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\begin{document}
\title{\emph{\epTeX ă«ă¤ă„ă¦}}
\author{ĺŚ—ĺ·ť ĺĽĺ…¸\null
\thanks{\url{https://github.com/h-kitagawa/eptex-wiki/blob/main/README.md},\ 
e-mail: \texttt{h\_kitagawa2001(at)yahoo.co.jp}}}
\date{version \the\epTeXversionďĽŚ\today}
\maketitle
\tableofcontents

\newpage
\section{ăŻăă‚ă«}
\epTeX ăŻďĽŚćť±äş¬ĺ¤§ĺ­¦ç†ĺ­¦é¨ć•°ĺ­¦ç§‘3ĺą´ç”źĺŻľč±ˇă®2007ĺą´ĺş¦ă®ćŽćĄ­ă€Śč¨ç®—ć•°ĺ­¦IIă€Ť
\footnote{\url{http://ks.ms.u-tokyo.ac.jp/}ďĽŽ}ă«ăŠă„ă¦ĺŚ—ĺ·ťăŚä˝śćă—ăźă—ă­ă‚°
ă©ă&nbsp;ă§ă‚ă‚‹ďĽŽă‚‚ă¨ă‚‚ă¨ăŻ\pTeX~3.1.10ă‚’ĺźşç›¤ă¨ă—ă¦ďĽŚ\eTeX~2.2ç›¸ĺ˝“ă®ć©źč˝ă‚„
10é€˛21ćˇă®ćµ®ĺ‹•ĺ°Źć•°ç‚ąćĽ”ç®—ă‚’čż˝ĺŠ&nbsp;ă—ăźă‚‚ă®ă§ă‚ăŁăźăŚďĽŚä»Šă§ăŻć¬ˇă®ç‚ąăŚĺ¤‰ă‚ŹăŁă¦ă„ă‚‹ďĽŽ
\begin{itemize}
  \item \TeX~Live~2011ă«ĺŹ–ă‚ŠčľĽăľă‚Śă‚‹ă«ă‚ăźă‚ŠďĽŚ
  \eTeX ă‚’ă™ăĽă‚ąă«ă—ă¦ďĽŚăťă®ä¸Šă«\pTeX ć‹ˇĺĽµă‚„ăťă®ä»–čż˝ĺŠ&nbsp;ć©źč˝ă‚’čĽ‰ă›ă‚‹ć–ąé‡ťă¸ă¨
  ĺ¤‰ć›´ă•ă‚ŚăźďĽŽ
  \item ćµ®ĺ‹•ĺ°Źć•°ç‚ąćĽ”ç®—ă®ć©źč˝ăŻ\epTeX~090927ă‹ă‚‰ĺ‰Šé™¤ă•ă‚Śă¦ă„ă‚‹
  \footnote{%
  \TeX ă‚˝ăĽă‚ąä¸­ă§ćµ®ĺ‹•ĺ°Źć•°ç‚ąćĽ”ç®—ă‚’čˇŚă†ć‰‹ć®µă¨ă—ă¦ăŻďĽŚäľ‹ăă°\LaTeX3ă®
  ć©źč˝(\Pkg{l3fp})ă‚„ďĽŚ\Pkg{xint}ă‘ăă‚±ăĽă‚¸ăăłă‰ă«ăŚă‚ă‚‹ă®ă§ďĽŚ
  ăťăˇă‚‰ă‚’ĺ©ç”¨ă—ă¦ć¬˛ă—ă„ďĽŽ}ďĽŽ
\end{itemize}

čŁ˝ä˝śă®ĺ‹•ć©źă‚„ä˝śćĄ­éŽç¨‹ăŞă©ă«ă¤ă„ă¦ăŻďĽŚč©łă—ăŹăŻ\cite{h7k}ă‚’ĺŹ‚ç…§ă—ă¦ć¬˛ă—ă„ă‘
ă‚Śă©ă‚‚ďĽŚĺ¤§é›‘ćŠŠă«č¨€ă†ă¨ďĽŚĺ‹•ć©źăŻä»Ąä¸‹ă®ă‚ă†ă«č¦ç´„ă§ăŤă‚‹ďĽŽ
\begin{itemize}
\item \pTeX ăŻďĽŚ\TeX ăŚćŚăŁă¦ă„ă‚‹ă€Śă¬ă‚¸ă‚ąă‚ż1ç¨®éˇžă«ă¤ăŤ256ĺ€‹ăľă§ă€Ťă¨ă„ă†
      ĺ¶é™ă‚’ă˛ăŤăšăŁă¦ăŠă‚ŠďĽŚçŹľçŠ¶ă§ă‚‚éťžĺ¸¸ă«ĺ¤šć•°ă®ă‘ăă‚±ăĽă‚¸ă‚’čŞ­ăżčľĽăľă›ăź
      ă‚Šă™ă‚‹ă¨ĺ¶é™ă«ă¶ăˇĺ˝“ăźăŁă¦ă—ăľă†ďĽŽ
\item ä¸€ć–ąďĽŚ\eTeX ć‹ˇĺĽµă§ăŻă“ă‚ŚăŚă€Śă¬ă‚¸ă‚ąă‚ż1ç¨®éˇžă«ă¤ăŤ32768ĺ€‹ăľă§ă€Ťă¨ç·©ĺ’Ś
      ă•ă‚Śă¦ăŠă‚ŠďĽŚć¬§ć–‡ă§ć¨™ćş–ă¨ăŞăŁă¦ă„ă‚‹\hologo{pdfTeX}ă‚„ăťă®ĺľŚç¶™ă®\hologo{LuaTeX}ďĽŚ
      ĺŹŠăł\hologo{XeTeX}ă§ă‚‚
      \eTeX ă®ć©źč˝ăŚĺŹ–ă‚ŠčľĽăľă‚Śă¦ă„ă‚‹ďĽŽ
\item ăťă†ă™ă‚‹ă¨ďĽŚ\pTeX ă&nbsp;ă‘ăŚĺ¶é™ă‚’ă¬ă‚¸ă‚ąă‚żĺ¶é™ă‚’ĺĽ•ăŤăšăŁă¦ă„ă‚‹ă®ăŻä¸–ç•Ś
      ă‹ă‚‰ĺŹ–ă‚Šć®‹ă•ă‚Śă‚‹ă“ă¨ă«ăŞă‚‹ă®ă§ăŻăŞă„ă‹ďĽŽ
\end{itemize}

\section{\eTeX ć‹ˇĺĽµă«ă¤ă„ă¦}
ĺ‰Ťă«čż°ăąăźă‚ă†ă«ďĽŚ\eTeX ăŻ\TeX ă®ć‹ˇĺĽµă®ä¸€ă¤ă§ă‚ă‚‹ďĽŽ\eTeX ă®ăžă‹ăĄă‚˘ă«
\cite{etexman}ă«ăŻďĽŚé–‹ç™şç›®çš„ăŚä»Ąä¸‹ă®ă‚ă†ă«čż°ăąă‚‰ă‚Śă¦ă„ă‚‹ďĽŽ

\begin{quotation}
The \NTS\ project intends to develop an `New Typesetting System' (\NTS)
that will eventually replace today's \TeX3.  The \NTS\ program will
include many features missing in \TeX, but there will also exist a mode
of operation that is 100\% compatible with \TeX3.  It will, necessarily,
require quite some time to develop \NTS\ to maturity and make it widely
available.

Meanwhile \eTeX\ intends to fill the gap between \TeX3 and the future
\NTS. It consists of a series of features extending the capabilities of
\TeX3.
\end{quotation}

\NTS ăŚă©ă†ăŞăŁăźă®ă‹ĺ•ăŻçźĄă‚‰ăŞă„ďĽŽă—ă‹ă—ďĽŚĺ°‘ăŞăŹă¨ă‚‚\eTeX ć‹ˇĺĽµč‡Şä˝“ăŻĺ®źç”¨
çš„ăŞç‰©ă§ă‚ă‚ŠďĽŚăťă®ă›ă„ă‹$\aleph$~(Aleph), \hologo{pdfTeX}, \hologo{XeTeX}ăŞă©ă®ä»–ă®ć‹ˇĺĽµ
ă«ă‚‚ăžăĽă‚¸ă•ă‚Śă¦ăŠă‚ŠďĽŚă»ă¨ă‚“ă©ă®äşşăŚ\eTeX ć‹ˇĺĽµă‚’ä˝żă†ă“ă¨ăŚă§ăŤă‚‹ă‚ă†ă«ăŞăŁ
ă¦ă„ă‚‹\footnote{\LaTeXe~2017-01-01ă‹ă‚‰ăŻďĽŚ\LaTeXe ă®ă•ă‚©ăĽăžăăä˝śćć®µéšŽă‹ă‚‰
\eTeX ć‹ˇĺĽµăŚĺż…é&nbsp;ă¨ăŞăŁăź(\cite{l2e26})ďĽŽ}ďĽŽ

\eTeX ć‹ˇĺĽµă§čż˝ĺŠ&nbsp;ă•ă‚Śă‚‹ć©źč˝ă«ă¤ă„ă¦ďĽŚč©łă—ăŹăŻ\cite{etexman}ă‚’ĺŹ‚ç…§ă—ă¦ć¬˛ă—
ă„ăŚďĽŚ\cite{h7k}ä¸­ă®4.2çŻ€ă€Ś\eTeX ă®ć©źč˝ă€Ťă‹ă‚‰ä¸€é¨ć”ąĺ¤‰ă—ă¦ĺĽ•ç”¨ă™ă‚‹ďĽŽ

\begin{quotation}
\eTeX ă«ăŻCompatibility modeă¨Extended modeă®2ă¤ăŚĺ­ĺś¨ă—ďĽŚĺ‰Ťč€…ă§ăŻ\eTeX
ç‰ąćś‰ă®ć‹ˇĺĽµăŻç„ˇĺŠąă«ăŞă‚‹ă®ă§ă¤ăľă‚‰ăŞă„ďĽŽĺľŚč€…ăŚăŠă‚‚ă—ă‚Ťă„ďĽŽ

ć‹ˇĺĽµć©źč˝ă‚’ä˝żă†ă«ăŻă•ă‚ˇă‚¤ă«ĺŤă‚’ć¸ˇă™ă¨ăŤă«\texttt{*}ă‚’ă¤ă‘ă‚‹ă‹
ă‚łăžăłă‰ă©ă‚¤ăłă‚Şă—ă‚·ă§ăłă¨ă—ă¦\texttt{-etex}ă‚ąă‚¤ăăă‚’ă¤ă‘ă‚Śă°ă„ă„
ăŚďĽŚ\eTeX ć‹ˇĺĽµă«é–˘ă‚Źă‚‹čż˝ĺŠ&nbsp;ăžă‚Żă­ăŻĺ˝“ç„¶ăŞăŚă‚‰ăťă‚Śă&nbsp;ă‘ă§
ăŻé§„ç›®ă§ă‚ă‚‹ďĽŽă€Śplainăžă‚Żă­ for \eTeXă€ŤďĽ\texttt{etex.fmt}ă¨ă„ă†ă®ăŚä¸€ç•Şăžă‚·
ă‹ăŞďĽ‰ă§ăŻč‡Şĺ‹•çš„ă«čż˝ĺŠ&nbsp;ăžă‚Żă­ă§ă‚ă‚‹\texttt{etex.src}ăŚĺ‘Ľă°ă‚Śă‚‹ďĽŽ\LaTeX ä¸‹ă§ăŻ
ăˇă‚‡ă†ă©\texttt{etex.src}ă«ĺŻľĺżśă—ăź\Pkg{etex}ă‘ăă‚±ăĽă‚¸ă‚’čŞ­ăżčľĽă‚€ĺż…č¦ăŚă‚ă‚‹ďĽŽ

\paragraph{ă¬ă‚¸ă‚ąă‚żă®ĺ˘—ĺŠ&nbsp;}
ćś€ĺťă«čż°ăąăźă‚ă†ă«ďĽŚ\TeX ă§ăŻ6ç¨®éˇžă®ă¬ă‚¸ă‚ąă‚żăŚĺ„256ĺ€‹ăšă¤ĺ©ç”¨ă§ăŤă‚‹ďĽŽăťă‚Ś
ăžă‚Śă®ă¬ă‚¸ă‚ąă‚żă«ăŻ\.{dimen75}ăŞă©ă®ă‚ă†ă«0--255ă®ç•ŞĺŹ·ă§ćŚ‡ĺ®šă§ăŤă‚‹
ä»–ďĽŚäşă‚ĺĄĺŤă®ĺ®šçľ©ă‚’ă—ă¦ăŠă‘ă°ăťă‚Śă«ă‚ăŁă¦ćŚ‡ĺ®šă™ă‚‹ă“ă¨ă‚‚ă§ăŤă‚‹ďĽŽă“ă‚Śă‚‰ă®
ă„ăŹă¤ă‹ăŻç‰ąć®ŠăŞç”¨é€”ă«ç”¨ă„ă‚‰ă‚Śă‚‹ďĽäľ‹ăă°\.{count0}ăŻăšăĽă‚¸ç•ŞĺŹ·ăŞă©ă®
ă‚ă†ă«ďĽ‰ă“ă¨ă«ăŞăŁă¦ă„ă‚‹ă®ă§ďĽŚă•ă‚‰ă«user ăŚä˝żăă‚‹ă¬ă‚¸ă‚ąă‚żăŻć¸›ĺ°‘ă™ă‚‹ďĽŽ

\eTeX ă§ăŻďĽŚčż˝ĺŠ&nbsp;ă®ă¬ă‚¸ă‚ąă‚żă¨ă—ă¦ç•ŞĺŹ·ă§č¨€ă†ă¨256--32767ăŚä˝żç”¨ă§ăŤă‚‹ă‚
ă†ă«ăŞăŁăźďĽŽä¸Šă®pdfă«ă‚ă‚‹ă¨ćś€ĺťă®0--255ă¨é•ăŁă¦č‹Ąĺą˛ă®ĺ¶é™ăŻă‚ă‚‹ă‚ă†ă&nbsp;
ăŚďĽŚăťă‚ŚăŻäş›ç´°ăŞč©±ă§ă‚ă‚‹ďĽŽčż˝ĺŠ&nbsp;ă•ă‚ŚăźďĽĺ„ç¨®éˇžă‚ăźă‚ŠďĽ‰$32768-256=32512$ĺ€‹ă®
ă¬ă‚¸ă‚ąă‚żăŻďĽŚăˇă˘ăŞă®ĺŠąçŽ‡ă‚’é‡Ťč¦–ă™ă‚‹ăźă‚sparse registeră¨ă—ă¦ďĽŚă¤ăľă‚ŠďĽŚĺż…č¦
ăŞć™‚ă«ĺ§‹ă‚ă¦ă„ăŞăĽć§‹é€&nbsp;ă®ä¸­ă§ç˘şäżťă•ă‚Śă‚‹ă‚ă†ă«ăŞăŁă¦ă„ă‚‹ďĽŽ

\paragraph{ĺĽŹăŚä˝żç”¨ĺŹŻč˝ă«}
\TeX ă«ăŠă‘ă‚‹ć•°é‡Źă®č¨ç®—ăŻĺ……ĺ®źă—ă¦ă„ă‚‹ă¨ăŻč¨€ă„é›Łă„ďĽŽäľ‹ăă°ďĽŚ
\[
\hbox{|\dimen123|}\leftarrow\frac12(\hbox{|\dimen42|}+\hbox{|\@tempdima|})
\]
ă¨ă„ă†č¨ç®—ă‚’ĺ…ă€…ă®\TeX ă§ć›¸ă“ă†ă¨ă™ă‚‹ă¨ďĽŚ
\begin{verbatim}
\dimen123=\dimen42
\advance\dimen123by\@tempdima
\dimen123=0.5\@tempdima
\end{verbatim}
ă®ă‚ă†ă«ć›¸ă‹ăŞă„ă¨ă„ă‘ăŞă„ďĽŽä»Łĺ…ĄďĽŚĺŠ&nbsp;ç®—ä»Łĺ…ĄďĽŚäą—ç®—ä»Łĺ…ĄďĽŚé™¤ç®—ä»Łĺ…Ąăă‚‰ă„ă—ă‹
ćĽ”ç®—ăŚç”¨ć„Źă•ă‚Śă¦ă„ăŞă„çŠ¶ć…‹ă«ăŞăŁă¦ă„ă‚‹ďĽä¸Šă®ă‚łăĽă‰ă®ă‚ă†ă«ďĽŚ$d_2\mathrel{+\!\!=}
0.8 d_1$ă¨ă„ă†ă‚ă†ăŞĺ®šć•°ĺ€Ťă‚’ĺ†&nbsp;ă™ă‚‹ă“ă¨ăŻĺąłć°—ďĽ‰ďĽŽ

\eTeX ă§ăŻďĽŚăťă®ă¬ă‚¸ă‚ąă‚żă®ćĽ”ç®—ă«ďĽŚä»–ă®ă—ă­ă‚°ă©ăźăłă‚°č¨€čŞžă§ä˝żă‚Źă‚Śă¦ă„ă‚‹ă‚
ă†ăŞć•°ĺĽŹă®čˇ¨çŹľăŚä˝żăă‚‹ă‚ă†ă«ăŞăŁăźďĽŽä¸Šă®PDFă§ăŻĺ®źäľ‹ă¨ă—ă¦
\begin{verbatim}
\ifdim \dimexpr (2pt-5pt)*\numexpr 3-3*13/5\relax + 34pt/2&lt;\wd20
\end{verbatim}
ăŚć›¸ă‹ă‚Śă¦ă„ă‚‹ďĽŽă“ă‚ŚăŻďĽŚ\def\mpt{\,\mathrm{pt}}
{\catcode`\&lt;12\[
 32\mpt=(2\mpt-5\mpt)\left(3-\mathop{\mathrm{div}}(3\cdot 13,5)\right)
+\frac{34\mpt}{2}&lt;\text{{\tt \char'134 box20}ă®ĺą…}
\]}
ăŚçśźă‹ĺ˝ă‹ă‚’ĺ¤ĺ®šă—ă¦ă„ă‚‹ă“ă¨ă«ăŞă‚‹ďĽŽ

\paragraph{\.{middle} primitive}
\TeX ă«\.{left}, \.{right}ă¨ă„ă†primitiveăŚă‚ă‚ŠďĽŚăťă‚Śă‚’ä˝żăă°ć‹¬
ĺĽ§ă®ĺ¤§ăŤă•ăŚč‡Şĺ‹•čŞżć•´ă•ă‚Śă‚‹ă®ăŻă‚ăŹçźĄă‚‰ă‚Śă¦ă„ă‚‹ďĽŽ\eTeX ă§ăŻďĽŚ
ă•ă‚‰ă«\.{middle}\indcs{middle}\ primitiveăŚčż˝ĺŠ&nbsp;ă•ă‚ŚăźďĽŽ

ĺ…·ä˝“äľ‹ă‚’čż°ăąă‚‹ďĽŽ
{\catcode`\|12
\def\set#1#2{\setbox0=\hbox{$\displaystyle #1,#2$}%
\left\{\, \vphantom{\copy0}#1 \,\right|\!\left.\, \vphantom{\copy0}#2 \,\right\}}
\def\eset#1#2{\left\{\, #1 \,\middle|\, #2 \,\right\}}
\[ \set{n+\frac12}{n\in \omega} \eset{n+\frac12}{n\in \omega} \]}
ă“ă‚ŚăŻä»Ąä¸‹ă®sourceă§ĺ‡şĺŠ›ă—ăźă‚‚ă®ă§ă‚ă‚‹ďĽš

