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% tex-ini-files 2016-04-14: luatexconfig.tex
% Load shared (PDF) settings in LuaTeX
\begingroup
\catcode`\{=1 %
\catcode`\}=2 %
\catcode`\#=6 %
% Enable one marker primitive and one for the looping
\directlua{
tex.enableprimitives("", {"pdfvariable", "unless"})
}%
% From plain.tex
\def\loop#1\repeat{\def\body{#1}\iterate}%
\def\iterate{%
\body
\let\next\iterate
\else
\let\next\relax
\fi
\next
}%
\let\repeat\fi
% The format of the data lines themselves is simple
\ifx\pdfvariable\undefined
\def\parse#1 = #2\relax{%
\directlua{tex.enableprimitives("", {"pdf#1"})}%
\expandafter\global\csname pdf#1\endcsname = #2 %
\expandafter\global\expandafter\let\csname pdf#1\endcsname\undefined
}%
\directlua{tex.enableprimitives("", {"pdfoutput"})}%
\global\pdfoutput = \ifx\dvimode\undefined 1\else 0\fi\relax
\global\let\pdfoutput\undefined
\else
\directlua{
tex.enableprimitives("", {"pageheight", "pagewidth", "outputmode"})
}%
\global\outputmode = \ifx\dvimode\undefined 1\else 0\fi\relax
\global\let\outputmode\undefined
\def\parse#1 = #2\relax{%
\expandafter\ifx\csname #1\endcsname\relax
\global\pdfvariable #1 = #2 %
\else
\expandafter\global\csname #1\endcsname = #2 %
\fi
}%
\fi
\def\storedpar{\par}%
% Read the raw data
\openin0=pdftexconfig.dat %
\loop\unless\ifeof0 %
\read0 to \line
\unless\ifx\line\storedpar
\if\relax\line\relax
\else
\expandafter\parse\line\relax
\fi
\fi
\repeat
\endgroup
% Tidy up primitives and DVI mode marker
\global\let\pageheight\undefined
\global\let\pagewidth\undefined
\global\let\pdfvariable\undefined
\global\let\unless\undefined
\global\let\dvimode\undefined
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