plext.sty の垂直位置の検討

plext-ambeta.sty

%%
%% This is file `plext.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% plext.dtx  (with options: `package')
%% 
%% Copyright (c) 2010 ASCII MEDIA WORKS
%% Copyright (c) 2016 Japanese TeX Development Community
%% 
%% This file is part of the pLaTeX2e system (community edition).
%% -------------------------------------------------------------
%% 
%% File: plext.dtx
\NeedsTeXFormat{pLaTeX2e}
\ProvidesPackage{plext}
   [2017/05/02 v1.2f-a03 pLaTeX package file (community edition)]
\newif\if@rotsw
\def\array{\let\@acol\@arrayacol \let\@classz\@arrayclassz
  \let\@classiv\@arrayclassiv
  \let\\\@arraycr\let\@halignto\@empty\X@tabarray}
\def\tabular{\let\@halignto\@empty\X@tabular}
\@namedef{tabular*}{\@ifnextchar<%>
   {\@stabular}{\@stabular<Z>}}
\def\X@tabarray{\@ifnextchar<%>
   {\p@tabarray}{\p@tabarray<Z>}}
\def\X@tabular{\@ifnextchar<%>
   {\p@tabular}{\p@tabular<Z>}}
\def\@stabular<#1>#2{%
   \setlength\dimen@{#2}%
   \edef\@halignto{to\the\dimen@}\p@tabular<#1>}
\def\p@tabular<#1>{\leavevmode \null\hbox \bgroup $\let\@acol\@tabacol
   \let\@classz\@tabclassz
   \let\@classiv\@tabclassiv \let\\\@tabularcr\p@tabarray<#1>}
\def\p@tabarray<#1>{\m@th\@ifnextchar[%]
   {\p@array<#1>}{\p@array<#1>[c]}}
\def\p@array<#1>[#2]#3{\setbox\@arstrutbox\hbox{%
  \iftdir
    \if #1y\relax\yoko
       \vrule\@height\arraystretch\ht\strutbox
             \@depth\arraystretch\dp\strutbox \@width\z@
    \else\if #1z\relax\@rotswtrue
       \vrule\@height\arraystretch\ht\zstrutbox
             \@depth\arraystretch\dp\zstrutbox \@width\z@
    \else
       \vrule\@height\arraystretch\ht\tstrutbox
             \@depth\arraystretch\dp\tstrutbox \@width\z@
    \fi\fi
  \else
    \if #1t\relax\tate
       \vrule\@height\arraystretch\ht\tstrutbox
             \@depth\arraystretch\dp\tstrutbox \@width\z@
    \else
       \vrule\@height\arraystretch\ht\strutbox
             \@depth\arraystretch\dp\strutbox \@width\z@
    \fi
  \fi}%
  \fork@array@option<#1>[#2]%
  \@mkpream{#3}\edef\@preamble{\ialign \noexpand\@halignto
  \bgroup \tabskip\z@skip \@arstrut \@preamble \tabskip\z@skip \cr}%
  \let\@startpbox\@@startpbox \let\@endpbox\@@endpbox
  \let\tabularnewline\\%
  \@begin@alignbox\bgroup\box@dir\adjustbaseline
    \let\par\@empty
    \let\@sharp##\let\protect\relax
    \lineskip\z@skip\baselineskip\z@skip\@preamble}
\def\endarray{\crcr\egroup\egroup\@end@alignbox}
\def\endtabular{\crcr\egroup\egroup\@end@alignbox $\egroup\null}
\expandafter \let \csname endtabular*\endcsname = \endtabular
\def\fork@array@option<#1>[#2]{%
\@rotswfalse
\iftdir
\if #1y\relax\let\box@dir\yoko
  \if #2t\relax
     \def\@begin@alignbox{%
