% \iffalse meta-comment
%
%  Copyright (c) 2010 ASCII MEDIA WORKS
%  Copyright (c) 2016 Japanese TeX Development Community
%
%  This file is part of the pLaTeX2e system (community edition).
%  -------------------------------------------------------------
%
% \fi
%
%
% \iffalse
%
% 2016/08/21 v2.0c
%     - Support pdfLaTeX, XeLaTeX and LuaLaTeX.
% 2016/04/15 v2.0b
%     - Simplify \@keytop.
% 2016/03/13 v2.0a
%     - Avoid arithmetic overflow in \mask/\maskbox.
% 2016/03/12 v2.0
%     - Converted to DTX file.
%     - Remove extra spaces before/after \keytop[c]{...}.
%     - Adjust parameters for \keytop.
% 2016/03/06
%     - Set \tbaselineshift in itembox str and shadebox env.
%     - Delete \tbaselineshift\z@ in \mask and \Maskbox.
%     - Save \ybaselineshift.
% 2016/03/04
%     - boxnote, shadebox begin with \par\vspace{.3\baselineskip}.
%     - Adjust the width of shadebox environment.
% 2016/02/21 (many thanks to ZR for suggestions in bxascmac)
%     - Made compatible with pict2e (tate-gumi not supported yet).
%     - Adjust parameters for drawing rounded rectangles.
%     - Fix bugs in \maskbox and \Maskbox.
% 2006/07/14 (ST): itembox, screen environment bug fix.
% 2002/04/01 (KN): ASCII logo macros
% 1998/11/27 (KN and FTEXers): itembox
% 1998/02/27 (KN): set \tbaselineshift in minipage environment.
%
% \fi
%
% \iffalse
%<*ascmac>
%% wrapper for tascmac.sty
%%
%</ascmac>
%<*tascmac>
%% "tascmac" document style option for tate gumi.
%%
%% Original version:
%%   Copyright (C) by 1993, ASCII Corporation & Impress Corporation.
%%   (Last update: 2006/07/14)
%% Modified by Japanese TeX Development Community, since 2016.
%%
%% (ChangeLog has moved to the source file ``ascmac.dtx'')
%%
%</tascmac>
%<ascmac|tascmac>\NeedsTeXFormat{LaTeX2e}
%<*driver>
\NeedsTeXFormat{pLaTeX2e}
\ProvidesFile{ascmac.dtx}
%</driver>
%<tascmac>\ProvidesPackage{tascmac}
%<ascmac>\ProvidesPackage{ascmac}
  [2016/08/21 v2.0c
%<driver|tascmac>  ascmac package (community edition)
%<ascmac>  ascmac wrapper (community edition)
  ]
%<*driver>
\documentclass{jltxdoc}
\usepackage{ascmac}
\GetFileInfo{ascmac.dtx}
\title{The \textsf{ascmac} package \fileversion}
\author{Japanese \TeX\ Development Community}
\date{$B:n@.F|!'(B\filedate}
\begin{document}
  \maketitle
  \DocInput{\filename}
\end{document}
%</driver>
% \fi
%
% \tableofcontents
%
% \section{$B$O$8$a$K(B}
%
% \textsf{ascmac}$B%Q%C%1!<%8$O!"(B\LaTeXe{}$B$NI8=`5!G=$NHO0O$G!"?^$d7S@~$G(B
% $B0O$s$@%\%C%/%9$r=PNO$9$kL?Na$J$I$rDs6!$7$^$9!#(B\textsf{ascmac}$B%Q%C%1!<%8(B
% $B$N<BBN$O(B\textsf{tascmac}$B%Q%C%1!<%8$G$9$,!"$3$l$O$b$H$b$H8E$$(Bp\LaTeX{}$B$G(B
% $BG[I[$5$l$F$$$?2#AH@lMQ(B\textsf{ascmac}$B%Q%C%1!<%8$H!"$=$l$r=DAH$KBP1~$5$;(B
% $B$?(B\textsf{tascmac}$B%Q%C%1!<%8$rE}9g$7$?L>;D$G$9!#(B
%
