-	\mynode{lualatex}{-2,\layer}{LaTeX based on LuaTeX with pdf (standard) or dvi (dviLuaLaTeX) output. LaTeX support for luaTeX is under heavy development to make this machine usable with the format. Work in progress, but already well useable!}{(dvi)Lua\LaTeX};
-	\drawfull (latex2ε) to (lualatex);
+	\tonode[\vip](xelatex)(5,\layer)<Using the XeTeX engine. There are some special packages that provide easy access to the modern features of XeTeX.>{\XeLaTeX};
+	\todraw(latex2ε)(xelatex)
+	\todraw'(latex2ε)(xelatex)
 	
-	\mynode{lambda}{-5,\layer}{A LaTeX-package for the omega-engine.}{$\Lambda$}
-	\drawfull (latex209) to (lambda);
+	\tonode(lualatex)(-1.8,\layer)<LaTeX based on LuaTeX with pdf (standard) or dvi (dviLuaLaTeX) output. LaTeX support for luaTeX is under heavy development to make this machine usable with the format. Work in progress, but already well useable!>{Lua\LaTeX};
+	\todraw(latex2ε)(lualatex)
 	
-	\steplayer[-1]
-	\mynode{lamed}{-6,\layer}{A LaTeX-package for the aleph-engine.}{Lamed}
-	\drawfull (lambda) to (lamed);
+	\tonode(platex)(-4.6,\layer)<A LaTeX-bundle for the pTeX engine.>{p\LaTeXe}
+	\todraw(latex2ε)(platex)
+
+	\tonode[\experimental](lambda)(-6,\layer)<A LaTeX-package for the omega-engine.>{$\Lambda$}
+	\todraw(latex209)(lambda)
+	\steplayer[-1.5]
+
+	\tonode[\experimental](lamed)(-7.5,\layer)<A LaTeX-package for the aleph-engine.>{Lamed}
+	\todraw(lambda)(lamed)
 	
 	\steplayer[-1]
-	\mynode{latex25}{0,\layer}{Will Robertson suggested in an interview (see refs) an interim unstable version on the way to LaTeX3 with version number 2.5 that should bring package authors towards using LaTeX3 syntax. This version should be backwards incompatible to LaTeX2e. (This version does not exist in any official plannings, but I liked the idea, so it is mentioned here :) )}{\LaTeX2.5};
-	\drawfull (latex2ε) to (latex25);
-	
-	\steplayer[-2]
-	\mynode{latex3}{0,\layer}{The planned successor of LaTeX2e. It is planned to implement a very elaborate low-level programming language. The expl3-package provides an implemantation that can be used on top of LaTeX2e. Several LaTeX packages already make heavy use of expl3.}{\LaTeX{}3};
-	\drawfull (latex25) to (latex3);
-	\drawfull[dotted] (xelatex) to (latex3);
-	\drawfull[dotted] (pdflatex) to (latex3);
-	\drawfull[dotted] (lualatex) to (latex3);
+	\tonode[\experimental](latex25)(0,\layer)<Will Robertson suggested in an interview (see refs) an interim unstable version on the way to LaTeX3 with version number 2.5 that should bring package authors towards using LaTeX3 syntax. This version should be backwards incompatible to LaTeX2e. (This version does not exist in any official plannings, but I liked the idea, so it is mentioned here ;) )>{\LaTeX2.5};
+	\todraw(latex2ε)(latex25)
+	
+	\steplayer[-3]
+	\tonode[\experimental](latex3)(0,\layer)<The long-time successor of LaTeX2e. It is planned to implement a very elaborate low-level programming language. (Almost done by now.) The expl3-package provides an implemantation that can be used on top of LaTeX2e. Several LaTeX packages already make heavy use of expl3. (As does this document.)>{\LaTeX{}3};
+	\todraw(latex25)(latex3)
+	\todraw[dotted](xelatex)(latex3)
+	\todraw[dotted](pdflatex)(latex3)
+	\todraw[dotted](lualatex)(latex3)
 \end{tikzpicture}
 
