cpython/Doc/myformat.sty

%
% myformat.sty for the Python doc  [updated to work with Latex2e]
%

\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{myformat}
             [1998/01/11 $Revision$
                 LaTeX package (Python manual markup)]

% Increase printable page size (copied from fullpage.sty)
\topmargin 0pt
\advance \topmargin by -\headheight
\advance \topmargin by -\headsep

\textheight 8.9in

\oddsidemargin 0pt
\evensidemargin \oddsidemargin
\marginparwidth 0.5in

\textwidth 6.5in

% Style parameters and macros used by most documents here
\raggedbottom
\sloppy
\parindent =       0mm
\parskip =         2mm

% old code font selections:
\let\codefont=\tt
\let\sectcodefont=\tt

% (Haven't found a new one that gets <, >, and _ right without being
% monospaced.)

% Variable used by begin code command
\newlength{\codewidth}

% Command to start a code block (follow this by \begin{verbatim})
\newcommand{\bcode}{
	% Calculate the text width for the minipage:
	\setlength{\codewidth}{\linewidth}
	\addtolength{\codewidth}{-\parindent}
	%
	\par
	\vspace{3mm}
	\indent
	\begin{minipage}[t]{\codewidth}
}

% Command to end a code block (precede this by \end{verbatim})
\newcommand{\ecode}{
	\end{minipage}
	\vspace{3mm}
	\par
	\noindent
}

% Underscore hack (only act like subscript operator if in math mode)
%
% The following is due to Mark Wooding (the old version didn't work with
% Latex 2e.

\DeclareRobustCommand\hackscore{%
  \ifmmode_\else\textunderscore\fi%
}
\begingroup
\catcode`\_\active
\def\next{%
  \AtBeginDocument{\catcode`\_\active\def_{\hackscore{}}}%
}
\expandafter\endgroup\next

%
% This is the old hack, which didn't work with 2e.  
% If you're still using Latex 2.09, you can give it a try if the above fails.
%
%\def\_{\ifnum\fam=\ttfamily \char'137\else{\tt\char'137}\fi}
%\catcode`\_=12
%\catcode`\_=\active\def_{\ifnum\fam=\ttfamily \char'137 \else{\tt\char'137}\fi}


%%  Lots of index-entry generation support.

% Command to wrap around stuff that refers to function/module/attribute names
% in the index.  Default behavior: like \code{}.  To just keep the index
% entries in the roman font, uncomment the second definition to use instead;
% it matches O'Reilly style more.
\newcommand{\idxcode}[1]{\codefont{#1}}
%\renewcommand{\idxcode}[1]{#1}

% Command to generate two index entries (using subentries)
\newcommand{\indexii}[2]{\index{#1!#2}\index{#2!#1}}

% And three entries (using only one level of subentries)
\newcommand{\indexiii}[3]{\index{#1!#2 #3}\index{#2!#3, #1}\index{#3!#1 #2}}

% And four (again, using only one level of subentries)
\newcommand{\indexiv}[4]{
\index{#1!#2 #3 #4}
\index{#2!#3 #4, #1}
\index{#3!#4, #1 #2}
\index{#4!#1 #2 #3}
}

% Command to generate a reference to a function, statement, keyword, operator
\newcommand{\stindex}[1]{\indexii{statement}{#1@{\idxcode{#1}}}}
\newcommand{\opindex}[1]{\indexii{operator}{#1@{\idxcode{#1}}}}
\newcommand{\exindex}[1]{\indexii{exception}{#1@{\idxcode{#1}}}}
\newcommand{\obindex}[1]{\indexii{object}{#1}}
\newcommand{\bifuncindex}[1]{\index{#1@{\idxcode{#1}} (built-in function)}}

% Add an index entry for a module
\newcommand{\refmodule}[2]{\index{#1@{\idxcode{#1}} (#2module)}}
\newcommand{\refmodindex}[1]{\refmodule{#1}{}}
\newcommand{\refbimodindex}[1]{\refmodule{#1}{built-in }}
\newcommand{\refstmodindex}[1]{\refmodule{#1}{standard }}

% support for the module index
\newwrite\modindexfile
\openout\modindexfile=modules.idx