% $B$3$N%I%-%e%a%s%H$O!"%"%9%-!<$K$h$C$FG[I[$5$l$F$$$k(B 2006/07/14 $B%P!<%8%g%s(B
% $B$+$iGI@8$7$F!"F|K\8l(B\TeX{}$B3+H/%3%_%e%K%F%#$K$h$C$F3+H/$5$l$F$$$k%P!<%8%g%s(B
% $B$N$?$a$K?7$?$K=q$+$l$^$7$?!#%3%_%e%K%F%#HG$G$O!"%*%j%8%J%k$N%"%9%-!<HG$N(B
% $B%3!<%I$r85$K!"$$$/$D$+$N%P%0=$@5$HB>$N%Q%C%1!<%8$H$N8_49@-$r2~A1$7$^$7$?!#(B
% $B$^$?!"(Bv2.0c$B0J9_$G$O(Bpdf\LaTeX{}$B$J$I$N%(%s%8%s$b%5%]!<%H$7$^$7$?!#(B
%
% \section{$B;H$$$+$?(B}
%
% \subsection{$B4D6-7?$NL?Na(B}
%
% \textsf{ascmac}$B%Q%C%1!<%8$,Ds6!$9$k4D6-7?$NL?Na$O(B4$B<oN`$"$j$^$9!#$=$l$>$l(B
% $B%F%-%9%H$J$I$r7S@~OH$G0O$s$G=PNO$7$^$9!#(B
%
% $B$3$l$i$N4D6-$O!"$9$Y$F2#I}$,$=$N;~E@$G$N(B |\linewidth| $B$NCM$K$J$j$^$9$N(B
% $B$G!"%\%C%/%9$NI}$rJQ99$7$?$$>l9g$O(B |minipage| $B4D6-$J$I$G0O$s$G$/$@$5$$!#(B
% $B=D$ND9$5$O!"<+F0E*$KFbMF$K9g$o$;$FD4@0$5$l$^$9!#(B \medskip
%
% \DescribeEnv{boxnote}
% |boxnote| $B4D6-$O!"GK$C$?%a%bMQ;f$N$h$&$JJ70O5$$N%\%C%/%9$r:n$j$^$9!#(B
% $BGK$C$?$h$&$J7A$N7S@~$O!"(Bascgrp$B%U%)%s%H$r;H$C$F<B8=$5$l$F$$$^$9!#(B
%
% \begin{boxnote}
% $B%\%C%/%9%N!<%H4D6-$G$9!#(B
% \end{boxnote}
% $B$O!"0J2<$NF~NO$+$iF@$i$l$^$9!#(B
%\begin{verbatim}
% \begin{boxnote}
% $B%\%C%/%9%N!<%H4D6-$G$9!#(B
% \end{boxnote}
%\end{verbatim}
%
% \DescribeEnv{screen}
% |screen| $B4D6-$O!";M6y$,4]$$0O$_OH$NCf$K%F%-%9%H$rF~$l$^$9!#(B
% $B%*%W%7%g%s0z?t$H$7$F(B |0| $B$+$i(B |8| $B$N@0?tCM$r;XDj$9$l$P!";M6y$N4]$_$N(B
% $B6q9g$rJQ99$9$k$3$H$,$G$-$^$9!#@0?tCM$rBg$-$/$9$k$K$D$l$F4]$_$O>.$5$/(B
% $B$J$C$F$$$-$^$9!#>JN,$7$?>l9g$O(B |0| $B$H$_$J$5$l$^$9!#(B
%
% \begin{screen}
% $B;M6y$,4]$$0O$_OH$G$9!#(B
% \end{screen}
% \begin{screen}[4]
% $B;M6y$,4]$$0O$_OH$G$9!#(B
% \end{screen}
% $B$O!"0J2<$NF~NO$+$iF@$i$l$^$9!#(B
%\begin{verbatim}
% \begin{screen}
% $B;M6y$,4]$$0O$_OH$G$9!#(B
% \end{screen}
% \begin{screen}[4]
% $B;M6y$,4]$$0O$_OH$G$9!#(B
% \end{screen}
%\end{verbatim}
%
% \DescribeEnv{itembox}
% |itembox| $B4D6-$O(B |screen| $B4D6-$K;w$F$$$^$9$,!">eC<$N7S@~$N$H$3$m$K%?%$%H%k(B
% $B$r=PNO$9$k$3$H$,$G$-$^$9!#$^$?!"%*%W%7%g%s0z?t(B |l|, |c|, |r| $B$G%?%$%H%k(B
% $B$N=PNO0LCV$r:8!"Cf1{!"1&$H;XDj$G$-$^$9!#>JN,$7$?>l9g$OCf1{$K$J$j$^$9!#(B
%
% \begin{itembox}[l]{$B%?%$%H%k(B}
% $B9`L\%\%C%/%9$G$9!#(B
% \end{itembox}
% $B$O!"0J2<$NF~NO$+$iF@$i$l$^$9!#(B
%\begin{verbatim}
% \begin{itembox}[l]{$B%?%$%H%k(B}
% $B9`L\%\%C%/%9$G$9!#(B
% \end{itembox}
%\end{verbatim}
%
% \DescribeEnv{shadebox}
% |shadebox| $B4D6-$O!"1FIU$-%\%C%/%9$NCf$K%F%-%9%H$rF~$l$^$9!#(B
% $B1F$NI}$O(B |\shaderule| $B%Q%i%a!<%?$G5,Dj$5$l!"%G%U%)%k%H$O(B5pt$B$G$9!#(B
%
% \begin{shadebox}
% $B1FIU$-$N%\%C%/%9$G$9!#(B
% \end{shadebox}
% $B$O!"0J2<$NF~NO$+$iF@$i$l$^$9!#(B
%\begin{verbatim}
% \begin{shadebox}
% $B1FIU$-$N%\%C%/%9$G$9!#(B
% \end{shadebox}
%\end{verbatim}
%
% \subsection{$BLV3]$1L?Na(B}
%
