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\luatexsuppresslongerror1%% sigh ...
%% Copyright (C) 2009-2014
%%
%%      by  Elie Roux      <elie.roux@telecom-bretagne.eu>
%%      and Khaled Hosny   <khaledhosny@eglug.org>
%%      and Philipp Gesang <philipp.gesang@alumni.uni-heidelberg.de>
%%
%% This file is part of Luaotfload.
%%
%%      Home:      https://github.com/lualatex/luaotfload
%%      Support:   <lualatex-dev@tug.org>.
%%
%% Luaotfload is under the GPL v2.0 (exactly) license.
%%
%% ----------------------------------------------------------------------------
%%
%% Luaotfload is free software; you can redistribute it and/or
%% modify it under the terms of the GNU General Public License
%% as published by the Free Software Foundation; version 2
%% of the License.
%%
%% Luaotfload is distributed in the hope that it will be useful,
%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
%% GNU General Public License for more details.
%%
%% You should have received a copy of the GNU General Public License
%% along with Luaotfload; if not, see <http://www.gnu.org/licenses/>.
%%
%% ----------------------------------------------------------------------------
%%

\documentclass{ltxdoc}

\makeatletter

\usepackage {metalogo,multicol,fancyvrb,xspace}
\usepackage [x11names] {xcolor}

\def \primarycolor   {DodgerBlue4} %%-> rgb  16  78 139 | #104e8b
\def \secondarycolor {Goldenrod4}  %%-> rgb 139 105 200 | #8b6914

\usepackage[
    bookmarks=true,
   colorlinks=true,
    linkcolor=\primarycolor,
     urlcolor=\secondarycolor,
    citecolor=\primarycolor,
     pdftitle={The Luaotfload package},
   pdfsubject={OpenType layout system for Plain TeX and LaTeX},
    pdfauthor={Elie Roux & Khaled Hosny & Philipp Gesang},
  pdfkeywords={luatex, lualatex, unicode, opentype}
]{hyperref}

\usepackage {fontspec}
\usepackage {unicode-math}

\setmainfont[
% Numbers     = OldStyle, %% buggy with font cache
  Ligatures   = TeX,
  BoldFont    = {Linux Libertine O Bold},
  ItalicFont  = {Linux Libertine O Italic},
  SlantedFont = {Linux Libertine O Italic},
]{Linux Libertine O}
\setmonofont[Ligatures=TeX,Scale=MatchLowercase]{Liberation Mono}
%setsansfont[Ligatures=TeX]{Linux Biolinum O}
\setsansfont[Ligatures=TeX,Scale=MatchLowercase]{Iwona Medium}
%setmathfont{XITS Math}

\usepackage{hologo}

\newcommand\TEX      {\TeX\xspace}
\newcommand\LUA      {Lua\xspace}
\newcommand\PDFTEX   {pdf\TeX\xspace}
\newcommand\LUATEX   {Lua\TeX\xspace}
\newcommand\XETEX    {\XeTeX\xspace}
\newcommand\LATEX    {\LaTeX\xspace}
\newcommand\LUALATEX {Lua\LaTeX\xspace}
\newcommand\CONTEXT  {Con\TeX t\xspace}
\newcommand\OpenType {\identifier{Open\kern-.25ex Type}\xspace}

%% \groupedcommand, with some omissions taken from syst-aux.mkiv
\let \handlegroupnormalbefore \relax
\let \handlegroupnormalafter  \relax

\protected \def \handlegroupnormal #1#2{%
  \bgroup % 1
  \def \handlegroupbefore {#1}%
  \def \handlegroupafter  {#2}%
  \afterassignment \handlegroupnormalbefore
  \let \next =
}

\def \handlegroupnormalbefore {%
  \bgroup % 2
  \handlegroupbefore
  \bgroup % 3
  \aftergroup \handlegroupnormalafter%
}

\def \handlegroupnormalafter {%
  \handlegroupafter
  \egroup % 3
  \egroup % 2
}

\let \groupedcommand \handlegroupnormal %% only the two arg version

\def \definehighlight [#1][#2]{%
  \ifcsname #1\endcsname\else
    \expandafter\def\csname #1\endcsname{%
      \leavevmode
      \groupedcommand {#2}\empty%
    }
  \fi%
}

%% old, simplistic definition: obsolete now that we have
%% \groupedcommand
%\def\definehighlight[#1][#2]%
 %{\ifcsname #1\endcsname\else
    %\expandafter\def\csname #1\endcsname%
      %{\bgroup#2\csname #1_indeed\endcsname}
    %\expandafter\def\csname #1_indeed\endcsname##1%
      %{##1\egroup}%
  %\fi}

