cpython/Doc/texinputs/python.sty

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%
% python.sty for the Python docummentation [works only with with Latex2e]
%
\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{python}
[1998/01/11 LaTeX package (Python markup)]
% for PDF output, use maximal compression & a lot of other stuff
% (test for PDF recommended by Tanmoy Bhattacharya <tanmoy@qcd.lanl.gov>)
%
\ifx\pdfoutput\undefined\else\ifcase\pdfoutput
\let\LinkColor=\relax
\let\NormalColor=\relax
\else
\input{pdfcolor}
\let\LinkColor=\NavyBlue
\let\NormalColor=\Black
\pdfcompresslevel=9
%
% This definition allows the entries in the page-view of the ToC to be
% active links. Some work, some don't.
%
\let\OldContentsline=\contentsline
\renewcommand{\contentsline}[3]{%
\OldContentsline{#1}{%
\pdfannotlink attr{/Border [0 0 0]} goto name{page.#3}%
\LinkColor#2\NormalColor%
\pdfendlink%
}{#3}%
}
%
% This is supposed to build the "outline" view of the document; it seems
% quite fragile. The breakages are the same as in the ToC.
%
\AtEndDocument{
\InputIfFileExists{\jobname.bkm}{\pdfcatalog{/PageMode /UseOutlines}}{}
}
\let\OldLabel=\label
\renewcommand{\label}[1]{%
\OldLabel{#1}%
{\pdfdest name{label.#1} fit}%
}
% This stuff adds a page.# destination to every PDF page, where # has
% the same formatting as the displayed page number. This doesn't really
% help with the frontmatter, but does fine with the body.
%
% This is *heavily* based on the hyperref package.
%
\def\@begindvi{%
\unvbox \@begindvibox
\@hyperfixhead
}
\def\hyperpageanchor{\pdfdest name{page.\thepage}}
\let\HYPERPAGEANCHOR\hyperpageanchor
\def\@hyperfixhead{%
\let\H@old@thehead\@thehead
\gdef\@foo{\pdfdest name{page.\thepage} fit}%
\expandafter\ifx\expandafter\@empty\H@old@thehead
\def\H@old@thehead{\hfil}\fi
\def\@thehead{\@foo\relax\H@old@thehead}%
}
\fi\fi
% Increase printable page size (copied from fullpage.sty)
\topmargin 0pt
\advance \topmargin by -\headheight
\advance \topmargin by -\headsep
% attempt to work a little better for A4 users
\@ifundefined{paperheight}{
\textheight 9in
}{
\textheight \paperheight
\advance\textheight by -2in
}
\oddsidemargin 0pt
\evensidemargin \oddsidemargin
\marginparwidth 0.5in
\@ifundefined{paperwidth}{
\textwidth 6.5in
}{
\textwidth \paperwidth
\advance\textwidth by -2in
}
% Style parameters and macros used by most documents here
\raggedbottom
\sloppy
\parindent = 0mm
\parskip = 2mm
\hbadness = 5000 % don't print trivial gripes
\pagestyle{empty} % start this way; change for
\pagenumbering{roman} % ToC & chapters
\setcounter{secnumdepth}{1}
% Use this to set the font family for headers and other decor:
\newcommand{\HeaderFamily}{\sffamily}
% Redefine the 'normal' header/footer style when using "fancyhdr" package:
\@ifundefined{fancyhf}{}{
% Use \pagestyle{normal} as the primary pagestyle for text.
\fancypagestyle{normal}{
\fancyhf{}
\fancyfoot[LE,RO]{{\HeaderFamily\thepage}}
\fancyfoot[LO]{{\HeaderFamily\nouppercase{\rightmark}}}
\fancyfoot[RE]{{\HeaderFamily\nouppercase{\leftmark}}}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0.4pt}
}
% Update the plain style so we get the page number & footer line,
% but not a chapter or section title. This is to keep the first
% page of a chapter and the blank page between chapters `clean.'
\fancypagestyle{plain}{
\fancyhf{}
\fancyfoot[LE,RO]{{\HeaderFamily\thepage}}
\renewcommand{\headrulewidth}{0pt}
\renewcommand{\footrulewidth}{0.4pt}
}
% Redefine \cleardoublepage so that the blank page between chapters
% gets the plain style and not the fancy style. This is described
% in the documentation for the fancyhdr package by Piet von Oostrum.
