sphinx/sphinx/texinputs/sphinx.sty

%
% sphinx.sty
%
% Adapted from the old python.sty, mostly written by Fred Drake,
% by Georg Brandl.
%

\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{sphinx}[2010/01/15 LaTeX package (Sphinx markup)]

\@ifclassloaded{memoir}{}{\RequirePackage{fancyhdr}}

% for \text macro and \iffirstchoice@ conditional even if amsmath not loaded
\RequirePackage{amstext}
\RequirePackage{textcomp}
% fancybox not used anymore and will be removed at Sphinx-1.5
\RequirePackage{fancybox}
\RequirePackage{titlesec}
\RequirePackage{tabulary}
\RequirePackage{makeidx}
% For framing code-blocks and warning type notices, and shadowing topics
\RequirePackage{framed}
\newif\ifSphinx@inframed % flag set if we are in a framed environment
% ifthen not used anymore and will be removed at Sphinx-1.5
\RequirePackage{ifthen}
% The xcolor package draws better fcolorboxes around verbatim code
\IfFileExists{xcolor.sty}{
    \RequirePackage{xcolor}
}{
    \RequirePackage{color}
}
% For highlighted code.
\RequirePackage{fancyvrb}
% For table captions.
\RequirePackage{threeparttable}
% Handle footnotes in tables.
\RequirePackage{footnote}
\makesavenoteenv{tabulary}
% For floating figures in the text.
\RequirePackage{wrapfig}
% Separate paragraphs by space by default.
\RequirePackage{parskip}
% For parsed-literal blocks.
\RequirePackage{alltt}
% Display "real" single quotes in literal blocks.
\RequirePackage{upquote}

% Redefine these colors to your liking in the preamble.
\definecolor{TitleColor}{rgb}{0.126,0.263,0.361}
\definecolor{InnerLinkColor}{rgb}{0.208,0.374,0.486}
\definecolor{OuterLinkColor}{rgb}{0.216,0.439,0.388}
% Redefine these colors to something if you want to have colored
% background and border for code examples.
\definecolor{VerbatimColor}{rgb}{1,1,1}
\definecolor{VerbatimBorderColor}{rgb}{0,0,0}

% Uncomment these two lines to ignore the paper size and make the page 
% size more like a typical published manual.
%\renewcommand{\paperheight}{9in}
%\renewcommand{\paperwidth}{8.5in}   % typical squarish manual
%\renewcommand{\paperwidth}{7in}     % O'Reilly ``Programmming Python''

% use pdfoutput for pTeX and dvipdfmx
% when pTeX (\kanjiskip is defined), set pdfoutput to evade \include{pdfcolor}
\ifx\kanjiskip\undefined\else
  \newcount\pdfoutput\pdfoutput=0
\fi

\RequirePackage{graphicx}

% for PDF output, use colors and maximal compression
\newif\ifsphinxpdfoutput\sphinxpdfoutputfalse
\ifx\pdfoutput\undefined\else\ifcase\pdfoutput
  \let\py@NormalColor\relax
  \let\py@TitleColor\relax
\else
  \sphinxpdfoutputtrue
  \input{pdfcolor}
  \def\py@NormalColor{\color[rgb]{0.0,0.0,0.0}}
  \def\py@TitleColor{\color{TitleColor}}
  \pdfcompresslevel=9
\fi\fi

% XeLaTeX can do colors, too
\ifx\XeTeXrevision\undefined\else
  \def\py@NormalColor{\color[rgb]{0.0,0.0,0.0}}
  \def\py@TitleColor{\color{TitleColor}}
\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
\textheight \paperheight
\advance\textheight by -2in

\oddsidemargin 0pt
\evensidemargin 0pt
%\evensidemargin -.25in  % for ``manual size'' documents
\marginparwidth 0.5in

\textwidth \paperwidth
\advance\textwidth by -2in


% Style parameters and macros used by most documents here
\raggedbottom
\sloppy
\hbadness = 5000                % don't print trivial gripes

\pagestyle{empty}               % start this way

% Use this to set the font family for headers and other decor:
\newcommand{\py@HeaderFamily}{\sffamily\bfseries}

% 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]{{\py@HeaderFamily\thepage}}
    \fancyfoot[LO]{{\py@HeaderFamily\nouppercase{\rightmark}}}
    \fancyfoot[RE]{{\py@HeaderFamily\nouppercase{\leftmark}}}
    \fancyhead[LE,RO]{{\py@HeaderFamily \@title, \py@release}}
    \renewcommand{\headrulewidth}{0.4pt}
    \renewcommand{\footrulewidth}{0.4pt}
    % define chaptermark with \@chappos when \@chappos is available for Japanese
    \ifx\@chappos\undefined\else
      \def\chaptermark##1{\markboth{\@chapapp\space\thechapter\space\@chappos\space ##1}{}}
    \fi
  }
  % 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]{{\py@HeaderFamily\thepage}}
    \renewcommand{\headrulewidth}{0pt}
    \renewcommand{\footrulewidth}{0.4pt}
  }
}