{\narrowbaselines
\begin{verbatim}
\def\set#1#2{\setbox0=\hbox{$\displaystyle #1,#2$}%
  \left\{\, \vphantom{\copy0}#1 \,\right|\!\left.\, %
  \vphantom{\copy0}#2 \,\right\}}
\def\eset#1#2{\left\{\, #1 \,\middle|\, #2 \,\right\}}
\[ \set{n+\frac12}{n\in \omega} \eset{n+\frac12}{n\in \omega} \]
\end{verbatim}}
ä¸ˇć–ąă¨ă‚‚é›†ĺă®čˇ¨č¨ă‚’čˇŚă†ă‚łăžăłă‰ă§ă‚ă‚‹ďĽŽ\TeX ćµă®\.{set}ă§ăŻ2ă¤ă®
\.{left}, \.{right}ă®çµ„ă§ĺ®źçŹľă•ă›ăŞă‘ă‚Śă°ăŞă‚‰ăšďĽŚăťă®ăźă‚ă«{\catcode`\|=12$|$}ă®
ĺ·¦ĺ´ă¨ĺŹłĺ´ă«ĺ…Ąă‚‹ĺĽŹă®ćś€ĺ¤§ĺŻ¸ćł•ă‚’ć¸¬ĺ®šă™ă‚‹ă¨ă„ă†éť˘ĺ€’ăŞć–ąćł•ă‚’ä˝żăŁă¦ă„ă‚‹ďĽŽăťă®
ä¸ŠďĽŚă“ă®ĺ®šçľ©ă§ăŻ\.{textstyle}ä»Ąä¸‹ă®ć•°ĺĽŹďĽć–‡ä¸­ć•°ĺĽŹă¨ă‹ďĽ‰ă§ăŻăťă®ăľ
ăľä˝żăăšďĽŚăťă‚Śă«ă‚‚ĺŻľĺżśă•ă›ă‚ă†ă¨ă™ă‚‹ă¨éť˘ĺ€’ă«ăŞă‚‹ďĽŽä¸€ć–ąďĽŚ\eTeX ćµă®
\.{eset}ă§ăŻďĽŚä˝•ă‚‚č€ăăšă«
\.{left}, \.{middle}, \.{right}ă&nbsp;ă‘ă§ĺ®źçŹľă§ăŤă‚‹ďĽŽ

\paragraph{\TeXXeT\ \textmd{(\texttt{TeX-{}-XeT})}}
left-to-rightă¨right-to-leftă‚’ć··ć¤Ťă§ăŤă‚‹ă¨ă„ă†ć©źč˝ă§ă‚ă‚‹ă‚‰ă—ă„ďĽŽ
ăă–ă©ă‚¤čŞžă‚ăźă‚Šă®çµ„ç‰ă«ä˝żăă‚‹ă‚‰ă—ă„ăŚďĽŚă‚ăŹçźĄă‚‰ăŞă„ďĽŽ
ă“ă“ă§ă®RtoLăŻLtoRă«çµ„ă‚“ă&nbsp;ă‚‚ă®ă‚’é€†é&nbsp;†ă«ă—ă¦ă„ă‚‹ă&nbsp;ă‘ă®ă‚ă†ăŞ
ć°—ăŚă™ă‚‹ďĽŽ

\medskip

ă¨ă‚Šă‚ăăšä¸€ç›®ă«ă¤ăŤăťă†ăŞć‹ˇĺĽµć©źč˝ă¨ă„ăŁăźă‚‰ă“ă‚Śăă‚‰ă„ă&nbsp;ă‚Ťă†ă‹ďĽŽä»–ă«ă‚‚
tracingć©źč˝ă‚„ćťˇä»¶ĺ¤ć–­ć–‡ă®ĺĽ·ĺŚ–ăŞă©ă‚ă‚‹ăŚďĽŚăťă“ă‚‰čľşăŻă‘ăă¨ă—ăŞă„ă®ă§ă“ă“
ă§ç´ąä»‹ă™ă‚‹ă®ăŻçśç•Ąă™ă‚‹ă“ă¨ă«ă—ă‚ă†ďĽŽ
\end{quotation}

\epTeX ă§ăŻă“ă“ă«čż°ăąăźä»Łčˇ¨çš„ăŞć©źč˝ă‚’ĺ«ă‚ďĽŚă»ă¨ă‚“ă©ă™ăąă¦ă®ć©źč˝ă‚’ĺ®źčŁ…ă—ă¦
ă„ă‚‹ă¤ă‚‚ă‚Šă§ă‚ă‚‹
\footnote{%
  ă•ă‚‰ă«ďĽŚă¬ă‚¸ă‚ąă‚żă®ĺ€‹ć•°ă«ă¤ă„ă¦ăŻďĽŚĺ„ç¨®éˇž65536ĺ€‹ăľă§ä˝żăă‚‹ă‚ă†ă«ăŞăŁă¦ă„ă‚‹ďĽć¬ˇçŻ€ĺŹ‚ç…§ďĽ‰ďĽŽ
}ďĽŽăźă&nbsp;ďĽŚ\TeXXeT ă‚’ĺ’Ść–‡ă§ä˝żă†ă¨ç´„ç‰©
ă®ä˝Ťç˝®ăŚăšă‚Śăźă‚Šç©şç™˝ăŚăŠă‹ă—ă‹ăŁăźă‚Šă™ă‚‹ă‘ă‚Śă©ă‚‚ďĽŚăťă“ă®äż®ć­ŁăŻĺ¤§ĺ¤‰ă«ć€ťă
ă‚‹ă—ďĽŚč‹¦ĺŠ´ă—ă¦ĺ®źčŁ…ă™ă‚‹ć„Źĺ‘łăŚă‚ă‚‹ă®ă‹ç–‘ĺ•ŹăŞă®ă§ć”ľç˝®ă—ă¦ă„ă‚‹ďĽŽ

ä»Ąä¸‹ďĽŚ\eTeX ć‹ˇĺĽµă‚’\pTeX ć‹ˇĺĽµă¨ăžăĽă‚¸ă™ă‚‹ă«ă‚ăźăŁă¦čŞżć•´ă—ăźç®‡ć‰€ă‚’čż°ăąă‚‹ďĽŽ
\begin{cslist}
 \csitem[\.{lastnodetype} (read-only integer)]
  \pTeX ć‹ˇĺĽµă§ăŻďĽŚ\TeX ă¨ćŻ”čĽă—ă¦\node{dir_node}ă¨\node{disp_node}ă¨ă„ă†2ç¨®éˇžă®ăŽăĽă‰ăŚ
  čż˝ĺŠ&nbsp;ă•ă‚ŚăźďĽŽĺ‰Ťč€…ăŻďĽŚçŹľĺś¨ă®ăŞă‚ąăă®ä¸­ă«é•ă†çµ„ć–ąĺ‘ă®boxă‚’ćŚżĺ…Ąă™ă‚‹éš›ă«ĺŻ¸ćł•ă‚’čŁść­Łă™ă‚‹ăźă‚ă«ä˝śă‚‰ă‚ŚďĽŚ
  \.{hbox}ă‚„\.{vbox}ă®ă‚łăłă†ăŠă¨ăŞăŁă¦ă„ă‚‹ďĽŽ
  ăľăźĺľŚč€…ăŻďĽŚć¬§ć–‡ć–‡ĺ­—ă®ă™ăĽă‚ąă©ă‚¤ăłčŁść­Łă®ăźă‚ă«ä˝żă‚Źă‚Śă‚‹ďĽŽ

  \epTeX~110102ăľă§ăŻă“ă‚Śă‚‰ă®ăŽăĽă‰ă‚‚\.{lastnodetype}ă®ĺ€¤ă¨ă—ă¦ĺ‡şĺŠ›ă•ă›ă‚‹ă‚ă†ă«ă—ăźďĽŽ
  ă—ă‹ă—ďĽŚä¸ˇč€…ă¨ă‚‚ă«\epTeX ăŚč‡Şĺ‹•çš„ă«ćŚżĺ…Ąă™ă‚‹ďĽă¦ăĽă‚¶ăĽăŚć„Źč­ă™ă‚‹ĺż…č¦ăŻăŞă„ďĽ‰ăŽăĽă‰ă§ă‚ă‚‹ă“ă¨ă‹ă‚‰ďĽŚ
  \epTeX~110227ä»Ąé™Ťă§ăŻ\node{dir_node}ă¨\node{disp_node}ăŻ
  \.{lastnodetype}ă®ĺŻľč±ˇă¨ă™ă‚‹ă€Śćś€ĺľŚă®ăŽăĽă‰ă€Ťă¨ăŻăŞă‚‰ăŞă„ă‚ă†ă«ă—ă¦ă„ă‚‹
  \footnote{%
    ćś€ĺľŚă®ăŽăĽă‰ăŚ\node{dir_node}ă§ă‚ăŁăźĺ&nbsp;´ĺďĽŚ\.{lastnodetype}ăŻăťă®ăŽăĽă‰ăŚć&nbsp;Ľç´Ťă—ă¦ă„ă‚‹
    \node{hlist_node}ă‹\node{vlist_node}ă®ç¨®éˇžă‚’čż”ă™ďĽŽ
  }ďĽŽ\\
  \parbox{.9\linewidth}{%
  \begin{multilist}{3}{\hfil\hskip1.5zw#:&amp;\quad#\qquad\hfil}
  \item $-1$&amp;none (empty list)\cr\item 0&amp;char node\cr\item 1&amp;hlist node\cr
  \item 2&amp;vlist node\cr\item 3&amp;rule node\cr\item 4&amp;ins node\cr
  \item 5&amp;mark node\cr\item 6&amp;adjust node\cr\item 7&amp;ligature node\cr
  \item 8&amp;disc node\cr\item 9&amp;whatsit node\cr\item 10&amp;math node\cr
  \item 11&amp;glue node\cr\item 12&amp;kern node\cr\item 13&amp;penalty node\cr
  \item 14&amp;unset node\cr\item 15&amp;math mode nodes\cr
  \end{multilist}}

 \csitem[\.{currentiftype} (read-only integer)]
  ćťˇä»¶ĺ¤ć–­ć–‡ă¨ăťă‚Śă‚’čˇ¨ă™ć•°ĺ­—ă¨ă®ĺŻľĺżśăŻä»Ąä¸‹ă®ă‚ă†ă«ăŞăŁă¦ă„ă‚‹
  ďĽ\epTeX~190709ä»Ąé™ŤďĽ‰ďĽŽ
  21,~22ăŻ\hologo{pdfTeX}ç”±ćťĄă®ćťˇä»¶ĺ¤ć–­ć–‡ďĽĺľŚčż°ďĽ‰ďĽŚ
  23--32ăŚ\pTeX ć‹ˇĺĽµă§čż˝ĺŠ&nbsp;ă•ă‚Śăźćťˇä»¶ĺ¤ć–­ć–‡ă«ĺŻľĺżśă™ă‚‹ďĽŽ\\
  \parbox{.9\linewidth}{%
  \begin{multilist}{3}{\hfil\hskip1.5zw#:&amp;\quad#\qquad\hfil}
  \item 1&amp;\.{if}\cr\item 2&amp;\.{ifcat}\cr\item 3&amp;\.{ifnum}\cr\item 4&amp;\.{ifdim}\cr
  \item 5&amp;\.{ifodd}\cr\item 6&amp;\.{ifvmode}\cr\item 7&amp;\.{ifhmode}\cr
  \item 8&amp;\.{ifmmode}\cr\item 9&amp;\.{ifinner}\cr\item 10&amp;\.{ifvoid}\cr
  \item 11&amp;\.{ifhbox}\cr\item 12&amp;\.{ifvbox}\cr\item 13&amp;\.{ifx}\cr
  \item 14&amp;\.{ifeof}\cr\item 15&amp;\.{iftrue}\cr\item 16&amp;\.{iffalse}\cr
  \item 17&amp;\.{ifcase}\cr\item 18&amp;\.{ifdefined}\cr\item 19&amp;\.{ifcsname}\cr
  \item 20&amp;\.{iffontchar}\cr\item \bf 21&amp;\.{ifincsname}\cr\item \bf 22&amp;\.{ifpdfprimtive}\cr
  \item \bf 23&amp;\.{iftdir}\cr\item \bf 24&amp;\.{ifydir}\cr
  \item \bf 25&amp;\.{ifddir}\cr\item \bf 26&amp;\.{ifmdir}\cr\item \bf 27&amp;\.{iftbox}\cr
  \item \bf 28&amp;\.{ifybox}\cr\item \bf 29&amp;\.{ifdbox}\cr\item \bf 30&amp;\.{ifmbox}\cr
  \item \bf 31&amp;\.{ifjfont}\cr\item \bf 32&amp;\.{iftfont}\cr
  \end{multilist}}

 \csitem[\.{fontcharwd}, \.{fontcharht}, \.{fontchardp}, \.{fontcharic} (dimension)]
  ĺźşćś¬çš„ă«ă•ă‚©ăłăĺ†…ă®ć–‡ĺ­—ă®ĺŻ¸ćł•ă‚’ĺ†…é¨é•·ă•ă¨ă—ă¦čż”ă™ĺ‘˝ä»¤ă§ă‚ă‚‹ăŚďĽŚ
  ć¬§ć–‡ă•ă‚©ăłăă¨ĺ’Ść–‡ă•ă‚©ăłăă‚’ĺ¤ĺĄă—ďĽŚăťă‚Śă«ĺżśăă¦ĺ‡¦ç†ăŚĺ†ă‹ă‚Śă‚‹ďĽŽ
  ăťă‚Śă«äĽ´ă„ďĽŚč¨±ĺ®ąă•ă‚Śă‚‹ĺĽ•ć•°çŻ„ĺ›˛ă¨ć„Źĺ‘łăŚç•°ăŞă‚‹ă“ă¨ă«ćł¨ć„Ź
  ďĽ\epTeX~190709ä»Ąé™ŤďĽ‰ďĽŽ
  ä»Ąä¸‹ďĽŚ|??|ăŻ|wd|, |ht|, |dp|, |ic|ă®ă„ăšă‚Śă‹ă‚’čˇ¨ă™ďĽŽ
  \begin{itemize}
    \item ĺ’Ść–‡ă•ă‚©ăłăă®ĺ&nbsp;´ĺďĽš\.{fontchar??} &lt;Japanese font&gt; &lt;number&gt;\\
      &lt;Japanese font&gt;ă‚’$f$ďĽŚ&lt;number&gt;ă‚’$c$ă¨ăŠăŹă¨ďĽŚ
      \begin{itemize}
        \item $c \geq 0$ă®ĺ&nbsp;´ĺăŻďĽŚ$c$ă‚’\emph{ć–‡ĺ­—ă‚łăĽă‰}ă¨ăżăŞă™ďĽŽ
          $c$ăŚĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă¨ă—ă¦ćś‰ĺŠąă§ă‚ă‚Śă°ďĽŚ
          ĺ’Ść–‡ă•ă‚©ăłă$f$ă«ăŠă‘ă‚‹ć–‡ĺ­—ă‚łăĽă‰$c$ă®ĺ’Ść–‡ć–‡ĺ­—ă®ĺŻ¸ćł•ĺ€¤ă‚’čż”ă™ďĽŽ
          ĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă¨ă—ă¦ç„ˇĺŠąă§ă‚ă‚Śă°0\,ptă‚’čż”ă™ďĽŽ
        \item $c &lt; 0$ă®ĺ&nbsp;´ĺăŻďĽŚ$-(c+1)$ă‚’\emph{ć–‡ĺ­—ă‚żă‚¤ă—}ă¨ăżăŞă™ďĽŽ
          ĺ’Ść–‡ă•ă‚©ăłă$f$ă«ć–‡ĺ­—ă‚żă‚¤ă—$-(c+1)$ăŚĺ®šçľ©ă•ă‚Śă¦ă„ă‚Śă°ăťă®ĺŻ¸ćł•ĺ€¤ă‚’čż”ă—ďĽŚ
          ćśŞĺ®šçľ©ă§ă‚ă‚Śă°0\,ptă‚’čż”ă™ďĽŽ
      \end{itemize}
    \item ć¬§ć–‡ă•ă‚©ăłăă®ĺ&nbsp;´ĺďĽš\.{fontchar??} &lt;font&gt; &lt;8-bit number&gt;\\
      ă‚ŞăŞă‚¸ăŠă«ă®\eTeX ă¨ĺŚăćŚ™ĺ‹•ă§ă‚ă‚‹ďĽŽă™ăŞă‚ŹăˇďĽŚ
      ĺĽ•ć•°ă«$c \geq 256$ă‚„$c &lt; 0$ă‚’ä¸Žăă‚‹ă¨
      \verb+! Bad character code (256).+
      ă®ă‚ă†ă«ă‚¨ă©ăĽăŚĺ‡şă‚‹ďĽŽ
  \end{itemize}

 \csitem[\.{iffontchar} &lt;font&gt; &lt;number&gt;]
  \begin{itemize}
    \item ĺ’Ść–‡ă•ă‚©ăłăă®ĺ&nbsp;´ĺďĽš \.{iffontchar} &lt;Japanese font&gt; &lt;number&gt;\\
      &lt;Japanese font&gt;ă‚’$f$ďĽŚ&lt;number&gt;ă‚’$c$ă¨ăŠăŹă¨ďĽŚ
      \begin{itemize}
        \item $c \geq 0$ă®ĺ&nbsp;´ĺăŻ$c$ă‚’\emph{ć–‡ĺ­—ă‚łăĽă‰}ă¨ăżăŞă—ďĽŚ
          $c$ăŚĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă¨ă—ă¦ćś‰ĺŠąă‹ă©ă†ă‹ă‚’ĺ¤ĺ®šă™ă‚‹
          \footnote{\pTeX ă§ăŻă€Śä»»ć„Źă®ĺ’Ść–‡ă•ă‚©ăłăă«ăŻďĽŚĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă¨ă—ă¦ćś‰ĺŠąăŞ
          ĺ…¨ă¦ă®ć–‡ĺ­—ăŚĺ­ĺś¨ă™ă‚‹ă€Ťă¨ă„ă†ć‰±ă„ă§ă‚ă‚‹ăźă‚ďĽŚĺ’Ść–‡ă•ă‚©ăłă$f$ă«ă‚ă‚‰ăŞă„ďĽŽ}ďĽŽ
        \item $c &lt; 0$ă®ĺ&nbsp;´ĺăŻ$-(c+1)$ă‚’\emph{ć–‡ĺ­—ă‚żă‚¤ă—}ă¨ăżăŞă—ďĽŚ
          ĺ’Ść–‡ă•ă‚©ăłă$f$ă«ć–‡ĺ­—ă‚żă‚¤ă—$-(c+1)$ăŚĺ®šçľ©ă•ă‚Śă¦ă„ă‚‹ă‹ă©ă†ă‹ă‚’ĺ¤ĺ®šă™ă‚‹ďĽŽ
      \end{itemize}
    \item ć¬§ć–‡ă•ă‚©ăłăă®ĺ&nbsp;´ĺďĽš \.{iffontchar} &lt;font&gt; &lt;8-bit number&gt;\\
      ă‚ŞăŞă‚¸ăŠă«ă®\eTeX ă¨ĺŚăćŚ™ĺ‹•ă§ă‚ă‚‹ďĽŽă™ăŞă‚ŹăˇďĽŚ
      ĺĽ•ć•°ă«$c \geq 256$ă‚„$c &lt; 0$ă‚’ä¸Žăă‚‹ă¨
      \verb+! Bad character code (256).+
      ă®ă‚ă†ă«ă‚¨ă©ăĽăŚĺ‡şă‚‹ďĽŽ
  \end{itemize}
\end{cslist}

\begin{dangerous}
  ä¸Šč¨ă§ă€Śĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă¨ă—ă¦ćś‰ĺŠąă‹ă©ă†ă‹ă€ŤăŻďĽŚé–˘ć•°|is_char_kanji|ă‚’ĺŹ‚ç…§ďĽŽ
  ă“ă®é–˘ć•°ăŻĺ†…é¨ă‚łăĽă‰ă«ă‚ăŁă¦ç•°ăŞă‚‹ăźă‚ďĽŚăžă‚Żă­ă§ĺ®źčŁ…ă™ă‚‹ă®ăŻéť˘ĺ€’ă§ă‚ă‚‹ăŚďĽŚ
  \epTeX~190709ä»Ąé™Ťă§ăŻ\.{iffontchar}ă§ĺ®ąć“ă«ĺ®źçŹľă§ăŤă‚‹ďĽŽ
  ăŞăŠďĽŚĺ†…é¨Unicodeă®\upTeX ă§ăŻ0ä»Ąä¸Š0xFFFFFFä»Ąä¸‹ă®ĺ€¤ăŚĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă¨ă—ă¦
  ćś‰ĺŠąă§ă‚ă‚‹ďĽŽ% https://github.com/texjporg/tex-jp-build/issues/160
\end{dangerous}