% $BLV3]$1$r$9$kL?Na$,(B3$B<oN`MQ0U$5$l$F$$$^$9!#(B|\mask| $BL?Na$O!"0z?t$NFbMF$NItJ,(B
% $B$KLV$r3]$1$^$9!#(B|\maskbox| $BL?Na$H(B |\Maskbox| $BL?Na$O!"I}$H9b$5$r;XDj$7$F(B
% $BLV3]$1$9$k$3$H$,$G$-$^$9!#$=$7$F!"(B|\maskbox| $BL?Na$H(B |\Maskbox| $BL?Na$N0c$$(B
% $B$O!"8e<T$N$_%\%C%/%9$N<~$j$K7S@~$r0z$/$H$$$&E@$G$9!#(B
%
% $B$3$l$i$NL?Na$O!"$$$:$l$b(Bascgrp$B%U%)%s%H$K<}O?$5$l$F$$$kLV3]$1%Q%?!<%s$N(B
% $BJ8;z$rJB$Y$k$3$H$GLV3]$1$r<B8=$7$F$$$^$9!#(B
%
% \makeatletter
% \begin{table}[htbp]
%   \centering
%   \begin{tabular}{llll}
%     A = {\@ascgrp A} & B = {\@ascgrp B} & C = {\@ascgrp C} & D = {\@ascgrp D} \\
%     E = {\@ascgrp E} & F = {\@ascgrp F} & G = {\@ascgrp G} & H = {\@ascgrp H} \\
%     I = {\@ascgrp I} & J = {\@ascgrp J} & K = {\@ascgrp K} &
%   \end{tabular}
% \end{table}
% \makeatother
%
% \DescribeMacro{\mask}
% |\mask| $BL?Na$O!"Bh(B1$B0z?t$,LV3]$1$r$9$kFbMF$G!"Bh(B2$B0z?t$,LV3]$1%Q%?!<%s$r(B
% $B<($95-9f!J(BA$B$+$i(BK$B!K$G$9!#(B
%
% \begin{center}
% \mask{$BLV3]$1Nc(B1}{A} \hfil \mask{$BLV3]$1Nc(B2}{C}
% \end{center}
% $B$O!"0J2<$NF~NO$+$iF@$i$l$^$9!#(B
%\begin{verbatim}
% \mask{$BLV3]$1Nc(B1}{A} \hfil \mask{$BLV3]$1Nc(B2}{C}
%\end{verbatim}
%
% \DescribeMacro{\maskbox}
% |\maskbox| $BL?Na$O(B5$B$D$N0z?t$r;}$A!"$=$l$>$l%\%C%/%9$NI}!"9b$5!"(B
% $BLV3]$1%Q%?!<%s!"=PNO0LCV!"LV3]$1$r$9$kFbMF$G$9!#=PNO0LCV$O(B |l|, |c|, |r| $B$N(B
% $B$$$:$l$+$G!"$=$l$>$l:8!"Cf1{!"1&$K=PNO$7$^$9!#(B
%
% \begin{center}
% \maskbox{25em}{4em}{E}{c}{$BI}$r;XDj$7$?LV3]$1%\%C%/%9(B}
% \end{center}
% $B$O!"0J2<$NF~NO$+$iF@$i$l$^$9!#(B
%\begin{verbatim}
% \maskbox{25em}{4em}{E}{c}{$BI}$r;XDj$7$?LV3]$1%\%C%/%9(B}
%\end{verbatim}
%
% \DescribeMacro{\Maskbox}
% |\Maskbox| $BL?Na$O(B |\maskbox| $BL?Na$HF1MM$N0z?t$r;}$A$^$9$,!"LV3]$1$r$9$kFbMF$N(B
% $B;XDj$NA0!"$9$J$o$A(B5$BHVL\$N0z?t$H$7$F!"%\%C%/%9$r0O$`7S@~$NB@$5$b;XDj$7$^$9!#(B
% $B$7$?$,$C$F!"A4It$G(B6$B$D$N0z?t$r;}$A$^$9!#(B
%
% \begin{center}
% \Maskbox{30em}{4em}{A}{c}{1pt}{$BI}$r;XDj$7$?7S@~IU$-LV3]$1%\%C%/%9(B}
% \end{center}
% $B$O!"0J2<$NF~NO$+$iF@$i$l$^$9!#(B
%\begin{verbatim}
% \Maskbox{30em}{4em}{A}{c}{1pt}{$BI}$r;XDj$7$?7S@~IU$-LV3]$1%\%C%/%9(B}
%\end{verbatim}
%
% \subsection{$B$=$NB>$NL?Na(B}
%
% \DescribeMacro{\keytop}
% |\keytop| $B%3%^%s%I$O!"%-!<%\!<%I>e$NJ8;z$r<($9$H$-$J$I$KJXMx$G$9!#(B
%
% \begin{table}[htbp]
%   \centering
%   \begin{tabular}{cc}
%     $BF~NO(B          & $B=PNO(B        \\
%     |\keytop{A}|  & \keytop{A}  \\
%     |\keytop{$B$"(B}| & \keytop{$B$"(B}
%   \end{tabular}
% \end{table}
%
% \DescribeMacro{\yen}
% \DescribeMacro{\return}
% \DescribeMacro{\Return}
% $B1_5-9f$r=PNO$9$k(B |\yen| $BL?Na$O!"(BY$B$H(B=$B$r=E$M9g$o$;$F=PNO$7$F$$$^$9!#(B
% $B2~9T5-9f$O(B |\return| $B$H(B |\Return| $B$G$9!#2~9T5-9f$O(Bascgrp$B%U%)%s%H(B
% $B$rMQ$$$F$$$^$9!#(B
%
% \begin{table}[htbp]