         \@tempdima=\tbaselineshift
         \advance\@tempdima-\ybaselineshift
         \raise\@tempdima\vtop\bgroup\kern\z@\vtop}%
     \let\@end@alignbox\egroup
  \else\if #2b\relax
     \def\@begin@alignbox{%
         \@tempdima=\tbaselineshift
         \advance\@tempdima-\ybaselineshift
         \raise\@tempdima\vbox\bgroup\vbox}%
     \def\@end@alignbox{\kern\z@\egroup}%
  \else
     \let\@begin@alignbox\vcenter
     \let\@end@alignbox\relax
  \fi\fi
\else\if #1z\relax\let\box@dir\relax\@rotswtrue
  \if #2t\relax
     \def\@begin@alignbox{%
         \@tempdima=\tbaselineshift
         \advance\@tempdima-\ybaselineshift
         \advance\@tempdima\ht\tstrutbox
         \raise\arraystretch\@tempdima\vtop\bgroup\kern\z@\vtop}%
     \let\@end@alignbox\egroup
  \else\if #2b\relax
     \def\@begin@alignbox{%
         \@tempdima=\tbaselineshift
         \advance\@tempdima-\ybaselineshift
         \advance\@tempdima-\dp\tstrutbox
         \raise\arraystretch\@tempdima\vbox\bgroup\vbox}%
     \def\@end@alignbox{\kern\z@\egroup}%
  \else
     \let\@begin@alignbox\vcenter
     \let\@end@alignbox\relax
  \fi\fi
\else\let\box@dir\tate
  \if #2t\relax
     \let\@begin@alignbox\vtop
     \let\@end@alignbox\relax
  \else\if #2b\relax
     \let\@begin@alignbox\vbox
     \let\@end@alignbox\relax
  \else
     \let\@begin@alignbox\vcenter
     \let\@end@alignbox\relax
  \fi\fi
\fi\fi
\else
\if #1t\relax\let\box@dir\tate
  \if #2t\relax
     \def\@begin@alignbox{\vtop\bgroup\kern\z@\vbox}%
     \let\@end@alignbox\egroup
  \else\if #2b\relax
     \def\@begin@alignbox{\vbox\bgroup\vbox}%
     \def\@end@alignbox{\kern\z@\egroup}%
  \else
     \let\@begin@alignbox\vcenter
     \let\@end@alignbox\relax
  \fi\fi
\else\let\box@dir\yoko
  \if #2t\relax
     \let\@begin@alignbox\vtop
     \let\@end@alignbox\relax
  \else\if #2b\relax
     \let\@begin@alignbox\vbox
     \let\@end@alignbox\relax
  \else
     \let\@begin@alignbox\vcenter
     \let\@end@alignbox\relax
  \fi\fi
\fi\fi}
\newbox\@floatbox
\newdimen\floatwidth
\newdimen\floatheight
\newdimen\floatruletick \floatruletick=0.4pt
\newdimen\captionfloatsep \captionfloatsep=10pt
\def\caption@dir{Z}
\let\captiondir\relax
\newdimen\captionwidth \captionwidth\z@
\def\caption@posa{Z}
\def\caption@posb{Z}
\newbox\@captionbox
\def\captionfontsetup{\normalfont\normalsize}
\def\layoutfloat{\@ifnextchar(%)
   {\X@layoutfloat}{\X@layoutfloat(-5\p@,-5\p@)}}
\def\X@layoutfloat(#1,#2){\@ifnextchar[%]
   {\@layoutfloat(#1,#2)}{\@layoutfloat(#1,#2)[c]}}
\long\def\@layoutfloat(#1,#2)[#3]#4{%
  \setbox\z@\hbox{#4}%
  \floatwidth=#1 \floatheight=#2 \edef\float@pos{#3}%
  \ifdim\floatwidth<\z@
     \floatwidth\wd\z@\floatruletick\z@
  \fi