\section{\OMEGA ç”±ćťĄă®ć©źč˝ďĽć—§ĺŤç§°ďĽš\texttt{FAM256}ă‘ăăďĽ‰}
\epTeX ă«ăŻďĽŚćŽ˛ç¤şćťż\TeX\ Q\ \&amp;\ Aă®ĺ±±ćś¬ć°Źă®ć›¸ăŤčľĽăż
\cite{yamamoto}ă«ĺşćż€ă•ă‚Śă¦ä˝śăŁăźďĽŚćś¬çŻ€ă§čŞ¬ćŽă™ă‚‹\OMEGA ă®ä¸€é¨
ć©źč˝ă‚’ä˝żăă‚‹ă‚ă†ă«ă™ă‚‹ă‘ăăăŚĺ­ĺś¨ă™ă‚‹ďĽŽ
ă“ă‚ŚăŻ\texttt{FAM256}ă‘ăăă¨ĺ‘Ľă°ă‚ŚďĽŚä»Šăľă§ăŻ
ă€Ś\epTeX ćś¬ä˝“ă¨ăŻä¸€ĺżśĺĄć‰±ă„ă§ďĽŚ\epTeX ă®é…Ťĺ¸ďĽŚĺŹŠăł
W32\TeX, \TeX~Liveă®ăă‚¤ăŠăŞă§ăŻć¨™ćş–ă§ćś‰ĺŠąă«ăŞăŁă¦ă„ăźă&nbsp;ă‘ă€Ťă¨ă„ă†ć‰±ă„ă§ă‚ăŁăźăŚďĽŚ
ăťă‚Śă§ăŻĺ©ç”¨č€…ăŚć··äą±ă™ă‚‹ă®ă§
\emph{ă€Ś\texttt{FAM256}ă‘ăăăŻ\epTeX~160201ä»Ąé™Ťă‹ă‚‰ăŻĺ‡ă‚Šé›˘ă•ăŞă„ă€Ť}
ă¨ă“ă“ă§ĺ®Łč¨€ă™ă‚‹ďĽŽ
ćś¬ă‰ă‚­ăĄăˇăłăă®ćś€ĺľŚă®ăšăĽă‚¸\footnote{ăźă&nbsp;ă—ďĽŚă‚˝ăĽă‚ąă•ă‚ˇă‚¤ă«ă§č¨€ăă°
\texttt{fam256d.tex}ďĽćś¬ć–‡ďĽ‰ă¨\texttt{fam256p.tex}ďĽpreambleé¨ďĽ‰ă«ĺŻľĺżśă™ă‚‹ďĽŽ}ă«
ăˇă‚‡ăŁă¨ă—ăźă‚µăłă—ă«ă‚’čĽ‰ă›ă¦ă‚ă‚‹ďĽŽ

ćś¬çŻ€ă§čż°ăąă‚‹čż˝ĺŠ&nbsp;ć©źč˝ăŻextended modeă§ăŞăŹă¦ă‚‚ćś‰ĺŠąă«ăŞăŁă¦ă„ă‚‹ďĽŽ
ăźă&nbsp;ă—ďĽŚĺľŚă«čŞ¬ćŽă™ă‚‹ă€Śă¬ă‚¸ă‚ąă‚żăŚĺ„ç¨®éˇž65536ĺ€‹ăľă§ă€ŤăŻďĽŚ
extended modeă®ć™‚ă«é™ă‚Šćś‰ĺŠąă«ăŞă‚‹ďĽŽ

\paragraph{ć•°ĺĽŹă•ă‚©ăłăĺ¶é™ă®ç·©ĺ’Ś}
\OMEGA ă®ĺ¤§ăŤăŞç‰ąĺľ´ă¨ă—ă¦ăŻďĽŚ\TeX ĺ†…é¨ă®ă‡ăĽă‚żć§‹é€&nbsp;ă‚’ć”ąĺ¤‰ă—
\footnote{č©łă—ăŹăŻ\texttt{texk/web2c/texmfmem.h}ä¸­ă®ĺ…±ç”¨ä˝“%
\texttt{memoryword}ă®ĺ®šçľ©ă‚’ĺŹ‚ç…§ďĽŽĺ¤§é›‘ćŠŠă«č¨€ă†ă¨ďĽŚ
1ă¤ă®ă€Śăˇă˘ăŞč¦ç´&nbsp;ă€Ťă«2ă¤ă®32\,bitć•´ć•°ă‚’ĺŚć™‚ă«ć&nbsp;Ľç´Ťă§ăŤă‚‹ă‚ă†ă«ăŞăŁă¦ă„ă‚‹ďĽŽ
ăŞăŠďĽŚĺ°‘ăŞăŹă¨ă‚‚tetex3ä»Ąé™Ťă§ăŻ\texttt{memoryword}ăŻ8ăă‚¤ăă§ă‚ă‚‹ăŚďĽŚ
\TeX 82ă§ăŻ1ă¤ă®ă€Śăˇă˘ăŞč¦ç´&nbsp;ă€Ťă‚’2ă¤ă®32\,bitć•´ć•°ă¨ă—ă¦ä˝żă†ă“ă¨ăŻă—ă¦ă„ăŞă„ďĽŽ
%  [TODO] ć­Łç˘şă«ăŻ "big TeX" ă‹ă‚‰ă&nbsp;ăŚďĽŚ
%  ă»big TeX ăŻă„ă¤ă‹ă‚‰ă‚ă‚‹ă®ă‹ďĽź ă»ăťă‚ŚăŚć¨™ćş–ă«ăŞăŁăźă®ăŻă„ă¤ă‹ă‚‰ďĽź
}ďĽŚ
\TeX ă«ĺľ“ćťĄă‹ă‚‰ĺ­ĺś¨ă—ă¦ă„ăźă„ăŹă¤ă‹ă®ă€Ś256ĺ€‹ĺ¶é™ă€Ťă‚’$2^{16}$ĺ€‹ă«ăľă§ç·©ĺ’Śă—ăźă“ă¨ăŚćŚ™ă’ă‚‰ă‚Śă‚‹ďĽŽ
ĺŚć§ă«ďĽŚ\OMEGA ă§ăŻďĽ\cite{yamamoto}ă«ă‚‚ă‚ă‚‹ă‚ă†ă«ďĽ‰ć•°ĺĽŹă•ă‚©ăłăă‚’
ĺŚć™‚ă«256ĺ€‹ăľă§ç”¨ă„ă‚‹ă“ă¨ăŚă§ăŤďĽŚĺ„ă•ă‚©ăłăă‚‚65536ć–‡ĺ­—ăľă§č¨±ă•ă‚Śă‚‹ă‚ă†ă«ăŞăŁă¦ă„ă‚‹ďĽŽ

\medskip

\epTeX ă§ăŻďĽŚä¸­é€”ĺŤŠç«Żă&nbsp;ăŚďĽŚć•°ĺĽŹă•ă‚©ăłă1ă¤ă‚ăźă‚Š
ă®ä˝żç”¨ĺŹŻč˝ć–‡ĺ­—ć•°ăŻ256ĺ€‹ă®ăľăľă§ďĽŚĺŚć™‚ă«ć•°ĺĽŹă•ă‚©ăłăă‚’256ĺ€‹ăľă§ä˝żăă‚‹ă‚ă†
ă«ă—ă¦ă„ă‚‹ďĽŽĺźşćś¬çš„ă«ăŻ\OMEGA ă¨ĺŚć§ă®ć–ąćł•ă‚’ç”¨ă„ă¦ă„ă‚‹ăŚďĽŚ
ĺ†…é¨ă§ă®ă‡ăĽă‚żć§‹é€&nbsp;ă«é•ă„ăŚă‚ă‚‹ďĽć•°ĺ­—ăŻă™ăąă¦bitĺą…ďĽ‰ďĽš
\begin{center}
\small\baselineskip=1.5zw
\begin{tabular}{crrrrr}%
\toprule
    &amp;category&amp;family&amp;char&amp;\multicolumn{1}{c}{math code}
    &amp;\multicolumn{1}{c}{delimiter code}\\\midrule
\TeX82&amp;3&amp;4&amp;8 &amp;$3+4+8=15$ &amp;$3+\delbit{4+8}{small}+\delbit{4+8}{large}=27$\\
\OMEGA&amp;3&amp;8&amp;16&amp;$3+8+16=27$&amp;$(3+\delbit{8+16}{small},\delbit{8+16}{large})=(27,24)$\\
\epTeX&amp;3&amp;8&amp;8 &amp;$3+8+8=21$&amp;$(3+\delbit{8+8}{small},\delbit{8+8}{large})=(19,16)$\\\bottomrule
\end{tabular}
\end{center}

\def\bits#1{&lt;\textup{#1}-bit\ number&gt;}
\TeX ă«ćś¬ćťĄă‚ăŁăźă—ăŞăźă†ă‚Łă–ăŻäş’ćŹ›ć€§ç¶­ćŚă®ăźă‚ă«ĺŚăĺ‹•ä˝śă¨ă™ă‚‹ĺż…č¦ăŚă‚ă‚‹ă®ă§ďĽŚ
16ç•Şă‹ă‚‰255ç•Şă®ă•ă‚©ăłăă‚’ĺ©ç”¨ă™ă‚‹éš›ă«ăŻĺĄă®ă—ăŞăźă†ă‚Łă–ăŚĺż…č¦ă¨ăŞă‚‹ďĽŽďĽĺ®źčŁ…č‡Ş
ä˝“ă«\OMEGA ă®ćµĺ„€ă‚’ä˝żăŁă¦ă„ă‚‹ă‹ă‚‰ďĽ‰
ă“ă“ă§ăŻďĽŚ\OMEGA ă®ă—ăŞăźă†ă‚Łă–ĺŤă‚’ćµç”¨ă™ă‚‹ă“ă¨ă«ă—ăźďĽŽ
ă™ăŞă‚ŹăˇďĽŚä»Ąä¸‹ă®ă—ăŞăźă†ă‚Łă–ăŚčż˝ĺŠ&nbsp;ă•ă‚Śă¦ă„ă‚‹\footnote{\OMEGA ă§ăŻ\bits{8}ă®ă¨ă“ă‚ŤăŚ\bits{16}ă«
ăŞăŁă¦ă„ă‚‹ďĽŽ}ďĽŽ
\begin{cslist}[itemsep=\dimexpr-\baselineskip+\medskipamount]
 \csitem[\.{omathcode} \bits{8}\texttt{=}\bits{27}]\ 
 \csitem[\.{omathcode} \bits{8}]\ 
 \csitem[\.{omathchar} \bits{27}]\ 
 \csitem[\.{omathaccent} \bits{27}]\ 
 \csitem[\.{omathchardef} &lt;control sequence&gt;\texttt{=}\bits{27}]\ 
 \csitem[\.{odelcode} \bits{8}\texttt{=}\bits{27}\ \bits{24}]\ 
 \csitem[\.{odelimiter} \bits{27}\ \bits{24}]\ 
 \csitem[\.{oradical} \bits{27}\ \bits{24}]\ 
\end{cslist}
\vspace{-\baselineskip}
ă“ă“ă§ďĽŚ27\,bită¨ă‹24\,bită®č‡Şç„¶ć•°ă®ć„Źĺ‘łă«ă¤ă„ă¦ăŻďĽŚä¸Šă®čˇ¨ă®
\OMEGA ă®čˇŚă‚’ĺŹ‚ç…§ă—ă¦ć¬˛ă—ă„ďĽŽä¸Šă«ć›¸ă„ăźĺ†…é¨ă®ă‡ăĽă‚żć§‹é€&nbsp;ă‹ă‚‰ćŽ¨ć¸¬ă§ăŤă‚‹é€šă‚ŠďĽŚ
\.{omathchar}ç­‰ă®character codeă®ćŚ‡ĺ®šă«ä˝żă‚Źă‚Śă‚‹16\,bită®ć•°ĺ€¤ă®ă†ăˇ
ĺ®źéš›ă«ä˝żă‚Źă‚Śă‚‹ă®ăŻä¸‹ä˝Ť8\,bită§ă‚ă‚ŠďĽŚä¸Šä˝Ť8\,bităŻç„ˇč¦–ă•ă‚Śă‚‹ďĽŽ
äľ‹ăă°ďĽŚ|\omathchar"4012345|ă¨|\omathchar"4010045|ăŻĺŚçľ©ă§ă‚ă‚‹ďĽŽ

ăŞăŠďĽŚ|\mathcode|~\bits 8ă¨ă—ă¦math codeĺ€¤ă‚’ĺŹ–ĺľ—ă§ăŤă‚‹ć–‡ĺ­—ăŻă•ă‚ˇăźăŞç•ŞĺŹ·ăŚ16ćśŞćş€ă®ă‚‚ă®
ďĽă™ăŞă‚ŹăˇďĽŚ\TeX82ă«ăŠă‘ă‚‹|\mathcode|ć&nbsp;Ľç´Ťĺ€¤ă®ĺ˝˘ĺĽŹă«ĺ˝“ă¦ăŻăľă‚‹ă‚‚ă®ďĽ‰ă«é™ă‚‰ă‚Śă‚‹ďĽŽ
delimiter codeă«ă¤ă„ă¦ă‚‚ĺŚć§ă§ă‚ă‚‹ďĽŽ
ă•ă‚‰ă«ďĽŚ|\odelcode|~\bits 8ă¨ă—ă¦51\,bită®ĺ˝˘ĺĽŹă®delimiter codeă‚’ĺŹ–ĺľ—ă™ă‚‹ă“ă¨ăŻă§ăŤăŞă„
ďĽ$-1$ăŚčż”ă‚‹ďĽ‰ďĽŽ

\medskip
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ćś€čż‘ă®\pLaTeXďĽ2016/11/29ä»Ąé™ŤďĽ‰ăŻă“ă‚Śă‚’é¨ĺ†çš„ă«ă‚µăťăĽăă—ă¦ă„ă¦ďĽŚ
\emph{\.{DeclareMathAlphabet}ă§ä˝żă†ă“ă¨ă®ă§ăŤă‚‹ć•°ĺĽŹç”¨ă‚˘ă«ă•ă‚ˇă™ăăă®
ä¸Šé™ă&nbsp;ă‘ăŻ}256ĺ€‹ă«ć‹ˇĺĽµă•ă‚Śă¦ă„ă‚‹ďĽŽ
% ă‚‚ăˇă‚Ťă‚“ă“ă‚Śă«ăŻćś€čż‘ă®\LaTeXďĽ2015/01/01ä»Ąé™ŤďĽ‰ăŚĺż…č¦ă§ă‚ă‚‹ďĽŽ
% ăľăźďĽŚĺ°‘ă—ĺ‰ŤďĽ2016/09/08ä»Ąĺ‰ŤďĽ‰ă®\pLaTeX ă§ă‚ă‚Śă°
% \begin{verbatim}
% \makeatletter
% \mathchardef\e@mathgroup@top=256
% \makeatother
% \end{verbatim}
% ă‚’ă—ăŞă‚˘ăłă–ă«ă«č¨čż°ă™ă‚‹ĺż…č¦ăŚă‚ăŁăźďĽŽ
ă&nbsp;ăŚďĽŚă“ă‚Śă&nbsp;ă‘ă§ăŻč¨ĺŹ·éˇžă®ĺ®šçľ©ă«ç”¨ă„ă‚‰ă‚Śă‚‹
|\DeclareMathSymbol|ă‚„|\DeclareMathDelimiter|ăŚ|\omathchar|ă‚„
|\odelcode|ă‚’ä˝żç”¨ă—ăŞă„ă®ă§ä¸ŤĺŤĺ†ă§ă‚ă‚‹ďĽŽ
ĺ®źé¨“çš„ă¨ć›¸ă‹ă‚Śă¦ăŻă„ă‚‹ăŚďĽŚ
ĺ±±ćś¬ć°Źă«ă‚ă‚‹ă€Śćś€ä˝Žé™ă®ă‘ăă‚±ăĽă‚¸ă€Ť\cite{yamamoto3}ďĽŚăľăźăŻă“ă‚Śă‚’
ćś€ć–°ă®\LaTeX ă«čż˝éšŹă—ă¦ăľă¨ă‚ç›´ă•ă‚Śăź\Pkg{mathfam256}ă‘ăă‚±ăĽă‚¸
\footnote{\url{https://ctan.org/pkg/mathfam256}ďĽŽ}ă‚’
ä˝żă†ă®ăŚć‰‹ăŁĺŹ–ă‚Šć—©ă„ă‚ă†ăŞć°—ăŚă™ă‚‹ďĽŽ

\paragraph{ç„ˇé™ă®ă¬ă™ă«}
\TeX ă§ăŻďĽŚglueă®äĽ¸ç¸®é‡Źă«\texttt{fil}, \texttt{fill}, \texttt{filll}
ă¨ă„ă†3ă¤ă®ç„ˇé™ĺ¤§ă®ă¬ă™ă«ăŚĺ­ĺś¨ă—ďĽŚ\texttt{l}ăŚĺ¤šă„ă»ă©ç„ˇé™ĺ¤§ă®ă‚ŞăĽă€ăĽăŚé«ăŹăŞăŁă¦ă„ăźďĽŽ
\OMEGA ă§ăŻďĽŚă€Śinter-letter spacingă®ăźă‚ă«ă€Ť\texttt{fi}\index{fi=\texttt{fi}}ă¨ă„ă†ďĽŚ
ćś‰é™ă¨\texttt{fil}ă®ä¸­é–“ă«ă‚ăźă‚‹ç„ˇé™ĺ¤§ă®ă¬ă™ă«ăŚä»ă‘ĺŠ&nbsp;ăă‚‰ă‚ŚăźďĽŽăťă“ă§ďĽŚă“ă®ç„ˇé™ĺ¤§ă¬ă™ă«
\texttt{fi}ă‚‚ćŽˇç”¨ă™ă‚‹ă“ă¨ă«ă—ăźďĽŽ

\medskip

ĺ®źčŁ…ć–ąćł•ăŻďĽŚĺ¤§ăľă‹ă«ăŻ\OMEGA ă§\texttt{fi}ă®ĺ®źčŁ…ă‚’čˇŚăŁă¦ă„ă‚‹change file\
\texttt{omfi.ch}ă®é€šă‚Šă§ă‚ă‚‹ă®ă&nbsp;ăŚďĽŚă“ă‚Śă«\pTeX ă‚„\eTeX ă«äĽ´ă†ĺ°‘ă€…ă®äż®ć­Łă‚’čˇŚăŁă¦ă„ă‚‹ďĽŽ
\begin{itemize}
  \item ă—ăŞăźă†ă‚Łă–|\pagefistretch|\indcs{pagefistretch},
      |\hfi|\indcs{hfi}, |\vfi|\indcs{vfi}ă‚’ć–°ăźă«ĺ®šçľ©ă—ă¦ă„ă‚‹
    \footnote{%
      |\hfi|, |\vfi|ă«ă¤ă„ă¦ăŻ\cite{omegaman}ă«č¨čż°ăŚă‚ă‚‹ăŚďĽŚ
      \TeX~Liveă«ĺŹŽéŚ˛ă•ă‚Śă¦ă„ă‚‹$\aleph$ďĽ\OMEGA ăŻ\TeX~Liveă«ĺŹŽéŚ˛ă•ă‚Śă¦ă„ăŞă„ďĽ‰ă§ăŻ
      ĺ®źčŁ…ă•ă‚Śă¦ă„ăŞă„ďĽŽ|\pagefistretch|ă‚’ĺ®źčŁ…ă—ăźă®ăŻĺŚ—ĺ·ťă®ĺ®Śĺ…¨ăŞĺ‹é•ă„ă§ă‚ă‚‹ďĽŽ
    }ďĽŽ
  \item |\gluestretchorder|\indcs{gluestretchorder},
      |\glueshrinkorder|\indcs{glueshrinkorder}ă®ĺ‹•ä˝śă‚’\eTeX ă®ăťă‚Śă¨ĺă‚Źă›ăźďĽŽ
      ĺ…·ä˝“çš„ă«ăŻďĽŚă‚ă‚‹glue~|\someglue|ă®äĽ¸ăłé‡Źă‚’&lt;stretch&gt;ă¨ăŠăŹă¨ăŤďĽŚ
\[
 \hbox{|\gluestretchorder\someglue|}=
\begin{cases}
0&amp;&lt;stretch&gt;\text{ăŚé«ă€…\texttt{fi}ă¬ă™ă«ă®é‡Ź}\\
1&amp;&lt;stretch&gt;\text{ăŚăˇă‚‡ă†ă©\texttt{fil}ă¬ă™ă«ă®ç„ˇé™é‡Ź}\\
2&amp;&lt;stretch&gt;\text{ăŚăˇă‚‡ă†ă©\texttt{fill}ă¬ă™ă«ă®ç„ˇé™é‡Ź}\\
3&amp;&lt;stretch&gt;\text{ăŚăˇă‚‡ă†ă©\texttt{filll}ă¬ă™ă«ă®ç„ˇé™é‡Ź}
\end{cases}
\]
      ă¨ăŞăŁă¦ă„ă‚‹ďĽŽĺ†…é¨ă§ăŻ\texttt{fi}ă¬ă™ă«ăŚ1ďĽŚ\texttt{fil}ă¬ă™ă«ăŚ2ďĽŚâ€¦â€¦ă¨ă—ă¦
      ĺ‡¦ç†ă—ă¦ă„ă‚‹\footnote{%
      \hologo{LuaTeX}ă«ă‚‚ç„ˇé™ă®ă¬ă™ă«\texttt{fi}ăŚĺ­ĺś¨ă™ă‚‹ăŚďĽŚ
      |\gluestretchorder|, |\glueshrinkorder|ăŻ\eTeX ă‚„\epTeX ă¨ç•°ăŞă‚ŠďĽŚ
      ćś‰é™/\texttt{fi}/\texttt{fil}/\texttt{fill}/\texttt{filll}ă§0/1/2/3/4ă§ă‚ă‚‹ďĽŽ
      ăľăźďĽŚr52360ă§\eTeX äş’ćŹ›ă‚’ć„Źĺ›łă—ăź
      |\eTeXgluestretchorder|, |\eTeXglueshrinkorder|ă‚‚čż˝ĺŠ&nbsp;ă•ă‚Śă¦ăŠă‚ŠďĽŚ
      ăťăˇă‚‰ăŻćś‰é™/\texttt{fil}/\texttt{fill}/\texttt{filll}ă§0/1/2/3ă¨ă—ďĽŚ
      \texttt{fi}ăŻ$-1$ă§ă‚ă‚‹ďĽŽ
      }ďĽŽ
\end{itemize}