-
-\newpage
-\overviewsubsection[\ConTeXt]{\ConTeXt\ (Context = con tex t – text with tex; formerly pragmatex) – the other major format and \TeX\ macro package}
+\overviewsection[\ConTeXt]{\ConTeXt\ (Context = con tex t – text with tex; formerly pragmatex)}
 %%% CONTEXT %%%
 \begin{tikzpicture}
-	\mynode{mki}{0,0}{Original ConTeXt with Dutch low level interface.}{\ConTeXt MkI};
-	\mynode[\vip]{mkii}{0,-3}{ConTeXt with English low level interface. Works with any TeX-engine, like LaTeX: TeX, e-TeX, pdfTeX, Aleph, XeTeX, ...}{\ConTeXt MkII};
-	\drawfull (mki) to (mkii);
+	\tonode(mki)(0,0)<Original ConTeXt with Dutch low level interface.>{\ConTeXt MkI};
+	\tonode[\vip](mkii)(0,-3)<ConTeXt with English low level interface. Works with any TeX-engine, like LaTeX: TeX, e-TeX, pdfTeX, Aleph, XeTeX, ...>{\ConTeXt MkII};
+	\todraw(mki)(mkii)
 	
-	\mynode{mkiii}{4,-4.5}{Reserved for future use for files supporting XeTeX. Was "skipped" for "practical reasons" (Hans Hagen)}{\ConTeXt\ MkIII};
-	\drawfull (mkii) to (mkiii);
+	\tonode(mkiii)(4,-4.5)<Reserved for future use for files supporting XeTeX. Was "skipped" for "practical reasons" (Hans Hagen)>{\ConTeXt\ MkIII};
+	\todraw(mkii)(mkiii)
 	
-	\mynode[\vip]{mkiv}{0,-6}{Specially designed for LuaTeX.}{\ConTeXt MkIV};
-	\drawfull (mkii) to (mkiv);
-	\drawshort (mkii) to (mkiv);
+	\tonode[\vip](mkiv)(0,-6)<Specially designed for LuaTeX.>{\ConTeXt MkIV};
+	\todraw*(mkii)(mkiv)
 \end{tikzpicture}
 }  %% end all stuff
 %% and set it twice, with changing from short to full version
@@ -347,233 +300,255 @@ In most cases I did not mention the authors of the programs/packages. This is no
 \ExplSyntaxNamesOff
 \typesetwholecontent
 