  \ifdim\floatheight<\z@
     \floatheight\ht\z@\advance\floatheight\dp\z@\relax
     \floatruletick\z@
  \fi
  \setbox\@floatbox\vbox to\floatheight{\offinterlineskip
    \hrule width\floatwidth height\floatruletick depth\z@
    \vss\hbox to\floatwidth{%
      \vrule width\floatruletick height\floatheight depth\z@
      \hss\vbox to\floatheight{\hsize\floatwidth\vss#4\vss}\hss
      \vrule width\floatruletick height\floatheight depth\z@
    }\hrule width\floatwidth height\floatruletick depth\z@}}
\def\DeclareLayoutCaption#1<#2>(#3)[#4#5]{%
  \expandafter
  \ifx\csname #1@layoutcaption\endcsname\relax \else
    \@latex@info{Redeclaring capiton layout setting of '#1'}%
  \fi
  \expandafter
  \gdef\csname #1@layoutcaption\endcsname{%
     \if Z\caption@dir\def\caption@dir{#2}\fi
     \ifdim\captionwidth=\z@ \captionwidth=#3\relax\fi
     \if Z\caption@posa\def\caption@posa{#4}\fi
     \if Z\caption@posb\def\caption@posb{#5}\fi}}
\@onlypreamble\DeclareLayoutCaption
\DeclareLayoutCaption{figure}<y>(.8\linewidth)[cd]
\DeclareLayoutCaption{table}<y>(.8\linewidth)[cu]
\def\layoutcaption{\def\caption@dir{Z}\captionwidth\z@
  \def\caption@posa{Z}\def\caption@posb{Z}%
  \@ifnextchar<\X@layoutcaption{%
    \@ifnextchar(\@ilayoutcaption{%
      \@ifnextchar[\@iilayoutcaption\relax}}}
\def\X@layoutcaption<#1>{\def\caption@dir{#1}%
  \@ifnextchar(\@ilayoutcaption{%
    \@ifnextchar[\@iilayoutcaption\relax}}
\def\@ilayoutcaption(#1){\setlength\captionwidth{#1}%
  \@ifnextchar[{\@iilayoutcaption}{\relax}}
\def\@iilayoutcaption[#1#2]{%
  \def\caption@posa{#1}\def\caption@posb{#2}}
\def\pcaption{\refstepcounter\@captype \@dblarg{\@pcaption\@captype}}
\long\def\@pcaption#1[#2]#3{%
  \addcontentsline{\csname ext@#1\endcsname}{#1}{%
    \protect\numberline{\csname the#1\endcsname}{\ignorespaces#2}}%
  \ifvoid\@floatbox
     \latex@error{Use with `\protect\layoutfloat'.}\@eha
  \fi
  \make@pcaptionbox{#3}%
  \@pboxswfalse
  \setbox\@tempboxa\vbox{\hbox to\hsize{\if l\float@pos\else\hss\fi
    \if l\caption@posb\box\@captionbox\kern\captionfloatsep\fi
    \if t\caption@posa\vtop
    \else\if b\caption@posa\vbox
    \else\ifmmode\vcenter \else\@pboxswtrue $\vcenter \fi\fi\fi
    {\if u\caption@posb\box\@captionbox\kern\captionfloatsep\fi
     \unvbox\@floatbox
     \if d\caption@posb\kern\captionfloatsep\box\@captionbox\fi}%
    \if r\caption@posb\kern\captionfloatsep\box\@captionbox\fi
    \if@pboxsw \m@th$\fi \if r\float@pos\else\hss\fi}}%
  \par\vskip.25\baselineskip
  \box\@tempboxa}
\def\make@pcaptionbox#1{%
  \expandafter
  \ifx\csname\@captype @layoutcaption\endcsname\relax
     \@latex@warning{Default caption layout of `\@captype' unknown.}%
       \def\caption@dir{Z}\captionwidth\z@