\paragraph{ă¬ă‚¸ă‚ąă‚żă«ă¤ă„ă¦}
\OMEGA ă§ăŻďĽĺ‰Ťă«ă‚‚ć›¸ă„ăźăŚďĽ‰ă‡ăĽă‚żć§‹é€&nbsp;ă®ĺ¤‰ć›´ăŚčˇŚă‚Źă‚ŚďĽŚăťă‚Śă«ă‚ăŁă¦ă¬ă‚¸ă‚ąă‚żăŚ
ĺ„ç¨®éˇžă‚ăźă‚Š0ç•Şă‹ă‚‰65535ç•Şăľă§ă®65536ĺ€‹ă‚’ä˝żăă‚‹ă‚ă†ă«ăŞăŁă¦ă„ă‚‹ďĽŽ

ä¸€ć–ąďĽŚ\eTeX ă§ăŻďĽŚ256ç•Şä»Ąé™Ťă®ă¬ă‚¸ă‚ąă‚żă‚’ĺ°‚ç”¨ă®sparse treeă«ć&nbsp;Ľç´Ťă™ă‚‹ă“ă¨ă«ă‚ă‚ŠďĽŚ
32767ç•Şăľă§ă®ă¬ă‚¸ă‚ąă‚żă®ä˝żç”¨ă‚’ĺŹŻč˝ă«ă—ă¦ă„ăźďĽŽă“ă®ă„ăŞăĽć§‹é€&nbsp;ă‚’ĺ†ćžă—ă¦ăżă‚‹
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ăťă“ă§ďĽŚ\epTeX ă§ăŻ\eTeX ćµă®ć–ąćł•ă‚’ç”¨ă„ăŞăŚă‚‰ă‚‚ďĽŚ
ă„ăŞăĽă®éšŽĺ±¤ă‚’1ă¤ĺ˘—ă‚„ă—ă¦ďĽŚă¬ă‚¸ă‚ąă‚ż(count, dimen, skip, muskip, box, token)ă‚’
\OMEGA ă¨ĺŚăă‚ă†ă«0ç•Şă‹ă‚‰65535ç•Şăľă§ă®65536ĺ€‹ă‚’ä˝żăă‚‹ă‚ă†ă«ă—ăźďĽŽ
ĺŚć§ă«ďĽŚăžăĽă‚Ż(mark)ă®ă‚Żă©ă‚ąć•°ă‚‚32768ĺ€‹ă‹ă‚‰65536ĺ€‹ăľă§ĺ˘—ă‚„ă—ă¦ă„ă‚‹ďĽŽ

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  ĺŚăć©źč˝ăŚ\hologo{LuaTeX}ă¨\hologo{XeTeX}ă«ă‚‚ĺ­ĺś¨ă™ă‚‹ă®ă§ďĽŚ
  \epTeX~210701ă§ă“ă‚Śă‚’ă‚µăťăĽăă—ăźďĽŽ

  ç™şç«ŻăŻďĽŚ2021ĺą´2ćśă«Pandocă§ă€ŚăŹă‚¤ă‘ăĽăŞăłă‚Żă®ă‚żăĽă‚˛ăăă‚’čˇŚă®ä¸‹ç«Żă§ăŻăŞăŹ
  ä¸Šç«Żă«ă™ă‚‹ă€Ťă¨ă„ă†ç›®çš„ă§|\vadjust pre|ăŚä˝żă‚Źă‚Śăźă“ă¨ă§ă‚ă‚‹\cite{tjb115}ďĽŽ
\end{cslist}


\section{\epTeX ă®čż˝ĺŠ&nbsp;ă—ăŞăźă†ă‚Łă–}

\subsection{ăăĽă‚¸ă§ăłç•ŞĺŹ·}
\pTeX~p3.8.0ă«\.{ptexversion}ăŚĺ®źčŁ…ă•ă‚Śăźă®ă¨ĺŚć™‚ă«ďĽŚ\epTeX ă§ă‚‚ăăĽă‚¸ă§ăłç•ŞĺŹ·ă‚’
ĺŹ–ĺľ—ă™ă‚‹\.{epTeXversion}ă—ăŞăźă†ă‚Łă–ăŚ\epTeX~180121ă‹ă‚‰čż˝ĺŠ&nbsp;ă•ă‚ŚăźďĽŽ

\begin{cslist}
 \csitem[\.{epTeXversion} (read-only integer)]
  \epTeX ă®ăăĽă‚¸ă§ăłç•ŞĺŹ·ďĽäľ‹ăă°\the\epTeXversionďĽ‰ă‚’ĺ†…é¨ć•´ć•°ă§čż”ă™ďĽŽ\epTeX čµ·ĺ‹•ć™‚ă®ăăŠăĽă§ăŻ
  \eTeX, \pTeX ă®ăăĽă‚¸ă§ăłç•ŞĺŹ·ă‚‚čˇ¨ç¤şă•ă‚Śă‚‹ă®ă§ďĽŚăťă‚Śă‚’ĺ†ŤçŹľă—ă‚ă†ă¨ă™ă‚‹ă¨ä»Ąä¸‹ă®ă‚ă†ă«ăŞă‚‹ďĽŽ
\begin{verbatim}
This is e-pTeX, Version 3.14159265-%
p\number\ptexversion.\number\ptexminorversion\ptexrevision-%
\number\epTeXversion-\number\eTeXversion\eTeXrevision ...
\end{verbatim}
\end{cslist}


\subsection{\.{lastnodechar}ă—ăŞăźă†ă‚Łă–}
ćś¬ă—ăŞăźă†ă‚Łă–ăŻ
\TeX ă¦ăĽă‚¶ă®é›†ă„2014ă§ăŞă‚Żă‚¨ă‚ąăă‚’ĺŹ—ă‘ă¦
ĺ®źčŁ…ă•ă‚Śăź(\cite{pdfse})ă—ăŞăźă†ă‚Łă–ă§ďĽŚ\epTeX~141119ä»Ąé™Ťă®extended modeă§ĺ©ç”¨ĺŹŻč˝ă§ă‚ă‚‹ďĽŽ
č©łç´°ăŞčŚć™ŻčŞ¬ćŽă»ä»•ć§ăŻ\cite{lnc}ă«č­˛ă‚‹ďĽŽ

\pTeX ă§ăŻ
\begin{verbatim}
ă“ă‚ŚăŻďĽŚ\textmc{ă€Žă»ă’ĺ…šĺ®Łč¨€ă€Ź}ă®â€¦â€¦
\end{verbatim}
ă¨ă„ă†ĺ…ĄĺŠ›ă‹ă‚‰ăŻ
\begin{quote}
ă“ă‚ŚăŻďĽŚ\textmc{ă€Žă»ă’ĺ…šĺ®Łč¨€ă€Ź}ă®â€¦â€¦
\end{quote}
ă¨ă„ă†ĺ‡şĺŠ›ăŚĺľ—ă‚‰ă‚ŚďĽŚă‚łăłăžă¨äşŚé‡ŤéŤµć‹¬ĺĽ§ă®é–“ăŚĺ…¨č§’ç©şăŤă«ăŞăŁă¦ă—ăľă†ă“ă¨ăŚä»Ąĺ‰Ťă‹ă‚‰çźĄă‚‰ă‚Śă¦ă„ă‚‹ďĽŽ

ă“ă®çŹľč±ˇăŻďĽŚďĽĺ±•é–‹ă—ç¶šă‘ăźçµćžśďĽ‰ă€ŚďĽŚă€Ťă®ç›´ĺľŚă®ăăĽă‚ŻăłăŚă€Śă€Žă€Ťă§ăŻăŞă„ă“ă¨ă«ă‚ăŁă¦ďĽŚ
ă€ŚďĽŚă€Ťă®ĺľŚă®ĺŤŠč§’ç©şăŤă¨ďĽŚă€Śă€Žă€Ťă®ĺ‰Ťă®ĺŤŠč§’ç©şăŤăŚä¸ˇć–ą
ĺ…ĄăŁă¦ă—ăľă†ă¨ă„ă†\pTeX ă®ĺ’Ść–‡ĺ‡¦ç†ă®ä»•ć§
\footnote{%
  \TeX82ă®ć¬§ć–‡ă®ă‚«ăĽă‹ăłă‚°ă‚„ĺĺ­—ĺ‡¦ç†ă‚‚ĺŚăă‚ă†ăŞä»•ć§ă«ăŞăŁă¦ă„ă‚‹ďĽŽ
  äľ‹ăă°\texttt{W\.{relax}\ oWo}ă‹ă‚‰ăŻW\relax oWoă¨ă„ă†ĺ‡şĺŠ›ă«ăŞă‚ŠďĽŚ
  Wă¨oă®é–“ă®ă‚«ăĽă‹ăłă‚°ăŚ\.{relax}ă«ă‚ăŁă¦ćŚżĺ…Ąă•ă‚ŚăŞăŹăŞăŁăźă“ă¨ăŚă‚Źă‹ă‚‹ďĽŽ
}ă«ă‚ă‚‹ďĽŽ
min10ă•ă‚©ăłăăˇăăŞăă‚Żă§ă€Ś|ăˇă‚‡ăŁă¨|ă€Ťă‚’çµ„ă‚€ă¨ă€Śă‚‡ăŁă€Ťă®é–“ăŚč©°ăľă‚‹ă¨ă„ă†ä¸Ťĺ…·ĺăŻćś‰ĺŤă§ă‚ă‚‹ăŚďĽŚ
ă€Ś|ăˇă‚‡{}ăŁă¨|ă€Ťă¨ç©şă‚°ă«ăĽă—ă‚’ćŚźă‚€ă“ă¨ă§ĺ›žéżă•ă‚Śă‚‹ă®ă‚‚ďĽŚĺŚăç†ç”±ă§ă‚ă‚‹ďĽŽ

\medskip

\.{lastnodechar}ă—ăŞăźă†ă‚Łă–ăŻďĽŚ
ä¸Šă§čż°ăąăźă€Ść›¸ä˝“ĺ¤‰ć›´ĺ‘˝ä»¤ă‚’é–“ă«ćŚźă‚€ă¨ĺ’Ść–‡é–“ă‚°ă«ăĽăŚă€Žăľă¨ă‚‚ă«ă€ŹăŞă‚‰ăŞă„ă€Ťă¨ă„ă†çŠ¶ćłă‚’
ć”ąĺ–„ă™ă‚‹ĺŠ©ă‘ă«ăŞă‚‹ă“ă¨ă‚’ç›®ćŚ‡ă—ă¦ĺ®źčŁ…ă•ă‚ŚăźďĽŽ

\begin{cslist}
 \csitem[\.{lastnodechar} (read-only integer)]
  çŹľĺś¨ć§‹çŻ‰ä¸­ă®ăŞă‚ąăă®ă€Śćś€ĺľŚă®ăŽăĽă‰ă€ŤăŚć–‡ĺ­—ç”±ćťĄă§ă‚ă‚Śă°ďĽŚ
  ăťă®ă‚łăĽă‰ç•ŞĺŹ·ďĽĺ†…é¨ă‚łăĽă‰ďĽ‰ă‚’ĺ†…é¨ć•´ć•°ă¨ă—ă¦čż”ă™ďĽŽ
  ăŞă‚ąăăŚç©şă®ĺ&nbsp;´ĺďĽŚăľăź
  ă€Śćś€ĺľŚă®ăŽăĽă‰ă€ŤăŚć–‡ĺ­—ă‚’čˇ¨ă™ă‚‚ă®ă§ăŞă‹ăŁăźĺ&nbsp;´ĺăŻďĽŚ$-1$ăŚčż”ă‚‹ďĽŽ

  ä¸Šč¨ă€Śćś€ĺľŚă®ăŽăĽă‰ă€Ťă§ăŻďĽŚ\pTeX ă«ă‚ăŁă¦č‡Şĺ‹•ćŚżĺ…Ąă•ă‚Śă‚‹
  \begin{itemize}
    \item ăˇăăŞăă‚Żç”±ćťĄă®ç©şç™˝ďĽJFMă‚°ă«ăĽďĽŚă‚«ăĽăłďĽ‰
    \item čˇŚćś«ç¦ĺ‰‡ĺ‡¦ç†ă®ăźă‚ă«ćŚżĺ…Ąă•ă‚Śă‚‹ăšăŠă«ă†ă‚Ł
    \item ć¬§ć–‡ć–‡ĺ­—ă®ă™ăĽă‚ąă©ă‚¤ăłčŁść­Łç”¨ă®ăŽăĽă‰
  \end{itemize}
  ăŻç„ˇč¦–ă•ă‚Śă‚‹ďĽŽăľăźďĽŚçŹľĺś¨ă®ĺ®źčŁ…ă§ăŻă€Śćś€ĺľŚă®ăŽăĽă‰ă€ŤăŚć¬§ć–‡ć–‡ĺ­—ă®ăŞă‚¬ăăŁă§
  ă‚ăŁăźĺ&nbsp;´ĺăŻďĽŚăŞă‚¬ăăŁăťă‚Śč‡Şčş«ă®ă‚łăĽă‰ç•ŞĺŹ·ă§ăŻăŞăŹďĽŚ
  ćś€ĺľŚă®ć§‹ćč¦ç´&nbsp;ă®ć–‡ĺ­—ă®ă‚łăĽă‰ç•ŞĺŹ·ă‚’čż”ă™ă‚ă†ă«ă—ă¦ă„ă‚‹ďĽŽ
\end{cslist}

äľ‹ăă°ďĽŚ\.{lastnodechar}ă‚’ä˝żăŁă¦
\begin{verbatim}
ă“ă‚ŚăŻďĽŚ\the\lastnodechar\textmc{ă€Žă»ă’ĺ…šĺ®Łč¨€ă€Ź}â€¦â€¦
\end{verbatim}
ă¨ĺ…ĄĺŠ›ă™ă‚‹ă¨ďĽŚ
\begin{quote}
ă“ă‚ŚăŻďĽŚ\the\lastnodechar\textmc{ă€Žă»ă’ĺ…šĺ®Łč¨€ă€Ź}â€¦â€¦
\end{quote}
ă®ă‚ă†ă«ăŞă‚ŠďĽŚ\.{lastnodechar}ĺ®źčˇŚć™‚ă®ă€Śćś€ĺľŚă®ăŽăĽă‰ă€ŤďĽć–‡ĺ­—ă€ŚďĽŚă€Ťă‚’čˇ¨ă™ďĽ‰ă®ĺ†…é¨ă‚łăĽă‰
\footnote{%
  ĺ†…é¨ă‚łăĽă‰ăŚEUCă®ĺ&nbsp;´ĺăŻ$\texttt{"A1A4} = 41380$ďĽŚSJISă®ĺ&nbsp;´ĺăŻ
  $\texttt{"8143} = 33091$ă¨ăŞă‚‹ďĽŽ
}ăŚĺľ—ă‚‰ă‚Śă‚‹ďĽŽă“ă‚Śă«ă‚ăŁă¦ďĽŚ\.{textmc}ç­‰ă®ĺ‘˝ä»¤ă®ç›´ĺ‰Ťă®ć–‡ĺ­—ă‚’çźĄă‚‹ă“ă¨ăŚă§ăŤă‚‹ă®ă§ďĽŚ
ă‚ă¨ăŻ\TeX ăžă‚Żă­ĺ´ă§ăŞă‚“ă¨ă‹ă§ăŤă‚‹ă&nbsp;ă‚Ťă†ďĽŚă¨ă„ă†ç›®č«–č¦‹ă§ă‚ă‚‹ďĽŽ

ăľăźďĽŚä¸Šč¨ă®čŞ¬ćŽă«ă‚ă‚‹ă¨ăŠă‚ŠďĽŚ
\begin{verbatim}
abcfi\the\lastnodechar, abc\char"1C \the\lastnodechar
\end{verbatim}
ăŻ
\begin{quote}
abcfi\the\lastnodechar, abc\char"1C \the\lastnodechar
\end{quote}
ă¨ăŞă‚ŠďĽŚč¦‹ăźç›®ă§ăŻĺŚăă€Śfiă€ŤăŚ\.{lastnodechar}ĺ®źčˇŚć™‚ă®ă€Śćś€ĺľŚă®ăŽăĽă‰ă€Ťă§
ă‚ă‚‹ă‹ă®ă‚ă†ă«č¦‹ăă¦ă‚‚ďĽŚăťă‚ŚăŚĺĺ­—ă®ĺ&nbsp;´ĺďĽĺ·¦ĺ´ďĽ‰ă§ăŻ\.{lastnodechar}ă®
ĺ®źčˇŚçµćžśăŻćś€ĺľŚă®ć§‹ćč¦ç´&nbsp;ă€Śiă€Ťă®ă‚łăĽă‰ç•ŞĺŹ·105ă¨ăŞă‚‹ďĽŽ

\begin{dangerous}
  ă€Ś|ă“ă‚ŚăŻďĽŚ|ă€Ťă¨ă‚˝ăĽă‚ąä¸­ă«ĺ…ĄĺŠ›ă—ăźă¨ăŤă®
  ăŽăĽă‰ă®çŠ¶ć…‹ă‚’\.{showlists}ă§čŞżăąă¦ăżă‚‹ă¨ć¬ˇă®ă‚ă†ă«ăŞăŁă¦ăŠă‚ŠďĽŚ
  ćś¬ĺ˝“ă«ä¸€ç•Şćś€ĺľŚă®ăŽăĽă‰ăŻJFMă«ă‚ăŁă¦ćŚżĺ…Ąă•ă‚Śă‚‹äşŚĺ†ç©şăŤă®ç©şç™˝
  ďĽă€ŚďĽŚă€Ťă¨é€šĺ¸¸ă®ĺ’Ść–‡ć–‡ĺ­—ă®é–“ă«ĺ…Ąă‚‹ăŻăšă®ă‚‚ă®ďĽ‰ă§ă‚ă‚‹ă“ă¨ăŚă‚Źă‹ă‚‹ďĽŽ
\begin{verbatim}
### yoko direction, horizontal mode entered at line 465
\hbox(0.0+0.0)x9.24683
\JY1/hmc/m/it/10 ă“
\JY1/hmc/m/it/10 ă‚Ś
\JY1/hmc/m/it/10 ăŻ
\penalty 10000(for kinsoku)
\JY1/hmc/m/it/10 ďĽŚ
\glue(refer from jfm) 4.62341 minus 4.62341
\end{verbatim}
  ă—ă‹ă—ďĽŚć•°ć®µč˝ä¸Šă®čŞ¬ćŽă®é€šă‚ŠďĽŚ\.{lastnodechar}ăŻ\pTeX ă®ĺ’Ść–‡ĺ‡¦ç†ă«ă‚ăŁă¦
  č‡Şĺ‹•çš„ă«ćŚżĺ…Ąă•ă‚Śăźă“ă‚Śă‚‰JFMç”±ćťĄă®ç©şç™˝ă‚’ç„ˇč¦–ă™ă‚‹ďĽŽ
\end{dangerous}