% Some custom font markup commands.
%
\newcommand{\strong}[1]{{\textbf{#1}}}
% let \code and \bfcode use straight quotes (\@noligs patched by upquote)
% use \scantokens to handle e.g. \item[{\code{'fontenc'}}], too late for
% \code to change catcodes.
\newcommand{\code}[1]{{\@noligs\scantokens{\texttt{#1}}}}
\newcommand{\bfcode}[1]{\code{\bfseries#1}}
\newcommand{\email}[1]{\textsf{#1}}
\newcommand{\tablecontinued}[1]{\textsf{#1}}
\newcommand{\titleref}[1]{\emph{#1}}
\newcommand{\menuselection}[1]{\emph{#1}}
\newcommand{\accelerator}[1]{\underline{#1}}
\newcommand{\crossref}[1]{\emph{#1}}
\newcommand{\termref}[1]{\emph{#1}}

\newcommand*{\sphinxAtStartFootnote}{\mbox{ }}

% Support large numbered footnotes in minipage (cf. admonitions)
\def\thempfootnote{\arabic{mpfootnote}}

% Redefine the Verbatim environment to allow border and background colors
% and to handle the top caption in a non separable by pagebreak way.
% The original environment is still used for verbatims within tables.
\let\OriginalVerbatim=\Verbatim
\let\endOriginalVerbatim=\endVerbatim

\newcommand\Sphinx@colorbox [2]{%
% #1 will be \fcolorbox or, for first part of frame: \Sphinx@fcolorbox
% let the framing obey the current indentation (adapted from framed.sty's code).
  \hskip\@totalleftmargin
  \hskip-\fboxsep\hskip-\fboxrule
  #1{VerbatimBorderColor}{VerbatimColor}{#2}%
  \hskip-\fboxsep\hskip-\fboxrule
  \hskip-\linewidth \hskip-\@totalleftmargin \hskip\columnwidth
}
% use of \color@b@x here is compatible with both xcolor.sty and color.sty
\def\Sphinx@fcolorbox #1#2%
  {\color@b@x {\fboxsep\z@\color{#1}\Sphinx@VerbatimFBox}{\color{#2}}}%

% The title is specified from outside as macro \SphinxVerbatimTitle.
% \SphinxVerbatimTitle is reset to empty after each use of Verbatim.
\newcommand*\SphinxVerbatimTitle {}
% Holder macro for labels of literal blocks. Set-up by LaTeX writer.
\newcommand*\SphinxLiteralBlockLabel {}
\newcommand*\SphinxSetupCaptionForVerbatim [2]
{%
    \needspace{\literalblockneedspace}%
% insert a \label via \SphinxLiteralBlockLabel
% reset to normal the color for the literal block caption
% the caption inserts \abovecaptionskip whitespace above itself (usually 10pt)
% there is also \belowcaptionskip but it is usually zero, hence the \smallskip
    \def\SphinxVerbatimTitle
       {\py@NormalColor\captionof{#1}{\SphinxLiteralBlockLabel #2}\smallskip }%
}

% Inspired and adapted from framed.sty's \CustomFBox with extra handling
% of a non separable by pagebreak caption, and controlled counter stepping.
\newif\ifSphinx@myfirstframedpass

\long\def\Sphinx@VerbatimFBox#1{%
  \leavevmode
  \begingroup
  % framed.sty does some measuring but this macro adds possibly a caption
  % use amsmath conditional to inhibit the caption counter stepping after
  % first pass
  \ifSphinx@myfirstframedpass\else\firstchoice@false\fi
  \setbox\@tempboxa\hbox{\kern\fboxsep{#1}\kern\fboxsep}%
   \hbox
   {\lower\dimexpr\fboxrule+\fboxsep+\dp\@tempboxa
    \hbox{%
      \vbox{\ifx\SphinxVerbatimTitle\empty\else
            % add the caption in a centered way above possibly indented frame
            % hide its width from framed.sty's measuring step
            % note that the caption brings \abovecaptionskip top vertical space
            \moveright\dimexpr\fboxrule+.5\wd\@tempboxa
                  \hb@xt@\z@{\hss\begin{minipage}{\wd\@tempboxa}%
                                  \SphinxVerbatimTitle
                                 \end{minipage}\hss}\fi
            \hrule\@height\fboxrule\relax
            \hbox{\vrule\@width\fboxrule\relax
                  \vbox{\vskip\fboxsep\copy\@tempboxa\vskip\fboxsep}%
                  \vrule\@width\fboxrule\relax}%
            \hrule\@height\fboxrule\relax}%
   }}%
  \endgroup
  \global\Sphinx@myfirstframedpassfalse
}