-\newpage
-\overviewsection{Distributions}
+\clearpage
+\part{Others}
+\overviewsection{Distributions}[\distro]
 \parbox{\textwidth}{\normalsize
-This section will feature the main distributions of \TeX\ and related programs. Of course, not every Linux Distribution’s \TeX\ package can be listed here, but only official upstream distributions. So far, only \TeX live and Mik\TeX\ are listed, but I’ll add others if they are/were important.
+This section will feature the main distributions of \TeX\ and related programs. Of course, not every Linux Distribution's \TeX\ package can be listed here, but only official upstream distributions. So far, only \TeX live and Mik\TeX\ are listed, but I'll add others if they are/were important.
 }
+
 \ExplSyntaxOn
-\dim_set:Nn\layerdist{-1.5cm}
+\fp_gset:Nn\layerdist{-1.5}
 \ExplSyntaxOff
+
 \overviewsubsection{\TeX live}
+
 \begin{tikzpicture}
-	\mynode[\distro]{teTeX}{2,\layer}{The (vague) past ... (?)}{te\TeX};
-	\mynode[\distro]{4AllTeX CD}{-2,\layer}{The (vague) past ... (?)}{4All\TeX CD };
+	\tonode(web2c)(0,\layer)<An Implementation and Distribution of TeX which translates the original WEB sources to a C code.>{Web2c}
+	\steplayer
+
+	\tonode(emtex)(3,\layer)<Eberhard Mattes TeX Distribution for MS-DOS and OS2.>{em\TeX}
+	\todraw.(web2c)(emtex)
+	\steplayer
+
+	\tonode(tetex)(3,\layer)<Maintained by Thomas Esser (hence the te in teTeX) from 1994 to May 2006.>{te\TeX}
+	\tonode(4alltexcd)(-3,\layer)<The (vague) past ... (?)>{4All\TeX CD }
+	\todraw.(web2c)(tetex)
+	\todraw.(web2c)(4alltexcd)
+	\steplayer
+
+	\tonode(fptex)(3,\layer)<A free TeX distribution for Win32 based on teTeX, by Fabrice Popineau. Still active, provides up-to-date binaries for Windows. Special support for Japanese Typesetting.>{fp\TeX}
+	\todraw(fptex)(tetex)
 	\steplayer
-	\mynode[\distro]{tlpre2009}{0,\layer}{First version 1996, and then a long story of ongoing work -- see documentation for a detailed history.}{\TeX live 1996 – 2008};
-	\draw(teTeX) to (tlpre2009);
-	\draw(4AllTeX CD) to (tlpre2009);
+
+	\tonode(xemtex)(4,\layer)<A TeX distribution for Windows, based on fpTeX with XEmacs,AucTeX as IDE for (La)TeX. XemTeX was sponsored by the French government.>{XEm\TeX}
+	\todraw(xemtex)(fptex)
+
+	\tonode(tlpre2008)(0,\layer)<First version 1996 (UNIX only, later also Windows binaries), and then a long story of ongoing work -- see the detailed documentation for a detailed history.>{\TeX live 1996 – 2007}
+	\todraw(tetex)(tlpre2008)
+	\todraw(4alltexcd)(tlpre2008)
+	\todraw.(web2c)(tlpre2008)
 	\steplayer
-	\mynode[\distro]{tl2009}{0,\layer}{TeXlive now features package updating like MikTeX!}{\TeX live2009};
