> the class looked very simple, like Point, and the diagram looked machine generated, but it was just a list of key/value pairs

It's not a class diagram. It's a try to create an overview of all possible Moose attributes for this doc:

http://search.cpan.org/~flora/Moose-2.0007/lib/Moose/Manual/Attributes.pod#___top

Cause in there docs you can't see them all on a single page. And on my diagram you can + a code snippet + some notes.

-------------------------------------------------------------------------------------------------------

> pdf not required, so I reiterate, you should post code :)

The pdf was typeset in LaTeX, using Tikz. You can get the source here:

The real file extension is .tex

FWIW, SumatraPDF doesn't show any + to click or anything like that ;) I stick by my statement, you should post here

1. How to add email notifications for new messages on Perlmonks? I can't find it.

> doesn't show any + to click or anything like that

Where should this + sign lead? Can you draw some picture in paint, so I could see, what you expect to see?

---------------------------------------------------------------------------------------------------

> I stick by my statement, you should post here

I am willing to post, but I have nothing more, then a tex file, that I gave you. Ok, but it's big:

\documentclass{article}
\usepackage[a3paper]{geometry}
\usepackage[cm]{fullpage}
\usepackage[utf8]{inputenc}
\usepackage{listings}
\usepackage{verbatim}
\usepackage[english]{babel}
\usepackage{tikz}
\usetikzlibrary{shapes,arrows,backgrounds,calc}
\begin{document}
\begin{tikzpicture}
%{{{ tikz styles
  \tikzset{
    header/.style={ellipse, draw=black, top color=white, bottom color=
+yellow!50,thick, inner sep=3mm, minimum size=3em, text centered, doub
+le, anchor=west},
    pointer/.style = {signal, signal to=east, anchor=west},
    mnemonic-block/.style={rectangle, anchor=west, inner sep=3mm},
    line/.style = {draw},
    comment/.style = {rectangle, rounded corners, draw, inner sep=3mm,
+ anchor=west, text width = 8cm, node distance=1.5cm},
  }
%}}}
\matrix[nodes={draw}, row  sep=5mm,
    column sep=2mm,minimum width=.875cm, minimum height=1cm]
{
\node [header] (1_1) {Moose Attributes};\\\node [pointer] (2_1) {read-
+write / read only}; & 
    \node [mnemonic-block] (2_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {is => 'rw'}
has 'attr' => {is => 'ro'}
\end{lstlisting}};\\\node [pointer] (3_1) {Accessor methods}; & 
    \node [mnemonic-block] (3_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {reader => 'get_attr',}
has 'attr' => {writer => 'set_attr',}
\end{lstlisting}};\\\node [pointer] (4_1) {Predicate method}; & 
    \node [mnemonic-block] (4_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {predicate => 'has_attr'}
\end{lstlisting}
        }; & 
    \node [comment] (4_3) {Tells you whether or not a given attribute 
+is currently set};\\\node [pointer] (5_1) {Cleaner method}; & 
    \node [mnemonic-block] (5_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {cleaner => 'clean_attr'}
\end{lstlisting}}; & 
    \node [comment] (5_3) {Unsets the attribute};\\\node [pointer] (6_
+1) {Required}; & 
    \node [mnemonic-block] (6_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {required => 1}
\end{lstlisting}};\\\node [pointer] (7_1) {Lazy}; & 
    \node [mnemonic-block] (7_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {lazy => 1}
\end{lstlisting}
        }; & 
    \node [comment] (7_3) {When lazy is true, the default is not gener
+ated until the reader method is called};\\\node [pointer] (8_1) {Cons
+tructor parameters}; & 
    \node [mnemonic-block] (8_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {init_arg => 'new_name'}
\end{lstlisting}
    }; & 
    \node [comment] (8_3) {
        Use a different name for the constructor parameter for this at
+tribute.
    };\\\node [pointer] (9_1) {Weak references}; & 
    \node [mnemonic-block] (9_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {weak_ref => 1}
\end{lstlisting}
    }; & 
    \node [comment] (9_3) {
        If you set the weak\_ref option to a true value, then it will 
+call Scalar::Util::weaken whenever the attribute is set
    };\\\node [pointer] (10_1) {Trigger}; & 
    \node [mnemonic-block] (10_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {trigger => \&attr_set}
\end{lstlisting}
    }; & 
    \node [comment] (10_3) {subroutine that is called whenever the att
+ribute is set};\\\node [pointer] (11_1) {Attribute type}; & 
    \node [mnemonic-block] (11_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {isa => 'Str',}
has 'attr' => {isa => 'MyApp::Weapon',}
\end{lstlisting}
    };\\\node [pointer] (12_1) {Documentation}; & 
    \node [mnemonic-block] (12_2) {\begin{lstlisting}[language=Perl]
has 'attr' => {documentation => q{Some text}}
\end{lstlisting}
        };\\
};
\draw[line] (1_1.west) --++ (-5mm, 0) |- (2_1.west) --++ (-5mm, 0) |- 
+(3_1.west) --++ (-5mm, 0) |- (4_1.west) --++ (-5mm, 0) |- (5_1.west) 
+--++ (-5mm, 0) |- (6_1.west) --++ (-5mm, 0) |- (7_1.west) --++ (-5mm,
+ 0) |- (8_1.west) --++ (-5mm, 0) |- (9_1.west) --++ (-5mm, 0) |- (10_
+1.west) --++ (-5mm, 0) |- (11_1.west) --++ (-5mm, 0) |- (12_1.west);\
+draw[line] (2_1.east) -- (2_2.west);\draw[line] (3_1.east) -- (3_2.we
+st);\draw[line] (4_1.east) -- (4_2.west);\draw[line] (4_2.east) -- (4
+_3.west);\draw[line] (5_1.east) -- (5_2.west);\draw[line] (5_2.east) 
+-- (5_3.west);\draw[line] (6_1.east) -- (6_2.west);\draw[line] (7_1.e
+ast) -- (7_2.west);\draw[line] (7_2.east) -- (7_3.west);\draw[line] (
+8_1.east) -- (8_2.west);\draw[line] (8_2.east) -- (8_3.west);\draw[li
+ne] (9_1.east) -- (9_2.west);\draw[line] (9_2.east) -- (9_3.west);\dr
+aw[line] (10_1.east) -- (10_2.west);\draw[line] (10_2.east) -- (10_3.
+west);\draw[line] (11_1.east) -- (11_2.west);\draw[line] (12_1.east) 
+-- (12_2.west);
\end{tikzpicture}
\end{document}
[download]