% For linebreaks inside Verbatim environment from package fancyvrb.
\newbox\Sphinxcontinuationbox
\newbox\Sphinxvisiblespacebox
% These are user customizable e.g. from latex_elements's preamble key.
% Use of \textvisiblespace for compatibility with XeTeX/LuaTeX/fontspec.
\newcommand*\Sphinxvisiblespace {\textcolor{red}{\textvisiblespace}}
\newcommand*\Sphinxcontinuationsymbol {\textcolor{red}{\llap{\tiny$\m@th\hookrightarrow$}}}
\newcommand*\Sphinxcontinuationindent {3ex }
\newcommand*\Sphinxafterbreak {\kern\Sphinxcontinuationindent\copy\Sphinxcontinuationbox}

% Take advantage of the already applied Pygments mark-up to insert
% potential linebreaks for TeX processing.
%        {, <, #, %, $, ' and ": go to next line.
%        _, }, ^, &, >, - and ~: stay at end of broken line.
% Use of \textquotesingle for straight quote.
\newcommand*\Sphinxbreaksatspecials {%
    \def\PYGZus{\discretionary{\char`\_}{\Sphinxafterbreak}{\char`\_}}%
    \def\PYGZob{\discretionary{}{\Sphinxafterbreak\char`\{}{\char`\{}}%
    \def\PYGZcb{\discretionary{\char`\}}{\Sphinxafterbreak}{\char`\}}}%
    \def\PYGZca{\discretionary{\char`\^}{\Sphinxafterbreak}{\char`\^}}%
    \def\PYGZam{\discretionary{\char`\&}{\Sphinxafterbreak}{\char`\&}}%
    \def\PYGZlt{\discretionary{}{\Sphinxafterbreak\char`\<}{\char`\<}}%
    \def\PYGZgt{\discretionary{\char`\>}{\Sphinxafterbreak}{\char`\>}}%
    \def\PYGZsh{\discretionary{}{\Sphinxafterbreak\char`\#}{\char`\#}}%
    \def\PYGZpc{\discretionary{}{\Sphinxafterbreak\char`\%}{\char`\%}}%
    \def\PYGZdl{\discretionary{}{\Sphinxafterbreak\char`\$}{\char`\$}}%
    \def\PYGZhy{\discretionary{\char`\-}{\Sphinxafterbreak}{\char`\-}}%
    \def\PYGZsq{\discretionary{}{\Sphinxafterbreak\textquotesingle}{\textquotesingle}}%
    \def\PYGZdq{\discretionary{}{\Sphinxafterbreak\char`\"}{\char`\"}}%
    \def\PYGZti{\discretionary{\char`\~}{\Sphinxafterbreak}{\char`\~}}%
}

% Some characters . , ; ? ! / are not pygmentized.
% This macro makes them "active" and they will insert potential linebreaks
\newcommand*\Sphinxbreaksatpunct {%
   \lccode`\~`\.\lowercase{\def~}{\discretionary{\char`\.}{\Sphinxafterbreak}{\char`\.}}%
   \lccode`\~`\,\lowercase{\def~}{\discretionary{\char`\,}{\Sphinxafterbreak}{\char`\,}}%
   \lccode`\~`\;\lowercase{\def~}{\discretionary{\char`\;}{\Sphinxafterbreak}{\char`\;}}%
   \lccode`\~`\:\lowercase{\def~}{\discretionary{\char`\:}{\Sphinxafterbreak}{\char`\:}}%
   \lccode`\~`\?\lowercase{\def~}{\discretionary{\char`\?}{\Sphinxafterbreak}{\char`\?}}%
   \lccode`\~`\!\lowercase{\def~}{\discretionary{\char`\!}{\Sphinxafterbreak}{\char`\!}}%
   \lccode`\~`\/\lowercase{\def~}{\discretionary{\char`\/}{\Sphinxafterbreak}{\char`\/}}%
   \catcode`\.\active
   \catcode`\,\active
   \catcode`\;\active
   \catcode`\:\active
   \catcode`\?\active
   \catcode`\!\active
   \catcode`\/\active
   \lccode`\~`\~
}