       \def\caption@posa{Z}\def\caption@posb{Z}%
  \else
     \csname \@captype @layoutcaption\endcsname
  \fi
  \@rotswfalse \@tempswafalse
  \iftdir\if y\caption@dir \let\captiondir\yoko \@tempswatrue
    \else\if z\caption@dir \let\captiondir\relax \@rotswtrue
    \else\let\captiondir\tate\fi\fi
  \else\if t\caption@dir\let\captiondir\tate \@tempswatrue
    \else\let\captiondir\yoko\fi
  \fi
  \setbox0\hbox{\if@rotsw $\fi\hbox{\captiondir
     \captionfontsetup\parindent\z@\inhibitglue
     \csname fnum@\@captype\endcsname\char\euc"A1A1\relax#1}%
  \if@rotsw \m@th$\fi}%
  \if@tempswa \@tempdima\ht0 \else\@tempdima\wd0 \fi
  \ifdim\@tempdima>\captionwidth \@tempdima\captionwidth \fi
  \@pboxswfalse
  \setbox0\hbox{\if@rotsw\ifmmode\@rotswfalse \else $\fi\fi
    \if u\caption@posb\vbox
    \else\if d\caption@posb\vbox
    \else\if t\caption@posa\vtop
    \else\if b\caption@posa\vbox
    \else\ifmmode\vcenter\else\@pboxswtrue $\vcenter\fi
    \fi\fi\fi\fi
    {\hsize\@tempdima\kern\z@
    \vbox{\captiondir\hsize\@tempdima
      \captionfontsetup\parindent\z@\inhibitglue
      \csname fnum@\@captype\endcsname\char\euc"A1A1\relax#1}\kern\z@
    }\if@pboxsw \m@th$\fi \if@rotsw \m@th$\fi}%
  \let\to@captionboxwidth\relax
  \if l\caption@posb \else\if r\caption@posb\else
  \def\to@captionboxwidth{to\floatwidth}\fi\fi
  \setbox\@captionbox\hbox\to@captionboxwidth{%
     \if t\caption@posa\else\hss\fi
     \unhbox0\relax
     \if b\caption@posa\else\hss\fi}}
\def\minipage{\@ifnextchar<%>
   {\X@minipage}{\X@minipage<Z>}}
\def\X@minipage<#1>{\@ifnextchar[%]
   {\@iminipage<#1>}{\@iiiminipage<#1>{c}\relax[s]}}
\def\@iminipage<#1>[#2]{\@ifnextchar[%]
   {\@iiminipage<#1>{#2}}{\@iiiminipage<#1>{#2}\relax[s]}}
\def\@iiminipage<#1>#2[#3]{\@ifnextchar[%]
   {\@iiiminipage<#1>{#2}{#3}}{\@iiiminipage<#1>{#2}{#3}[#2]}}
\def\@iiiminipage<#1>#2#3[#4]#5{%
  \leavevmode\bgroup
  \setlength\@tempdima{#5}%
  \def\@mpargs{<#1>{#2}{#3}[#4]{#5}}%
  \@rotswfalse
  \iftdir
    \if #1y\relax\let\box@dir\yoko
    \else\if #1z\relax\@rotswtrue \let\box@dir\relax
    \else\let\box@dir\tate
    \fi\fi
  \else
    \if #1t\relax\let\box@dir\tate
    \else\let\box@dir\yoko
    \fi
  \fi
  \setbox\@tempboxa\vbox\bgroup\box@dir
    \if@rotsw \hsize\@tempdima\hbox\bgroup$\vbox\bgroup\fi
    \adjustbaseline
    \color@begingroup
      \hsize\@tempdima
      \textwidth\hsize \columnwidth\hsize
      \@parboxrestore
      \def\@mpfn{mpfootnote}\def\thempfn{\thempfootnote}%
      \c@mpfootnote\z@
      \let\@footnotetext\@mpfootnotetext
      \let\@listdepth\@mplistdepth \@mplistdepth\z@
      \@minipagerestore
      \@setminipage}
\def\endminipage{%
    \par
    \unskip