\def\restoreunderscore{\catcode`\_=12\relax}

\definehighlight         [fileent][\ttfamily\restoreunderscore]         %% files, dirs
\definehighlight        [texmacro][\sffamily\itshape\textbackslash]     %% cs
\definehighlight     [luafunction][\sffamily\itshape\restoreunderscore] %% lua identifiers
\definehighlight      [identifier][\sffamily]                           %% names
\definehighlight          [abbrev][\rmfamily\scshape]                   %% acronyms
\definehighlight        [emphasis][\rmfamily\slshape]                   %% level 1 emph

\definehighlight       [Largefont][\Large]                              %% font size
\definehighlight       [smallcaps][\sc]                                 %% font feature
\definehighlight [nonproportional][\tt]                                 %% font switch

\newcommand*\email[1]{\href{mailto:#1}{#1}}

\renewcommand\partname{Part}%% gets rid of the stupid “file” heading

\usepackage{syntax}%% bnf for font request syntax

\usepackage{titlesec}

\def\movecountertomargin#1{\llap{\rmfamily\upshape#1\hskip2em}}
\def\zeropoint{0pt}
\titleformat \part
             {\normalsize\rmfamily\bfseries}
             {\movecountertomargin\thepart} \zeropoint {}
\titleformat \section
             {\normalsize\rmfamily\scshape}
             {\movecountertomargin\thesection} \zeropoint {}
\titleformat \subsection
             {\small\rmfamily\itshape}
             {\movecountertomargin\thesubsection} \zeropoint {}
\titleformat \subsubsection
             {\normalsize\rmfamily\upshape}
             {\movecountertomargin\thesubsubsection} \zeropoint {}

\usepackage{tocloft}
\renewcommand \cftpartfont   {\rmfamily\upshape}
\renewcommand \cftsecfont    {\rmfamily\upshape}
\renewcommand \cftsubsecfont {\rmfamily\upshape}
\setlength \cftbeforepartskip {1ex}
\setlength \cftbeforesecskip  {1ex}

\VerbatimFootnotes

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% structurals
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def \definestructural #1{%
  \expandafter \let \csname end#1\endcsname \relax

  \expandafter \def \csname begin#1\endcsname {%
    \@ifnextchar[{\csname begin#1indeed\endcsname}
                 {\csname begin#1indeed\endcsname[]}%
  }

  \expandafter \def \csname begin#1indeed\endcsname [##1]##2{%
    \edef \first {##1}%
    \ifx \first \empty
      \csname #1\endcsname [##2]{##2}%
    \else
      \csname #1\endcsname [\first]{##2}%
    \fi
  }
}

\definestructural {section}
\definestructural {subsection}
\definestructural {subsubsection}

\def \fakesection #1{\section*{#1}}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% inline verbatim
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% Context offers both \type{…} and \type<<…>>, but not an unbalanced
%% one that we could map directly onto Latex’s \verb|…|.

\usepackage {listings}
\lstset {
  basicstyle=\ttfamily,
}

%\let \inlinecode \lstinline
\protected \def \inlinecode {\lstinline}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% codelistings; this sucks hard since we lack access to buffers
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\newcount \othercatcode  \othercatcode 12
\newcount \activecatcode \othercatcode 13

\newluatexcatcodetable \vrbcatcodes
\setluatexcatcodetable \vrbcatcodes {%
  \luatexcatcodetable \CatcodeTableIniTeX
  \catcode  9 \othercatcode %% \tabasciicode
  \catcode 13 \othercatcode %% \endoflineasciicode
  \catcode 12 \othercatcode %% \formfeedasciicode
  \catcode 26 \othercatcode %% \endoffileasciicode
  \catcode 32 \othercatcode %% \spaceasciicode
}

\newluatexcatcodetable \literalcatcodes
\setluatexcatcodetable \literalcatcodes {%
  \luatexcatcodetable \CatcodeTableString
  \catcode 32 \activecatcode %% \spaceasciicode
}

\def \beginlisting {%
  \begingroup
    \luatexcatcodetable \vrbcatcodes
    \beginlistingindeed%
}

\directlua {
  local texprint   = tex.print
  local stringsub  = string.sub
  local backslash  = string.byte (0x5c)
  document         = document or { }
  document.printlines = function (buffer)
    for _, line in next, string.explode (buffer, "\noexpand\n") do
      if stringsub (line, 1, 1) == " " then
        line = backslash .. line
      end
      texprint (-1, line)
      texprint (-1, "")
    end
  end
}