\@ifundefined{chapter}{}{
\renewcommand{\cleardoublepage}{
\clearpage\if@openright \ifodd\c@page\else
\hbox{}
\thispagestyle{plain}
\newpage
\if@twocolumn\hbox{}\newpage\fi\fi\fi
}
}
}
% old code font selections:
\let\codefont=\tt
\let\sectcodefont=\tt
% (Haven't found a new one that gets <, >, and _ right without being
% monospaced.)
% This sets up the {verbatim} environment to be indented and a minipage,
% and to have all the other mostly nice properties that we want for
% code samples.
% Variable used by begin code command
\newlength{\codewidth}
\newcommand{\examplevspace}{2mm}
\newcommand{\exampleindent}{1cm}
\let\OldVerbatim=\verbatim
\let\OldEndVerbatim=\endverbatim
\renewcommand{\verbatim}{%
\begingroup%
\setlength{\parindent}\exampleindent%
% Calculate the text width for the minipage:
\setlength{\codewidth}{\linewidth}%
\addtolength{\codewidth}{-\parindent}%
%
\par%
\vspace\examplevspace%
\indent%
\begin{minipage}[t]{\codewidth}%
\small%
\OldVerbatim%
}
\renewcommand{\endverbatim}{%
\OldEndVerbatim%
\end{minipage}%
\endgroup%
}
% Augment the sectioning commands used to get our own font family in place:
\renewcommand{\section}{\@startsection {section}{1}{\z@}%
{-3.5ex \@plus -1ex \@minus -.2ex}%
{2.3ex \@plus.2ex}%
{\reset@font\Large\HeaderFamily}}
\renewcommand{\subsection}{\@startsection{subsection}{2}{\z@}%
{-3.25ex\@plus -1ex \@minus -.2ex}%
{1.5ex \@plus .2ex}%
{\reset@font\large\HeaderFamily}}
\renewcommand{\subsubsection}{\@startsection{subsubsection}{3}{\z@}%
{-3.25ex\@plus -1ex \@minus -.2ex}%
{1.5ex \@plus .2ex}%
{\reset@font\normalsize\HeaderFamily}}
\renewcommand{\paragraph}{\@startsection{paragraph}{4}{\z@}%
{3.25ex \@plus1ex \@minus.2ex}%
{-1em}%
{\reset@font\normalsize\HeaderFamily}}
\renewcommand{\subparagraph}{\@startsection{subparagraph}{5}{\parindent}%
{3.25ex \@plus1ex \@minus .2ex}%
{-1em}%
{\reset@font\normalsize\HeaderFamily}}
% 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.
% You should not need this since the rest of the documentation is now
% LaTeX2e-only.
%
%\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{\refexmodindex}[1]{\refmodule{#1}{extension }}
\newcommand{\refstmodindex}[1]{\refmodule{#1}{standard }}
% support for the module index
\newif\if@UseModuleIndex
\@UseModuleIndexfalse
% 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}{
\cleardoublepage
\OldTheindex
\addcontentsline{toc}{chapter}{\indexname}
}
% these should dump an error or warning to the transcript
\newcommand{\@thismodule}{$<<$ ERROR - NO CURRENT MODULE $>>$}
\newcommand{\@thisclass}{$<<$ ERROR - NO CURRENT CLASS $>>$}
\newcommand{\makemodindex}{
\newwrite\modindexfile
\openout\modindexfile=mod\jobname.idx
\@UseModuleIndextrue
}
% Add the defining entry for a module
\newcommand{\@modindex}[2]{%
\renewcommand{\@thismodule}{#1}
\setindexsubitem{(in module \@thismodule)}%
\index{#1@{\idxcode{#1}} (#2module)|textbf}%
\if@UseModuleIndex%
\write\modindexfile{\protect\indexentry{#1@{\tt #1}}{\thepage}}%
\fi%
}
% built-in & Python modules in the main distribution
\newcommand{\bimodindex}[1]{\@modindex{#1}{built-in }}
\newcommand{\stmodindex}[1]{\@modindex{#1}{standard }}
% Python & extension modules outside the main distribution
\newcommand{\modindex}[1]{\@modindex{#1}{}}
\newcommand{\exmodindex}[1]{\@modindex{#1}{extension }}
% Additional string for an index entry
\newcommand{\index@subitem}{}
\newcommand{\setindexsubitem}[1]{\renewcommand{\index@subitem}{#1}}
\newcommand{\ttindex}[1]{\index{#1@{\idxcode{#1}} \index@subitem}}
\newcommand{\withsubitem}[2]{%
\begingroup%
\def\index@subitem{#1}#2%
\endgroup%
}
% {fulllineitems} is used in one place in libregex.tex, but is really for
% internal use in this file.
