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\input showkeys.sty
\ifx\nullocplist\undefined
\RequirePackage{verbatim}
\def\@verb@year{\jobname.tmp}
\newwrite\verbatim@out
%% label swapping
\def\@lbibitem[#1]#2{\item[\@biblabel{#1}\hfill]\if@filesw
{\let\protect\noexpand
\immediate
\write\@auxout{\string\bibcite{#2}%
{#1\string\make@josa{#1}}}}\fi%
\llap{\smash{\SK@labelcolor\fbox{%
\normalfont\small\ttfamily#2}\quad}}\ignorespaces}
\def\SK@@label#1>#2\SK@{%
\toks@{#2}\edef\reserved@a{\the\toks@}%
\edef\reserved@a{\expandafter\strip@prefix\meaning\reserved@a}%
\immediate\openout\verbatim@out\@verb@year%
\immediate\write\verbatim@out{\reserved@a}%
\immediate\closeout\verbatim@out%
\def\verbatim@processline{%
{\setbox\@tempboxa=\hbox{\the\verbatim@line}%
\hsize=\wd\@tempboxa
\the\verbatim@line\par}}%
\setbox\@tempboxa=\vbox{\parskip=0pt\topsep=0pt\partopsep=0pt
\footnotesize\verbatiminput{\@verb@year}}%
\gdef\SK@lab{\smash{\SK@labelcolor\fbox{%
\normalfont\small\box\@tempboxa}}}%
\ifvmode
\if@inlabel
\global\setbox\@labels\hbox{%
\llap{\SK@lab\SK@lab@relax
\kern\@totalleftmargin\kern\marginparsep}%
\box\@labels}%
\else
\dimen@\prevdepth
\nointerlineskip
\ifinner
\skip@\lastskip\unskip
\advance\skip@\lastskip\unskip
\setbox\z@\lastbox
\ifvoid\z@
\llap{\SK@lab\SK@lab@relax\kern\marginparsep}%
\else
\hbox{\box\z@\kern\marginparsep\SK@labx}%
\fi
\vskip\skip@
\else
\llap{\SK@lab\SK@lab@relax\kern\marginparsep}%
\fi
\prevdepth\dimen@
\fi
\else
\csname SK@\@currenvir\endcsname
\ifSK@equation\else
\ifmmode
\SK@labx
\else
\ifinner
\rlap\SK@lab
\else
\vadjust{\llap{\SK@lab\kern\marginparsep}}%
\fi
\SK@lab@relax
\fi
\fi
\fi}
\def\SK@@ref#1>#2\SK@{%
\toks@{#2}\edef\reserved@a{\the\toks@}%
\edef\reserved@a{\expandafter\strip@prefix\meaning\reserved@a}%
\immediate\openout\verbatim@out \@verb@year
\immediate\write\verbatim@out{\reserved@a}%
\immediate\closeout\verbatim@out
\def\verbatim@processline{%
{\setbox\@tempboxa=\hbox{\the\verbatim@line}%
\hsize=\wd\@tempboxa
\the\verbatim@line\par}}%
\setbox\@tempboxa=\vbox{\parskip=0pt\topsep=0pt\partopsep=0pt
\footnotesize\verbatiminput{\@verb@year}\hrule}%
\leavevmode\vbox to\z@{%
\vss
\SK@refcolor
\rlap{\vrule\raise .75em\hbox{\box\@tempboxa}}}}
\fi
\endinput
%% End of file `showhkeys.sty'.
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