gcc/ada/doc/share/gnat.sty

% Needed to generate footers with total number of pages
\RequirePackage{lastpage}

% AdaCore specific maketitle
\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
}

% AdaCore specific headers/footers
% 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}
  }
}