%   \centering
%   \begin{tabular}{cc}
%     $BF~NO(B          & $B=PNO(B        \\
%     |\yen|        & \yen        \\
%     |\return|     & \return     \\
%     |\Return|     & \Return
%   \end{tabular}
% \end{table}
%
% \DescribeMacro{\ascii}
% \DescribeMacro{\Ascii}
% \DescribeMacro{\ASCII}
% $B%"%9%-!<%3!<%]%l!<%7%g%s$N%m%4$r=PNO$9$kL?Na$G$9!#(B
% $B%5%$%:$O(B3$B<oN`MQ0U$5$l$F$$$^$9!#(B
%
% \ascii \hfil \Ascii \hfil \ASCII
%
%
% \StopEventually{}
%
% \section{$B%3!<%I(B}
%
% \textsf{ascmac}$B%Q%C%1!<%8$O(B\textsf{tascmac}$B%Q%C%1!<%8$N%i%C%Q!<$G$9!#(B
%    \begin{macrocode}
%<*ascmac>
\RequirePackage{tascmac}
%</ascmac>
%    \end{macrocode}
%
% $B=>Mh!"(B\textsf{tascmac}$B%Q%C%1!<%8$NF0:n>r7o$O!"(Bp\LaTeXe{}$B$G$7$?!#(B
% $B$7$+$7!"(Bcommunity edition$B$G$O!"%P!<%8%g%s(Bv2.0c$B0J9_$G$[$+$N%(%s%8%s$b(B
% $B%5%]!<%H$9$k$3$H$K$7$^$7$?!#(B
%    \begin{macrocode}
%<*tascmac>
%%
%% Originally `ascmac' and `tascmac' can be used only in
%% pLaTeX, upLaTeX or LuaLaTeX with LuaTeX-ja support.
%% We (texjporg) started to support other engines, such as
%% pdfLaTeX, XeLaTeX and LuaLaTeX (even without LuaTeX-ja).
%%
\newif\ifascmac@ptex \ascmac@ptextrue
\ifx\kanjiskip\@undefined
  \@ifpackageloaded{luatexja}{%
    \PackageInfo{tascmac}{%
      Patch from LuaTeX-ja will be applied}%
  }{%
    \PackageInfo{tascmac}{%
      Assuming pdfLaTeX, XeLaTeX or LuaLaTeX}%
    \ascmac@ptexfalse
  }%
\fi
%    \end{macrocode}
%
% (u)p\LaTeXe{}$B$H(BLua\TeX-ja$B0J30$r%5%]!<%H$9$k$?$a$N%H%j%C%/$G$9!#(B
% $B!V(BQ$B!W$H$$$&J8;z$N%+%F%4%j!<%3!<%I$r$3$N%Q%C%1!<%8$rFI$s$G$$$k4V$@$1(B
% $BJQ99$7!"(B(u)p\LaTeXe{}$B$^$?$O(BLua\TeX-ja$B$G$OL5;k$9$kJ8;z$K!"$=$l0J30$G$O(B
% $B%3%a%s%HJ8;z!J(B|%|$B$HF1$8!K$K$7$^$9!#(B
% \changes{2016/08/21}{v2.0c}{pdf\LaTeX{}$B$J$I$r%5%]!<%H(B}
%    \begin{macrocode}
\chardef\ascmac@q@catcode=\catcode`\Q\relax
\ifascmac@ptex
  \catcode`\Q=9\relax
\else
  \catcode`\Q=14\relax
\fi
%    \end{macrocode}
%
% pdf\LaTeX{}$B$d(BLua\LaTeX{}$B$N%W%j%_%F%#%V$r;H$C$F!"(Bascgrp$B$N(BType1$B%U%)%s%H$r(B
% $B;HMQ$G$-$k$h$&$K@_Dj$7$^$9!#(B
% \changes{2016/08/21}{v2.0c}{pdf\LaTeX{}$B$G(Bascgrp$B$N(BType1$B%U%)%s%H$r;HMQ(B}
%    \begin{macrocode}
%%
%% Use Type1 font for ascgrp (pdfLaTeX, LuaLaTeX)
\ifascmac@ptex\else
  \ifdefined\pdfextension
    % LuaTeX (>=0.85)
    \pdfextension mapline{+ascgrp <ascgrp.pfb}
    \pdfextension mapline{+ascii10 <ascii10.pfb}
    \pdfextension mapline{+ascii36 <ascii36.pfb}
  \else\ifdefined\pdfmapline
    % pdfTeX, LuaTeX (<=0.81)
    \pdfmapline{+ascgrp <ascgrp.pfb}
    \pdfmapline{+ascii10 <ascii10.pfb}
    \pdfmapline{+ascii36 <ascii36.pfb}
  \fi\fi
\fi
%    \end{macrocode}
%
% \begin{macro}{\@savetbaselineshift}
% \begin{macro}{\@saveybaselineshift}
% |\tbaselineshift| $B$H(B |\ybaselineshift| $B$r0l;~B`Hr$9$k$?$a$N=`Hw$G$9!#(B