\renewcommand{\Verbatim}[1][1]{%
  % quit horizontal mode if we are still in a paragraph
  \par
  % list starts new par, but we don't want it to be set apart vertically
  \parskip\z@skip
  % first, let's check if there is a caption
  \ifx\SphinxVerbatimTitle\empty
      \addvspace\z@% counteract possible previous negative skip (French lists!)
      \smallskip
      % there was no caption. Check if nevertheless a label was set.
      \ifx\SphinxLiteralBlockLabel\empty\else
      % we require some space to be sure hyperlink target from \phantomsection
      % will not be separated from upcoming verbatim by a page break
          \needspace{\literalblockwithoutcaptionneedspace}%
          \phantomsection\SphinxLiteralBlockLabel
      \fi
  \fi
  % non-empty \SphinxVerbatimTitle has label inside it (in case there is one)
  % Customize framed.sty \MakeFramed to glue caption to literal block
  \global\Sphinx@myfirstframedpasstrue
  % via \Sphinx@fcolorbox, will use \Sphinx@VerbatimFBox which inserts title
  \def\FrameCommand   {\Sphinx@colorbox\Sphinx@fcolorbox }%
  \let\FirstFrameCommand\FrameCommand
  % for mid pages and last page portion of (long) split frame:
  \def\MidFrameCommand{\Sphinx@colorbox\fcolorbox }%
  \let\LastFrameCommand\MidFrameCommand
  % fancyvrb's Verbatim puts each input line in (unbreakable) horizontal boxes.
  % This customization wraps each line from the input in a \vtop, thus
  % allowing it to wrap and display on two or more lines in the latex output.
  %     - The codeline counter will be increased only once.
  %     - The wrapped material will not break across pages, it is impossible
  %       to achieve this without extensive rewrite of fancyvrb.
  %     - The (not used in Sphinx) obeytabs option to Verbatim is
  %       broken by this change (showtabs and tabspace work).
  \sbox\Sphinxcontinuationbox {\Sphinxcontinuationsymbol}%
  \sbox\Sphinxvisiblespacebox {\FV@SetupFont\Sphinxvisiblespace}%
  \def\FancyVerbFormatLine ##1{\hsize\linewidth
          \vtop{\raggedright\hyphenpenalty\z@\exhyphenpenalty\z@
                \doublehyphendemerits\z@\finalhyphendemerits\z@
                \strut ##1\strut}%
          }%
  % If the linebreak is at a space, the latter will be displayed as visible
  % space at end of first line, and a continuation symbol starts next line.
  % Stretch/shrink are however usually zero for typewriter font.
  \def\FV@Space {%
       \nobreak\hskip\z@ plus\fontdimen3\font minus\fontdimen4\font
       \discretionary{\copy\Sphinxvisiblespacebox}{\Sphinxafterbreak}
                     {\kern\fontdimen2\font}%
       }%
  % go around fancyvrb's check of @currenvir (for case of minipage below)
  \renewcommand*{\VerbatimEnvironment}{\gdef\FV@EnvironName{Verbatim}}%
  % Allow breaks at special characters using \PYG... macros.
  \Sphinxbreaksatspecials
  % The list environment is needed to control perfectly the vertical space.
  % Note: \OuterFrameSep used by framed.sty is later set to \topsep hence 0pt.
  % - if caption: vertical space above caption = (\abovecaptionskip + D) with
  %   D = \baselineskip-\FrameHeightAdjust, and then \smallskip above frame.
  % - if no caption: (\smallskip + D) above frame. By default D=6pt.
  % Use trivlist rather than list to avoid possible "too deeply nested" error.
  \itemsep   \z@skip
  \topsep    \z@skip
  \partopsep \z@skip% trivlist will set \parsep to \parskip = zero (see above)
  % \leftmargin will be set to zero by trivlist
  \rightmargin\z@
  \parindent  \z@% becomes \itemindent. Default zero, but perhaps overwritten.
  \trivlist\item\relax
  % use a minipage if we are already inside a framed environment
     \ifSphinx@inframed\noindent\begin{minipage}{\linewidth}\fi
     \MakeFramed {% adapted over from framed.sty's snugshade environment
     \advance\hsize-\width\@totalleftmargin\z@\linewidth\hsize
     \@setminipage  }%
     \small
     % For grid placement from \strut's in \FancyVerbFormatLine
     \lineskip\z@skip
     % Breaks at punctuation characters . , ; ? ! and / need catcode=\active
     \OriginalVerbatim[#1,codes*=\Sphinxbreaksatpunct]%
}
\renewcommand{\endVerbatim}{%
  \endOriginalVerbatim
  \par\unskip\@minipagefalse\endMakeFramed
  \ifSphinx@inframed\end{minipage}\fi
  \endtrivlist
}

