-cat >&3 <<'EOF'
-\documentclass[a4paper, landscape, 12pt]{article}
-\usepackage[utf8]{inputenc}
-\usepackage[T1]{fontenc}
-\usepackage[palatino, helvetica, courier, maths = cmr]{mdwfonts}
-\usepackage{graphicx}
-
-%% Report errors with enough context that we can debug them.
-\errorcontextlines=999
-
-%% Basic layout for the cards. We use the paragraph filling machinery, but
-%% don't actually need most of the trimmings.
-\parindent=0pt
-\parfillskip=0pt
-\pagestyle{empty}
-
-%% Page layout: try to use most of the page. The document class will already
-%% have set up the paper size, but we do the rest here.
-\hoffset=-1in \voffset=-1in
-\oddsidemargin=20mm
-\textwidth=\paperwidth \advance\textwidth by -2\oddsidemargin
-\topmargin=20mm
-\headheight=0pt \headsep=0pt
-\textheight=\paperheight \advance\textheight by -2\topmargin
-\AtBeginDocument{\special{papersize=\the\paperwidth,\the\paperheight}}
-
-%% Parameters for the cards and guide rules.
-\newdimen\cardwd \cardwd=82mm
-\newdimen\cardht \cardht=49mm
-\newdimen\guidelen \guidelen=10mm
-\newdimen\rulewd \rulewd=0.6pt
-
-%% Typesetting the secret as text. The macro \snarf TOKEN T0 T1 ... T7
-%% gathers T0 T1 ... T7 into a single argument and passes them to TOKEN, as
-%% long as T0 is not \relax. We use this to process the secret text in a
-%% continuation-passing style.
-\def\snarf#1#2{%
- \ifx#2\relax\let\next\empty%
- \else\def\next{\snarfdo#1#2}%
- \fi%
- \next%
-}
-\def\snarfdo#1#2#3#4#5#6#7#8#9{#1{#2#3#4#5#6#7#8#9}}
-
-%% Print the left and right halves of the line, with a separator. Use boxes
-%% for the lines so that TeX will work out the width of the enclosing vbox
-%% for us. The basic usage is \line TEXT \relax ... \relax, with eight
-%% \relax tokens: this is enough to complete both \snarf calls.
-\def\line{\snarf\lineleft}
-\def\lineleft#1{\hbox\bgroup#1 \snarf\lineright}
-\def\lineright#1{#1\egroup\line}
-
-%% Typeset a card containing a secret. Usage is \card{INDEX}{SECRET}.
-\def\card#1#2{%
- %%
- %% Make sure we're setting a paragraph.
- \leavevmode%
- %%
- %% Initial material: a stretchy space on the left.
- \hbox{}\nobreak\hfil%
- %%
- %% An alignment for the guide markers surrounding the actual card.
- \vbox{\halign{&##\cr%
- %%
- %% Top left guides.
- \vrule width \guidelen height \rulewd depth 0pt%
- \vrule width \rulewd depth 0pt height \guidelen%
- &%
- %%
- %% Top centre gap.
- \hfil%
- &%
- %%
- %% Top right guides.
- \vrule width \rulewd depth 0pt height \guidelen%
- \vrule width \guidelen height \rulewd depth 0pt%
- \cr%
- %%
- %% Left gap.
- &%
- %%
- %% The actual card.
- \vbox to \cardht{%
- %%
- %% We actually do more or less sensible typesetting. TeX will set the
- %% box width from the hsize, and we should leave a small margin all
- %% around.
- \parfillskip=0pt plus 1fil%
- \leftskip=1em \rightskip=1em%
- \hsize=\cardwd%
- %%
- %% The heading.
- \hrule height 0pt \prevdepth = 0pt%
- \medskip%
- {\large\bfseries\textsf{\keeper} secret #1/\total}%
- %%
- %% The QR-code and the text of the secret.
- \vfil%
- $%
- \vcenter{\hbox{\includegraphics[scale = 2.4]{#1.eps}}}%
- \hfil%
- \vcenter{\ttfamily%
- \line#2%
- \relax\relax\relax\relax\relax\relax\relax\relax%
- }%
- $%
- %%
- %% And we're done.
- \vfil%
- }%
- &%
- %%
- %% Right gap.
- \cr%
- %%
- %% Bottom left guides.
- \vrule width \guidelen depth \rulewd height 0pt%
- \vrule width \rulewd depth \guidelen height 0pt%
- &%
- %% Bottom centre gap.
- \hfil%
- &%
- %% Bottom right guides.
- \vrule width \rulewd depth \guidelen height 0pt%
- \vrule width \guidelen depth \rulewd height 0pt%
- \cr%
- %%
- %% Leave a small vertical space at the bottom to separate lines of cards.
- \strut \cr%
- }}%
- %%
- %% End material: a stretchy space to match the one at the start, and then
- %% allow a break.
- \nobreak\hfil\hbox{}%
- \penalty0%
-}
-EOF