% \changes{2016/08/21}{v2.0c}{$BDj5A:Q$_$N>l9g$O$"$($FDj5A$7$J$$$h$&$K$7$?(B}
%    \begin{macrocode}
%%
%% ascmac.sty 10/28 '88
%% ASCII special macros
Q \ifx\@savetbaselineshift\@undefined \newdimen\@savetbaselineshift \fi
Q \ifx\@saveybaselineshift\@undefined \newdimen\@saveybaselineshift \fi
%%
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\@@ASCII}
% \begin{macro}{\ascii}
% \begin{macro}{\Ascii}
% \begin{macro}{\ASCII}
% $B%"%9%-!<%3!<%]%l!<%7%g%s$N%m%4$G$9!#(B
%    \begin{macrocode}
%% ASCII logo
\def\@@ASCII#1#2#3{\shortstack{#1 ASCII \\[#3]
  \fontsize{#2}{\z@}\usefont{OT1}{cmss}{m}{n}ASCII CORPORATION}}
\def\ascii{\@ifundefined{@ascii}{\font\@ascii=ascii10 scaled \magstep4}{}%
  \@@ASCII\@ascii{5pt}{-6pt}}
\def\Ascii{\@ifundefined{@Ascii}{\font\@Ascii=ascii10 scaled \magstep5}{}%
  \@@ASCII\@Ascii{6pt}{-7pt}}
\def\ASCII{\@ifundefined{@ASCII}{\font\@ASCII=ascii36}{}%
  \@@ASCII\@ASCII{9pt}{-9pt}}
%%
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% |boxnote| $B4D6-$J$I$G;H$&L?Na$N=`Hw$G$9!#(B
%    \begin{macrocode}
%% boxnote environment
\font\@ascgrp=ascgrp
\newbox\scb@x \newbox\scscb@x
\newdimen\@bw\newbox\@nbox\newbox\@nbody
%    \end{macrocode}
%
% \begin{environment}{boxnote}
% |boxnote| $B4D6-$rDj5A$7$^$9!#(B
%    \begin{macrocode}
\def\boxnote{\par\vspace{.3\baselineskip}%
Q \@saveybaselineshift\ybaselineshift\ybaselineshift\z@
Q \@savetbaselineshift\tbaselineshift\tbaselineshift\z@
  \setbox\@nbox=\hbox{\@ascgrp\vrule width1.08pt depth35pt b\hss a\hss b}
  \@whiledim \wd\@nbox<\hsize \do{
  \setbox\@nbox=\hbox{\@ascgrp\unhbox\@nbox \hss a\hss b}}
  \setbox\@nbox=\hbox to\hsize{\@ascgrp\unhbox\@nbox \hss a\hss b%
  \vrule width1.08pt depth35pt}
  \@bw=\wd\@nbox\advance\@bw -40pt
  \begin{lrbox}{\@nbody}\begin{minipage}{\@bw}% (KN:1998/02/27)
Q   \ybaselineshift\@saveybaselineshift \tbaselineshift\@savetbaselineshift
}%
%    \end{macrocode}
%
%    \begin{macrocode}
\def\endboxnote{\end{minipage}\end{lrbox}%
  \vbox{\parindent=0pt\offinterlineskip\copy\@nbox
  \hbox to\wd\@nbox{\vrule width1.08pt\hfil\box\@nbody\hfil\vrule width1.08pt}
  \hbox to\wd\@nbox{\vrule width1.08pt height15pt\hfil
  \vrule width1.08pt height15pt}\hrule height1.08pt}}
%%
%    \end{macrocode}
% \end{environment}
%
% |screen| $B4D6-$J$I$G;H$&L?Na$N=`Hw$G$9!#(B
%    \begin{macrocode}
%% screen environment
\newdimen\@scw
\def\@hobox#1#2#3{\hbox to\@scw{\oval(#3,#3)[#1]\hfil\oval(#3,#3)[#2]%
  \dimen\z@=#3\unitlength\advance\dimen\z@\@wholewidth
  \vrule\@width\z@\@height\z@\@depth.5\dimen\z@}}
%    \end{macrocode}
%
%    \begin{macrocode}
\def\@vrf@#1#2{\vskip#1\leaders\vrule width#2\vfil\vskip#1}
%    \end{macrocode}
%
% \begin{environment}{screen}
% |screen| $B4D6-$rDj5A$7$^$9!#(B
%    \begin{macrocode}