% define macro to frame contents and add shadow on right and bottom
\def\Sphinx@shadowsep     {5\p@}       % \p@ means "pt "
\def\Sphinx@shadowsize    {4\p@}
\def\Sphinx@shadowrule    {\fboxrule}
\long\def\Sphinx@ShadowFBox#1{%
  \leavevmode\begingroup
  % first we frame the box #1
  \setbox\@tempboxa
   \hbox{\vrule\@width\Sphinx@shadowrule
         \vbox{\hrule\@height\Sphinx@shadowrule
               \kern\Sphinx@shadowsep
               \hbox{\kern\Sphinx@shadowsep #1\kern\Sphinx@shadowsep}%
               \kern\Sphinx@shadowsep
               \hrule\@height\Sphinx@shadowrule}%
         \vrule\@width\Sphinx@shadowrule}%
  % Now we add the shadow, like \shadowbox from fancybox.sty would do
  \dimen@\dimexpr.5\Sphinx@shadowrule+\Sphinx@shadowsize\relax
  \hbox{\vbox{\offinterlineskip
              \hbox{\copy\@tempboxa\kern-.5\Sphinx@shadowrule
                    % add shadow on right side
                    \lower\Sphinx@shadowsize
                          \hbox{\vrule\@height\ht\@tempboxa \@width\dimen@}%
                    }%
              \kern-\dimen@ % shift back vertically to bottom of frame
              % and add shadow at bottom
              \moveright\Sphinx@shadowsize
                    \vbox{\hrule\@width\wd\@tempboxa \@height\dimen@}%
              }%
        % move left by the size of right shadow so shadow adds no width
        \kern-\Sphinx@shadowsize
       }%
  \endgroup
}

% use framed.sty to allow page breaks in frame+shadow
% works well inside Lists and Quote-like environments
% produced by ``topic'' directive (or local contents)
% could nest if LaTeX writer authorized it
\newenvironment{SphinxShadowBox}
  {\def\FrameCommand {\Sphinx@ShadowFBox }%
   % configure framed.sty not to add extra vertical spacing
   \OuterFrameSep \z@skip
   % the \trivlist will add the vertical spacing on top and bottom which is
   % typical of center environment as used in Sphinx <= 1.4.1
   % the \noindent has the effet of an extra blank line on top, to
   % imitate closely the layout from Sphinx <= 1.4.1; the \FrameHeightAdjust
   % will put top part of frame on this baseline.
   \def\FrameHeightAdjust {\baselineskip}%
   \trivlist\item\noindent
    % use a minipage if we are already inside a framed environment
    \ifSphinx@inframed\begin{minipage}{\linewidth}\fi
    \MakeFramed {\Sphinx@inframedtrue
    % framed.sty puts into "\width" the added width (=2shadowsep+2shadowrule)
    % adjust \hsize to what the contents must use
    \advance\hsize-\width
    % adjust LaTeX parameters to behave properly in indented/quoted contexts
    \FrameRestore
    % typeset the contents as in a minipage (Sphinx <= 1.4.1 used a minipage and
    % itemize/enumerate are therein typeset more tightly, we want to keep
    % that). We copy-paste from LaTeX source code but don't do a real minipage.
    \@pboxswfalse
       % for footnotes, but Sphinx inactivates footnotes in topics
       \def\@mpfn{mpfootnote}\def\thempfn{\thempfootnote}\c@mpfootnote\z@
       \let\@footnotetext\@mpfootnotetext
    \let\@listdepth\@mplistdepth \@mplistdepth\z@
    \@minipagerestore
    \@setminipage
    }%
  }%
  {% insert the "endminipage" code
    \par\unskip
    % handle (currently non existing) minipage style footnotes
    \ifvoid\@mpfootins\else
      \vskip\skip\@mpfootins\normalcolor\footnoterule\unvbox\@mpfootins
    \fi
    \@minipagefalse
   \endMakeFramed
     \ifSphinx@inframed\end{minipage}\fi
   \endtrivlist
  }


% \moduleauthor{name}{email}
\newcommand{\moduleauthor}[2]{}

% \sectionauthor{name}{email}
\newcommand{\sectionauthor}[2]{}

% Augment the sectioning commands used to get our own font family in place,
% and reset some internal data items:
\titleformat{\section}{\Large\py@HeaderFamily}%
            {\py@TitleColor\thesection}{0.5em}{\py@TitleColor}{\py@NormalColor}
\titleformat{\subsection}{\large\py@HeaderFamily}%
            {\py@TitleColor\thesubsection}{0.5em}{\py@TitleColor}{\py@NormalColor}
\titleformat{\subsubsection}{\py@HeaderFamily}%
            {\py@TitleColor\thesubsubsection}{0.5em}{\py@TitleColor}{\py@NormalColor}
% By default paragraphs (and subsubsections) will not be numbered because
% sphinxmanual.cls and sphinxhowto.cls set secnumdepth to 2
\titleformat{\paragraph}{\py@HeaderFamily}%
            {\py@TitleColor\theparagraph}{0.5em}{\py@TitleColor}{\py@NormalColor}
\titleformat{\subparagraph}{\py@HeaderFamily}%
            {\py@TitleColor\thesubparagraph}{0.5em}{\py@TitleColor}{\py@NormalColor}

% {fulllineitems} is the main environment for object descriptions.
%
\newcommand{\py@itemnewline}[1]{%
  \@tempdima\linewidth%
  \advance\@tempdima \leftmargin\makebox[\@tempdima][l]{#1}%
}

