%%% Rd.sty ... Style for printing the R manual
%%%
%%% Modified 1998/01/05 by Friedrich.Leisch@ci.tuwien.ac.at
%%% Modified 1998/07/07 by Martin Maechler
%%% Modified 1999/11/20 by Brian Ripley
%%% Modified 1999/12/26 by Kurt Hornik

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{Rd}{}

\RequirePackage{ifthen}
\newboolean{Rd@has@ae}
\newboolean{Rd@use@ae}
\newboolean{Rd@use@hyper}
\DeclareOption{ae}{\setboolean{Rd@use@ae}{true}}
\DeclareOption{hyper}{\setboolean{Rd@use@hyper}{true}}
\ProcessOptions
\RequirePackage{longtable}
\setcounter{LTchunksize}{250}
\ifthenelse{\boolean{Rd@use@hyper}}
{\IfFileExists{hyperref.sty}{}{\setboolean{Rd@use@hyper}{false}
  \message{package hyperref not found}}}
{}

\RequirePackage{bm}              % standard boldsymbol
\RequirePackage{alltt}           % {verbatim} allowing \..
\RequirePackage{verbatim}        % small example code
\RequirePackage{url}             % set urls

%% See 'upquote.sty' for details.
%% We use \pkg{verbatim} for our ExampleCode environment, which in its
%% \verbatim@font has an explicit \let\do\do@noligs\verbatim@nolig@list
%% rather than (the identical) \@noligs from the LaTeX2e kernel.
%% Hence, we add to \verbatim@font ... suggestion by Bernd Raichle
%% <raichle@Informatik.Uni-Stuttgart.DE>.
\RequirePackage{upquote}
\g@addto@macro\verbatim@font\@noligs

\addtolength{\textheight}{12mm}
\addtolength{\topmargin}{-9mm}   % still fits on US paper
\addtolength{\textwidth}{24mm}   % still fits on US paper
\setlength{\oddsidemargin}{10mm}
\setlength{\evensidemargin}{\oddsidemargin}

\newlength{\middle}
\setlength{\middle}{\textwidth}
\addtolength{\middle}{-2.25in}
\addtolength{\middle}{-4pt}

\newenvironment{display}[0]%
  {\begin{list}{}{\setlength{\leftmargin}{30pt}}\item}%
  {\end{list}}
\newcommand{\HTML}{{\normalfont\textsc{html}}}
\newcommand{\R}{{\normalfont\textsf{R}}{}}
\newcommand{\Rdash}{-}

\def\href#1#2{\special{html:<a href="#1">}{#2}\special{html:</a>}}

\newcommand{\vneed}[1]{%
  \penalty-1000\vskip#1 plus 10pt minus #1\penalty-1000\vspace{-#1}}

\newcommand{\Rdcontents}[1]{% modified \tableofcontents -- not \chapter
\section*{{#1}\@mkboth{\MakeUppercase#1}{\MakeUppercase#1}}
  \@starttoc{toc}}

\newcommand{\Header}[2]{%
  \vneed{1ex}
  \markboth{#1}{#1}
  \noindent
  \nopagebreak
  \begin{center}
  \ifthenelse{\boolean{Rd@use@hyper}}%
    {\def\@currentHref{page.\thepage}
    \hypertarget{Rfn.#1}{\index{#1@\texttt{#1}}}%
    \myaddcontentsline{toc}{subsection}{#1}%
    \pdfbookmark[1]{#1}{Rfn.#1}}
    {\addcontentsline{toc}{subsection}{#1}
      \index{#1@\texttt{#1}|textbf}}
    \hrule
    \parbox{0.95\textwidth}{%
      \begin{ldescription}[1.5in]
       \item[\texttt{#1}] \emph{#2}
      \end{ldescription}}
    \hrule
  \end{center}
  \nopagebreak}
%
%
\ifthenelse{\boolean{Rd@use@hyper}}
{\newcommand{\Link}[1]{\hyperlink{Rfn.#1}{#1}\index{#1@\texttt{#1}|textit}}}
{\newcommand{\Link}[1]{#1\index{#1@\texttt{#1}|textit}}}
%
% \alias{<alias>}{<header>}
\ifthenelse{\boolean{Rd@use@hyper}}
{\newcommand{\alias}[2]{\hypertarget{Rfn.#1}{\index{#1@\texttt{#1} \textit{(\texttt{#2})}}}}}
{\newcommand{\alias}[2]{\index{#1@\texttt{#1} \textit{(\texttt{#2})}}}}
\ifthenelse{\boolean{Rd@use@hyper}}
{\newcommand{\methalias}[2]{\hypertarget{Rfn.#1}{\relax}}}
{\newcommand{\methalias}[2]{}}
% \keyword{<topic>}{<header>}
\newcommand{\keyword}[2]{\index{$*$Topic{\large\ \textbf{#1}}!#2@\texttt{#2}}}
%
\newcommand{\Itemize}[1]{\begin{itemize}{#1}\end{itemize}}
\newcommand{\Enumerate}[1]{\begin{enumerate}{#1}\end{enumerate}}
\newcommand{\describe}[1]{\begin{description}{#1}\end{description}}