ă€Śćś€ĺľŚă®ăŽăĽă‰ă€Ťă‚’č¦‹ă¦ă„ă‚‹ă®ă§ďĽŚ
\begin{verbatim}
ă“ă‚ŚăŻďĽŚ\relax\sffamily{}\the\lastnodechar\textmc{ă€Žă»ă’ĺ…šĺ®Łč¨€ă€Ź}â€¦â€¦
\end{verbatim}
ă®ă‚ă†ă«ăŽăĽă‰ă‚’ä˝śă‚‰ăŞă„\.{relax}, |{}|, \.{sffamily}ăŞă©ăŚé€”ä¸­ă«ă‚ăŁă¦ă‚‚ďĽŚ
ăťă‚Śă‚‰ăŻĺŤç´”ă«ç„ˇč¦–ă•ă‚Śă¦
\begin{quote}
ă“ă‚ŚăŻďĽŚ\relax\sffamily{}\the\lastnodechar\textmc{ă€Žă»ă’ĺ…šĺ®Łč¨€ă€Ź}â€¦â€¦
\end{quote}
ă¨ă€ŚďĽŚă€Ťă®ĺ†…é¨ă‚łăĽă‰ăŚĺŹ–ĺľ—ă•ă‚Śă‚‹ďĽŽ


\subsection{\.{lastnodefont}ă—ăŞăźă†ă‚Łă–}
\.{lastnodechar}ă‚’čŁśĺ®Śă™ă‚‹ă‚‚ă®ă¨ă—ă¦ďĽŚ\epTeX~220214 (\TeX~Live 2022)ă§ĺ®źčŁ…ă•ă‚ŚăźďĽŽ
\begin{cslist}
 \csitem[\.{lastnodefont} (read-only font identifier)]
  çŹľĺś¨ć§‹çŻ‰ä¸­ă®ăŞă‚ąăă®ă€Śćś€ĺľŚă®ăŽăĽă‰ă€ŤăŚć–‡ĺ­—ç”±ćťĄă§ă‚ă‚Śă°ďĽŚ
  ăťă®ă•ă‚©ăłăďĽĺ†…é¨č­ĺĄĺ­ďĽ‰ă‚’čż”ă™ďĽŽ
  ăŞă‚ąăăŚç©şă®ĺ&nbsp;´ĺďĽŚăľăź
  ă€Śćś€ĺľŚă®ăŽăĽă‰ă€ŤăŚć–‡ĺ­—ă‚’čˇ¨ă™ă‚‚ă®ă§ăŞă‹ăŁăźĺ&nbsp;´ĺăŻďĽŚ|\nullfont|ăŚčż”ă‚‹ďĽŽ

  ă“ă“ă§ă‚‚ă€Śćś€ĺľŚă®ăŽăĽă‰ă€ŤăŻ\.{lastnodechar}ă¨ĺŚć§ă§
  \begin{itemize}
    \item ăˇăăŞăă‚Żç”±ćťĄă®ç©şç™˝ďĽJFMă‚°ă«ăĽďĽŚă‚«ăĽăłďĽ‰
    \item čˇŚćś«ç¦ĺ‰‡ĺ‡¦ç†ă®ăźă‚ă«ćŚżĺ…Ąă•ă‚Śă‚‹ăšăŠă«ă†ă‚Ł
    \item ć¬§ć–‡ć–‡ĺ­—ă®ă™ăĽă‚ąă©ă‚¤ăłčŁść­Łç”¨ă®ăŽăĽă‰
  \end{itemize}
  ăŻç„ˇč¦–ă•ă‚Śă‚‹ďĽŽ
\end{cslist}

\TeX~Live 2020ă®\pTeX~(p3.8.3)ă§čż˝ĺŠ&nbsp;ă•ă‚Śăź\.{ifjfont}, \.{iftfont}ă¨
çµ„ăżĺă‚Źă›ă‚Śă°ďĽŚă€Śćś€ĺľŚă®ăŽăĽă‰ă€ŤăŚĺ’Ść–‡ć–‡ĺ­—ă‹ă©ă†ă‹ă‚’ĺ¤ĺĄă§ăŤă‚‹
\footnote{\epTeX ă§ăŻă€Ś\.{lastnodechar}ăŚ256ä»Ąä¸Šă‹ă©ă†ă‹ă€Ťă§ă‚‚ĺ¤ĺĄă§ăŤă‚‹ăŚďĽŚ
\eupTeX ă§ăŻć–‡ĺ­—ă‚łăĽă‰0--255ă®ĺ’Ść–‡ć–‡ĺ­—ăŽăĽă‰ă‚‚ĺ­ĺś¨ă—ă†ă‚‹ă“ă¨ă«ćł¨ć„ŹďĽŽ}ďĽŽ


\subsection{\.{lastnodesubtype}ă—ăŞăźă†ă‚Łă–}
\cite{tjb28,plt63}ăŞă©ă®č­°č«–ă§ďĽŚă€Śćś€ĺľŚă®ă‚°ă«ăĽăŚJFMă‚°ă«ăĽă®ĺ&nbsp;´ĺă®ăż
\.{unskip}ă™ă‚‹ă€Ťĺ‡¦ç†ă®ĺż…č¦ć€§ăŚĺ”±ăă‚‰ă‚Śă¦ăŤăźďĽŽ
\eTeX ă«ăŻă‚‚ă¨ă‚‚ă¨ćś€ĺľŚă®ăŽăĽă‰ă®ç¨®ĺĄă‚’čż”ă™\.{lastnodetype}ă—ăŞăźă†ă‚Łă–ăŚ
ă‚ăŁăźăŚďĽŚă“ă‚Śă§ăŻćś€ĺľŚă®ăŽăĽă‰ăŚă‚°ă«ăĽă§ă‚ă‚‹ă‹ă—ă‹ă‚Źă‹ă‚‰ăŞă„ďĽŽ
ăťă®ăźă‚ďĽŚ\epTeX~180226ă§\.{lastnodetype}ă‚’čŁśĺ®Śă™ă‚‹ă‚‚ă®ă¨ă—ă¦ďĽŚ
\.{lastnodesubtype}ă—ăŞăźă†ă‚Łă–ă‚’čż˝ĺŠ&nbsp;ă—ăźďĽŽ

\begin{cslist}
 \csitem[\.{lastnodesubtype} (read-only integer)]
  çŹľĺś¨ć§‹çŻ‰ä¸­ă®ăŞă‚ąăă®ćś€ĺľŚă®ăŽăĽă‰ă®subtypeĺ€¤ă‚’ĺ†…é¨ć•´ć•°ă¨ă—ă¦čż”ă™ďĽŽ
  ă“ă“ă§ă®ćś€ĺľŚă®ăŽăĽă‰ăŻ\.{lastnodetype}ă¨ĺŚć§ă§ă‚ă‚‹ďĽŽ
  ă™ăŞă‚ŹăˇďĽŚ\.{lastnodechar}ă‚„\.{lastnodefont}ă¨ăŻ
  \begin{itemize}
    \item ăˇăăŞăă‚Żç”±ćťĄă®ç©şç™˝ďĽJFMă‚°ă«ăĽďĽŚă‚«ăĽăłďĽ‰
    \item čˇŚćś«ç¦ĺ‰‡ĺ‡¦ç†ă®ăźă‚ă«ćŚżĺ…Ąă•ă‚Śă‚‹ăšăŠă«ă†ă‚Ł
  \end{itemize}
  ă‚‚ĺŻľč±ˇă¨ă™ă‚‹ă¨ă„ă†ç‚ąă§ç•°ăŞă‚‹ďĽŽ
  \begin{itemize}
    \item ćś€ĺľŚă®ăŽăĽă‰ăŚć–‡ĺ­—ăŽăĽă‰ă®ă¨ăŤăŻ0ăŚčż”ă‚‹ďĽŽ
    \item çŹľĺś¨ć§‹çŻ‰ä¸­ă®ăŞă‚ąăăŚç©şă®ă¨ăŤăŻ$-1$ăŚčż”ă‚‹ďĽŽ
    \item \epTeX~210701ä»Ąé™Ťă§ăŻďĽŚć•°ĺĽŹĺ†…ă®ăŽăĽă‰ă«ă¤ă„ă¦ăŻsubtypeĺ€¤
      ăťă®ăľăľă§ăŻă»ă¨ă‚“ă©ć„Źĺ‘łăŚăŞă„ă®ă§ďĽŚć¬ˇăšăĽă‚¸ă®čˇ¨ă®ĺ€¤ă‚’čż”ă™ďĽŽ
  \end{itemize}
\end{cslist}

ĺ®źéš›ă«ćś‰ç”¨ăŞă®ăŻďĽŚä»Ąä¸‹ă®ĺ&nbsp;´ĺă§ă‚ă‚Ťă†ďĽš
 \begin{description}
  \item[ćś€ĺľŚă®ăŽăĽă‰ăŚă‚°ă«ăĽ($\.{lastnodetype}=11$)ă®ă¨ăŤ]
\begin{multilist}{3}{\hfil\hskip1.5em#:&amp;\quad#\hfil}
\item 0&amp;ćŽç¤şçš„ăŞ\.{hskip}, \.{vskip}\cr
\item 1&amp;\.{lineskip}\cr
\item 2&amp;\.{baselineskip}\cr
\item 3&amp;\.{parskip}\cr
\item 4&amp;\.{abovedisplayskip}\cr
\item 5&amp;\.{belowdisplayskip}\cr
\item 6&amp;\.{abovedisplayshortskip}\cr
\item 7&amp;\.{belowdisplayshortskip}\cr
\item 8&amp;\.{leftskip}\cr
\item 9&amp;\.{rightskip}\cr
\item 10&amp;\.{topskip}\cr
\item 11&amp;\.{splittopskip}\cr
\item 12&amp;\.{tabskip}\cr
\item 13&amp;\.{spaceskip}\cr
\item 14&amp;\.{xspaceskip}\cr
\item 15&amp;\.{parfillskip}\cr
\item 16&amp;\.{kanjiskip}\cr
\item 17&amp;\.{xkanjiskip}\cr
\item 18&amp;\.{thinmuskip}\cr
\item 19&amp;\.{medmuskip}\cr
\item 20&amp;\.{thickmuskip}\cr
\item 21&amp;JFMç”±ćťĄă‚°ă«ăĽ\cr
\item 98&amp;\.{nonscript}\cr
\item 99&amp;\.{mskip}\cr
\item 100&amp;\.{leaders}\cr
\item 101&amp;\.{cleaders}\cr
\item 102&amp;\.{xleaders}\cr
\end{multilist}
  \item[ćś€ĺľŚă®ăŽăĽă‰ăŚă‚«ăĽăł($\.{lastnodetype}=12$)ă®ă¨ăŤ]
  \leavevmode
\begin{multilist}{3}{\hfil\hskip1.5zw#:&amp;\quad#\qquad\hfil}
\item 0&amp;ă‚«ăĽă‹ăłă‚°\cr
\item 1&amp;ćŽç¤şçš„ăŞ\.{kern}\cr
\item 2&amp;ă‚˘ă‚Żă‚»ăłăç”±ćťĄ\cr
\item 3&amp;ă‚¤ă‚żăŞăă‚ŻčŁść­Ł\.{/}\cr
\item 99&amp;\.{mkern}\cr
\end{multilist}
  \item[ćś€ĺľŚă®ăŽăĽă‰ăŚăšăŠă«ă†ă‚Ł($\.{lastnodetype}=13$)ă®ă¨ăŤ]
  \leavevmode
\begin{multilist}{2}{\hfil\hskip1.5zw#:&amp;\quad#\qquad\hfil}
\item 0&amp;ćŽç¤şçš„ăŞ\.{penalty}\cr
\item 1&amp;\.{jcharwidowpenalty}\cr
\item 2&amp;ç¦ĺ‰‡ĺ‡¦ç†ç”±ćťĄ\cr
\end{multilist}
 \end{description}

ă—ă‹ă—ďĽŚćś¬ă—ăŞăźă†ă‚Łă–ăŻ
\epTeX ĺ†…é¨ă§ä˝żç”¨ă—ă¦ă„ă‚‹subtypeă®ĺ€¤ă‚’ăťă®ăľăľčż”ă™ă&nbsp;ă‘ă§ă‚ă‚‹ă®ă§ďĽŚ
ĺ…·ä˝“çš„ăŞć•°ĺ€¤ăŻĺ°†ćťĄĺ¤‰ă‚Źă‚‹ćă‚ŚăŚă‚ă‚‹ďĽŽăťă®ăźă‚ďĽŚ
\begin{verbatim}
\ifnum\jis"2121="3000 %% upTeX check
  \jfont\tenmin=upjisr-h at 9.62216pt
\else
  \jfont\tenmin=min10
\fi
\tenmin\char\jis"214B\null\setbox0\lastbox%"
\global\chardef\pltx@gluetype\lastnodetype
\global\chardef\pltx@jfmgluesubtype\lastnodesubtype
\end{verbatim}
ă®ă‚ă†ă«\TeX ă‚˝ăĽă‚ąĺ†…ă‹ă‚‰ĺŹ–ĺľ—ă»äżťĺ­ă—ă¦ăŠăŹă“ă¨ăŚćś›ăľă—ă„ďĽŽ

\medskip
ăŞăŠ\pLaTeX~2018-04-01ä»Ąé™Ťă§ăŻďĽŚä¸Šč¨ă®ă‚łăĽă‰ă‚’ĺ©ç”¨ă—ă¦
ă€Śćś€ĺľŚă®ă‚°ă«ăĽăŚJFMă‚°ă«ăĽă®ă¨ăŤă&nbsp;ă‘ć¶ă™ă€Ťĺ‘˝ä»¤|\removejfmglue|ă‚’
\begin{verbatim}
\protected\def\removejfmglue{%
  \ifnum\lastnodetype=\pltx@gluetype\relax
    \ifnum\lastnodesubtype=\pltx@jfmgluesubtype\relax
      \unskip
    \fi\fi}
\end{verbatim}
ă¨ă—ă¦ĺ®šçľ©ă—ă¦ă„ă‚‹ďĽŽ

\paragraph{\epTeX~210701ä»Ąé™Ťă®ćł¨ć„Ź}
ä¸Šă§ă‚‚čż°ăąăźă‚ă†ă«ďĽŚć•°ĺĽŹĺ†…ă®ăŽăĽă‰ă«ă¤ă„ă¦ăŻsubtypeĺ€¤ăŻă»ă¨ă‚“ă©ć„Źĺ‘łă‚’ćŚăźăŞă„ă®ă§ďĽŚ
ă“ă‚Śă‚‰ă«ĺŻľă™ă‚‹\.{lastnodesubtype}ă§ăŻsubtypeĺ€¤ă§ăŞăŹä»Ąä¸‹ă®ĺ€¤ă‚’čż”ă™ă‚ă†ă«ă—ăźďĽš
\begin{description}
  \item[ćś€ĺľŚă®ăŽăĽă‰ăŚć•°ĺĽŹĺ†…ă®ăŽăĽă‰($\.{lastnodetype}=15$)]
  \begin{multilist}{3}{\hfil\hskip1.5em#:&amp;\quad#\hfil}
    \item 0&amp;ćŽç¤şçš„ăŞă‚ąă‚żă‚¤ă«ćŚ‡ĺ®š\footnotemark\cr
    \item 1&amp;\.{mathchoice}\cr
    \item 2&amp;\.{mathord}\cr
    \item 3&amp;\.{mathop}${}+{}$\.{displaylimits}\cr
    \item 4&amp;\.{mathop}${}+{}$\.{limits}\cr
    \item 5&amp;\.{mathop}${}+{}$\.{nolimits}\cr
    \item 6&amp;\.{mathbin}\cr
    \item 7&amp;\.{mathrel}\cr
    \item 8&amp;\.{mathopen}\cr
    \item 9&amp;\.{mathclose}\cr
    \item 10&amp;\.{mathpunct}\cr
    \item 11&amp;\.{mathinner}\cr
    \item 12&amp;\.{radical}\cr
    %\item 13&amp;ĺ†ć•°ďĽ\.{over}ăŞă©ďĽ‰\cr
    \item 14&amp;\.{underline}\cr
    \item 15&amp;\.{overline}\cr
    \item 16&amp;\.{mathaccent}\cr
    \item 17&amp;\.{vcenter}\cr
    \item 18&amp;\.{left}\cr
    \item 19&amp;\.{middle}\cr
  \end{multilist}
  \footnotetext{\.{displaystyle}, \.{textstyle}, \.{scriptstyle}, \.{scriptscriptstyle}.}
  ăŞăŠďĽŚ\verb+\left...[\middle]...\right+ă®ç›´ĺľŚă§\.{lastnodesubtype}ă‚’ä˝żç”¨ă—ă¦ă‚‚ďĽŚ
  \verb+\left...[\middle]...\right+ĺ…¨ä˝“ăŚä¸€ă¤ă®ĺ†…é¨ć•°ĺĽŹ(\.{mathinner})ă¨ăŞă‚‹ă®ă§ďĽŚ
  \.{right}ă«ă€ŚĺŻľĺżśă™ă‚‹ă€Ť\.{lastnodesubtype}ă®ĺ€¤ăŻĺŹ–ĺľ—ă§ăŤăŞă„ďĽŽ
  \.{over}ă—ăŞăźă†ă‚Łă–ăŞă©ă«ă‚ă‚‹ĺ†ć•°ă«ă¤ă„ă¦ă‚‚éˇžäĽĽă®äş‹ć…ăŚă‚ă‚‹ďĽŽ
\end{description}


\subsection{\.{epTeXinputencoding}ă—ăŞăźă†ă‚Łă–}
çŹľĺś¨čŞ­ăżčľĽă‚“ă§ă„ă‚‹ă•ă‚ˇă‚¤ă«ă®ć–‡ĺ­—ă‚łăĽă‰ă‚’ĺ‡ă‚Šć›żăă‚‹ă—ăŞăźă†ă‚Łă–ă§ă‚ă‚ŠďĽŚ
2016/02/01ă«éżé¨ç´€čˇŚă•ă‚“ă«ă‚ăŁă¦ĺ®źčŁ…ă•ă‚ŚăźďĽŽč©łç´°ăŻĺ®źčŁ…č€…ă®č§ŁčŞ¬č¨äş‹
\cite{eptexinputenc}ă‚’ĺŹ‚ç…§ă—ă¦ă»ă—ă„ăŚďĽŚăŠăŠăľă‹ă«čż°ăąă‚‹ă¨ä»Ąä¸‹ă®ă‚ă†ă«ăŞă‚‹ă&nbsp;ă‚Ťă†ďĽŽ

\begin{cslist}
 \csitem[\.{epTeXinputencoding} &lt;encoding&gt;]
  çŹľĺś¨čŞ­ăżčľĽă‚“ă§ă„ă‚‹ă•ă‚ˇă‚¤ă«ă®ć–‡ĺ­—ă‚łăĽă‰ă‚’&lt;encoding&gt;ă«ĺ¤‰ć›´ă™ă‚‹ďĽŽ
  ĺ®źéš›ă«ĺ¤‰ć›´ă•ă‚Śă‚‹ă®ăŻă€Ść¬ˇă®čˇŚă€Ťă§ă‚ă‚ŠďĽŚăľăźçŹľĺś¨ă®ă•ă‚ˇă‚¤ă«ă‹ă‚‰ă•ă‚‰ă«\.{input}ç­‰ă§
  čŞ­ăľă‚Śăźă•ă‚ˇă‚¤ă«ă«ăŻĺŠąĺŠ›ă‚’ĺŹŠăĽă•ăŞă„ďĽŽ

  ĺĽ•ć•°&lt;encoding&gt;ă®čŞ­ăżĺŹ–ă‚ŠăŻďĽŚ
  ďĽ\LaTeX ă§ĺ®šçľ©ăŚä¸Šć›¸ăŤă•ă‚Śă¦ă„ăŞă„ďĽŚă—ăŞăźă†ă‚Łă–ă®ďĽ‰\.{input}ă®ĺĽ•ć•°ďĽă•ă‚ˇă‚¤ă«ĺŤďĽ‰ă‚’
  ĺŹ–ĺľ—ă™ă‚‹ă®ă¨ĺŚăă«ăĽăăłăŚç”¨ă„ă‚‰ă‚Śă‚‹ďĽŽ
  ăťă®ăźă‚ďĽŚ
\begin{verbatim}
\epTeXinputencoding sjis
\end{verbatim}
  ă®ă‚ă†ă«ďĽŚ&lt;encoding&gt;ăŻ|{}|ă§ĺ›˛ăľăŞă„ă“ă¨\footnote{\TeX~Live 2020ä»Ąé™ŤďĽŚ
  \.{input}ă—ăŞăźă†ă‚Łă–ă§ă–ă¬ăĽă‚ąă§ĺ›˛ăľă‚Śăźă•ă‚ˇă‚¤ă«ĺŤćŚ‡ĺ®šăŚĺŹŻč˝ă«
  ăŞăŁăź(r53729)ă“ă¨ă«ä»éšŹă—ă¦ďĽŚ\.{epTeXinputencoding}ă§ă‚‚ă–ă¬ăĽă‚ąă§
  ĺ›˛ă‚“ă&nbsp;&lt;encoding&gt;ă®ćŚ‡ĺ®šăŚĺŹŻč˝ă¨ăŞăŁăźďĽŽ}ďĽŽ
  &lt;encoding&gt;ă®ćś«ĺ°ľăŻďĽŚç©şç™˝ăăĽă‚Żăłă‚„ĺ±•é–‹ä¸Ťč˝ăăĽă‚Żăłă«ă‚ăŁă¦ĺŚşĺ‡ă‚‰ă‚Śă‚‹ďĽŽ
  % scan_file_name ă§&lt;encoding&gt; ă‚’ĺŹ–ĺľ—ă—ă¦ă„ă‚‹ă®ă§ďĽŚ
  % \epTeXinputencoding "euc" \epTeXinputencoding ""e""u""c"" ă‚‚ OK.