    \ifvoid\@mpfootins\else
      \vskip\skip\@mpfootins
      \normalcolor
      \footnoterule
      \unvbox\@mpfootins
    \fi
    \@minipagefalse   %% added 24 May 89
  \color@endgroup
  \if@rotsw \egroup\m@th$\egroup\fi
  \egroup
  \expandafter\@iiiparbox\@mpargs{\unvbox\@tempboxa}\egroup}
\DeclareRobustCommand\parbox{\@ifnextchar<%>
   {\X@parbox}{\X@parbox<Z>}}
\def\X@parbox<#1>{\@ifnextchar[%]
   {\@iparbox<#1>}{\@iiiparbox<#1>{c}\relax[s]}}
\def\@iparbox<#1>[#2]{\@ifnextchar[%]
   {\@iiparbox<#1>{#2}}{\@iiiparbox<#1>{#2}\relax[s]}}
\def\@iiparbox<#1>#2[#3]{\@ifnextchar[%]%
   {\@iiiparbox<#1>{#2}{#3}}{\@iiiparbox<#1>{#2}{#3}[#2]}}
\long\def\@iiiparbox<#1>#2#3[#4]#5#6{%
  \leavevmode\null\bgroup
  \setlength\@tempdima{#5}%
  \fork@parbox@option<#1>[#2]%
\if@rotsw
  \@begin@tempboxa\vbox{\box@dir\hsize\@tempdima
    \hbox{$\vbox{\@parboxrestore\adjustbaseline#6\@@par}\m@th$}}%
\else
  \@begin@tempboxa\vbox{\box@dir
    \hsize\@tempdima\@parboxrestore\adjustbaseline#6\@@par}%
\fi
    \ifx\relax#3\relax\else
      \setlength\@tempdimb{#3}%
      \edef\@parboxto{to\the\@tempdimb}%
    \fi
    \@begin@parbox\@parboxto{\box@dir\adjustbaseline
       \let\hss\vss\let\unhbox\unvbox
       \csname bm@#4\endcsname}\@end@parbox
  \@end@tempboxa\egroup\null}
\def\fork@parbox@option<#1>[#2]{%
\@rotswfalse
\iftdir
\if #1y\relax\let\box@dir\yoko
   \if #2t\relax
      \def\@begin@parbox{\raise\cht\vtop\bgroup\kern\z@\vtop}%
      \let\@end@parbox\egroup
   \else\if #2b\relax
      \def\@begin@parbox{\lower\cdp\vbox\bgroup\vbox}%
      \def\@end@parbox{\kern\z@\egroup}%
   \else\ifmmode
      \let\@begin@parbox\vcenter
      \let\@end@parbox\relax
   \else
      \def\@begin@parbox{$\vcenter}%
      \def\@end@parbox{\m@th$}%
   \fi\fi\fi
\else\if #1z\relax\@rotswtrue \let\box@dir\relax
   \if #2t\relax
      \def\@begin@parbox{\raise\cht\vtop\bgroup\kern\z@\vtop}%
      \let\@end@parbox\egroup
   \else\if #2b\relax
      \def\@begin@parbox{\lower\cdp\vbox\bgroup\vbox}%
      \def\@end@parbox{\kern\z@\egroup}%
   \else\ifmmode
      \let\@begin@parbox\vcenter
      \let\@end@parbox\relax
   \else
      \def\@begin@parbox{$\vcenter}%
      \def\@end@parbox{\m@th$}%
   \fi\fi\fi
\else\let\box@dir\tate
   \if #2t\relax
      \let\@begin@parbox\vtop
      \let\@end@parbox\relax
   \else\if #2b\relax
      \let\@begin@parbox\vbox
      \let\@end@parbox\relax
   \else\ifmmode
      \let\@begin@parbox\vcenter
      \let\@end@parbox\relax
   \else
      \def\@begin@parbox{$\vcenter}%
      \def\@end@parbox{\m@th$}%
   \fi\fi\fi
\fi\fi
\else
\if #1t\relax\let\box@dir\tate
   \if #2t\relax
      \def\@begin@parbox{\raise\cht\vtop\bgroup\kern\z@\vtop}%
      \let\@end@parbox\egroup