% Add the defining entry for a module
\newcommand{\defmodindex}[2]{%
  \index{#1@{\idxcode{#1}} (#2module)|textbf}%
  \write\modindexfile{#1 \thepage}}
\newcommand{\modindex}[1]{\defmodindex{#1}{}}
\newcommand{\bimodindex}[1]{\defmodindex{#1}{built-in }}
\newcommand{\stmodindex}[1]{\defmodindex{#1}{standard }}

% Additional string for an index entry
\newcommand{\indexsubitem}{}
\newcommand{\setindexsubitem}[1]{\renewcommand{\indexsubitem}{#1}}
\newcommand{\ttindex}[1]{\index{#1@{\idxcode{#1}} \indexsubitem}}


% from user-level, fulllineitems should be called as an environment
\def\fulllineitems{\list{}{\labelwidth \leftmargin \labelsep 0pt
\rightmargin 0pt \topsep -\parskip \partopsep \parskip
\itemsep -\parsep
\let\makelabel\itemnewline}}
\let\endfulllineitems\endlist


% cfuncdesc should be called as
% \begin{cfuncdesc}{type}{name}{arglist}
% ... description ...
% \end{cfuncdesc}
\newcommand{\cfuncline}[3]{\item[\code{#1 #2(\varvars{#3})}]\ttindex{#2}}
\newcommand{\cfuncdesc}[3]{\fulllineitems\cfuncline{#1}{#2}{#3}}
\let\endcfuncdesc\endfulllineitems

\newcommand{\cvarline}[2]{\item[\code{#1 #2}]\ttindex{#2}}
\newcommand{\cvardesc}[2]{\fulllineitems\cvarline{#1}{#2}}
\let\endcvardesc\endfulllineitems

\newcommand{\ctypeline}[1]{\item[\code{#1}]\ttindex{#1}}
\newcommand{\ctypedesc}[1]{\fulllineitems\ctypeline{#1}}
\let\endctypedesc\endfulllineitems

% funcdesc should be called as an \begin{funcdesc} ... \end{funcdesc}
\newcommand{\funcline}[2]{\item[\code{#1(\varvars{#2})}]\ttindex{#1}}
\newcommand{\funcdesc}[2]{\fulllineitems\funcline{#1}{#2}}
\let\endfuncdesc\endfulllineitems
\newcommand{\optional}[1]{{\textnormal{\Large[}}{#1}\hspace{0.5mm}{\textnormal{\Large]}} }


% same for excdesc
\newcommand{\excline}[1]{\item[\code{#1}]\ttindex{#1}}
\newcommand{\excdesc}[1]{\fulllineitems\excline{#1}}
\let\endexcdesc\endfulllineitems

% same for datadesc
\newcommand{\dataline}[1]{\item[\code{#1}]\ttindex{#1}}
\newcommand{\datadesc}[1]{\fulllineitems\dataline{#1}}
\let\enddatadesc\endfulllineitems


% opcodedesc should be called as an \begin{opcodedesc} ... \end{opcodedesc}
\newcommand{\opcodeline}[2]{\item[\code{#1\quad\varvars{#2}}]\ttindex{#1}}
\newcommand{\opcodedesc}[2]{\fulllineitems\opcodeline{#1}{#2}}
\let\endopcodedesc\endfulllineitems


\let\nodename=\label

%% For these commands, use \command{} to get the typography right, not
%% {\command}.  This works better with the texinfo translation.
\newcommand{\ABC}{{\sc abc}}
\newcommand{\UNIX}{{\sc Unix}}
\newcommand{\POSIX}{POSIX}
\newcommand{\ASCII}{{\sc ascii}}
\newcommand{\Cpp}{C\protect\raisebox{.18ex}{++}}
\newcommand{\C}{C}
\newcommand{\EOF}{{\sc eof}}
\newcommand{\NULL}{\code{NULL}}

% code is the most difficult one...
\newcommand{\code}[1]{{\@vobeyspaces\@noligs\def\{{\char`\{}\def\}{\char`\}}\def\~{\char`\~}\def\^{\char`\^}\def\e{\char`\\}\def\${\char`\$}\def\#{\char`\#}\def\&{\char`\&}\def\%{\char`\%}%
\mbox{\codefont{#1}}}}