\newenvironment{fulllineitems}{
  \begin{list}{}{\labelwidth \leftmargin \labelsep 0pt
                 \rightmargin 0pt \topsep -\parskip \partopsep \parskip
                 \itemsep -\parsep
                 \let\makelabel=\py@itemnewline}
}{\end{list}}

% \optional is used for ``[, arg]``, i.e. desc_optional nodes.
\newcommand{\optional}[1]{%
  {\textnormal{\Large[}}{#1}\hspace{0.5mm}{\textnormal{\Large]}}}

\newlength{\py@argswidth}
\newcommand{\py@sigparams}[2]{%
  \parbox[t]{\py@argswidth}{#1\code{)}#2}}
\newcommand{\pysigline}[1]{\item[#1]\nopagebreak}
\newcommand{\pysiglinewithargsret}[3]{%
  \settowidth{\py@argswidth}{#1\code{(}}%
  \addtolength{\py@argswidth}{-2\py@argswidth}%
  \addtolength{\py@argswidth}{\linewidth}%
  \item[#1\code{(}\py@sigparams{#2}{#3}]}

% Production lists
%
\newenvironment{productionlist}{
%  \def\optional##1{{\Large[}##1{\Large]}}
  \def\production##1##2{\\\code{##1}&::=&\code{##2}}
  \def\productioncont##1{\\& &\code{##1}}
  \parindent=2em
  \indent
  \setlength{\LTpre}{0pt}
  \setlength{\LTpost}{0pt}
  \begin{longtable}[l]{lcl}
}{%
  \end{longtable}
}

% Notices / Admonitions
%

% Code adapted from framed.sty's "snugshade" environment.
% Nesting works (inner frames do not allow page breaks).
\newcommand{\py@heavybox}{\par
   \setlength{\FrameRule}{\p@}% 1pt
   \setlength{\FrameSep}{\dimexpr.6\baselineskip-\FrameRule\relax}
   % configure framed.sty's parameters to obtain same vertical spacing
   % as for "light" boxes. We need for this to manually insert parskip glue and
   % revert a skip done by framed before the frame.
    \setlength{\OuterFrameSep}{0pt}
    \vspace{\FrameHeightAdjust}
   % copied/adapted from framed.sty's snugshade
   \def\FrameCommand##1{\hskip\@totalleftmargin
       \fboxsep\FrameSep \fboxrule\FrameRule\fbox{##1}%
       \hskip-\linewidth \hskip-\@totalleftmargin \hskip\columnwidth}%
   % use a minipage if we are already inside a framed environment
   \ifSphinx@inframed
       \noindent\begin{minipage}{\linewidth}
   \else
       % handle case where notice is first thing in a list item (or is quoted)
       \if@inlabel
        \noindent\par\vspace{-\baselineskip}
       \else
        \vspace{\parskip}
       \fi
   \fi
   \MakeFramed {\Sphinx@inframedtrue
     \advance\hsize-\width \@totalleftmargin\z@ \linewidth\hsize
     % minipage initialization copied from LaTeX source code.
     \@pboxswfalse
       % for footnotes
       \def\@mpfn{mpfootnote}\def\thempfn{\thempfootnote}\c@mpfootnote\z@
       \let\@footnotetext\@mpfootnotetext
     \let\@listdepth\@mplistdepth \@mplistdepth\z@
     \@minipagerestore
     \@setminipage }%
   }
\newcommand{\py@endheavybox}{%
   \par\unskip
   % handles footnotes
   \ifvoid\@mpfootins\else
      \vskip\skip\@mpfootins\normalcolor\footnoterule\unvbox\@mpfootins
   \fi
   \@minipagefalse
   \endMakeFramed
   \ifSphinx@inframed\end{minipage}\fi
   % arrange for similar spacing below frame as for "light" boxes.
   \vskip .4\baselineskip
   }

\newcommand{\py@lightbox}{%
  \par\allowbreak
  \noindent\rule{\linewidth}{0.5pt}\par\nobreak
  {\parskip\z@skip\noindent}%
  }
\newcommand{\py@endlightbox}{%
  \par
  % counteract previous possible negative skip (French lists!):
  % (we can't cancel that any earlier \vskip introduced a potential pagebreak)
  \ifdim\lastskip<\z@\vskip-\lastskip\fi
  \nobreak\vbox{\noindent\kern\@totalleftmargin
           \rule[.4\baselineskip]{\linewidth}{0.5pt}\hss}\allowbreak
  }

% Some are quite plain:
\newcommand{\py@noticestart@note}{\py@lightbox}
\newcommand{\py@noticeend@note}{\py@endlightbox}
\newcommand{\py@noticestart@hint}{\py@lightbox}
\newcommand{\py@noticeend@hint}{\py@endlightbox}
\newcommand{\py@noticestart@important}{\py@lightbox}
\newcommand{\py@noticeend@important}{\py@endlightbox}
\newcommand{\py@noticestart@tip}{\py@lightbox}
\newcommand{\py@noticeend@tip}{\py@endlightbox}

