% graybox.sty  9.3.1989
% print fboxes with various backgrounds
%
%    graybox#1#2
%        #1 -> grayscale; valid values are 2, 10, 15, 30, 45, 70, 90, 100
%        #2 -> textargument (exactly like fbox)
%
%    patbox#1#2
%        #1 -> pattern; valid values are:
%              1: horizontal lines
%              2: vertical lines
%              3: diagonal lines
%              4: diagonal lines
%              5: square grid
%              6: diagonal grid
%        #2 -> textargument (exactly like fbox)
%
\makeatletter
%
%
%

\long\def\graybox#1#2{\leavevmode\setbox\@tempboxa\hbox{#2}\@tempdima\fboxrule
\advance\@tempdima \fboxsep \advance\@tempdima \dp\@tempboxa
  \hbox{\lower \@tempdima\hbox
 {\vbox{\special{defpoint=1(,)}%
         \hrule \@height \fboxrule
         \hbox{\vrule \@width \fboxrule \hskip\fboxsep
           \vbox{\vskip\fboxsep \box\@tempboxa\vskip\fboxsep}\hskip
                        \fboxsep\vrule \@width \fboxrule%
                        \special{defpoint=2(,)}\special{gray=#1}%
                        \special{fill=1/2}%
                    }\hrule \@height \fboxrule%
                  }}}}


\long\def\patbox#1#2{\leavevmode\setbox\@tempboxa\hbox{#2}\@tempdima\fboxrule
\advance\@tempdima \fboxsep \advance\@tempdima \dp\@tempboxa
  \hbox{\lower \@tempdima\hbox
 {\vbox{\special{defpoint=11(,)}%
         \hrule \@height \fboxrule
         \hbox{\vrule \@width \fboxrule \hskip\fboxsep
           \vbox{\vskip\fboxsep \box\@tempboxa\vskip\fboxsep}\hskip
                        \fboxsep\vrule \@width \fboxrule%
                        \special{defpoint=12(,)}\special{pattern=#1}%
                        \special{fill=11/12}%
                    }\hrule \@height \fboxrule%
                  }}}}

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