\def\screen{%
Q \@saveybaselineshift\ybaselineshift \ybaselineshift\z@
Q \@savetbaselineshift\tbaselineshift \tbaselineshift\z@
  \@ifnextchar[{\@screen}{\@screen[0]}}
%    \end{macrocode}
%
%    \begin{macrocode}
\def\@screen[#1]{\ifcase#1\def\@r{20}\def\@s{9.8pt}\def\@sx{10pt}\or
  \def\@r{18}\def\@s{8.8pt}\def\@sx{9pt}\or
  \def\@r{16}\def\@s{7.8pt}\def\@sx{8pt}\or
  \def\@r{14}\def\@s{6.8pt}\def\@sx{7pt}\or
  \def\@r{12}\def\@s{5.8pt}\def\@sx{6pt}\or
  \def\@r{10}\def\@s{4.8pt}\def\@sx{5pt}\or
  \def\@r{8}\def\@s{3.8pt}\def\@sx{4pt}\or
  \def\@r{6}\def\@s{2.8pt}\def\@sx{3pt}\else
  \def\@r{4}\def\@s{1.8pt}\def\@sx{2pt}\fi
  \par\vspace{.3\baselineskip}\@scw\linewidth \advance\@scw -\@r pt
  \setbox\scb@x=\hbox to\@scw\bgroup\begin{minipage}{\@scw}% (KN:1998/02/27)
Q   \ybaselineshift\@saveybaselineshift \tbaselineshift\@savetbaselineshift
}%
%    \end{macrocode}
%
%    \begin{macrocode}
\def\endscreen{\end{minipage}\egroup%
  \setbox\scscb@x=\hbox to\linewidth{\hfil\vbox{\offinterlineskip%
  \thinlines\setlength{\unitlength}{1pt}\hrule\kern\@s%
  \@hobox{tl}{tr}{\@r}\kern-\@sx\box\scb@x\@hobox{bl}{br}{\@r}%
  \kern-.4pt\hrule}\hfil}\dimen0=\ht\scscb@x%
  \dimen2=\@sx\advance\dimen2 .2pt
  \noindent\hbox to\linewidth{\hbox to.2pt{\vbox to\dimen0{\@vrf@{\dimen2}{.4pt}}%
  \hss}\box\scscb@x\hbox to.2pt{\hss\vbox to\dimen0{\@vrf@{\dimen2}{.4pt}}}\hss}}%
%%
%    \end{macrocode}
% \end{environment}
%
% |itembox| $B4D6-$J$I$G;H$&L?Na$N=`Hw$G$9!#(B
%    \begin{macrocode}
%% itembox environment
%%   replace \box0 with \@iboxstr; thanks FTEXers (1998/11/27)
\newdimen\@itemh\newtoks\@iboxpos\newbox\@iboxstr
%    \end{macrocode}
%
%    \begin{macrocode}
\def\@hleader{\leaders\hrule height .8pt\hfil}
%    \end{macrocode}
%
% \begin{environment}{itembox}
% |itembox| $B4D6-$rDj5A$7$^$9!#(B
%    \begin{macrocode}
\def\itembox{\@ifnextchar[{\@itembox}{\@itembox[c]}}
\def\@itembox[#1]#2{%
Q \@saveybaselineshift\ybaselineshift\ybaselineshift\z@
Q \@savetbaselineshift\tbaselineshift\tbaselineshift\z@
  \par\vspace{.3\baselineskip}%
  \setbox\@iboxstr=\hbox{%
Q \ybaselineshift\@saveybaselineshift \tbaselineshift\@savetbaselineshift
  #2}%
  \@itemh\ht\@iboxstr\advance\@itemh\dp\@iboxstr
  \vspace{.5\@itemh}\bgroup\@scw\linewidth
  \advance\@scw-20pt\@iboxpos={#1}%
  \setbox\scb@x=\hbox to\@scw\bgroup\begin{minipage}{\@scw}%
Q \ybaselineshift\@saveybaselineshift
Q \tbaselineshift\@savetbaselineshift% (KN:1998/02/27)
  \vspace*{.5\@itemh}}%
%    \end{macrocode}
%
%    \begin{macrocode}
\def\enditembox{\end{minipage}\egroup%
  \setbox\scscb@x=\hbox to\linewidth{\hfil\vbox{\offinterlineskip%
  \thicklines\setlength{\unitlength}{1pt}%
  \hbox to\@scw{\if l\the\@iboxpos\else\@hleader\fi
    \space\vbox to.8pt{\vss\hbox{\box\@iboxstr}\vss}%