  &lt;encoding&gt;ă®ĺ€¤ăŻďĽŚĺźşćś¬çš„ă«ăŻ\pTeX ă®\texttt{-kanji}ă‚Şă—ă‚·ă§ăłă§ćŚ‡ĺ®šă§ăŤă‚‹ĺ€¤
  (\texttt{euc}, \texttt{sjis}, \texttt{jis}, \texttt{utf8})ă§ă‚ă‚‹ďĽŽ
  ĺ¤§ć–‡ĺ­—ĺ°Źć–‡ĺ­—ăŻč€ć…®ă—ăŞă„ďĽ\TeX ă®\.{uccode}, \.{lccode}ăŻĺŹ‚ç…§ă—ăŞă„ďĽ‰ďĽŽ
  % BINARY, ISO-2022-JP, EUC-JP, Shift_JIS, UTF-8 (, uptex) ă‚‚ OK
  % ptexenc ĺ´ă§ strcasecmp ă§ćŻ”čĽă—ă¦ă„ă‚‹ă®ă§ďĽŚĺ¤§ć–‡ĺ­—ă»ĺ°Źć–‡ĺ­—ă®ĺŚşĺĄăŻă—ăŞă„
  % ďĽ\uccode, \lccode ăŻĺŹ‚ç…§ă—ăŞă„ďĽ‰
\end{cslist}


\subsection{ç”¨ç´™ă®ĺŽźç‚ąä˝Ťç˝®ă®č¨­ĺ®šďĽŚ\.{readpapersizespecial}ă—ăŞăźă†ă‚Łă–}\label{readpss}
\pTeX çł»ĺ—ă§ăŻďĽŚç”¨ç´™ă‚µă‚¤ă‚şă®ćŚ‡ĺ®šă«ăŻäĽťçµ±çš„ă«papersize specialăŚĺ©ç”¨ă•ă‚Śă¦ăŤăźďĽŽ
ăťă‚Śă‚’č€ć…®ă—ă¦ďĽŚ\epTeX ă§ăŻă€Śç‰ąĺ®šć›¸ĺĽŹă®papersize specială‚’čŞ­ăżĺŹ–ăŁă¦
\.{pdflastxpos}, \.{pdflastypos}ďĽç¬¬\ref{pdfsavepos}çŻ€ă‚’ĺŹ‚ç…§ďĽ‰ă®ĺŽźç‚ąä˝Ťç˝®ă‚’č¨­ĺ®šă™ă‚‹ă€Ťă¨
ă„ă†ć©źč˝ă‚’ä»ĺŠ&nbsp;ă—ă¦ă„ă‚‹ďĽŽ
\begin{dangerous}
  dviwareă«ă‚ăŁă¦ć­Łç˘şăŞć›¸ĺĽŹăŻç•°ăŞă‚‹ă‚ă†ă&nbsp;ăŚďĽŚ\epTeX~180901ăŚč§Łé‡ă™ă‚‹papersize specialăŻ
  ä»Ąä¸‹ă®ć–‡ćł•ă«ć˛żăŁăźă‚‚ă®ă«ăŞăŁă¦ă„ă‚‹\footnote{%
  papersize specială§ćŚ‡ĺ®šă—ăźé•·ă•ăŻĺ¸¸ă«\texttt{true}ä»ăŤă§č§Łé‡ă™ă‚‹ă®ăŚć…Łçż’ă¨
  ăŞăŁă¦ă„ă‚‹ăŚďĽŚ\epTeX~180901ă‚ă‚Šĺ‰Ťă§ăŻ\texttt{true}ăŞă—ă®ĺŻ¸ćł•ă¨ă—ă¦č§Łé‡ă™ă‚‹ă¨ă„ă†
  ăă‚°ăŚĺ­ĺś¨ă—ăźďĽŽ}ďĽŽ
  ăŞăŠďĽŚ\Pkg{jsclasses}ă®|papersize|ă‚Şă—ă‚·ă§ăłă‚„2016ĺą´ä»Ąé™Ťă®
  \Pkg{graphics}/\Pkg{color}ă‘ăă‚±ăĽă‚¸ă®ă‰ă©ă‚¤ăă‚Şă—ă‚·ă§ăłăŚç™şčˇŚă™ă‚‹ć›¸ĺĽŹăŻďĽŚă“ă‚Śă«ĺč‡´ă™ă‚‹ďĽŽ
\def\&lt;#1&gt;{\langle\mbox{#1}\rangle}
\begin{align*}
  \&lt;special&gt; &amp;\longrightarrow \texttt{papersize=}\&lt;length&gt;\texttt{,}\&lt;length&gt;\\
  \&lt;length&gt;  &amp;\longrightarrow \&lt;decimal&gt;
    \&lt;optional~\texttt{true}&gt;\&lt;physical unit&gt;\\
  \&lt;decimal&gt; &amp;\longrightarrow \texttt{.} \mid \&lt;digit&gt;\&lt;decimal&gt; \mid
    \&lt;decimal&gt;\&lt;digit&gt;
\end{align*}
  č˛&nbsp;ă®ç¬¦ĺŹ·ă‚„ĺ°Źć•°ç‚ąă¨ă—ă¦ă®ă€Ś\texttt{,}ă€ŤďĽŚăťă—ă¦ä¸€ĺ‡ă®ç©şç™˝ă‚’č¨±ĺ®ąă—ăŞă„ă¨ă“ă‚Ťă«
  ćł¨ç›®ă—ă¦ă»ă—ă„ďĽŽăľăźďĽŚ\texttt{zw},~\texttt{zh},~\texttt{em},~\texttt{ex}ă¨ă„ă†
  çŹľĺś¨ă®ă•ă‚©ăłăă«äľťĺ­ă™ă‚‹ĺŤä˝Ťă‚‚ä˝żç”¨ä¸ŤĺŹŻč˝ă§ă‚ă‚‹ďĽŽ
\end{dangerous}

ăľăźďĽŚ\epTeX~180901ä»Ąé™Ťă§ăŻ\.{readpapersizespecial}ă—ăŞăźă†ă‚Łă–ă«ă‚ăŁă¦
ćś¬ć©źč˝ă®ćś‰ĺŠąă»ç„ˇĺŠąă‚’ĺ¶ĺľˇă§ăŤă‚‹ďĽŽ
ăťă‚Śă‚ă‚Šĺ‰Ťă®ăăĽă‚¸ă§ăłă§ăŻďĽŚćś¬ć©źč˝ăŻĺ¸¸ă«ćś‰ĺŠąă§ă‚ăŁăźďĽŽ

\begin{cslist}
 \csitem[\.{readpapersizespecial} (integer)]
  ă“ă®ĺ†…é¨ć•´ć•°ă®ĺ€¤ăŚć­Łă®ĺ&nbsp;´ĺďĽŚ\epTeX ăŻ
  papersize specialăŚdviä¸­ă«ć›¸ăŤĺ‡şă•ă‚Śă‚‹ć™‚ă«ăťă®ĺ†…ĺ®ąă‚’č§Łé‡ă—ďĽŚ
  č‡Şĺ‹•çš„ă«\.{pdfpagewidth}, \.{pdfpageheight}ă®ĺ€¤ă‚’č¨­ĺ®šă™ă‚‹ďĽŽ
  \epTeX~180901ă§čż˝ĺŠ&nbsp;ă•ă‚ŚďĽŚć—˘ĺ®šĺ€¤ăŻ1ă§ă‚ă‚‹ďĽŽ
\end{cslist}


\subsection{\.{current[x]spacingmode}ă—ăŞăźă†ă‚Łă–}
ă‚‚ă¨ă‚‚ă¨\pTeX çł»ĺ—ă§ăŻďĽŚ\.{kanjiskip},~\.{xkanjiskip}ă®ćŚżĺ…ĄăŚćś‰ĺŠąă«ăŞăŁă¦ă„ă‚‹ă‹
ç›´ćŽĄçš„ă«çźĄă‚‹ć–ąćł•ăŚ\.{showmode}ă—ăŞăźă†ă‚Łă–ă—ă‹ăŞă‹ăŁăźďĽŽ
ă“ă‚Śă§ăŻä˝żă„ĺ‹ťć‰‹ăŚć‚Şă„ă®ă§ďĽŚ
\.{currentspacingmode}, \.{currentxspacingmode}ă—ăŞăźă†ă‚Łă–ăŚ2019/10/28ă«
ĺ±±ä¸‹ă•ă‚“ă«ă‚ăŁă¦ĺ®źčŁ…ă•ă‚Śăź(\cite{tjb94})ďĽŽ

\begin{cslist}
 \csitem[\.{currentspacingmode} (read-only integer)]
  \pTeX ă®ă€Ść¨™ćş–ă§\.{kanjiskip}ă‚’ćŚżĺ…Ąă™ă‚‹ă€Ťć©źč˝ăŚćś‰ĺŠą(\.{autospacing})ăŞă‚‰ă°1ďĽŚ
  ç„ˇĺŠą(\.{noautospacing})ăŞă‚‰ă°0ă‚’čż”ă™ďĽŽ
 \csitem[\.{currentxspacingmode} (read-only integer)]
  \pTeX ă®ă€Ść¨™ćş–ă§\.{xkanjiskip}ă‚’ćŚżĺ…Ąă™ă‚‹ă€Ťć©źč˝ăŚćś‰ĺŠą(\.{autoxspacing})ăŞă‚‰ă°1ďĽŚ
  ç„ˇĺŠą(\.{noautoxspacing})ăŞă‚‰ă°0ă‚’čż”ă™ďĽŽ
\end{cslist}

ĺŚć§ă«ďĽŚ\eupTeX ă§ă‚‚\.{currentcjktoken}ă—ăŞăźă†ă‚Łă–ăŚ2019/10/28ă«ĺ®źčŁ…ă•ă‚ŚăźďĽŽ
% e-pTeX ă®čż˝ĺŠ&nbsp;ă—ăŞăźă†ă‚Łă–ă§ăŻăŞă„ăŚďĽŚă‰ă‚­ăĄăˇăłăĺŚ–ă®é˝ĺä¸Šă“ă“ă«ć›¸ă„ăźďĽŽ

\begin{cslist}
 \csitem[\.{currentcjktoken}ďĽread-only integerďĽŚ\emph{\eupTeX ă®ăż}ďĽ‰]
  \upTeX ă®ă€Śĺ’Ść–‡(CJK)ć–‡ĺ­—ă¨ć¬§ć–‡ć–‡ĺ­—ă‚’ĺŚşĺĄă™ă‚‹ă€Ťć©źč˝ă«ă¤ă„ă¦ďĽŚ
  \.{enablecjktoken}ă®çŠ¶ć…‹ăŞă‚‰ă°0ďĽŚ
  \.{disablecjktoken}ă®çŠ¶ć…‹ăŞă‚‰ă°1ďĽŚ
  \.{forcecjktoken}ă®çŠ¶ć…‹ăŞă‚‰ă°2ă‚’čż”ă™ďĽŽ
\end{cslist}


\section{Unicode \TeX ç”±ćťĄă®ć©źč˝}

\subsection{\.{Uchar}, \.{Ucharcat}ă—ăŞăźă†ă‚Łă–}
\hologo{XeTeX}, \hologo{LuaTeX}ă«ăŻďĽŚć–‡ĺ­—ă‚łăĽă‰&lt;character code&gt;ă‚’ĺĽ•ć•°ă«ă¨ă‚Š
\emph{ć–‡ĺ­—ăăĽă‚Żăł}ă«ĺ±•é–‹ă•ă‚Śă‚‹ă€Ś\.{Uchar} &lt;character code&gt;ă€Ťă¨ă„ă†ă—ăŞăźă†ă‚Łă–ăŚĺ­ĺś¨ă™ă‚‹
\footnote{\.{char}ăŻĺ±•é–‹ä¸Ťč˝ă—ăŞăźă†ă‚Łă–ă§ă‚ă‚‹ă“ă¨ă«ćł¨ć„ŹďĽŽ}ďĽŽăľăź\hologo{XeTeX}ă«ăŻďĽŚ
ć–‡ĺ­—ă‚łăĽă‰ă»ă‚«ă†ă‚´ăŞăĽă‚łăĽă‰ăŚăťă‚Śăžă‚Ś&lt;character code&gt;, &lt;category code&gt;ă§ă‚ă‚‹
ć–‡ĺ­—ăăĽă‚Żăłă‚’ä˝śă‚‹ă€Ś\.{Ucharcat}~&lt;character code&gt;~&lt;category code&gt;ă€Ťă¨ă„ă†ă—ăŞăźă†ă‚Łă–ă‚‚
ĺ­ĺś¨ă™ă‚‹\footnote{\hologo{LuaTeX}ă§ăŻLuaă«ă‚ă‚‹ä»Łć›żç‰©ăŚă‚ă‚‹ďĽŽ}ďĽŽ

% pTeX ă®ă€ŚćŠśă‘é“ă€Ťă®ĺ…·ä˝“çš„ăŞă‚łăĽă‰ďĽź
\pTeX ă§ă€Śĺ’Ść–‡ç‰\.{Uchar}ă€Ťă«ç›¸ĺ˝“ă™ă‚‹ă“ă¨ăŻ\TeX~Live 2019ä»Ąĺ‰Ťă®\pTeX ă§ăŻăžă‚Żă­ă§ĺ®źçŹľă™ă‚‹ă“ă¨ăŚĺŹŻč˝ă&nbsp;ăŚďĽŚ
ĺ°†ćťĄă®\pTeX ă®ć”ąäż®ă§ä¸ŤĺŹŻč˝ă«ăŞă‚‹ćă‚Ś(\cite{tjb81,tjb95})ăŚă‚ă‚‹ă®ă§ďĽŚ
\epTeX~191112ă§ĺ‰Ťć®µč˝ă§čż°ăąăź\.{Uchar}, \.{Ucharcat}ă—ăŞăźă†ă‚Łă–ă‚’čż˝ĺŠ&nbsp;ă™ă‚‹ă“ă¨ă«ă—ăźďĽŽ

\begin{cslist}
 \csitem[\.{Uchar} &lt;character code&gt;]
  ć–‡ĺ­—ă‚łăĽă‰ăŚ&lt;character code&gt;ă®ć–‡ĺ­—ăăĽă‚Żăłă«ĺ±•é–‹ă•ă‚Śă‚‹ďĽŽ
  ćŚ‡ĺ®šă—ăźĺ€¤ă¨ĺľ—ă‚‰ă‚Śă‚‹ć–‡ĺ­—ăăĽă‚Żăłă®ĺŻľĺżśčˇ¨ăŻć¬ˇă®é€šă‚ŠďĽŽ

  \begin{center}
	\small\medskip
	\begin{tabular}{lccc}
	  \toprule
	  &lt;character code&gt;&amp;ĺ’Ść–‡ă»ć¬§ć–‡&amp;\multicolumn{2}{c}{category code}\\\cmidrule(lr){3-4}
	  &amp;&amp;\epTeX&amp;\eupTeX\\
	  \midrule
	  0--31, 33--255&amp;ć¬§ć–‡ć–‡ĺ­—ăăĽă‚Żăł&amp;12&amp;12\\
	  32            &amp;ć¬§ć–‡ć–‡ĺ­—ăăĽă‚Żăł&amp;10&amp;10\\
	  256ä»Ąä¸Šă®&lt;kanji code&gt;&amp;ĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăł&amp;---ďĽé˝ĺş¦ĺŹ–ĺľ—ďĽ‰&amp;ăťă®ć™‚ă®\.{kcatcode}\footnotemark\\
	  \bottomrule
	\end{tabular}
  \end{center}
  \footnotetext{ă‚‚ă—\.{kcatcode}ă®ĺ€¤ăŚ15ă&nbsp;ăŁăźă¨ăŤăŻďĽŚĺľ—ă‚‰ă‚Śă‚‹ĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăłă®
	\.{kcatcode}ăŻ18ă¨ăŞă‚‹ďĽŽ}

 \csitem[\.{Ucharcat} &lt;character code&gt; &lt;category code&gt;]
  ć–‡ĺ­—ă‚łăĽă‰ă»ă‚«ă†ă‚´ăŞăĽă‚łăĽă‰ăŚăťă‚Śăžă‚Ś&lt;character code&gt;, &lt;category code&gt;ă®ć–‡ĺ­—ăăĽă‚Żăłă«ĺ±•é–‹ă•ă‚Śă‚‹ďĽŽ

  \epTeX ă§ăŻĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăłă«ăŻă‚«ă†ă‚´ăŞăĽă‚łăĽă‰ă®ć…ĺ&nbsp;±ăŻäżťĺ­ă•ă‚ŚăŞă„ăźă‚ďĽŚ
  \epTeX ă®\.{Ucharcat}ăŻć¬§ć–‡ć–‡ĺ­—ăăĽă‚Żăłă®ç”źćă—ă‹ă‚µăťăĽăă—ăŞă„ďĽŽ
  ĺ…·ä˝“çš„ă«ăŻďĽŚ
  ćŚ‡ĺ®šĺŹŻč˝ăŞĺ€¤ăŻ&lt;character code&gt;ăŚ0--255ďĽŚ&lt;category code&gt;ăŚ1--4, 6--8, 10--13ă®ăżă§ă‚ă‚‹ďĽŽ
\end{cslist}
\begin{dangerous}
  \eupTeX ă§ăŻďĽŚ\.{Ucharcat}ă§ĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăłă®ç”źćă‚‚ă‚µăťăĽăă—ă¦ă„ă‚‹ďĽŽ