% Others gets more visible distinction:
\newcommand{\py@noticestart@warning}{\py@heavybox}
\newcommand{\py@noticeend@warning}{\py@endheavybox}
\newcommand{\py@noticestart@caution}{\py@heavybox}
\newcommand{\py@noticeend@caution}{\py@endheavybox}
\newcommand{\py@noticestart@attention}{\py@heavybox}
\newcommand{\py@noticeend@attention}{\py@endheavybox}
\newcommand{\py@noticestart@danger}{\py@heavybox}
\newcommand{\py@noticeend@danger}{\py@endheavybox}
\newcommand{\py@noticestart@error}{\py@heavybox}
\newcommand{\py@noticeend@error}{\py@endheavybox}

\newenvironment{notice}[2]{
  \def\py@noticetype{#1}
  \csname py@noticestart@#1\endcsname
  \strong{#2}
}{\csname py@noticeend@\py@noticetype\endcsname}

% 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 release that is documented.
%
\newcommand{\py@release}{}
\newcommand{\version}{}
\newcommand{\shortversion}{}
\newcommand{\releaseinfo}{}
\newcommand{\releasename}{Release}
\newcommand{\release}[1]{%
  \renewcommand{\py@release}{\releasename\space\version}%
  \renewcommand{\version}{#1}}
\newcommand{\setshortversion}[1]{%
  \renewcommand{\shortversion}{#1}}
\newcommand{\setreleaseinfo}[1]{%
  \renewcommand{\releaseinfo}{#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{\py@authoraddress}{}
\newcommand{\authoraddress}[1]{\renewcommand{\py@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\py@HeaderFamily}
  \ChNumVar{\raggedleft \bfseries\Large\py@HeaderFamily}
  \ChTitleVar{\raggedleft \textrm{\Huge\py@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}
    }
  }
}

% Redefine description environment so that it is usable inside fulllineitems.
%
\renewcommand{\description}{%
  \list{}{\labelwidth\z@%
          \itemindent-\leftmargin%
	  \labelsep5pt%
          \let\makelabel=\descriptionlabel}}

% Definition lists; requested by AMK for HOWTO documents.  Probably useful
% elsewhere as well, so keep in in the general style support.
%
\newenvironment{definitions}{%
  \begin{description}%
  \def\term##1{\item[##1]\mbox{}\\*[0mm]}
}{%
  \end{description}%
}

% Tell TeX about pathological hyphenation cases:
\hyphenation{Base-HTTP-Re-quest-Hand-ler}


% The following is stuff copied from docutils' latex writer.
%
\newcommand{\optionlistlabel}[1]{\bf #1 \hfill}
\newenvironment{optionlist}[1]
{\begin{list}{}
  {\setlength{\labelwidth}{#1}
   \setlength{\rightmargin}{1cm}
   \setlength{\leftmargin}{\rightmargin}
   \addtolength{\leftmargin}{\labelwidth}
   \addtolength{\leftmargin}{\labelsep}
   \renewcommand{\makelabel}{\optionlistlabel}}
}{\end{list}}

\newlength{\lineblockindentation}
\setlength{\lineblockindentation}{2.5em}
\newenvironment{lineblock}[1]
{\begin{list}{}
  {\setlength{\partopsep}{\parskip}
   \addtolength{\partopsep}{\baselineskip}
   \topsep0pt\itemsep0.15\baselineskip\parsep0pt
   \leftmargin#1}
 \raggedright}
{\end{list}}

% Redefine includgraphics for avoiding images larger than the screen size
% If the size is not specified.
\let\py@Oldincludegraphics\includegraphics

\newbox\image@box%
\newdimen\image@width%
\renewcommand\includegraphics[2][\@empty]{%
  \ifx#1\@empty%
    \setbox\image@box=\hbox{\py@Oldincludegraphics{#2}}%
    \image@width\wd\image@box%
    \ifdim \image@width>\linewidth%
      \setbox\image@box=\hbox{\py@Oldincludegraphics[width=\linewidth]{#2}}%
      \box\image@box%
    \else%
      \py@Oldincludegraphics{#2}%
    \fi%
  \else%
    \py@Oldincludegraphics[#1]{#2}%
  \fi%
}

% to make pdf with correct encoded bookmarks in Japanese
% this should precede the hyperref package
\ifx\kanjiskip\undefined
% for non-Japanese: make sure bookmarks are ok also with lualatex
  \PassOptionsToPackage{pdfencoding=unicode}{hyperref}
\else
  \usepackage{atbegshi}
  \ifx\ucs\undefined
    \ifnum 42146=\euc"A4A2
      \AtBeginShipoutFirst{\special{pdf:tounicode EUC-UCS2}}
    \else
      \AtBeginShipoutFirst{\special{pdf:tounicode 90ms-RKSJ-UCS2}}
    \fi
  \else
    \AtBeginShipoutFirst{\special{pdf:tounicode UTF8-UCS2}}
  \fi
\fi