%
\newenvironment{fulllineitems}{
\begin{list}{}{\labelwidth \leftmargin \labelsep 0pt
\rightmargin 0pt \topsep -\parskip \partopsep \parskip
\itemsep -\parsep
\let\makelabel=\itemnewline}
}{\end{list}}
% cfuncdesc should be called as
% \begin{cfuncdesc}{type}{name}{arglist}
% ... description ...
% \end{cfuncdesc}
\newenvironment{cfuncdesc}[3]{%
\begin{fulllineitems}%
\item[\code{#1 \bfcode{#2}(\varvars{#3})}]%
\index{#2@{\idxcode{#2()}}}%
}{\end{fulllineitems}}
\newenvironment{cvardesc}[2]{%
\begin{fulllineitems}%
\item[\code{#1 \bfcode{#2}}]%
\index{#2@{\idxcode{#2}}}%
}{\end{fulllineitems}}
\newenvironment{ctypedesc}[1]{%
\begin{fulllineitems}%
\item[\bfcode{#1}]\ttindex{#1}
}{\end{fulllineitems}}
\newcommand{\funcline}[2]{\funclineni{#1}{#2}\ttindex{#1()}}
\newenvironment{funcdesc}[2]{%
\begin{fulllineitems}%
\funcline{#1}{#2}%
}{\end{fulllineitems}}
\newcommand{\optional}[1]{%
{\textnormal{\Large[}}{#1}\hspace{0.5mm}{\textnormal{\Large]}}}
% similar to {funcdesc}, but doesn't add to the index
\newcommand{\funclineni}[2]{\item[\code{\bfcode{#1}(\varvars{#2})}]}
\newenvironment{funcdescni}[2]{%
\begin{fulllineitems}%
\funclineni{#1}{#2}%
}{\end{fulllineitems}}
\newenvironment{classdesc}[2]{%
\renewcommand{\@thisclass}{#1}%
\begin{fulllineitems}%
\item[\code{\bfcode{#1}(\varvars{#2})}]%
\withsubitem{(class in \@thismodule)}{\ttindex{#1}}%
\def\baseclasses##1{}%
}{\end{fulllineitems}}
\newenvironment{excdesc}[1]{%
\begin{fulllineitems}%
\item[\bfcode{#1}]\ttindex{#1}%
}{\end{fulllineitems}}
\newcommand{\dataline}[1]{\datalineni{#1}\ttindex{#1}}
\newenvironment{datadesc}[1]{%
\begin{fulllineitems}%
\dataline{#1}%
}{\end{fulllineitems}}
% similar to {datadesc}, but doesn't add to the index
\newcommand{\datalineni}[1]{\item[\bfcode{#1}]}
\newenvironment{datadescni}[1]{%
\begin{fulllineitems}%
\datalineni{#1}%
}{\end{fulllineitems}}
\newenvironment{opcodedesc}[2]{%
\begin{fulllineitems}%
\item[\bfcode{#1}\quad\var{#2}]%
}{\end{fulllineitems}}
\let\nodename=\label
\newcommand{\sectcode}[1]{{\sectcodefont{#1}}}
% 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}{\sectcode{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{\bfcode}[1]{\code{\bfseries#1}} % bold-faced code font
\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{\normalsize\textrm{\textit{#1\/}}}}
\renewcommand{\emph}[1]{{\em #1\/}}
\newcommand{\dfn}[1]{\emph{#1}}
\newcommand{\strong}[1]{{\bf #1}}
% let's experiment with a new font:
\newcommand{\file}[1]{`{\small\textsf{#1}}'}
% Use this def/redef approach for \url{} since hyperref defined this already,
% but only if we actually used hyperref:
\@ifundefined{pdfannotlink}{%
\newcommand{\pythonurl}[1]{\mbox{\small\textsf{#1}}}%
}{
\newcommand{\pythonurl}[1]{{%
\pdfannotlink attr{/Border [0 0 0]} user{/S /URI /URI (#1)}%
\LinkColor% color of the link text
\mbox{\small\textsf{#1}}%
\NormalColor% Turn it back off; these are declarative
\pdfendlink}% and don't appear bound to the current
}% formatting "box".
