%%
%% This is file `prshowlabels.def',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% preview.dtx  (with options: `showlabels')
%% 
%% IMPORTANT NOTICE:
%% 
%% For the copyright see the source file.
%% 
%% Any modified versions of this file must be renamed
%% with new filenames distinct from prshowlabels.def.
%% 
%% For distribution of the original source see the terms
%% for copying and modification in the file preview.dtx.
%% 
%% This generated file may be distributed as long as the
%% original source files, as listed above, are part of the
%% same distribution. (The sources need not necessarily be
%% in the same archive or directory.)
%%    The preview style for extracting previews from LaTeX documents.
%%    Developed as part of AUCTeX <URL:https://www.gnu.org/software/auctex/>.
\ifPreview\else\expandafter\endinput\fi
\newbox\pr@labelbox
\def\pr@label#1{\pr@@label{#1}%
   \ifpr@setbox\z@{#1}%
     \global\setbox\pr@labelbox\vbox{\unvbox\pr@labelbox
      \box\z@}\egroup\fi}
\def\ifpr@setbox#1#2{%
  \romannumeral%
  \ifx\protect\@typeset@protect\ifpr@outer\else
   \z@\bgroup
   \protected@edef\next{#2}\@onelevel@sanitize\next
   \ifx\next\@empty\egroup\romannumeral\else
   \ifx\next\pr@lastlabel\egroup\romannumeral\else
   \global\let\pr@lastlabel\next
   \setbox#1\pr@boxlabel\pr@lastlabel
   \expandafter\expandafter\romannumeral\fi\fi\fi\fi
   \z@\iffalse\iftrue\fi}
\def\pr@boxlabel#1{\hbox{\normalfont
   \footnotesize\ttfamily\fboxsep0.4ex\relax\fbox{#1}}}
\def\pr@maketag#1{\pr@@maketag{#1}%
  \ifpr@setbox\z@{\df@label}%
      \global\setbox\pr@labelbox\vbox{%
         \hrule\@width\wd\z@\@height\z@
         \unvbox\pr@labelbox}%
        \wd\z@\z@\box\z@ \egroup\fi}
\g@addto@macro\pr@ship@start{%
  \global\setbox\pr@labelbox\box\voidb@x
  \xdef\pr@lastlabel{}%
  \global\let\pr@@label\label \let\label\pr@label
  \global\let\pr@@maketag\maketag@@@
  \let\maketag@@@\pr@maketag
}
\pr@addto@front\pr@ship@end{%
   \ifx \label\pr@label \global\let\label\pr@@label \fi
   \ifx \maketag@@@\pr@maketag
        \global\let\maketag@@@\pr@@maketag \fi
   \ifvoid\pr@labelbox
   \else \setbox\pr@box\hbox{%
         \box\pr@box\,\box\pr@labelbox}%
   \fi}
\endinput
%%
%% End of file `prshowlabels.def'.
