%&plain
\nopagenumbers
\newif\ifblankfont \blankfontfalse %\blankfonttrue

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% 
%% If necessary, change the font name/size within the curly brackets:
\def\myfont{calading}
%% 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\font\tblfont=\myfont
\font\littlerm=cmtt8

\def\today{\ifcase\month\or
  January\or February\or March\or April\or May\or June\or
  July\or August\or September\or October\or November\or December\fi
  \ \number\day, \number\year}
\newcount\hours \newcount\minutes \newcount\scratch
\def\now{\scratch=60 \hours=\time \divide\hours by\scratch
        \scratch=\hours \multiply\scratch by60
        \minutes=\time \advance\minutes by-\scratch
        \ifnum\hours<10 0\fi\the\hours:%
        \ifnum\minutes<10 0\fi\the\minutes}

\newcount\scr \scr=0
\newcount\scrr \scrr=0
\dimen8=\hsize \advance\dimen8 by-45pt \advance\dimen8 by-6.4pt
\divide\dimen8 by16
\def\.{\hskip1pt}\def\\{\vrule width0pt height13pt}
\def\adjustglyphend{\let\glyphend=\noboundary % the default
  \ifnum\scr<31 \let\glyphend=\relax\fi 
  \ifnum\scr=129 \let\glyphend=\relax\fi
  \ifnum\scr=18 \let\glyphend=\noboundary\fi
}

\newdimen\Vthickness \Vthickness=.5pt
\def\boxme#1{\vbox{\hrule height\Vthickness
        \hbox{\vrule width\Vthickness#1\vrule width\Vthickness}%
        \hrule height\Vthickness}}

%% The \tableentry macro originally tested for zero-widths.  It was
%% assumed that if the width of a character was zero, than the character
%% was on-existent, and vice-versa.  Unfortunately, many non-TeX fonts
%% poorly behaved---non-existent characters may have non-zero widths!
%% Inspection of the afm file may reveal non-existent characters by
%% virtue of the `.notdef' keyword, but who knows if this is a 
%% reliable test either?
\newif\ifnotdef % we'll test by the presence of .notdef
\newif\ifusingnotdefs \usingnotdefsfalse
\usingnotdefstrue
\def\notdeftests{% these tests are user defined!
  %\ifnum\scr<32 \notdeftrue \fi
  %\ifnum\scr=127 \notdeftrue \fi
}
\def\setnochar{\setbox0=\hbox to\dimen0{\hss$\times$\hss}}
\def\setachar{\setbox0=\hbox to\dimen0{\hss\tblfont\char\scr\glyphend\hss}}
\def\tableentry{%
        \adjustglyphend
        \setbox2=\hbox to\dimen8{\.\littlerm \the\scr\hss\vrule width0pt
        depth3pt
        \char\scr\glyphend\.}\dimen0=\wd2
        \setbox0=\hbox to\dimen8{\hss\tblfont\\\char\scr\glyphend\hss}%
        \ifblankfont\setbox0=\hbox to \wd0{\\\hss}\fi
        \notdeffalse % assume char is defined...
        %% \ifusingnotdefs 
        %%   \notdeftests
        %% \else 
        %%   \ifdim\wd0=0pt \notdeftrue\fi
        %% \fi
        %% \ifnotdef \setnochar \else \setachar \fi
        \setachar
        \vbox{\hrule\hbox{\vrule\vbox{\hbox to\dimen8{\vrule width0pt
                height 13pt\box0}\vskip6pt%
                \hbox to\dimen8{\hss \box2\hss}}\vrule}\hrule}\hskip3pt}
\newcount\nrows \nrows=16%15
\newcount\ncols \ncols=16
\def\tableline{\scrr=0 \hbox{\loop \tableentry 
        \global\advance\scr by 1 \advance\scrr by1 \ifnum\scrr<\ncols 
        \repeat}}


\dimen0=\dp\strutbox \advance\dimen0 by\Vthickness
\ifblankfont\centerline{\bf Blank Font Table}\else
\centerline{\bf Font Table for font \lower\dimen0\boxme{\
\strut\myfont\ }}\centerline{\littlerm Produced on \today\ at \now.}\fi
\bigskip

\newcount\thisrow \thisrow=0
\loop 
  \tableline \smallskip\advance\thisrow by1 
\ifnum\thisrow<\nrows \repeat

\bye

%%% Local Variables: 
%%% mode: plain-tex
%%% TeX-master: t
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