2015-02-20 Arnaud Charlet <charlet@adacore.com>

[official-gcc.git] / gcc / ada / doc / share / 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}}

\RequirePackage{textcomp}
\RequirePackage{fancybox}
\RequirePackage{titlesec}
\RequirePackage{tabulary}
\RequirePackage{amsmath} % for \text
\RequirePackage{makeidx}
\RequirePackage{framed}
\RequirePackage{ifthen}
\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}
\RequirePackage{lastpage}
% 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}

% Required to preserve indentation settings in minipage constructs
% (otherwise parskip is set to 0 by default. minipagerestore is called
% each time we enter a minipage environment)
\newcommand{\@minipagerestore}{\setlength{\parskip}{\medskipamount}}

% Redefine these colors to something not white if you want to have colored
% background and border for code examples.
\definecolor{VerbatimColor}{rgb}{1,1,1}
\definecolor{VerbatimBorderColor}{rgb}{1,1,1}

% 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
\ifx\kanjiskip\undefined\else
  \ifx\Gin@driver{dvipdfmx.def}\undefined\else
    \newcount\pdfoutput\pdfoutput=0
  \fi
\fi

% For graphicx, check if we are compiling under latex or pdflatex.
\ifx\pdftexversion\undefined
  \usepackage{graphicx}
\else
  \usepackage[pdftex]{graphicx}
\fi

% 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

\renewcommand{\maketitle}{%
  \begin{titlepage}%
    \let\footnotesize\small
    \let\footnoterule\relax
    \rule{\textwidth}{1pt}%
    \ifsphinxpdfoutput
      \begingroup
      % These \defs are required to deal with multi-line authors; it
      % changes \\ to ', ' (comma-space), making it pass muster for
      % generating document info in the PDF file.
      \def\\{, }
      \def\and{and }
      \pdfinfo{
        /Author (\@author)
        /Title (\@title)
      }
      \endgroup
    \fi
    \begin{flushright}%
      \sphinxlogo%
      {\rm\Huge \@title \par}%
      {\em\LARGE\py@HeaderFamily \py@release\releaseinfo \par}
      \vfill
      {\LARGE\py@HeaderFamily
        \par}
      \vfill\vfill
      {\large
       \@date \par
       \vfill
       \py@authoraddress \par
      }%
    \end{flushright}%\par
    \@thanks
  \end{titlepage}%
  \cleardoublepage%
  \setcounter{footnote}{0}%
  \let\thanks\relax\let\maketitle\relax
}


% 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\ of \pageref*{LastPage}}}
    \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\ of \pageref*{LastPage}}}
    \fancyfoot[LO,RE]{{\py@HeaderFamily \GNATFullDocumentName}}
    \fancyhead[LE,RO]{{\py@HeaderFamily \@title\ \GNATVersion}}
    \renewcommand{\headrulewidth}{0.0pt}
    \renewcommand{\footrulewidth}{0.4pt}
  }
}

% Some custom font markup commands.
%
\newcommand{\strong}[1]{{\textbf{#1}}}
\newcommand{\code}[1]{\texttt{#1}}
\newcommand{\bfcode}[1]{\code{\bfseries#1}}
\newcommand{\email}[1]{\textsf{#1}}

% Redefine the Verbatim environment to allow border and background colors.
% The original environment is still used for verbatims within tables.
\let\OriginalVerbatim=\Verbatim
\let\endOriginalVerbatim=\endVerbatim

% Play with vspace to be able to keep the indentation.
\newlength\distancetoright
\def\mycolorbox#1{%
  \setlength\distancetoright{\linewidth}%
  \advance\distancetoright -\@totalleftmargin %
  \fcolorbox{VerbatimBorderColor}{VerbatimColor}{%
  \begin{minipage}{\distancetoright}%
    #1
  \end{minipage}%
  }%
}
\def\FrameCommand{\mycolorbox}

\renewcommand{\Verbatim}[1][1]{%
  % list starts new par, but we don't want it to be set apart vertically
  \bgroup\parskip=0pt%
  \smallskip%
  % The list environement is needed to control perfectly the vertical
  % space.
  \list{}{%
  \setlength\parskip{0pt}%
  \setlength\itemsep{0ex}%
  \setlength\topsep{0ex}%
  \setlength\partopsep{0pt}%
  \setlength\leftmargin{0pt}%
  }%
  \item\MakeFramed {\FrameRestore}%
     \small%
    \OriginalVerbatim[#1]%
}
\renewcommand{\endVerbatim}{%
    \endOriginalVerbatim%
  \endMakeFramed%
  \endlist%
  % close group to restore \parskip
  \egroup%
}


% \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}
\titleformat{\paragraph}{\small\py@HeaderFamily}%
            {\py@TitleColor}{0em}{\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
  \begin{tabular}{lcl}
}{%
  \end{tabular}
}

% Notices / Admonitions
%
\newlength{\py@noticelength}

\newcommand{\py@heavybox}{
  \setlength{\fboxrule}{1pt}
  \setlength{\fboxsep}{6pt}
  \setlength{\py@noticelength}{\linewidth}
  \addtolength{\py@noticelength}{-2\fboxsep}
  \addtolength{\py@noticelength}{-2\fboxrule}
  %\setlength{\shadowsize}{3pt}
  \noindent\Sbox
  \minipage{\py@noticelength}
}
\newcommand{\py@endheavybox}{
  \endminipage
  \endSbox
  \fbox{\TheSbox}
}

\newcommand{\py@lightbox}{{%
  \setlength\parskip{0pt}\par
  \noindent\rule[0ex]{\linewidth}{0.5pt}%
  \par\noindent\vspace{-0.5ex}%
  }}
\newcommand{\py@endlightbox}{{%
  \setlength{\parskip}{0pt}%
  \par\noindent\rule[0.5ex]{\linewidth}{0.5pt}%
  \par\vspace{-0.5ex}%
  }}



% 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}{GNAT}
\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\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,destlabel,
                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}

% From docutils.writers.latex2e
\providecommand{\DUspan}[2]{%
  {% group ("span") to limit the scope of styling commands
    \@for\node@class@name:=#1\do{%
    \ifcsname docutilsrole\node@class@name\endcsname%
      \csname docutilsrole\node@class@name\endcsname%
    \fi%
    }%
    {#2}% node content
  }% close "span"
}

\providecommand*{\DUprovidelength}[2]{
  \ifthenelse{\isundefined{#1}}{\newlength{#1}\setlength{#1}{#2}}{}
}

\DUprovidelength{\DUlineblockindent}{2.5em}
\ifthenelse{\isundefined{\DUlineblock}}{
  \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}
}{}


% 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

% do not use \@chappos in Appendix in pTeX
\ifx\kanjiskip\undefined\else
  \renewcommand{\appendix}{\par
    \setcounter{chapter}{0}
      \setcounter{section}{0}
      \gdef\@chapapp{\appendixname}
      \gdef\@chappos{}
      \gdef\thechapter{\@Alph\c@chapter}
  }
\fi