\newcommand{\Tabular}[2]{%
  \par\begin{longtable}{#1}
    #2
  \end{longtable}}

\newlength{\ldescriptionwidth}
\newcommand{\ldescriptionlabel}[1]{%
  \settowidth{\ldescriptionwidth}{{#1}}%
  \ifdim\ldescriptionwidth>\labelwidth
    {\parbox[b]{\labelwidth}%
      {\makebox[0pt][l]{#1}\\[1pt]\makebox{}}}%
  \else
    \makebox[\labelwidth][l]{{#1}}%
  \fi
  \hfil\relax}
\newenvironment{ldescription}[1][1in]%
  {\begin{list}{}%
    {\setlength{\labelwidth}{#1}%
      \setlength{\leftmargin}{\labelwidth}%
      \addtolength{\leftmargin}{\labelsep}%
      \renewcommand{\makelabel}{\ldescriptionlabel}}}%
  {\end{list}}

\newenvironment{Rdsection}[1]{%
  \ifx\@empty#1\else\subsubsection*{#1}\fi
  \begin{list}{}{\setlength{\leftmargin}{0.25in}}\item}
  {\end{list}}

\newenvironment{Arguments}{%
  \begin{Rdsection}{Arguments}}{\end{Rdsection}}
\newenvironment{Author}{%
  \begin{Rdsection}{Author(s)}}{\end{Rdsection}}
\newenvironment{Description}{%
  \begin{Rdsection}{Description}}{\end{Rdsection}}
\newenvironment{Details}{%
  \begin{Rdsection}{Details}}{\end{Rdsection}}
\newenvironment{Examples}{%
  \begin{Rdsection}{Examples}}{\end{Rdsection}}
\newenvironment{Note}{%
  \begin{Rdsection}{Note}}{\end{Rdsection}}
\newenvironment{References}{%
  \begin{Rdsection}{References}}{\end{Rdsection}}
\newenvironment{SeeAlso}{%
  \begin{Rdsection}{See Also}}{\end{Rdsection}}
\newenvironment{Format}{%
  \begin{Rdsection}{Format}}{\end{Rdsection}}
\newenvironment{Source}{%
  \begin{Rdsection}{Source}}{\end{Rdsection}}
\newenvironment{Section}[1]{%
  \begin{Rdsection}{#1}}{\end{Rdsection}}
\newenvironment{Usage}{%
  \begin{Rdsection}{Usage}}{\end{Rdsection}}
\newenvironment{Value}{%
  \begin{Rdsection}{Value}}{\end{Rdsection}}

\newenvironment{ExampleCode}{\small\verbatim}{\endverbatim}

\ifx\textbackslash\undefined%-- e.g. for MM
  \newcommand{\bsl}{\ifmmode\backslash\else$\backslash$\fi}
\else
  \newcommand{\bsl}{\ifmmode\backslash\else\textbackslash\fi}
\fi
%fails for index (but is not used there...)
\newcommand{\SIs}{\relax\ifmmode\leftarrow\else$\leftarrow$\fi}
\newcommand{\SIIs}{\relax\ifmmode<\leftarrow\else$<\leftarrow$\fi}
\newcommand{\Sbecomes}{\relax\ifmmode\rightarrow\else$\rightarrow$\fi}
%
\newcommand{\deqn}[2]{\[#1\]}
\newcommand{\eqn}[2]{$#1$}
\newcommand{\bold}[1]{\ifmmode\bm{#1}\else\textbf{#1}\fi}
\newcommand{\file}[1]{`\textsf{#1}'}