-	\draw(tl2009) to (tlpre2009);
+
+	\tonode(tl2008)(0,\layer)<A new package manager and network installer are available. So installation via the net is possible as well as package updates. Missing packages are not installed on-the-fly. The last of the modern machines is added: luaTeX>{\TeX live2008}
+	\todraw.(tl2008)(tlpre2008)
 	\steplayer
-	\mynode[\distro]{tl2010}{0,\layer}{Up to now, latest release of TeXlive.}{\TeX live2010};
-	\draw(tl2010) to (tl2009);
+
+	\tonode(tl2009)(0,\layer)<Dropped Omega and Lambda. Aleph and Lamed are kept.>{\TeX live2009}
+	\todraw(tl2009)(tl2008)
+	\steplayer
+
+	\tonode(tl2010)(0,\layer)<Up to now, latest release of TeXlive.>{\TeX live2010}
+	\todraw(tl2010)(tl2009)
+
+	\tonode(tlcontrib)(5,\layer)<An extension of TeXlive that contains packages that TeXlive cannot hold because: not free, binary update, not on CTAN or intermediate release. Useable via the TeXlive manager.>{TLContrib}
+	\todraw.(tl2010)(tlcontrib)
 \end{tikzpicture}
 
 \overviewsubsection{Mik\TeX}
 \begin{tikzpicture}
-	\mynode[\distro]{mt26}{0,\layer}{featuring  pdftex 1.40.4, mpost 1.000  }{Mik\TeX\ 2.6};
+	\tonode(mt)(0,\layer)<MikTeX is a TeX distribution originally for Windows only. Copyright by Christian Schenk goes back to 2001>{Mik\TeX}
 	\steplayer
-	\mynode[\distro]{mt27}{0,\layer}{featuring  xetex 0.999.6, pdftex 1.40.9, mpost 1.005  }{Mik\TeX\ 2.7};
-	\draw(mt27) to (mt26);
+
+	\tonode(mt26)(0,\layer)<Windows only. featuring  pdftex 1.40.4, mpost 1.000>{Mik\TeX\ 2.6}
+	\todraw(mt)(mt26)
 	\steplayer
-	\mynode[\distro]{mt28}{0,\layer}{featuring  xetex 0.9995.1, pdftex 1.40.10, mpost 1.005  }{Mik\TeX\ 2.8};
-	\draw(mt28) to (mt27);
+
+	\tonode(mt27)(0,\layer)<Windows only. featuring  xetex 0.999.6, pdftex 1.40.9, mpost 1.005>{Mik\TeX\ 2.7}
+	\todraw(mt27)(mt26)
 	\steplayer
-	\mynode[\distro]{mt29}{0,\layer}{featuring xetex 0.9997.4, pdftex 1.40.11, LuaTeX 0.60.2, mpost 1.211}{Mik\TeX\ 2.9};
-	\draw(mt29) to (mt28);
+
+	\tonode(mt28)(0,\layer)<Windows only. featuring  xetex 0.9995.1, pdftex 1.40.10, mpost 1.005>{Mik\TeX\ 2.8}
+	\todraw(mt28)(mt27)
+	\steplayer
+
+	\tonode(mt29)(0,\layer)<Windows only (stable version). Beta version for GNU/Linux available. featuring xetex 0.9997.4, pdftex 1.40.11, LuaTeX 0.60.2, mpost 1.211>{Mik\TeX\ 2.9}
+	\todraw(mt29)(mt28)
+\end{tikzpicture}
+
+\overviewsubsection{W32\TeX}
+\begin{tikzpicture}
+	\tonode(w32tex)(0,\layer)<A distributon to provide binaries for windows, with special support for Japanese. First version (up to the changelog): 2009/08/02. Still highly up-to-date.>{W32\TeX}
 \end{tikzpicture}
 