\newcommand{\kbd}[1]{\mbox{\tt #1}}
\newcommand{\key}[1]{\mbox{\tt #1}}
\newcommand{\samp}[1]{\mbox{`\code{#1}'}}
% This weird definition of \var{} allows it to always appear in roman italics,
% and won't get funky in code fragments when we play around with fonts.
\newcommand{\var}[1]{\mbox{\textrm{\textit{#1\/}}}}
\newcommand{\dfn}[1]{{\em #1\/}}
\renewcommand{\emph}[1]{{\em #1\/}}
\newcommand{\strong}[1]{{\bf #1}}
% let's experiment with a new font:
\newcommand{\file}[1]{\mbox{`\textsf{#1}'}}

\newcommand{\varvars}[1]{{\def\,{\/{\char`\,}}\var{#1}}}

\newif\iftexi\texifalse
\newif\iflatex\latextrue

% Proposed new macros:  These should be used for all references to identifiers
% which are used to refer to instances of specific language constructs.  See
% the names for specific semantic assignments.
%
% For now, don't do anything really fancy with them; just use them as logical
% markup.  This might change in the future.
%
\let\module=\code
\let\keyword=\code
\let\exception=\code
\let\class=\code
\let\function=\code
\let\cfunction=\code
\let\method=\code

% constants defined in Python modules, not language constants:
\let\constant=\code

\newcommand{\manpage}[2]{{\emph{#1}(#2)}}
\newcommand{\rfc}[1]{RFC #1\index{RFC!RFC #1}}
\let\email=\code
\let\url=\code


\newenvironment{tableii}[4]{\begin{center}\def\lineii##1##2{\csname#2\endcsname{##1}&##2\\}\begin{tabular}{#1}\hline#3&#4\\
\hline}{\hline\end{tabular}\end{center}}

\newenvironment{tableiii}[5]{\begin{center}\def\lineiii##1##2##3{\csname#2\endcsname{##1}&##2&##3\\}\begin{tabular}{#1}\hline#3&#4&#5\\
\hline}{\hline\end{tabular}\end{center}}

\newcommand{\itemnewline}[1]{\@tempdima\linewidth
\advance\@tempdima \leftmargin\makebox[\@tempdima][l]{#1}}

\newcommand{\sectcode}[1]{{\sectcodefont{#1}}}

% Cross-referencing (AMK)
% Sample usage:
%  \begin{seealso}
%    \seemodule{rand}{Uniform random number generator}; % Module xref
%    \seetext{{\em Encyclopedia Britannica}}.                  % Ref to a book
%  \end{seealso}

\newenvironment{seealso}[0]{{\bf See Also:}\par}{\par}
\newcommand{\seemodule}[2]{\ref{module-#1}: \module{#1}\quad(#2)}
\newcommand{\seetext}[1]{\par{#1}}

% Fix the theindex environment to add an entry to the Table of Contents;
% this is much nicer than just having to jump to the end of the book and
% flip around, especially with multiple indexes.
%
\let\OldTheindex=\theindex
\renewcommand{\theindex}{%
  \OldTheindex%
  \addcontentsline{toc}{chapter}{\indexname}%
}

%  Use a similar trick to catch the end of the {abstract} environment,
%  but here make sure the abstract is followed by a blank page if the
% 'openright' option is used.
%
\let\OldEndAbstract=\endabstract
\renewcommand{\endabstract}{
  \if@openright
    \ifodd\value{page}
      \typeout{Adding blank page after the abstract.}
      \vfil\pagebreak
    \fi
  \fi
  \OldEndAbstract
}

% \mytableofcontents wraps the \tableofcontents macro with all the magic to
% get the spacing right and have the right number of pages if the 'openright'
% option has been used.  This eliminates a fair amount of crud in the
% individual document files.
%
\let\OldTableofcontents=\tableofcontents
\renewcommand{\tableofcontents}[0]{%
  \setcounter{page}{1}%
  \pagebreak%
  \pagestyle{plain}%
  {%
  \parskip = 0mm%
  \OldTableofcontents%
  \if@openright%
    \ifodd\value{page}%
      \typeout{Adding blank page after the table of contents.}%
      \pagebreak\hspace{0pt}%
    \fi%
  \fi%
  }%
  \pagebreak%
}