  \medskip
  \begin{itemize}
	\item &lt;character code&gt;ăŚ0--127ă®ă¨ăŤăŻďĽŚć¬§ć–‡ć–‡ĺ­—ăăĽă‚Żăłă®ăżç”źćĺŹŻč˝ă§ă‚ă‚‹ďĽŽĺľ“ăŁă¦
	&lt;category code&gt;ă®ćŚ‡ĺ®šĺŹŻč˝ĺ€¤ăŻ1--4, 6--8, 10--13ďĽŽ
	\item &lt;character code&gt;ăŚ128--255ă®ă¨ăŤăŻďĽŚć¬§ć–‡ć–‡ĺ­—ăăĽă‚Żăłă»ĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăłă®
	ă©ăˇă‚‰ă‚‚ç”źćĺŹŻč˝ă§ă‚ă‚‹ďĽŽ
	&lt;category code&gt;ă®ćŚ‡ĺ®šĺŹŻč˝ĺ€¤ăŻ1--4, 6--8, 10--13ďĽä»Ąä¸Šć¬§ć–‡ć–‡ĺ­—ăăĽă‚Żăłă‚’ç”źćďĽ‰ďĽŚ
	ăŠă‚ăł16--19ďĽĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăłă‚’ç”źćďĽ‰ďĽŽ
	\item &lt;character code&gt;ăŚ256ä»Ąä¸Šă®ă¨ăŤăŻďĽŚĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăłă®ăżç”źćĺŹŻč˝ă§ă‚ă‚‹ďĽŽĺľ“ăŁă¦
	&lt;category code&gt;ă®ćŚ‡ĺ®šĺŹŻč˝ĺ€¤ăŻ16--19ďĽŽ
  \end{itemize}
\end{dangerous}
\begin{dangerous}
  \.{Uchar}ă§ĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăłă‚’ç”źćă™ă‚‹ă«ăŻďĽŚăťă®ĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă‚’
  ä¸Žăă‚‹ĺż…č¦ăŚă‚ă‚‹ăŚďĽŚăťă®ĺ€¤ăŻĺ†…é¨ćĽ˘ĺ­—ă‚łăĽă‰ă«äľťă‚‹ă®ă§ďĽŚ
  |\jis|ă‚„|\euc|ç­‰ă®ć–‡ĺ­—ă‚łăĽă‰ĺ¤‰ćŹ›ă—ăŞăźă†ă‚Łă–ă‚’ä˝żă†ă®ăŚäľżĺ©ă§ă‚ă‚‹
  ďĽäľ‹ăă°|\Uchar\jis"3441|ă§ă€Ś\Uchar\jis"3441ă€Ťă‚’ĺľ—ă‚‹ďĽ‰ďĽŽ

  ăźă&nbsp;ă—ďĽŚ\eupTeX ă®\.{Ucharcat}ă§ăŻ&lt;character code&gt;ă¨&lt;category code&gt;ă‚’
  ç©şç™˝ăăĽă‚Żăłă§ĺŚşĺ‡ă‚‹ĺż…č¦ăŚă‚ă‚ŠďĽŚćł¨ć„Źă‚’č¦ă™ă‚‹ďĽŽ
  äľ‹ăă°ďĽŚă‚«ă†ă‚´ăŞăĽă‚łăĽă‰17ă®ă€ŚćĽ˘ă€Ťă‚’ĺľ—ă‚ă†ă¨ă—ă¦ďĽŚ
  ĺŤă«
  \begin{quote}
	\verb+\Ucharcat\jis"3441 17 % ă‚¨ă©ăĽ+
  \end{quote}
  ă¨ć›¸ăŹă¨ă‚¨ă©ăĽ\footnote{%
    \.{jis}ă®ĺ±•é–‹ć™‚ă«ĺľŚă‚Ťă®ç©şç™˝ăăĽă‚ŻăłăŚéŁźă‚Źă‚Śă¦ă—ăľă„ďĽŚ\.{Uchar}ă«ăŻ
    ć–‡ĺ­—ă‚łăĽă‰2845017ďĽ$\text{ćĽ˘}=\text{U+6F22}\rightarrow 28450$ă¨17ăŚ
    çą‹ăŚăŁăźçµćžśďĽ‰ăŚć¸ˇăŁă¦ă—ăľă†ďĽŽ
  }ăŚç™şç”źă™ă‚‹ďĽŽć¬ˇă®ă‚ă†ă«ć›¸ă‘ă°ă‚¨ă©ăĽăŚĺ›žéżă§ăŤă‚‹ă‚ă†ă§ă‚ă‚‹ďĽŽ
  \begin{quote}
	\verb+\Ucharcat\jis"3441\noexpand\space17 % ă‚¨ă©ăĽĺ›žéż+
  \end{quote}
  ă‚ă‚‹ă„ăŻďĽš
  \begin{quote}
	\verb+\Ucharcat\numexpr\jis"3441\relax 17 % ă‚¨ă©ăĽĺ›žéż+
  \end{quote}
\end{dangerous}


\subsection{ă‚¨ă©ăĽćŠ‘ĺ¶(\.{suppress...error})}
\hologo{LuaTeX}ă«ĺ®źčŁ…ă•ă‚Śă¦ă„ă‚‹ă‚¨ă©ăĽç™şç”źă‚’ćŠ‘ć­˘ă™ă‚‹ă—ăŞăźă†ă‚Łă–ăźăˇă®ă†ăˇ
ă„ăŹă¤ă‹ă‚’ďĽŚ\epTeX~211207ă§čż˝ĺŠ&nbsp;ă—ăźďĽŽ
% čŞ¬ćŽć–‡ăŻ https://github.com/texjporg/tex-jp-build/pull/127 ă‚ă‚Š
\begin{cslist}
 \csitem[\.{suppresslongerror} (integer)]
  ă“ă®ĺ†…é¨ć•´ć•°ăŚéťžă‚Ľă­ă®ă¨ăŤďĽŚ\.{long}ăŞă—ă§ĺ®šçľ©ă•ă‚Śăźăžă‚Żă­ă®ĺĽ•ć•°ă«\.{par}ăŚĺ…ĄăŁăź
  ĺ&nbsp;´ĺă® \texttt{! Paragraph ended before \.{...} was complete.} ă¨ă„ă†ă‚¨ă©ăĽă‚’ćŠ‘ć­˘ă™ă‚‹ďĽŽ
 \csitem[\.{suppressoutererror} (integer)]
  ă“ă®ĺ†…é¨ć•´ć•°ăŚéťžă‚Ľă­ă®ă¨ăŤďĽŚ\.{outer}ç”±ćťĄă®ă‚¨ă©ăĽă‚’ćŠ‘ć­˘ă™ă‚‹ďĽŽ
 \csitem[\.{suppressmathparerror} (integer)]
  ă“ă®ĺ†…é¨ć•´ć•°ăŚéťžă‚Ľă­ă®ă¨ăŤďĽŚć•°ĺĽŹă˘ăĽă‰ä¸­ă®\.{par}ă«ç”±ćťĄă™ă‚‹ă‚¨ă©ăĽă‚’ćŠ‘ć­˘ă™ă‚‹ďĽŽ
\end{cslist}


\section{\TeX~Liveă«ă‚ă‚‹ć‹ˇĺĽµ}
2021ĺą´ä»Ąé™Ťă®\epTeX/\eupTeX ă«ăŻďĽŚ\TeX~LiveăăĽă&nbsp;ă«ă‚ăŁă¦
\hologo{pdfTeX}ĺŹŠăł\hologo{XeTeX}ă¨ĺ…±é€šă®
ă‚Żă­ă‚ąă‚¨ăłă‚¸ăłăŞć‹ˇĺĽµć©źč˝ăŚă„ăŹă¤ă‹čż˝ĺŠ&nbsp;ă•ă‚Śă¦ă„ă‚‹ďĽŽ
% ĺ®źăŻ
%   * tracingstacklevels.ch (add |\tracingstacklevels| since TL2021)
%   * partokenname.ch (add |\tracingstacklevels| since TL2022)
% ă® change file ăŻ e-(u)pTeX ă®ăżăŞă‚‰ăšďĽŚç´&nbsp;ă®\pTeX ă«ă‚‚é©ç”¨ă•ă‚Śă¦ă„ă‚‹ďĽŽ
% ć®‹ă‚Šă®
%   * char-warning-eptex.ch (enhance |\tracinglostchars| since TL2021)
%   * showstream.ch (add |\showstream| since TL2022)
% ă® change file ăŻ e-TeX ă‹ă‚‰ă®ĺ¤‰ć›´ă§ă‚ă‚‹ăźă‚ďĽŚç´&nbsp;ă®\pTeX ă«ăŻé©ç”¨ă•ă‚ŚăŞă„ďĽŽ

\subsection{ă‡ăăă‚°ć©źč˝(\.{tracing...})}
\begin{cslist}
 \csitem[\.{tracinglostchars} (integer)]
  çŹľĺś¨ă®ă•ă‚©ăłă(TFM)ă«ĺ­ĺś¨ă—ăŞă„ć–‡ĺ­—ă«ă‚˘ă‚Żă‚»ă‚ąă—ăźă¨ăŤă®ăă¬ăĽă‚ąć…ĺ&nbsp;±ă‚’
  ă©ă®ă‚ă†ă«čˇ¨ç¤şă™ă‚‹ă‹ă‚’ć±şĺ®šă™ă‚‹ĺ†…é¨ć•´ć•°ă§ă‚ă‚‹ďĽŽ
  \TeX82ăŻďĽŚĺ€¤ăŚć­ŁďĽ1ä»Ąä¸ŠďĽ‰ă®ĺ&nbsp;´ĺă«
\begin{verbatim}
  Missing character: There is no ć–‡ĺ­— in font ă•ă‚©ăłăĺŤ!
\end{verbatim}
  ă®ăˇăă‚»ăĽă‚¸ă‚’ă­ă‚°ă•ă‚ˇă‚¤ă«ă«ĺ‡şĺŠ›ă™ă‚‹ďĽŽ
  ăľăź\eTeX ăŻďĽŚĺ€¤ăŚ2ä»Ąä¸Šă®ĺ&nbsp;´ĺă«ĺŚăăˇăă‚»ăĽă‚¸ă‚’\.{tracingonline}ă®ĺ€¤ă«
  ă‹ă‹ă‚Źă‚‰ăšă‚żăĽăźăŠă«ă«ă‚‚ĺ‡şĺŠ›ă™ă‚‹ďĽŽ

  \TeX~Live 2021ä»Ąé™Ťă§ăŻă•ă‚‰ă«ďĽŚĺ€¤ăŚ3ä»Ąä¸Šă®ĺ&nbsp;´ĺă«ă‚¨ă©ăĽă‚’ç™şç”źă•ă›ďĽŚ
  ĺ˝“č©˛ć–‡ĺ­—ă‚łăĽă‰ă‚’16é€˛ć•°ă§čˇ¨ç¤şă™ă‚‹ă‚ă†ă«ć‹ˇĺĽµă•ă‚Śă¦ă„ă‚‹ďĽŽäľ‹ăă°ä»Ąä¸‹ă®ă¨ăŠă‚ŠďĽš
\begin{verbatim}
  ! Missing character: There is no ć–‡ĺ­— ("XX) in font ă•ă‚©ăłăĺŤ.
\end{verbatim}

  ăŞăŠďĽŚ\pTeX çł»ĺ—ă§ăŻă€Śĺ…¨ă¦ă®ĺ’Ść–‡ă•ă‚©ăłăă«ăŻďĽŚĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă¨ă—ă¦ćś‰ĺŠąăŞ
  ĺ…¨ă¦ă®ć–‡ĺ­—ăŚĺ­ĺś¨ă™ă‚‹ă€Ťă¨ă„ă†ć‰±ă„ă§ă‚ă‚‹ăźă‚ďĽŚĺ’Ść–‡ć–‡ĺ­—ă‚łăĽă‰ă«ă¤ă„ă¦
  ă“ă®ăă¬ăĽă‚ąć…ĺ&nbsp;±ăŚĺ‡şĺŠ›ă•ă‚Śă‚‹ă“ă¨ăŻăŞă„ďĽŽ

 \csitem[\.{tracingstacklevels} (integer)]
  \.{tracingstacklevels}ă®ĺ€¤ăŚć­ŁďĽŚă‹ă¤\.{tracingmacros}ă®ĺ€¤ă‚‚ć­Łă®ĺ&nbsp;´ĺďĽŚ
  ăžă‚Żă­ĺ±•é–‹ă®ć·±ă•ă‚’ç¤şă™prefixă‚’ĺ‡şĺŠ›ă™ă‚‹ďĽŽäľ‹ăă°ďĽŚć·±ă•2ă®ă¨ăŤăŻ |~..| ăŚčˇ¨ç¤şă•ă‚Śă‚‹ďĽŽ
  ăŞăŠďĽŚćŚ‡ĺ®šă•ă‚Śăźć•°ĺ€¤ä»Ąä¸Šă®ć·±ă•ă«ă¤ă„ă¦ăŻăžă‚Żă­ĺ±•é–‹ă®ăă¬ăĽă‚ąă‚’ĺ‡ă‚ŠćŤ¨ă¦ă‚‹ďĽŽ
  \TeX~Live 2021ă§čż˝ĺŠ&nbsp;ă•ă‚ŚăźďĽŽ
\end{cslist}


\subsection{parăăĽă‚Żăłă®ĺ¶ĺľˇ}
\TeX82ă§ăŻ\.{par}ă¨ă„ă†ĺŤç§°ă®ĺ¶ĺľˇç¶´ăŻç‰ąĺĄăŞĺ˝ąĺ‰˛ă‚’ćŚăŁă¦ă„ă‚‹ďĽŽ
\begin{itemize}
  \item ä»Ąä¸‹ă®ĺ&nbsp;´ĺă«ăŻč‡Şĺ‹•çš„ă«\.{par}ăŚćŚżĺ…Ąă•ă‚Śă‚‹ďĽš
    \begin{itemize}
      \item ĺ…ĄĺŠ›ä¸­ă®ç©şčˇŚďĽ2čˇŚé€Łç¶šă§ç©şčˇŚăŚă‚ăŁăźĺ&nbsp;´ĺăŻ2ĺ›ž\.{par}ăŚç™şčˇŚă•ă‚Śă‚‹ďĽ‰
      \item ć°´ĺąłă˘ăĽă‰ä¸­ă§\TeX ăŚĺž‚ç›´ă˘ăĽă‰ç”¨ă®ĺ‘˝ä»¤(\.{vskip}, \.{hrule},
        \.{unvbox}, \.{unvcopy}, \.{halign}, \.{end}, \.{dump})ă«
        ĺ‡şăŹă‚Źă—ăźă¨ăŤďĽŚăťă®ç›´ĺ‰Ť\footnote{ă‚ŞăŞă‚¸ăŠă«ă®çŠ¶ć…‹ă§ăŻ\.{par}ăŻ
        ć®µč˝çµ‚äş†ďĽĺž‚ç›´ă˘ăĽă‰ă¸ç§»čˇŚďĽ‰ă®ć„Źĺ‘łă‚’ćŚă¤ăŚďĽŚ\.{par}ăŚĺ†Ťĺ®šçľ©ă•ă‚Śă¦
        ĺž‚ç›´ă˘ăĽă‰ă¸ă®ç§»čˇŚă«ĺ¤±ć•—ă™ă‚‹ă¨ç„ˇé™ă«ăĽă—ăŚç™şç”źă™ă‚‹ďĽŽ}
        % https://www.ma.ns.tcu.ac.jp/Pages/TeX/vglue.par.html
        % https://hak7a3.hatenablog.com/entry/2015/03/26/224533
    \end{itemize}
 \item \.{long}ăŞă—ă§ĺ®šçľ©ă•ă‚Śăźăžă‚Żă­ä¸­ă®ĺĽ•ć•°ă«ăŻ\.{par}ăŻä˝żç”¨ă§ăŤăŞă„ďĽŽ
\begin{verbatim}
  ! Paragraph ended before \... was complete.
\end{verbatim}
  ă¨ă„ă†ă‚¨ă©ăĽăŚç™şç”źă™ă‚‹ďĽŽ
  ăŞăŠďĽŚç¦ć­˘ă•ă‚Śă‚‹ă®ăŻ\.{par}ă¨ă„ă†\emph{ĺŤç§°}ă®ĺ¶ĺľˇç¶´ă§ă‚ăŁă¦ďĽŚ
  \verb+\let\endgraf\par+ăŞă©ă®ă‚ă†ă«ĺĄă®ĺŤç§°ă®ĺ¶ĺľˇç¶´ă«
  \.{par}ă®ć„Źĺ‘łă‚’ă‚łă”ăĽă—ă¦ç”¨ă„ă‚‹ă®ăŻĺ•ŹéˇŚăŞă„ďĽŽ
\end{itemize}

\LaTeXe~2021-06-01ăŞă©ă§ăŻă€Ść®µč˝çµ‚äş†ć™‚ă®ă•ăă‚Żă€Ťă‚’ĺ®źçŹľă•ă›ă‚‹ăźă‚ă«
\.{par}ă®č‡Şĺ‹•ćŚżĺ…Ąă¨ă„ă†ćŚ™ĺ‹•ă‚’ĺ©ç”¨ă—ă¦ăŠă‚ŠďĽŚ\.{par}ă‚’ĺ†Ťĺ®šçľ©ă—ă¦ă„ă‚‹ďĽŽ

ă—ă‹ă—ďĽŚ\TeX82ă«ăŻă€Ś\.{par}ă¨ă„ă†ĺŤç§°ă®ĺ¶ĺľˇç¶´ă€Ťă§ăŻăŞăŹă€Śćš—é»™ă®pară€Ťă‚’ćŚżĺ…Ąă™ă‚‹
ç®‡ć‰€ăŚĺ­ĺś¨ă™ă‚‹ďĽŽăťă®ä»Łčˇ¨ăŚă€Ś\.{vbox}ă®ä¸­čş«ăŚć°´ĺąłă˘ăĽă‰ă§çµ‚ă‚ŹăŁăźĺ&nbsp;´ĺă€Ťă§ă‚ă‚ŠďĽŚ
ă“ă®ĺ&nbsp;´ĺăŻ\.{par}ă¨ă„ă†ĺŤç§°ă®ĺ¶ĺľˇç¶´ă‚’ĺ†Ťĺ®šçľ©ă—ă¦ă‚‚ä˝żă‚Źă‚ŚăŞă„ďĽŽ
ă™ăŞă‚ŹăˇďĽŚ\LaTeXe ăŞă©ă®ă€Ść®µč˝çµ‚äş†ć™‚ă®ă•ăă‚Żă€ŤăŚćŠśă‘ă¦ă—ăľă†ă“ă¨ă«ăŞă‚‹ďĽŽ

2021-07-25ă®ă‚łăźăăr60054ďĽ\TeX~Liveă§ăŻ2022ĺą´ä»Ąé™ŤďĽ‰ă§ăŻďĽŚ
\.{partokenname}ă¨\.{partokencontext}ă¨ă„ă†ă—ăŞăźă†ă‚Łă–ăŚčż˝ĺŠ&nbsp;ă•ă‚ŚăźďĽŽ

\begin{cslist}
 \csitem[\.{partokenname} &lt;control sequence&gt;]
  ä¸Šă§čż°ăąăź\.{par}ă¨ă„ă†ĺŤç§°ă®ĺ¶ĺľˇç¶´ă®ç‰ąĺĄăŞĺ˝ąĺ‰˛ă‚’ďĽŚä»–ă®ĺ¶ĺľˇç¶´ă«ç§»ă™ĺŠąćžśă‚’ćŚă¤ďĽŽ
  \begin{quote}
	\verb+\partokenname \hoge+
  \end{quote}
  ă‚’ĺ®źčˇŚă—ăźéš›ă«čµ·ă“ă‚‹çŠ¶ćłă§čŞ¬ćŽă™ă‚‹ă¨ďĽŚ
  \begin{itemize}
    \item ä¸Šč¨ă§čż°ăąăźă€Śč‡Şĺ‹•ćŚżĺ…Ąă•ă‚Śă‚‹ĺ‘˝ä»¤ă€ŤăŚ\.{par}ă‹ă‚‰\.{hoge}ă«ĺ¤‰ă‚Źă‚‹ďĽŽ
    \item \.{long}ăŞă—ă§ĺ®šçľ©ă•ă‚Śăźĺ¶ĺľˇç¶´ă®ĺĽ•ć•°ă«ăŠă„ă¦ďĽŚ\.{par}ăŻč¨±ĺ®ąă•ă‚Śă‚‹ă‚ă†ă«ăŞă‚‹ăŚ
    é€†ă«\.{hoge}ăŚč¨±ĺ®ąă•ă‚ŚăŞăŹăŞă‚‹ďĽŽ
  \end{itemize}
  ăŞăŠďĽŚ\.{partokenname}ă®ĺŠąćžśăŻĺ¸¸ă«ă‚°ă­ăĽăă«ă§ă‚ă‚‹ďĽŽ

 \csitem[\.{partokencontext} (integer)]
  \TeX ăŚ\.{par}\footnote{ă‚ă‚‹ă„ăŻ\.{partokenname}ă«ă‚ă‚Š
  ä»Łă‚Źă‚Šă«ĺĄă®ĺ¶ĺľˇç¶´ă«ăŞăŁă¦ă„ă‚‹ă‹ă‚‚ă—ă‚ŚăŞă„ďĽŽ}ă‚’
  č‡Şĺ‹•ćŚżĺ…Ąă™ă‚‹ç®‡ć‰€ă‚’ĺ¶ĺľˇă™ă‚‹ĺ†…é¨ć•´ć•°ă§ă‚ă‚ŠďĽŚć—˘ĺ®šĺ€¤ăŻ0ă§ă‚ă‚‹ďĽŽ