 \newpage
-\overviewsection{Pandora’s Box}
+\overviewsection{Pandora's Box}[\program]
 \parbox{\textwidth}{\normalsize
-The following pages will be a hodge-podge of many things that are related to \TeX\ and used in the process of generating documents in different file formats, i.\,e. conversion tools, bibliography tools etc. Feel free to contribute, I’ll choose case-by-case if I’ll add something or won’t include it. Text editors or viewers will \emph{not} be included!
+The following pages will be a hodge-podge of many things that are related to \TeX\ and used in the process of generating documents in different file formats, i.\,e. conversion tools, bibliography tools etc. Feel free to contribute, I'll choose case-by-case if I'll add something or won't include it. Text editors or viewers will \emph{not} be included!
 }
 
 \overviewsubsection[META*]{META*}
 %%% META* %%%
 \begin{tikzpicture}
-	\mynode[\program]{metafont}{0,0}{The program for creating the fonts originally used by TeX.}{METAFONT};
+	\tonode(metafont)(0,\layer)<The program for creating the fonts originally used by TeX.>{METAFONT};
+	\steplayer
 
-	\mynode[\program]{metapost}{0,-2}{A graphic generating program inspired by METAFONT. MetaPost can produce PostScript graphics as well as SVG.}{MetaPost};
-	\draw (metapost) to (metafont);
+	\tonode(metapost)(0,\layer)<A graphic generating program inspired by METAFONT. MetaPost can produce PostScript graphics as well as SVG.>{MetaPost};
+	\todraw(metapost)(metafont)
+	\steplayer
 
-	\mynode[\program]{metafun}{0,-4}{"MetaFun is Hans Hagen's extension to (or module for) the MetaPost language."}{MetaFun};
-	\draw (metafun) to (metapost);
+	\tonode(metafun)(0,\layer)<"MetaFun is Hans Hagen's extension to (or module for) the MetaPost language.">{MetaFun};
+	\todraw(metafun)(metapost)
 \end{tikzpicture}
 
 \overviewsubsection[Bib\TeX]{Bib\TeX}
 %%% BIBTEX %%%
 \begin{tikzpicture}
-	\mynode[\program]{bibtex}{0,0}{A helper program to generate a bibliography list.}{\BibTeX};
+	\tonode(bibtex)(0,0)<A helper program to generate a bibliography list.>{\BibTeX}
+	\steplayer[-1]
 
-	\mynode[\program]{nbibtex}{4,-1}{"NbibTeX helps authors take better advantage of BibTeX data" says the homepage.}{NbibTeX};
-	\draw (nbibtex) to (bibtex);
+	\tonode(nbibtex)(4,\layer)<"NbibTeX helps authors take better advantage of BibTeX data" says the homepage.>{NbibTeX}
+	\todraw(nbibtex)(bibtex)
+	\steplayer[-0.5]
 
-	\mynode[\program]{bibtex8}{0,-2}{The documentation says: „An 8-bit Implementation of BibTeX 0.99 with a Very Large Capacity“}{\BibTeX8};
-	\draw (bibtex8) to (bibtex);
+	\tonode(bibtex8)(0,\layer)<The documentation says: "An 8-bit Implementation of BibTeX 0.99 with a Very Large Capacity">{\BibTeX8}
+	\todraw(bibtex8)(bibtex)
+	\steplayer
 	