% Allow the release number to be specified independently of the \date{}.  This
% allows the date to reflect the document's date and release to specify the
% Python release that is documented.
\newcommand{\@release}{}
\newcommand{\version}{}
\newcommand{\releasename}{Release}
\newcommand{\release}[1]{%
  \renewcommand{\@release}{\releasename\space\version}%
  \renewcommand{\version}{#1}%
}

% Allow specification of the author's address separately from the author's
% name.  This can be used to format them differently, which is a good thing.
\newcommand{\@authoraddress}{}
\newcommand{\authoraddress}[1]{\renewcommand{\@authoraddress}{#1}}

% Change the title page to look a bit better, and fit in with the fncychap
% ``Bjarne'' style a bit better.
\renewcommand{\maketitle}{\begin{titlepage}%
  \let\footnotesize\small
  \let\footnoterule\relax
  \@ifundefined{ChTitleVar}{}{%
    \mghrulefill{\RW}}%
  \begin{flushright}%
    {\huge \@title \par}%
    {\em\LARGE \@release \par}
    \vfill
    {\LARGE \@author \par}
    \vfill\vfill
    {\large
     \@date \par
     \vskip 3em
     \@authoraddress \par
    }%
  \end{flushright}%\par
  \@thanks
  \end{titlepage}%
  \setcounter{footnote}{0}%
  \let\thanks\relax\let\maketitle\relax
  \gdef\@thanks{}\gdef\@author{}\gdef\@title{}
}

% ``minitoc'' support; works fairly well but not all chapters do well with it.
% Has some weird side effects that I haven't tracked down; don't use it for
% real at this time.
%
% To enable, uncomment the following line only:
%\RequirePackage{minitoc}

% Leave the rest as-is:
\newif\if@minitocprinted
\newcommand{\suppressminitoc}{\@minitocprintedtrue}
\@ifundefined{minitoc}{
  % allow \minitoc to be used even if the package hasn't been loaded.
  \newcommand{\minitoc}{\@minitocprintedtrue}
}{
  \dominitoc
  \newif\if@firstsection
  \let\OldChapter=\chapter
  \let\OldSection=\section
  \let\OldMinitoc=\minitoc
  % This will only include the minitoc once per chapter
  \renewcommand{\minitoc}{%
    \if@minitocprinted{}\else%
      \OldMinitoc%
      \@minitocprintedtrue%
    \fi%
  }
  % This includes a minitoc before the first \section{}, if it hasn't
  % already been printed using an explicit \minitoc call.
  \newcommand{\NewSection}[1]{%
    \if@firstsection%
      \if@minitocprinted{}\else%
        \vskip 15pt%
        \minitoc%
        \@firstsectionfalse%
      \fi%
    \fi%
    \OldSection{#1}%
  }
  % Reset the flags for each chaper to let the automatic stuff work.
  \newcommand{\NewChapter}[1]{%
    \OldChapter{#1}%
    \@firstsectiontrue%
    \@minitocprintedfalse%
  }
  \let\chapter=\NewChapter
  \let\section=\NewSection
  \typeout{Including mini Tables of Contents in each chapter.}
}

% This sets up the fancy chapter headings that make the documents look at
% least a little better than the usual LaTeX output.
%
\RequirePackage[Bjarne]{fncychap}
\@ifundefined{ChTitleVar}{}{
  \ChTitleVar{\raggedleft \rm\Huge}
  % This creates chapter heads without the leading \vspace*{}:
  \def\@makechapterhead#1{%
    {\parindent \z@ \raggedright \normalfont
      \ifnum \c@secnumdepth >\m@ne
        \DOCH
      \fi
      \interlinepenalty\@M
      \DOTI{#1}
    }
  }
  \typeout{Using fancy chapter headings.}
}

% Uncomment the following line to use a PostScript font instead of bitmaps:
%\RequirePackage{times}\typeout{Using times fonts instead of Computer Modern.}