\def \beginlistingindeed#1\endlisting{%
  \endgroup
  \begingroup
    \ttfamily
    \small
    \begin {quote}
      \bgroup
        \addfontfeature {RawFeature=-tlig;-liga}%% So one can’t just turn them all off at once using the ``Ligatures`` key?
        \luatexcatcodetable \literalcatcodes
        \obeyspaces
        \obeylines
        \directlua{document.printlines ([==[\detokenize {#1}]==])}
      \egroup
    \end {quote}
  \endgroup
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% enumerations and lists
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def \definelist [#1]#2{% name, itemcode
  \expandafter \def \csname begin#1\endcsname {%
    \begin {itemize}
      \let \normalitem = \item
      \def \altitem ####1{%
        \def \first {####1}%
        #2
      }
      \let \beginnormalitem \item
      \let \endnormalitem   \relax
      \let \beginaltitem    \altitem
      \let \endaltitem      \relax
  }

  \expandafter \def \csname end#1\endcsname {%
    \end {itemize}
  }
}

\definelist  [descriptions]{\normalitem {\textbf \first}\hfill\break}
\definelist   [definitions]{\normalitem {\fileent {\first}}}
\definelist      [filelist]{\normalitem {\fileent {\first}}\space--\hskip 1em}
\definelist  [functionlist]{\normalitem {\luafunction {\first}}\hfill\break}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% columns
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def \begindoublecolumns {\begin {multicols} {2}}
\def \enddoublecolumns   {\end {multicols}}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% alignment
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def \begincentered {\begin {center}}
\def \endcentered   {\end {center}}

\def \beginnarrower {\begin {quote}}
\def \endnarrower   {\end {quote}}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% special elements
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\let \beginfrontmatter \relax
\let \endfrontmatter   \relax

\def \beginabstractcontent {\begin {abstract}}
\def \endabstractcontent   {\end {abstract}}

\let \setdocumenttitle      \title
\let \setdocumentdate       \date
\let \setdocumentauthor     \author
\let \typesetdocumenttitle  \maketitle

\AtBeginDocument {%% seriously?
  \let \typesetcontent \tableofcontents%
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% floats
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%% syntax definition
\def \beginsyntaxfloat #1#2{%% #1:label #2:caption
  \begin {figure} [b]
    \edef \syntaxlabel  {#1}%
    \def \syntaxcaption {#2}%
    \setlength\grammarparsep{12pt plus 2pt minus 2pt}%
    \setlength\grammarindent{5cm}%
    \begingroup
      \small
      \begin {grammar}
}

\def \endsyntaxfloat {%
      \end {grammar}
    \endgroup
    \caption \syntaxcaption
    \label   \syntaxlabel
  \end {figure}
}

%% figures, e.g. the file graph
\def \figurefloat #1#2#3{%% #1:label #2:caption #3:file
  \begin {figure} [b]
    \caption {#2}%
    \includegraphics[width=\textwidth]{#3}%
    \label {#1}
  \end {figure}
}

%% tables
\def \tablefloat #1#2{%% #1:label #2:caption
  \begin {table} [t]
    \hrule
    \caption {#2}%
    \label {#1}
    \hrule
  \end {table}
}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% hyperlinks
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\protected \def \hyperlink{%
  \@ifnextchar[{\hyperlinkindeed}%
               {\hyperlinkindeed[]}%
}

\def \hyperlinkindeed [#1]#2{%
  \def \first {#1}%
  \ifx \first \empty
    \url {#2}%
  \else
    \href {#2}{#1}%
  \fi%
}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% tables
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Our tables aren’t anything special so we stick with “tabular” on the
%% Latex end.
%%
%% This is going to be largely incompatible with Context since format
%% specifications work quite differently (even between different
%% Context table variants).

\def \begintabulate [#1]#2\endtabulate{%
  \begingroup
    \let \beginrow  = \relax %% -> \NC in Context
    \let \newcell   = &      %% -> \NC
    \let \endrow    = \cr    %% -> \NC \NR
    \begin {tabular}{#1}%
      #2
    \end {tabular}
  \endgroup
}

\let \endtabulate \relax

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% escaped characters
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\let \charpercent   \textpercent
\let \charbackslash \textbackslash
\let \chartilde     \textasciitilde

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% main
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\makeatother

\newif \ifcontextmkiv \contextmkivfalse

\begin {document}
  \input {luaotfload-main.tex}
\end {document}