-	\mynode[\program]{bibtexu}{0,-4}{A unicode-aware version of BibTeX}{\BibTeX u};
-	\draw (bibtex8) to (bibtexu);
+	\tonode(bibtexu)(0,\layer)<A unicode-aware version of BibTeX>{\BibTeX u}
+	\todraw(bibtex8)(bibtexu)
 
-	\mynode[\program]{pybtex}{3,-4}{A python implementation of BibTeX.}{Pybtex};
-	\draw (pybtex) to (bibtexu);
+	\tonode(pybtex)(3,\layer)<A python implementation of BibTeX.>{Pybtex}
+	\todraw(pybtex)(bibtexu)
+	\steplayer
 	
-	\mynode[\program]{biber}{0,-6}{A cooler version of unicode-aware BibTeX, designed for (?) use with BibLaTeX}{biber};
-	\draw (bibtexu) to (biber);
+	\tonode(biber)(0,\layer)<A cooler version of unicode-aware BibTeX, designed for (?) use with BibLaTeX>{biber}
+	\todraw(bibtexu)(biber)
 	
-	\mynode[\package]{biblatex}{3,-6}{A LaTeX package as frontend for biber.}{Bib\LaTeX};
-	\draw (biber) to (biblatex);
-	\draw (bibtexu) to (biblatex);
+	\tonode[\package](biblatex)(3,\layer)<A LaTeX package as frontend for biber.>{Bib\LaTeX}
+	\todraw(biber)(biblatex)
+	\todraw(bibtexu)(biblatex)
 \end{tikzpicture}
 
 %%% dvipdfm %%%
 \overviewsubsection[(x)dvipdf(m)(x)]{(x)dvipdf(m)(x)}
 \begin{tikzpicture}
-	\mynode[\program]{dvipdf}{0,0}{Converts dvi files to pdf files.}{dvipdf};
+	\tonode(dvipdf)(0,0)<Converts dvi files to pdf files.>{dvipdf};
+	\steplayer
 
-	\mynode[\program]{dvipdfm}{0,-2}{Converts dvi files to pdf files. Does not build on dvipdf, but is an independent implementation.}{dvipdfm};
+	\tonode(dvipdfm)(0,\layer)<Converts dvi files to pdf files. Does not build on dvipdf, but is an independent implementation.>{dvipdfm};
+	\steplayer
 
-	\mynode[\program]{dvipdfmx}{0,-4}{Extended version of dvipdfm. Support for multi-byte encodings and more pdfTeX features. Still active. Combined work of dvipdfm-jpn and dvipdfm-kor.}{dvipdfmx};
-	\draw (dvipdfm) to (dvipdfmx);
-	
-	\mynode[\program]{xdvipdfmx}{0,-6}{Converts xdvi files produced by XeTeX to pdf files. Normally always executed after a XeTeX run, so the user won’t notice that an xdvi document was created in between.}{xdvipdfmx};
-	
-	\draw (dvipdfmx) to (xdvipdfmx);
+	\tonode(dvipdfmx)(0,\layer)<Extended version of dvipdfm. Support for multi-byte encodings and more pdfTeX features. Still active. Combined work of dvipdfm-jpn and dvipdfm-kor.>{dvipdfmx};
+	\todraw(dvipdfm)(dvipdfmx)
+	\steplayer
 
+	\tonode(xdvipdfmx)(0,\layer)<Converts xdvi files produced by XeTeX to pdf files. Normally always executed after a XeTeX run, so the user won't notice that an xdvi document was created in between.>{xdvipdfmx};
+	\todraw(dvipdfmx)(xdvipdfmx)
 \end{tikzpicture}
 