   \else\if #2b\relax
      \def\@begin@parbox{\lower\cdp\vbox\bgroup\vbox}%
      \def\@end@parbox{\kern\z@\egroup}%
   \else\ifmmode
      \let\@begin@parbox\vcenter
      \let\@end@parbox\relax
   \else
      \def\@begin@parbox{$\vcenter}%
      \def\@end@parbox{\m@th$}%
   \fi\fi\fi
\else\let\box@dir\yoko
   \if #2t\relax
      \let\@begin@parbox\vtop
      \let\@end@parbox\relax
   \else\if #2b\relax
      \let\@begin@parbox\vbox
      \let\@end@parbox\relax
   \else\ifmmode
      \let\@begin@parbox\vcenter
      \let\@end@parbox\relax
   \else
      \def\@begin@parbox{$\vcenter}%
      \def\@end@parbox{\m@th$}%
   \fi\fi\fi
\fi\fi}
\def\pbox{\leavevmode\@ifnextchar<{\X@makePbox}{\X@makePbox<Z>}}
\def\X@makePbox<#1>{%
  \@ifnextchar[{\@imakePbox<#1>}{\@imakePbox<#1>[-5\p@]}}
\def\@imakePbox<#1>[#2]{\@ifnextchar[%]
  {\@iimakePbox<#1>{#2}}{\@iimakePbox<#1>{#2}[c]}}
\def\@iimakePbox<#1>#2[#3]#4{%
  \bgroup \@rotswfalse \@pboxswfalse
  \iftdir
    \if #1y\relax\let\box@dir\yoko
    \else\if #1z\relax\@rotswtrue \let\box@dir\relax
    \else\let\box@dir\tate
    \fi\fi
  \else
    \if #1t\relax\let\box@dir\tate
    \else\let\box@dir\yoko
    \fi
  \fi
  \ifmmode\else\if@rotsw\@pboxswtrue\hbox\bgroup$\fi\fi
    \ifdim #2 <\z@ \hbox{\box@dir#4}\else
    \hbox to#2{\box@dir
               \if #3l\relax\else\hss\fi
               #4\relax
               \if #3r\relax\else\hss\fi}\fi
  \if@pboxsw \m@th$\egroup\fi\egroup}
\def\picture{\@ifnextchar<%>
   {\X@picture}{\X@picture<Z>}}
\def\X@picture<#1>(#2,#3){\@ifnextchar(%)
   {\@@picture<#1>(#2,#3)}{\@@picture<#1>(#2,#3)(0,0)}}
\newdimen\save@ybaselineshift
\newdimen\save@tbaselineshift
\newdimen\@picwd
\def\@@picture<#1>(#2,#3)(#4,#5){%
  \save@ybaselineshift\ybaselineshift
  \save@tbaselineshift\tbaselineshift
  \iftdir
    \if#1y\let\box@dir\yoko
      \@picwd=#3\unitlength \@picht=#2\unitlength
      \@tempdima=#5\unitlength \@tempdimb=#4\unitlength
    \else\let\box@dir\tate
      \@picwd=#2\unitlength \@picht=#3\unitlength
      \@tempdima=#4\unitlength \@tempdimb=#5\unitlength
    \fi
  \else
    \if#1t\let\box@dir\tate
      \@picwd=#3\unitlength \@picht=#2\unitlength
      \@tempdima=#5\unitlength \@tempdimb=#4\unitlength
    \else\let\box@dir\yoko
      \@picwd=#2\unitlength \@picht=#3\unitlength
      \@tempdima=#4\unitlength \@tempdimb=#5\unitlength
    \fi
  \fi
  \setbox\@picbox\hbox to\@picwd\bgroup\box@dir
  \hskip-\@tempdima\lower\@tempdimb\hbox\bgroup
  \ybaselineshift\z@ \tbaselineshift\z@
  \ignorespaces}
\def\endpicture{%
  \egroup\hss\egroup
  \ht\@picbox\@picht \wd\@picbox\@picwd \dp\@picbox\z@
  \mbox{\box\@picbox}%
  \ybaselineshift\save@ybaselineshift
  \tbaselineshift\save@tbaselineshift}