    \space\if r\the\@iboxpos\else \@hleader\fi}\kern9.6pt
  \@hobox{tl}{tr}{20}\kern-10pt\box\scb@x\@hobox{bl}{br}{20}%
  \kern-.8pt\hrule height.8pt}\hfil}\dimen0=\ht\scscb@x%
  \noindent\hbox to\linewidth{\hbox to.4pt{\vbox to\dimen0{\@vrf@{10.4pt}{.8pt}}%
  \hss}\box\scscb@x\hbox to.4pt{\hss\vbox to\dimen0{\@vrf@{10.4pt}{.8pt}}}%
  \hss}\egroup}
%%
%    \end{macrocode}
% \end{environment}
%
% \begin{macro}{\keytop}
% \begin{macro}{\@keytop}
% |\keytop| $BL?Na$G$9!#(B
%    \begin{macrocode}
%% \keytop
\def\keytop{\@ifnextchar[{\@keytop}{\@keytop[d]}}
\def\@keytop[#1]#2{%
  {\setbox0=\hbox{\shortstack{#2}}%
Q \ybaselineshift\z@ \tbaselineshift\z@
  \dimen0=\wd0\advance\dimen0 5pt\dimen1=\dp0\advance\dimen1 2.5pt%
  \setbox\scscb@x=\hbox to\dimen0{%
Q \iftdir\tate\else\yoko\fi
  \@scw\wd0\hfil\vtop{\offinterlineskip
  \thinlines\setlength{\unitlength}{1pt}\hrule\kern2.3pt\@hobox{tl}{tr}5%
  \kern-2.4pt\box0\@hobox{bl}{br}5\kern-.4pt\hrule}\hfil}%
  \dimen0=\dp\scscb@x\advance\dimen0 -.4pt
  \setbox0=\vbox{\hbox{\hbox to.2pt{\vtop to\dimen0{\@vrf@{2.3pt}{.4pt}}\hss}%
  \box\scscb@x\hbox to.2pt{\hss\vtop to\dimen0{\@vrf@{2.3pt}{.4pt}}}}}%
  \if #1c\mbox{}$\vcenter{\box0}$\mbox{}\else
  \if #1t\else\if #1b\boxmaxdepth=0pt\else
  \boxmaxdepth=\dimen1\fi\fi \mbox{}\vbox{\box0}\fi}}
%%
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
%
% \begin{macro}{\yen}
% \changes{1996/03/13}{v1.1}{Append \cs{leavevmode} in
%     \cs{yen}, \cs{return}, \cs{Return} command.}
% $B1_5-9f$G$9!#(B
%    \begin{macrocode}
%% \yen
\def\yen{\leavevmode\hbox{%
Q \iftdir\yoko\fi
  \setbox0=\hbox{Y}Y\kern-.97\wd0\vbox{\hrule height.1ex width.98\wd0
  \kern.33ex\hrule height.1ex width.98\wd0\kern.45ex}}}
%    \end{macrocode}
%%
% \end{macro}
%
% \begin{macro}{\return}
% \begin{macro}{\Return}
% $B2~9T5-9f$G$9!#(B
%    \begin{macrocode}
%% return-key
\def\return{\leavevmode\hbox{%
Q \iftdir\yoko\fi
  \@ascgrp\char"20}}
\def\Return{\leavevmode\hbox{%
Q \iftdir\yoko\fi
  \@ascgrp @}}
%%
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% |\mask| $BL?Na$N=`Hw$G$9!#(B
%    \begin{macrocode}
%% \mask
\newbox\@bwsp \newbox\@@bwsp\newcount\@bcal
%    \end{macrocode}
%
%    \begin{macrocode}
\def\setdim@#1#2{\@bcal=#2\divide#1\@bcal\multiply#1\@bcal\advance#1 1.001#2}
%    \end{macrocode}
%
% \begin{macro}{\mask}
% |\mask| $BL?Na$rDj5A$7$^$9!#(B
%    \begin{macrocode}
\def\mask#1#2{{\setbox\@bwsp=\hbox{#1}%
  \setbox0=\hbox{%
Q \ybaselineshift\z@\tbaselineshift\z@
  \@ascgrp#2}%
  \dimen0=\wd\@bwsp\dimen1=\ht\@bwsp\advance\dimen1\dp\@bwsp\dimen2=-\dimen1
  \setdim@{\dimen0}{\wd0}\setdim@{\dimen1}{\ht0}%
  \setbox\@@bwsp=\hbox to\dimen0{\leaders
  \vtop to\dimen1{\leaders\box0\vfil}\hfil}%
  \advance\dimen2\dp\@@bwsp\divide\dimen2 2
  \advance\dimen2\dp\@bwsp\boxmaxdepth=\dimen2