+\overviewsubsection[Font Technologies]{Font Techonolgies}
+\parbox{\textwidth}{\normalsize
+This section tries to cover the development of font technologies – the most important thing for a typesetting system is it's font mechanism …}
+\begin{tikzpicture}
+	\tonode(bitmap)(0,\layer)<Bitmap fonts contain the shape of the letters as a number of dots. If you zoom in, a bitmap letter will show pixels.>{Bitmap fonts}
+	\steplayer[-3]
+
+	\tonode(metafont)(0,\layer)<Fonts based on the METAFONT program.>{metafont}
+	\steplayer[-3]
+
+	\tonode(type1)(-2,\layer)<Outline font. The shape of a letter is described as mathematical curves so the letter can be made arbitrarely large without getting pixeled.>{PostScript Type 1}
+	\tonode(truetype)(2,\layer)<>{TrueType}
+	\tonode(freetype)(6,\layer)<TrueType implementation for Unix.>{FreeType}
+	\todraw(freetype)(truetype)
+	\steplayer[-3]
+
+	\tonode(gx)(6,\layer)<Only available for Mac OS.>{TrueType GX}
+	\todraw(truetype)(gx)
+	\steplayer[-3]
+
+	\tonode(opentype)(-2,\layer)<Extension of TrueType font format, adding support for PostScript font data. Developed by Microsoft and Adobe.>{OpenType}
+	\todraw(truetype)(opentype)
+	\todraw(type1)(opentype)
+
+	\tonode(aat)(2,\layer)<Only available for Mac OS.>{AAT}
+	\todraw(aat)(gx)
+\end{tikzpicture}
 
 %%
-%% I've chosen to typeset the bibliography "by hand" as to avoid problems regarding formatting. And this way I only need one file.
+%% I've chosen to typeset the bibliography "by hand" for full control of formatting and behaviour. Also, I can choose my own syntax ☺
 %%
-
 \clearpage
-\normalsize
-\begin{thebibliography}{10}
+\restoregeometry
+\part{Text Views}  %% these are generated automatically by the code above. 
+\label{sec:text}
+\settextviews
+
+\appendix
+\part{Appendix}
+\section{References}
 \label{sec:refs}
+\normalsize\obeylines\flushleft  %% to get rid of the still active centering
+
+The references are in order of occurance in the above document. I.\,e. if you want information about Lua\TeX, it will be below e.\,g. $\epsilon$\TeX.
+
+	\tobibsection{Books}
+	\tobib{D.E. Knuth, D.~Bibby, and I.~Makai. The \TeX book\\ Addison-Wesley Reading, MA, 1986.}
+	\tobib{F.~Mittelbach, M.~Goossens, J.~Braams, D.~Carlisle, C.~Rowley, C.~Detig, and
+	  J.~Schrod. The \LaTeX\ companion. \\ Addison-Wesley, 2004.}
+
+	\tobibsection{Overview Articles}
+	\tobib{Arthur Reutenauer. A Brief History of \TeX. Talk at EuroBacho\TeX\ 2007.}%
+	  <http://www.gust.org.pl/bachotex/EuroBachoTeX2007/presentations/bhot.pdf/view>
+	\tobib{A Brief History of \LaTeX}<http://www.xent.com/FoRK-archive/feb98/0307.html>
+	\tobib{Short Article About Omega And Aleph}<http://www.tex.ac.uk/cgi-bin/texfaq2html?label=omegaleph>
+	\tobib{Interviews with Will Robertson, Hans Hagen et.\,al.}<http://www.tug.org/interviews>
+	
+	\tobibsection{Web Archives}
+	\tobib{CTAN – Comprehensive TeX Archive Network:}<http://www.ctan.org>
+	\tobib{Historic Archive of TeX Distributions:}<ftp://ftp.tug.org/historic>
+
+	\tobibsection{Engines (Web sources)}
+	\tobib{ANT project page}<http://ant.berlios.de>
+	\tobib{Yasuki S AITO. Report on JTEX: A Japanese TEX. TUGboat 8 (1987), no. 2, 103\,–\,116.}%
+		<http://www.tug.org/TUGboat/Articles/tb08-2/tb18saito.pdf>
+	\tobib{p\TeX sources and documentation}<http://dante.ctan.org/tex-archive/help/Catalogue/entries/ptex.html>
+	\tobib{ML\TeX\ source (CH file)}<http://www.tex.ac.uk/tex-archive/systems/generic/mltex/mltex.ch>
+	\tobib{enc\TeX\ page}<http://www.olsak.net/enctex.html>
+	\tobib{\NTS\ project page}<http://nts.tug.org>
+	\tobib{V\TeX\ – official homepage of micropress-inc}<http://www.micropress-inc.com/>	
+	\tobib{$\epsilon\chi$\TeX\ project page}<http://www.extex.org>	
+	\tobib{ee\TeX\ project page}<http://tex.aanhet.net/eetex>	
+	\tobib{Lua\TeX\ project page}<http://www.luatex.org>
+	\tobib{i\TeX\ announcement by Don Knuth at the TUG 2010}<http://river-valley.tv/tug-2010/an-earthshaking-announcement>
+	
+	\tobibsection{Formats (Web sources)}
+	\tobib{\ConTeXt\ wiki}<http://wiki.contextgarden.net>
+	\tobib{\LaTeX\ project page}<http://www.latex-project.org>
+	\tobib{\LaTeX3 project}<http://www.latex-project.org/latex3.html>
+	
+	\tobibsection{Distributions (Web sources)}
+	\tobib{fp\TeX: Announcment at TUG 1999}<http://www.tug.org/tug99/program/node39.html>
+	\tobib{\TeX live development history}<http://tug.org/texlive/doc/texlive-en/texlive-en.html>
+	\tobib{TLContrib project page}<http://tlcontrib.metatex.org/>
+	\tobib{MikTeX project page}<http://miktex.org/>
+	\tobib{Win32 project page}<http://w32tex.org/>
+
+	\tobibsection{Fonts (Web sources)}
+	\tobib{Type1 Fonts specifications}<http://partners.adobe.com/public/developer/en/font/T1_SPEC.PDF>
+	\tobib{The FreeType project}<http://freetype.org/index2.html>
+	\tobib{OpenType specifications}<http://www.microsoft.com/typography/otspec/default.htm>
+
+	\tobibsection{Original Documentation – Everything Else}
+	\tobib{dvipdfmx project page}<http://project.ktug.or.kr/dvipdfmx/>
+	
+\clearpage
+\section{List of Contributors}
+I have to thank some people for helping me to improve this document. Of course I thank all the people provinding the above-mentioned references. 
 