\ifthenelse{\boolean{Rd@use@hyper}}
{\newcommand{\link}[1]{\hyperlink{Rfn.#1}{#1}\index{#1@\texttt{#1}}}}
{\newcommand{\link}[1]{#1\index{#1@\texttt{#1}}}}

\newcommand{\email}[1]{$\langle${#1}$\rangle$}

%% \code without `-' ligatures
{\catcode`\-=\active%
  \global\def\code{\bgroup%
    \catcode`\-=\active \let-\codedash%
    \Rd@code}}
\def\codedash{-\discretionary{}{}{}}
\def\Rd@code#1{\texttt{#1}\egroup}

\def\AsIs{\bgroup\let\do\@makeother\Rd@AsIs@dospecials\Rd@AsIsX}
\def\Rd@AsIs@dospecials{\do\$\do\&\do\#\do\^\do\_\do\%\do\~}
\def\Rd@AsIsX#1{\normalfont #1\egroup}
\let\command=\code
\let\env=\code

\newcommand\samp{`\bgroup\@noligs\@sampx}
\def\@sampx#1{{\normalfont\texttt{#1}}\egroup'}
\let\option=\samp

\newcommand{\var}[1]{{\normalfont\textsl{#1}}}

\newcommand{\dfn}[1]{\textsl{#1}}
\let\Cite=\dfn

\newcommand{\acronym}[1]{\textsc{\lowercase{#1}}}
\newcommand{\kbd}[1]{\texttt{\textsl{#1}}}

\newcommand{\strong}[1]{{\normalfont\fontseries{b}\selectfont #1}}
\let\pkg=\strong

\newcommand{\sQuote}[1]{`#1'}
\newcommand{\dQuote}[1]{``#1''}

\IfFileExists{ae.sty}{\setboolean{Rd@has@ae}{true}}{}
\ifthenelse{\boolean{Rd@use@ae}\and\boolean{Rd@has@ae}}{%
  \usepackage[T1]{fontenc}
  \usepackage{ae}
  \input{t1aett.fd}
  \DeclareFontShape{T1}{aett}{bx}{n}{<->ssub*aett/m/n}{}}
  {\message{NOT loading ae}}

\ifthenelse{\boolean{Rd@use@hyper}}{%
  \RequirePackage{color}
  \definecolor{Blue}{rgb}{0,0,0.8}
  \definecolor{Red}{rgb}{0.7,0,0}

  \def\myaddcontentsline#1#2#3{%
    \addtocontents{#1}{\protect\contentsline{#2}{#3}{\thepage}{page.\thepage}}}
  \RequirePackage{hyperref}
  \renewcommand\tableofcontents{%
    \if@twocolumn
      \@restonecoltrue\onecolumn
    \else
      \@restonecolfalse
    \fi
    \chapter*{\contentsname
        \@mkboth{%
           \MakeUppercase\contentsname}{\MakeUppercase\contentsname}}%
    \pdfbookmark{Contents}{contents}
    \@starttoc{toc}%
    \if@restonecol\twocolumn\fi
    }
  \renewenvironment{theindex}
  {\if@twocolumn
    \@restonecolfalse
    \else
    \@restonecoltrue
    \fi
    \columnseprule \z@
    \columnsep 35\p@
    \twocolumn[\@makeschapterhead{\indexname}]%
    \@mkboth{\MakeUppercase\indexname}%
    {\MakeUppercase\indexname}%
    \pdfbookmark{Index}{index}
    \myaddcontentsline{toc}{chapter}{Index}
    \thispagestyle{plain}\parindent\z@
    \parskip\z@ \@plus .3\p@\relax
    \raggedright
    \let\item\@idxitem}
  {\if@restonecol\onecolumn\else\clearpage\fi}
  }{
  \renewenvironment{theindex}
  {\if@twocolumn
    \@restonecolfalse
    \else
    \@restonecoltrue
    \fi
    \columnseprule \z@
    \columnsep 35\p@
    \twocolumn[\@makeschapterhead{\indexname}]%
    \@mkboth{\MakeUppercase\indexname}%
    {\MakeUppercase\indexname}%
    \addcontentsline{toc}{chapter}{Index}
    \thispagestyle{plain}\parindent\z@
    \parskip\z@ \@plus .3\p@\relax
    \raggedright
    \let\item\@idxitem}
  {\if@restonecol\onecolumn\else\clearpage\fi}
  }


\InputIfFileExists{Rd.cfg}{%
  \typeout{Reading personal defaults ...}}{}