% Include hyperref last.
\RequirePackage[colorlinks,breaklinks,
                linkcolor=InnerLinkColor,filecolor=OuterLinkColor,
                menucolor=OuterLinkColor,urlcolor=OuterLinkColor,
                citecolor=InnerLinkColor]{hyperref}
% Fix anchor placement for figures with captions.
% (Note: we don't use a package option here; instead, we give an explicit
% \capstart for figures that actually have a caption.)
\RequirePackage{hypcap}

% Set up styles of URL: it should be placed after hyperref
\urlstyle{same}

% From docutils.writers.latex2e
% inline markup (custom roles)
% \DUrole{#1}{#2} tries \DUrole#1{#2}
\providecommand*{\DUrole}[2]{%
  \ifcsname DUrole#1\endcsname%
    \csname DUrole#1\endcsname{#2}%
  \else% backwards compatibility: try \docutilsrole#1{#2}
    \ifcsname docutilsrole#1\endcsname%
      \csname docutilsrole#1\endcsname{#2}%
    \else%
      #2%
    \fi%
  \fi%
}

\providecommand*{\DUprovidelength}[2]{%
  \ifdefined#1\else\newlength{#1}\setlength{#1}{#2}\fi
}

\DUprovidelength{\DUlineblockindent}{2.5em}
\ifdefined\DUlineblock\else
  \newenvironment{DUlineblock}[1]{%
    \list{}{\setlength{\partopsep}{\parskip}
            \addtolength{\partopsep}{\baselineskip}
            \setlength{\topsep}{0pt}
            \setlength{\itemsep}{0.15\baselineskip}
            \setlength{\parsep}{0pt}
            \setlength{\leftmargin}{#1}}
    \raggedright
  }
  {\endlist}
\fi

% From footmisc.sty: allows footnotes in titles
\let\FN@sf@@footnote\footnote
\def\footnote{\ifx\protect\@typeset@protect
    \expandafter\FN@sf@@footnote
  \else
    \expandafter\FN@sf@gobble@opt
  \fi
}
\edef\FN@sf@gobble@opt{\noexpand\protect
  \expandafter\noexpand\csname FN@sf@gobble@opt \endcsname}
\expandafter\def\csname FN@sf@gobble@opt \endcsname{%
  \@ifnextchar[%]
    \FN@sf@gobble@twobracket
    \@gobble
}
\def\FN@sf@gobble@twobracket[#1]#2{}

% adjust the margins for footer,
% this works with the jsclasses only (Japanese standard document classes)
\ifx\@jsc@uplatextrue\undefined\else
  \hypersetup{setpagesize=false}
  \setlength\footskip{2\baselineskip}
  \addtolength{\textheight}{-2\baselineskip}
\fi

% fix the double index and bibliography on the table of contents
% in jsclasses (Japanese standard document classes)
\ifx\@jsc@uplatextrue\undefined\else
  \renewcommand{\theindex}{
    \cleardoublepage
    \phantomsection
    \py@OldTheindex
  }
  \renewcommand{\thebibliography}[1]{
    \cleardoublepage
    \phantomsection
    \py@OldThebibliography{1}
  }
\fi

% disable \@chappos in Appendix in pTeX
\ifx\kanjiskip\undefined\else
  \let\py@OldAppendix=\appendix
  \renewcommand{\appendix}{
    \py@OldAppendix
    \gdef\@chappos{}
  }
\fi

% Define literal-block environment
\RequirePackage{newfloat}
\DeclareFloatingEnvironment{literal-block}
\ifx\thechapter\undefined
  \SetupFloatingEnvironment{literal-block}{within=section,placement=h}
\else
  \SetupFloatingEnvironment{literal-block}{within=chapter,placement=h}
\fi
\SetupFloatingEnvironment{literal-block}{name=List}
% control caption around literal-block
\RequirePackage{capt-of}
\RequirePackage{needspace}
% if the left page space is less than \literalblockneedspace, insert page-break
\newcommand{\literalblockneedspace}{5\baselineskip}
\newcommand{\literalblockwithoutcaptionneedspace}{1.5\baselineskip}

% figure in table
\newenvironment{figure-in-table}[1][\linewidth]{%
  \def\@captype{figure}%
  \begin{minipage}{#1}%
}{\end{minipage}}
% store original \caption macro for use with figures in longtable and tabulary
\AtBeginDocument{\let\Sphinx@originalcaption\caption}
\newcommand*\figcaption
  {\ifx\equation$%$% this is trick to identify tabulary first pass
       \firstchoice@false\else\firstchoice@true\fi
   \Sphinx@originalcaption }