-	\bibitem[{Annotations}()]{}{\quad The references are in order of occurance in the above document. I.\,e. if you want information about Lua\TeX, it will be below e.\,g. $\epsilon$\TeX.}
-	\vspace{2ex}
-	\bibitem[{Books}()]{}{\LARGE\textbf{\textsf{Books}}}
-	\vspace{1ex}
-	\bibitem[Knuth et~al.(1986)Knuth, Bibby, and Makai]{knuth1986texbook}
-	D.E. Knuth, D.~Bibby, and I.~Makai.
-	\newblock \emph{{The \TeX book}}.
-	\newblock Addison-Wesley Reading, MA, 1986.
-	
-	\bibitem[Mittelbach et~al.(2004)Mittelbach, Goossens, Braams, Carlisle, Rowley,
-	  Detig, and Schrod]{mittelbach2004latex}
-	F.~Mittelbach, M.~Goossens, J.~Braams, D.~Carlisle, C.~Rowley, C.~Detig, and
-	  J.~Schrod.
-	\newblock \emph{{The \LaTeX\ companion}}.
-	\newblock Addison-Wesley, 2004.
-	
-	\vspace{2ex}
-	\bibitem[{Web}()]{}{\LARGE\textbf{\textsf{Web Sources}}}
-	\bibitem[{this document}()]{tex-overview}{This document on github}
-	\newblock \url{http://github.com/alt/tex-overview}
-
-	\vspace{1ex}
-	\bibitem[{OrigDoc}()]{}{\Large\textbf{\textsf{Original Documentation – Engines}}}
-	\vspace{1ex}
-
-	
-	\bibitem[{ANT project page}()]{ant}{ANT project page}
-	\newblock \url{http://ant.berlios.de}
-	
-	\bibitem[{ML\TeX\ source}()]{mltex}{ML\TeX\ source (CH file)}
-	\newblock \url{http://www.tex.ac.uk/tex-archive/systems/generic/mltex/mltex.ch}
-	
-	\bibitem[{enc\TeX\ page}()]{enctex}
-	{enc\TeX\ page}
-	\newblock \url{http://www.olsak.net/enctex.html}
-	
-	\bibitem[{\NTS\ project page}()]{nts}
-	{\NTS\ project page}
-	\newblock \url{http://nts.tug.org}
-	
-	\bibitem[{v\TeX}()]{vtex official}
-	{V\TeX\ – official homepage of micropress-inc}
-	\newblock \url{http://www.micropress-inc.com/}
-	
-	\bibitem[{$\epsilon\chi$\TeX\ project page}()]{extex}
-	{$\epsilon\chi$\TeX\ project page}
-	\newblock \url{http://www.extex.org}
-	
-	\bibitem[{ee\TeX\ project page}()]{eetex}
-	{ee\TeX\ project page}
-	\newblock \url{http://tex.aanhet.net/eetex}
-	
-	\bibitem[{Lua\TeX\ project page}()]{luatex}
-	{Lua\TeX\ project page}
-	\newblock \url{http://www.luatex.org}
-	
-	\vspace{2ex}
-	\bibitem[{WebMakro}()]{}{\Large\textbf{\textsf{Original Documentation – Makro Packages/Formats}}}
-	\vspace{1ex}
-	\bibitem[wiki()]{contextgarden}
-	\ConTeXt\ wiki
-	\newblock \url{http://wiki.contextgarden.net}
-	
-	\bibitem[{\LaTeX\ project page}()]{latexproject}
-	{\LaTeX\ project page}
-	\newblock \url{http://www.latex-project.org}
-	
-	\bibitem[{\LaTeX3 project}()]{latexprojectiii}
-	{\LaTeX3 project}
-	\newblock \url{http://www.latex-project.org/latex3.html}
-	
-	\vspace{2ex}
-	\bibitem[{WebDistro}()]{}{\Large\textbf{\textsf{Original Documentation – Distributions}}}
-	\vspace{1ex}
-	\bibitem[{TeXlive}()]{TeXlive}
-	{TeXlive development history}
-	\newblock \url{http://tug.org/texlive/doc/texlive-en/texlive-en.html#}
-
-	\bibitem[{MikTeX}()]{MikTeX}
-	{MikTeX project site}
-	\newblock \url{http://miktex.org/}
-
-	\vspace{2ex}
-	\bibitem[{WebMakro}()]{}{\Large\textbf{\textsf{Original Documentation – Everything Else}}}
-	\vspace{1ex}
-	\bibitem[{dvipdfmx}()]{dvipdfmx}
-	{dvipdfmx project page}
-	\newblock \url{http://project.ktug.or.kr/dvipdfmx/}
-	
-	\vspace{2ex}
-	\bibitem[{WebMakro}()]{}{\Large\textbf{\textsf{Overview Articles}}}
-	\vspace{1ex}
-	\bibitem[{A Brief History of TeX}()]{abriefhistoftex}{Arthur Reutenauer. A Brief History of \TeX.}
-	\newblock Talk at EuroBacho\TeX\ 2007.\\
-	\newblock \url{http://www.gust.org.pl/bachotex/EuroBachoTeX2007/presentations/bhot.pdf/view}
-	
-	\bibitem[{A Brief History of \LaTeX}()]{abriefhistoflatex}
-	{A Brief History of \LaTeX}
-	\newblock \url{http://www.xent.com/FoRK-archive/feb98/0307.html}
-	
-	\bibitem[{omega and aleph}()]{omegaleph}
-	{Short Article About Omega And Aleph}
-	\newblock \url{http://www.tex.ac.uk/cgi-bin/texfaq2html?label=omegaleph}
-	
-	\bibitem[{interview}()]{interviews}
-	{Interviews with Will Robertson, Hans Hagen et.\,al.}
-	\newblock \url{http://www.tug.org/interviews}
-	
-	\vspace{2ex}
-	\bibitem[{WebArchive}()]{}{\Large\textbf{\textsf{Web Archives}}}
-	\vspace{1ex}
-	
-	\bibitem[{CTAN}()]{ctan}{Comprehensive TeX Archive Network}
-	\newblock \url{http://www.ctan.org}
-	
-	\bibitem[{historic archive}()]{histarch}{Historic Archive of TeX Distributions}
-	\newblock \url{ftp://ftp.tug.org/historic}
-\end{thebibliography}
-
-\overviewsection{Text Views}  %% these are generated automatically by the code above.
-\label{sec:text}
+\begin{itemize}
+\item Paul Isambert, for usefull discussions and testing
+\item Heiko Oberdiek, for solving a bug that broke the document with Acrobat Reader
+\end{itemize}
 \end{document}