\let\org@put\put
\def\put{\ybaselineshift\z@\tbaselineshift\z@\org@put}
\let\org@line\line
\def\line{\ybaselineshift\z@\tbaselineshift\z@\org@line}
\let\org@vector\vector
\def\vector{\ybaselineshift\z@\tbaselineshift\z@\org@vector}
\let\org@dashbox\dashbox
\def\dashbox{\ybaselineshift\z@\tbaselineshift\z@\org@dashbox}
\let\org@oval\oval
\def\oval{\ybaselineshift\z@\tbaselineshift\z@\org@oval}
\let\org@circle\circle
\def\circle{\ybaselineshift\z@\tbaselineshift\z@\org@circle}
\newif\ifnot@advanceline
\newskip\rensujiskip
\rensujiskip=0.25\chs plus.25zw minus.25zw
\DeclareRobustCommand\rensuji{%
  \@ifstar{\not@advancelinetrue\@rensuji}{\@rensuji}}
\def\@rensuji{\@ifnextchar[{\@@rensuji}{\@@rensuji[c]}}
\def\@@rensuji[#1]#2{%
  \ifvmode\leavevmode\fi
  \ifydir\hbox{#2}\else
  \hskip\rensujiskip
  \ifnot@advanceline\not@advancelinefalse\else
    \setbox\z@\hbox{\yoko#2}%
    \@tempdima\ht\z@ \advance\@tempdima\dp\z@
    \if #1c\relax\vrule\@width\z@ \@height.5\@tempdima \@depth.5\@tempdima
    \else\if #1r\relax\vrule\@width\z@\@height\z@ \@depth\@tempdima
    \else\vrule\@width\z@ \@height\@tempdima \@depth\z@
    \fi\fi
  \fi
  \if #1c\relax\hbox to1zw{\yoko\hss#2\hss}%
  \else\if #1r\relax\vbox{\hbox to1zw{\yoko\hss#2}}%
  \else\vtop{\hbox to1zw{\yoko#2\hss}}%
  \fi\fi
  \hskip\rensujiskip
\fi}
\let\Rensuji\rensuji
\let\prensuji\rensuji
\def\Kanji#1{\expandafter\@Kanji\csname c@#1\endcsname}
\def\@Kanji#1{\kansuji #1}
\def\kanji{\iftdir\expandafter\kansuji\fi}
\def\boutenchar{\char\euc"A1A2}
\def\bou#1{\ifvmode\leavevmode\fi\@bou#1\end}
\def\@bou#1{%
  \ifx#1\end \let\next=\relax
  \else
    \iftdir\if@rotsw
      \hbox to\z@{\vbox to\z@{\boxmaxdepth\maxdimen
        \vss\moveleft-0.2zw\hbox{\boutenchar}\nointerlineskip
        \hbox{\char\euc"A1A1}}\hss}\nobreak#1\relax
    \else
      \hbox to\z@{\vbox to\z@{\boxmaxdepth\maxdimen
        \vss\moveleft0.2zw\hbox{\yoko\boutenchar}\nointerlineskip
        \hbox{\char\euc"A1A1}}\hss}\nobreak#1\relax
    \fi\else
      \hbox to\z@{\vbox to\z@{%
        \vss\moveleft-0.2zw\hbox{\yoko\boutenchar}\nointerlineskip
        \hbox{\char\euc"A1A1}}\hss}\nobreak#1\relax
    \fi
    \let\next=\@bou
  \fi\next}
\def\kasen#1{%
  \ifydir\underline{#1}%
  \else\if@rotsw\underline{#1}\else
    \setbox\z@\hbox{#1}\leavevmode\raise.7zw
    \hbox to\z@{\vrule\@width\wd\z@ \@depth\z@ \@height.4\p@\hss}%
    \box\z@
  \fi\fi}
\def\@eqnnum{{\reset@font\rmfamily \normalcolor
  \iftdir\raise.25zh\hbox{\yoko(\theequation)}%
  \else (\theequation)\fi}}
\def\@thecounter#1{\noexpand\rensuji{\noexpand\arabic{#1}}}
\def\@thmcounter#1{\noexpand\rensuji{\noexpand\arabic{#1}}}
\endinput
%%
%% End of file `plext.sty'.