  \setbox\@@bwsp=\vbox{\box\@@bwsp}%
  \mbox{}\hbox to\wd\@@bwsp{\hbox to0pt{\box\@@bwsp\hss}\hss\unhbox\@bwsp\hss}}}
%%
%    \end{macrocode}
% \end{macro}
%
% |\maskbox| $BL?Na$N=`Hw$G$9!#(B
%    \begin{macrocode}
%% \Maskbox{width}{height}{mask_char}{pos}{rule_wid}{body}
%% \maskbox{width}{height}{mask_char}{pos}{body}
\def\@setdim#1#2{\@bcal=#2\divide#1\@bcal\multiply#1\@bcal\advance#1 .001#2}
%    \end{macrocode}
%
% \begin{macro}{\Maskbox}
% \begin{macro}{\maskbox}
% |\maskbox| $BL?Na$H(B |\Maskbox| $BL?Na$rDj5A$7$^$9!#(B
%    \begin{macrocode}
\def\Maskbox#1#2#3#4#5#6{{%
  \setbox0=\hbox{%
Q \ybaselineshift\z@\tbaselineshift\z@
  \@ascgrp#3}%
  \dimen0=#1\@setdim{\dimen0}{\wd0}\dimen1=#2\@setdim{\dimen1}{\ht0}%
  \ifx#4c\skip0=0pt plus1fil\skip1=\skip0\fi
  \ifx#4r\skip0=0pt plus1fil\skip1=0pt\fi
  \ifx#4l\skip1=0pt plus1fil\skip0=0pt\fi
  \leavevmode
  \hbox{\hbox to0pt{\hbox to\dimen0{\leaders\vbox to\dimen1{\leaders
  \box0\vfil}\hfil}\hss}%
  \vrule width#5\vbox to\dimen1{\hrule height#5\vfil
  \dimen3=#5\advance\dimen0-2\dimen3\advance\dimen0 .15pt
  \hbox to\dimen0{\hskip\skip0\relax#6\hskip\skip1}%
  \vfil\hrule height#5}\vrule width#5}}}
\def\maskbox#1#2#3#4#5{\Maskbox{#1}{#2}{#3}{#4}{0pt}{#5}}
%%
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% |shadebox| $B4D6-$G;H$&L?Na$N=`Hw$G$9!#(B
%    \begin{macrocode}
%% shadebox environment
\newdimen\shaderule\shaderule 5pt
%    \end{macrocode}
%
% \begin{environment}{shadebox}
% |shadebox| $B4D6-$rDj5A$7$^$9!#(B
%    \begin{macrocode}
\def\shadebox{\par\vspace{.3\baselineskip}%
Q \@saveybaselineshift\ybaselineshift\ybaselineshift\z@
Q \@savetbaselineshift\tbaselineshift\tbaselineshift\z@
  \dimen0\linewidth \advance\dimen0-20pt
  \advance\dimen0-2\fboxrule \advance\dimen0-\shaderule
  \setbox\@tempboxa=\hbox\bgroup\minipage{\dimen0}%
Q   \ybaselineshift\@saveybaselineshift \tbaselineshift\@savetbaselineshift
}
%    \end{macrocode}
%
%    \begin{macrocode}
\def\endshadebox{\endminipage\egroup\dimen0=10pt
  \setbox\@tempboxa=\hbox{\kern\dimen0\unhbox\@tempboxa\kern\dimen0}%
  \setbox0=\vbox{\hrule \@height \fboxrule
  \hbox{\vrule \@width \fboxrule
  \vbox{\vskip\fboxsep \box\@tempboxa\vskip\fboxsep}%
  \vrule \@width \fboxrule}\hrule \@height \fboxrule}%
  \dimen0=\ht0 \advance\dimen0-\shaderule
  \hbox{\hbox to \shaderule{\copy0\hss}\kern 0pt
  \vrule width\wd0 height0pt depth\shaderule\hskip-\shaderule
  \vrule width\shaderule height\dimen0}}
%%
%    \end{macrocode}
% \end{environment}
%
% $B%H%j%C%/$K;HMQ$7$?!V(BQ$B!W$H$$$&J8;z$N%+%F%4%j!<%3!<%I$r85$KLa$7$^$9!#(B
% \changes{2016/08/21}{v2.0c}{pdf\LaTeX{}$B$J$I$r%5%]!<%H(B}
%    \begin{macrocode}
\catcode`\Q=\ascmac@q@catcode\relax
%%
%</tascmac>
%    \end{macrocode}
%
% \Finale
%
\endinput