}
\let\url=\pythonurl
\newcommand{\email}[1]{{\small\textsf{#1}}}
\newcommand{\varvars}[1]{{\def\,{\/{\char`\,}}\var{#1}}}
\newif\iftexi\texifalse
\newif\iflatex\latextrue
% 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=\sectcode
\let\keyword=\sectcode
\let\exception=\sectcode
\let\class=\sectcode
\let\function=\sectcode
\let\member=\sectcode
\let\method=\sectcode
\let\cfunction=\sectcode
\let\ctype=\sectcode
\let\cdata=\sectcode
\newcommand{\mimetype}[1]{{\small\textsf{#1}}}
% The \! is a "negative thin space" in math mode.
\newcommand{\regexp}[1]{%
{\tiny$^{^\lceil}\!\!$%
{\normalsize\code{#1}}%
$\!\!\rfloor\!$%
}}
\newcommand{\envvar}[1]{%
\$#1% $ <-- bow to font-lock 3 times!
\index{#1@{\$#1}}% $
\index{environment variables!{\$#1}}% $
}
\let\character=\samp
% constants defined in Python modules or C headers, not language constants:
\let\constant=\code
\newcommand{\manpage}[2]{{\emph{#1}(#2)}}
\newcommand{\rfc}[1]{RFC #1\index{RFC!RFC #1}}
\newcommand{\program}[1]{\strong{#1}}
% Deprecation stuff.
% Should be extended to allow an index / list of deprecated stuff. But
% there's a lot of stuff that needs to be done to make that automatable.
%
% First parameter is the release number that deprecates the feature, the
% second is the action the should be taken by users of the feature.
%
% Example:
%
% \deprecated {1.5.1}
% {Use \method{frobnicate()} instead.}
%
\newcommand{\deprecated}[2]{%
\strong{Deprecated since release #1.} #2\par}
\newenvironment{tableii}[4]{%
\begin{center}%
\def\lineii##1##2{\csname#2\endcsname{##1}&##2\\}%
\begin{tabular}{#1}\hline \strong{#3}&\strong{#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 \strong{#3}&\strong{#4}&\strong{#5} \\ \hline%
}{%
\hline%
\end{tabular}%
\end{center}%
}
\newcommand{\itemnewline}[1]{%
\@tempdima\linewidth%
\advance\@tempdima \leftmargin\makebox[\@tempdima][l]{#1}%
}
% Cross-referencing (AMK)
% Sample usage:
% \begin{seealso}
% \seemodule{rand}{Uniform random number generator}; % Module xref
% \seetext{\emph{Encyclopedia Britannica}}. % Ref to a book
%
% % A funky case: module name contains '_'; have to supply an optional key
% \seemodule[copyreg]{copy_reg}{pickle interface constructor registration}
%
% \end{seealso}
\newif\if@keyedmodule\@keyedmodulefalse
\newcommand{\@modulebadkey}{{--just-some-junk--}}
\@ifundefined{pdfannotlink}{%
\newcommand{\seemodule}[3][\@modulebadkey]{%
\ifx\@modulebadkey#1\def\@modulekey{#2}\else\def\@modulekey{#1}\fi%
\ref{module-\@modulekey}:\quad %
Module \module{#2}%
\quad (#3)%
}
}{\newcommand{\seemodule}[3][\@modulebadkey]{%
\ifx\@modulebadkey#1\def\@modulekey{#2}\else\def\@modulekey{#1}\fi%
\ref{module-\@modulekey}:\quad %
{\pdfannotlink attr{/Border [0 0 0]} goto name{label.module-\@modulekey}%
\LinkColor Module \module{#2} \NormalColor%
\pdfendlink%
}%
\quad (#3)%
}
}
\newenvironment{seealso}[0]{
\strong{See Also:}\par
\def\seetext##1{\par{##1}}
}{\par}
% 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}}
% This sets up the fancy chapter headings that make the documents look
% at least a little better than the usual LaTeX output.
%
\@ifundefined{ChTitleVar}{}{
\ChNameVar{\raggedleft\normalsize\HeaderFamily}
\ChNumVar{\raggedleft \bfseries\Large\HeaderFamily}
\ChTitleVar{\raggedleft \rm\Huge\HeaderFamily}
% 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}
}
}
}
% Tell TeX about pathological hyphenation cases:
\hyphenation{Base-HTTP-Re-quest-Hand-ler}