%%
%% This is file `ifluatex.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% ifluatex.dtx  (with options: `package')
%% 
%% This is a generated file.
%% 
%% Copyright (C) 2007, 2009 by Heiko Oberdiek <oberdiek@uni-freiburg.de>
%% 
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3 of this license or (at your option) any later
%% version. The latest version of this license is in
%%    http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of
%% LaTeX version 2005/12/01 or later.
%% 
%% This work has the LPPL maintenance status "maintained".
%% 
%% This Current Maintainer of this work is Heiko Oberdiek.
%% 
%% This work consists of the main source file ifluatex.dtx
%% and the derived files
%%    ifluatex.sty, ifluatex.pdf, ifluatex.ins, ifluatex.drv,
%%    ifluatex-test1.tex, ifluatex-test2.tex, ifluatex-test3.tex.
%% 
\begingroup
  \catcode44 12 % ,
  \catcode45 12 % -
  \catcode46 12 % .
  \catcode58 12 % :
  \catcode64 11 % @
  \expandafter\let\expandafter\x\csname ver@ifluatex.sty\endcsname
  \ifcase 0%
    \ifx\x\relax % plain
    \else
      \ifx\x\empty % LaTeX
      \else
        1%
      \fi
    \fi
  \else
    \catcode35 6 % #
    \catcode123 1 % {
    \catcode125 2 % }
    \expandafter\ifx\csname PackageInfo\endcsname\relax
      \def\x#1#2{%
        \immediate\write-1{Package #1 Info: #2.}%
      }%
    \else
      \def\x#1#2{\PackageInfo{#1}{#2, stopped}}%
    \fi
    \x{ifluatex}{The package is already loaded}%
    \endgroup
    \expandafter\endinput
  \fi
\endgroup
\begingroup
  \catcode35 6 % #
  \catcode40 12 % (
  \catcode41 12 % )
  \catcode44 12 % ,
  \catcode45 12 % -
  \catcode46 12 % .
  \catcode47 12 % /
  \catcode58 12 % :
  \catcode64 11 % @
  \catcode123 1 % {
  \catcode125 2 % }
  \expandafter\ifx\csname ProvidesPackage\endcsname\relax
    \def\x#1#2#3[#4]{\endgroup
      \immediate\write-1{Package: #3 #4}%
      \xdef#1{#4}%
    }%
  \else
    \def\x#1#2[#3]{\endgroup
      #2[{#3}]%
      \ifx#1\@undefined
        \xdef#1{#3}%
      \fi
      \ifx#1\relax
        \xdef#1{#3}%
      \fi
    }%
  \fi
\expandafter\x\csname ver@ifluatex.sty\endcsname
\ProvidesPackage{ifluatex}%
  [2009/04/10 v1.1 Provides the ifluatex switch (HO)]
\begingroup
  \catcode123 1 % {
  \catcode125 2 % }
  \def\x{\endgroup
    \expandafter\edef\csname ifluatex@AtEnd\endcsname{%
      \catcode35 \the\catcode35\relax
      \catcode64 \the\catcode64\relax
      \catcode123 \the\catcode123\relax
      \catcode125 \the\catcode125\relax
    }%
  }%
\x
\catcode35 6 % #
\catcode64 11 % @
\catcode123 1 % {
\catcode125 2 % }
\def\TMP@EnsureCode#1#2{%
  \edef\ifluatex@AtEnd{%
    \ifluatex@AtEnd
    \catcode#1 \the\catcode#1\relax
  }%
  \catcode#1 #2\relax
}
\TMP@EnsureCode{10}{12}% ^^J
\TMP@EnsureCode{39}{12}% '
\TMP@EnsureCode{40}{12}% (
\TMP@EnsureCode{41}{12}% )
\TMP@EnsureCode{44}{12}% ,
\TMP@EnsureCode{45}{12}% -
\TMP@EnsureCode{46}{12}% .
\TMP@EnsureCode{47}{12}% /
\TMP@EnsureCode{58}{12}% :
\TMP@EnsureCode{61}{12}% =
\TMP@EnsureCode{94}{7}% ^
\TMP@EnsureCode{96}{12}% `
\begingroup
  \expandafter\ifx\csname ifluatex\endcsname\relax
  \else
    \edef\i/{\expandafter\string\csname ifluatex\endcsname}%
    \expandafter\ifx\csname PackageError\endcsname\relax
      \def\x#1#2{%
        \edef\z{#2}%
        \expandafter\errhelp\expandafter{\z}%
        \errmessage{Package ifluatex Error: #1}%
      }%
      \def\y{^^J}%
      \newlinechar=10 %
    \else
      \def\x#1#2{%
        \PackageError{ifluatex}{#1}{#2}%
      }%
      \def\y{\MessageBreak}%
    \fi
    \x{Name clash, \i/ is already defined}{%
      Incompatible versions of \i/ can cause problems,\y
      therefore package loading is aborted.%
    }%
    \endgroup
    \ifluatex@AtEnd
    \expandafter\endinput
  \fi
\endgroup
\begingroup
  \expandafter\ifx\csname newif\endcsname\relax
    \def\x#1#2{#1}%
  \else
    \def\x#1#2{#2}%
  \fi
\expandafter\endgroup\x
{%
  \let\ifluatex\iffalse
  \def\luatextrue{%
    \let\ifluatex\iftrue
  }%
  \def\luatexfalse{%
    \let\luatexfalse
  }%
}{%
  \csname newif\endcsname\ifluatex
}
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname luatexversion\endcsname\relax
\else
  \luatextrue
\fi
\ifluatex
\else
  \begingroup\expandafter\expandafter\expandafter\endgroup
  \expandafter\ifx\csname directlua\endcsname\relax
  \else
    \luatextrue
    \begingroup
      \newlinechar=10 %
      \endlinechar=\newlinechar %
      \ifcase0%
          \directlua{%
            if tex.enableprimitives then
              tex.enableprimitives('ifluatex', {'luatexversion'})
            else
              tex.print('1')
            end
          }%
          \ifx\ifluatexluatexversion\@undefined 1\fi %
          \relax %
        \global\let\luatexversion\ifluatexluatexversion
      \else %
        \expandafter\ifx\csname PackageError\endcsname\relax %
          \def\PackageError#1#2#3{%
            \errhelp{#3}%
            \errmessage{Package `#1' Error: #2}%
          }%
        \fi %
        \PackageError{ifluatex}{%
          Missing \string\luatexversion%
        }{%
          Update LuaTeX.%
        }%
      \fi %
    \endgroup %
  \fi
\fi
\begingroup
  \expandafter\ifx\csname PackageInfo\endcsname\relax
    \def\x#1#2{%
      \immediate\write-1{Package #1 Info: #2.}%
    }%
  \else
    \let\x\PackageInfo
    \expandafter\let\csname on@line\endcsname\empty
  \fi
  \x{ifluatex}{LuaTeX \ifluatex\else not \fi detected}%
\endgroup
\ifluatex@AtEnd
\endinput
%%
%% End of file `ifluatex.sty'.