  č‡Şĺ‹•ćŚżĺ…Ąç®‡ć‰€ăŻć¬ˇă®é€šă‚ŠďĽš
  \begin{description}
    \item[ă„ă¤ă§ă‚‚ćŚżĺ…Ą] \TeX82ă§ă®č‡Şĺ‹•ćŚżĺ…Ąç®‡ć‰€ďĽä¸Ščż°ďĽ‰
    \item[$\.{partokencontext}&gt;0$ă®ă¨ăŤă®ăżćŚżĺ…Ą]
      \.{vbox}, \.{vtop}, \.{vcenter}ăťă‚Śăžă‚Śă®ćś«ĺ°ľ
    \item[$\.{partokencontext}&gt;1$ă®ă¨ăŤă®ăżćŚżĺ…Ą]
      \.{insert}, \.{vadjust}, \.{valign}ă§ă®ĺ„ă‚»ă«ďĽŚ\.{noalign}ă®ăťă‚Śăžă‚Śă®ćś«ĺ°ľă¨ďĽŚ
      output routineă®ćś«ĺ°ľ
  \end{description}
  ăŞăŠďĽŚĺ®źéš›ă®ćŚżĺ…ĄăŻăťă‚Śăžă‚Śă®ç®‡ć‰€ăŚć°´ĺąłă˘ăĽă‰ă§ă‚ăŁăźĺ&nbsp;´ĺă«ă®ăżčˇŚă‚Źă‚Śă‚‹ďĽŽ
\end{cslist}

\.{partokencontext}ă®ć—˘ĺ®šĺ€¤ăŻ0ă§ă‚ă‚ŠďĽŚă“ă®ĺ&nbsp;´ĺă®ćŚ™ĺ‹•ăŻ\TeX82ă¨äş’ćŹ›ă§ă‚ă‚‹ďĽŽ
ĺ€¤ă‚’1ă«ă™ă‚Śă°ďĽŚă€Ś\.{vbox}ă®ä¸­čş«ăŚć°´ĺąłă˘ăĽă‰ă§çµ‚ă‚ŹăŁăźĺ&nbsp;´ĺă€Ťă«ă‚‚
ă€Śćš—é»™ă®pară€Ťă§ăŻăŞăŹă€Ś\.{par}ă¨ă„ă†ĺŤç§°ă®ĺ¶ĺľˇç¶´ă€ŤăŚćŚżĺ…Ąă•ă‚Śă‚‹ă®ă§ďĽŚ
\.{par}ă®ĺ†Ťĺ®šçľ©ăŚĺŠąăŹďĽŽ


\subsection{\.{show}çł»ă‚łăžăłă‰ă®ĺ‡şĺŠ›ĺ¶ĺľˇ}
\begin{cslist}
 \csitem[\.{showstream} (integer)]
  é€šĺ¸¸ďĽŚ\.{show}çł»ă‚łăžăłă‰\footnote{ĺ…·ä˝“çš„ă«ăŻ
  \TeX82ă®\.{show}, \.{showbox}, \.{showlists}, \.{showthe}ă¨
  \eTeX ă®\.{showgroups}, \.{showifs}, \.{showtokens}ăŚč©˛ĺ˝“ďĽŽ
  ă•ă‚‰ă«\pTeX çł»ĺ—ă§ăŻ\.{showmode}ă‚‚ĺŠ&nbsp;ă‚Źă‚‹ďĽŽ}ăŻ
  ă‚¨ă©ăĽç™şç”źă¨ĺŚć§ă«ä¸€ć—¦ĺść­˘ă—ďĽŚç¨®ă€…ă®ć…ĺ&nbsp;±ă‚’ă‚żăĽăźăŠă«ă‚„ă­ă‚°ă•ă‚ˇă‚¤ă«ă«ĺ‡şĺŠ›ă™ă‚‹ďĽŽ
  ă—ă‹ă—ďĽŚĺ†…é¨ć•´ć•°\.{showstream}ă®ĺ€¤ă‚’ă‚ŞăĽă—ăłăŞĺ‡şĺŠ›ă‚ąăăŞăĽă&nbsp;ďĽ\.{openout}ă§
  ă‚ŞăĽă—ăłă•ă‚Śă‚‹ďĽ‰ă«ä¸€č‡´ă•ă›ă‚‹ă¨ďĽŚç¨®ă€…ă®ć…ĺ&nbsp;±ă®ĺ‡şĺŠ›ĺ…ăŚăŞă€ă‚¤ă¬ă‚Żăă•ă‚ŚďĽŚ
  ă‚żăĽăźăŠă«ă‚„ă­ă‚°ă•ă‚ˇă‚¤ă«ă«ăŻĺ‡şĺŠ›ă›ăšä¸€ć—¦ĺść­˘ă‚‚ă—ăŞă„ďĽŽ
  ć—˘ĺ®šĺ€¤ăŻ$-1$ă§ă‚ă‚ŠďĽŚă“ă‚ŚăŻă•ă‚ˇă‚¤ă«ă¨ä¸€č‡´ă—ăŞă„ăźă‚\TeX82ă¨ĺŚăĺ‹•ä˝śă¨ăŞă‚‹ďĽŽ
  2021-11-07ă®ă‚łăźăăr60992ďĽ\TeX~Liveă§ăŻ2022ĺą´ä»Ąé™ŤďĽ‰ă§čż˝ĺŠ&nbsp;ă•ă‚ŚăźďĽŽ
\end{cslist}


\subsection{ĺ±•é–‹é…ĺ»¶\.{special}}
\begin{cslist}
 \csitem[\.{special} \texttt{shipout} &lt;general text&gt;]
  \TeX82ă®\.{special}ă—ăŞăźă†ă‚Łă–ăŻďĽŚ\.{immediate}\.{write}ă¨ĺŚć§ă«
  ĺĽ•ć•°ă®ăăĽă‚Żăłĺ—ă‚’ă€ŚĺŤłĺş§ă«ă€Ťĺ®Śĺ…¨ĺ±•é–‹ă™ă‚‹ďĽŽ
  \epTeX~230214ďĽ\TeX~Live 2023ä»Ąé™ŤďĽš2023-02-13ă®ă‚łăźăăr65815ă‚’ĺŹ‚ç…§ďĽ‰
  ă§ăŻďĽŚć–°ăźă«ă‚­ăĽăŻăĽă‰|shipout|ă‚’ä»ă‘ă‚‹ă¨ăăĽă‚Żăłă®ĺ±•é–‹ă‚’
  ă€ŚăšăĽă‚¸ă‚’DVIă•ă‚ˇă‚¤ă«ă«ĺ‡şĺŠ›ă™ă‚‹ć™‚ç‚ąă€Ťăľă§é…ă‚‰ă›ă‚‹
  ďĽéťž\.{immediate}ăŞ\.{write}ă¨ĺŚć§ďĽ‰ă“ă¨ăŚă§ăŤă‚‹ďĽŽĺŚć§ă®ć©źč˝ăŚ
  \hologo{pdfTeX}, \hologo{XeTeX}, \hologo{LuaTeX}, Alephă§
  ä¸€ć–‰ă«ĺ®źčŁ…ă•ă‚Śă¦ă„ă‚‹ďĽŽ
\end{cslist}


\begin{comment}
\section{äş’ćŹ›ć€§}
\eTeX, \pTeX ă¨ă®äş’ćŹ›ć€§ă‚’ăŻă‹ă‚‹ă®ă«ćś‰ĺŠąăŞć‰‹ć®µă¨ă—ă¦ăŻďĽŚăľăš\texttt{TRIP}
testăŚă‚ă‚‹ďĽŽ\cite{h7k}ă«ă‚‚ć›¸ă„ăźăŚďĽŚă“ă‚ŚăŻ\TeX ă®ă‚˝ăĽă‚ąă®ĺ…¨čˇŚă‚’ĺ®źčˇŚă™ă‚‹
ă‚ă†ăŞă†ă‚ąăă‚˝ăĽă‚ąă§ă‚ă‚ŠďĽŚ\texttt{TRIP} testă®ĺ®źčˇŚçµćžśăŚé•ăă°ďĽŚă©ă“ă‹ă®
ĺ‹•ä˝śăŚé•ăŁă¦ă„ă‚‹ă“ă¨ăŚĺ†ă‹ă‚‹ă¨ă„ă†ä»•ćŽ›ă‘ă§ă‚ă‚‹ďĽŽ

ĺą¸ă„ă«ă‚‚ďĽŚ\epTeX ă®ďĽcompatibility modeă«ăŠă‘ă‚‹ďĽ‰\texttt{TRIP} testă®ĺ®źčˇŚçµćžśăŻďĽŚ\pTeX ă®ăťă‚Śă¨ă»ă¨ă‚“
ă©ĺŚăă§ă‚ă‚ŠďĽŚé•ă†ç‚ąăŻä»Ąä¸‹ă®ăżă§ă‚ăŁăźďĽš
\begin{itemize}
\item \texttt{Memory usage}ă®é•ă„ďĽš
\begin{alltt}
  Memory usage before: \(x\,\)&amp;\(\,y\); after: \(z\,\)\&amp;\(\,w\); still untouched: \(u\)
\end{alltt}
ă®ă¨ă“ă‚Ťă§ďĽŚ$x$, $z$ăŚ4ĺ¤šăŹďĽŚ$u$ăŚ4ĺ°‘ăŞă„ďĽŽ
\item ďĽ\texttt{FAM256}ă‘ăăă®ăŠă‹ă’ă§ďĽ‰ć•°ĺĽŹă•ă‚©ăłăăŚ256ĺ€‹ĺŚć™‚ă«
ć‰±ăă‚‹ă‚ă†ă«ăŞăŁăźă“ă¨ă«ă‚ă‚‹ďĽŚă‚¨ă©ăĽă®ćśŞç™şç”źă‚„ă‚¨ă©ăĽăˇăă‚»ăĽă‚¸ă®é•ă„ďĽŽ
\item ă­ă‚°ă®ćś€ĺľŚă«ĺ‡şă¦ăŹă‚‹ďĽŚăˇă˘ăŞç·Źä˝żç”¨é‡ŹďĽŽ
\end{itemize}
ăľăźďĽŚextended modeă¨
compatibility modeă«ă‚ă‚‹ĺ‡şĺŠ›ă®é•ă„ă‚’ć¤śč¨Ľă™ă‚‹ă¨ďĽŚMemory usageă®é•ă„ă‚„ăˇă˘ăŞç·Źä˝żç”¨é‡Źă®ä»–ă«
ăŻďĽŚ\texttt{e-TRIP}ă®čŞ¬ćŽć›¸p.\ 4ă®é&nbsp;…ç›®4.ă«ă‚ă‚‹é•ă„ă—ă‹č¦‹ĺŹ—ă‘ă‚‰ă‚ŚăŞă‹ăŁăźďĽŚ

\par\vskip0.5\baselineskip\par

ć¬ˇă«ďĽŚ\eTeX ă«ăŻďĽŚ\eTeX ă«ă‚ăŁă¦ć‹ˇĺĽµă•ă‚Śăźé¨ĺ†ă‚’čŞżăąă‚‹ďĽŚĺŚć§ă®
\texttt{e-TRIP} testăŚĺ­ĺś¨ă™ă‚‹ďĽŽ\pTeX çł»ĺ—ă§ăŻďĽŚ|\showbox|ăŞă©ă§ă„
ăˇă„ăˇçµ„ć–ąĺ‘ă‚’čˇ¨ç¤şă™ă‚‹ă®ă§ďĽŚăťă‚Śă‚’
\begin{verbatim}
  $ alias sep='sed "s/, yoko direction//;s/yoko direction, //;\
    s/yoko(math) direction, //"'
\end{verbatim}
ă¨ă„ă†aliasă‚’ĺ©ç”¨ă™ă‚‹ă“ă¨ă§log fileă‹ă‚‰é™¤ĺŽ»ă—ďĽŚăťă‚Śă¨\eTeX ă§ă®
\texttt{e-TRIP} testă®ĺ‡şĺŠ›ă¨ćŻ”ăąăźçµćžśďĽŚ
\begin{itemize}
\item Memory Usageă®é•ă„ďĽç•ĄďĽ‰
\item ă¬ă‚¸ă‚ąă‚żă®ä˝żç”¨ĺŹŻč˝ĺ€‹ć•°ă‚’65536ĺ€‹/ç¨®éˇžă¨ă—ăźă“ă¨ă«ă‚ă‚‹ă‚¨ă©ăĽă®ćśŞç™şç”ź
\item ďĽĺ’Ść–‡ć–‡ĺ­—ă®ăźă‚ďĽ‰character codeă«256ä»Ąä¸Šă‚‚č¨±ă™ă“ă¨ă«ă‚ă‚‹
      ă‚¨ă©ăĽă®ćśŞç™şç”źďĽŽ
\end{itemize}
ă¨ă„ă†é•ă„ă‚’ĺľ—ăźďĽŽ

\par\vskip0.5\baselineskip\par

ă™ă‚‹ă¨ďĽŚćś€ĺľŚă«ďĽŚ\pTeX ç‰ąćś‰ă®ć‹ˇĺĽµé¨ĺ†ă®ă†ă‚ąăă‚’ă—ăźăŹăŞă‚‹ă‚Źă‘ă&nbsp;ăŚďĽŚĺŚ—ĺ·ťă®
çźĄă‚‹é™ă‚Šă«ăŠă„ă¦ăŻďĽŚăťă®ă‚ă†ăŞă†ă‚ąăă‚˝ăĽă‚ąăŻĺ…¬ĺĽŹă«ăŻĺ­ĺś¨ă—ăŞă„ă‚ă†ă§ă‚ă‚‹ďĽŽ
ă—ă‹ă—ďĽŚă‚„ăŻă‚Šć°—ă«ăŞă‚‹ĺ•ŹéˇŚă§ă‚ă‚Š{\tiny ďĽă•ă‚‹ć–ąéť˘ă‹ă‚‰ĺś§ĺŠ›ă‚‚ăŤăźă®ă§ďĽ‰}ďĽŚ
ĺ€‹äşşçš„ă«ä˝śăŁă¦ăżăźă‚‚ă®ăŚ\texttt{ptex-qtrip}ă§ă‚ă‚‹ďĽŽč©łç´°ăŞčŞ¬ćŽăŻăťăˇă‚‰ă®
ă‰ă‚­ăĄăˇăłăă«č­˛ă‚‹ďĽŽă¨ă‚‚ă‹ăŹďĽŚă“ă‚Śă‚’ĺ‹•ä˝śă•ă›ă¦log fileă‚’ćŻ”ăąă¦ăżă‚‹ă¨ďĽŚăˇ
ă˘ăŞé–˘é€Łă‚„\texttt{FAM256}é–˘é€Łä»Ąĺ¤–ăŻ
\begin{verbatim}
  -% split2 to -0.01802,6.94444 p=-10000
  +% split2 to -0.01806,6.94444 p=-10000
\end{verbatim}
ä»Ąĺ¤–ă®é•ă„ă—ă‹ăŞă‹ăŁăźďĽŽă‚Źăšă‹$0.00004$ă®é•ă„ďĽĺŤä˝ŤăŚă‚‚ă—pointă&nbsp;ă¨ă—ăźă‚‰
$3$\,spďĽ‰ă&nbsp;ăŚďĽŚă©ă“ă‹ć°—ă«ăŞă‚‹ă¨ă“ă‚Ťă§ă‚ă‚‹ďĽŽ

ä¸Šă®ç®‡ć‰€ă‚‚ă‚ă‚‹ă—ďĽŚăľăź\texttt{ptex-qtrip}č‡Şä˝“ăŚăľă&nbsp;ĺ®Śĺ…¨ăŞă‚‚ă®ă§ăŻăŞă®ă&nbsp;
ăŚďĽŚ\pTeX ă¨\epTeX ăŻĺ®źç”¨ä¸Šă«ăŠă„ă¦ăŻäş’ćŹ›ă¨č¨€ăăťă†ăŞć°—ă‚‚ă—ăŞăŹă‚‚ăŞă„ďĽŽ

\end{comment}

\begin{thebibliography}{99}
 \bibitem{h7k} ĺŚ—ĺ·ť ĺĽĺ…¸ďĽŚă€Śč¨ç®—ć•°ĺ­¦IIă€€ä˝śćĄ­č¨éŚ˛ă€ŤďĽŚ2008ďĽŽ\\
  \url{https://osdn.jp/projects/eptex/document/resume/ja/1/resume.pdf}ă»ă‹ďĽŚ
  ćś¬PDFă¨ĺŚăă‡ă‚Łă¬ă‚ŻăăŞă«ă‚ă‚‹\file{eptex_resume.pdf}ăŚăťă‚Śă«ă‚ăźă‚‹ďĽŽ
 \bibitem{yamamoto} ĺ±±ćś¬ ĺ’Śçľ©ďĽŚă€Ść•°ĺĽŹfamă®ĺ¶é™ă¨luatexă€ŤďĽŚ
  ćŽ˛ç¤şćťżă€Ś\TeX\ Q\ \&amp;\ Aă€ŤďĽŚ2009/02/12ďĽŽ\\
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/52744.html}
 \bibitem{yamamoto2} ĺ±±ćś¬ ĺ’Śçľ©ďĽŚă€ŚRe: ć•°ĺĽŹfamă®ĺ¶é™ă¨luatexă€ŤďĽŚ
  ćŽ˛ç¤şćťżă€Ś\TeX\ Q\ \&amp;\ Aă€ŤďĽŚ2009/02/16ďĽŽ
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/52767.html}
 \bibitem{yamamoto3} ĺ±±ćś¬ ĺ’Śçľ©ďĽŚă€Ść•°ĺĽŹfamć‹ˇĺĽµăžă‚Żă­ for e-pTeXç­‰ă€ŤďĽŚ
  ćŽ˛ç¤şćťżă€Ś\TeX\ Q\ \&amp;\ Aă€ŤďĽŚ2009/02/21ďĽŽ
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/52799.html}
 \bibitem{expl31} ć˛łĺŽźďĽŚă€Śă‘ăă‚±ăĽă‚¸ă¨ă‡ă‚Łă‚ąăăŞă“ăĄăĽă‚·ă§ăłă«ă¤ă„ă¦ă€ŤďĽŚ
  ćŽ˛ç¤şćťżă€Ś\TeX\ Q\ \&amp;\ Aă€ŤďĽŚ2010/12/16ďĽŽ
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/55464.html}
 \bibitem{expl32} č§’č—¤ äş®ďĽŚă€ŚRe: ă‘ăă‚±ăĽă‚¸ă¨ă‡ă‚Łă‚ąăăŞă“ăĄăĽă‚·ă§ăłă«ă¤ă„ă¦ă€ŤďĽŚ
  ćŽ˛ç¤şćťżă€Ś\TeX\ Q\ \&amp;\ Aă€ŤďĽŚ2010/12/19ďĽŽ
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/55478.html}
 \bibitem{expl33} zrbabblerďĽŚă€ŚLaTeX3 ă¨ expl3 ă‘ăă‚±ăĽă‚¸ă€ŤďĽŚ
  ă–ă­ă‚°ă€Śăžă‚Żă­ă„ă‚¤ăĽă‚żăĽă€Ťĺ†…ďĽŚ2010/12/22ďĽŽ
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 \bibitem{pdfse} Dora TeXďĽŚă€ŚRe: |\pdfshellescape|,
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 \bibitem{tjb28} ĺŚ—ĺ·ť ĺĽĺ…¸ďĽŚ
  ă€Ś[ptex] |\inhibitglue|ă®ĺŠąĺŠ›ă€ŤďĽŚ2017/09/20ďĽŽ\\
  \url{https://github.com/texjporg/tex-jp-build/issues/28}ďĽŽ
 \bibitem{plt63} Dora TeXďĽŚ
  ă€Śp ćŚ‡ĺ®šă® tabular ă§ă®ă‚»ă«ĺ†’é&nbsp;­ă® |\relax\par|ă€ŤďĽŚ2018/02/19ďĽŽ\\
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 \bibitem{tjb81} ĺŚ—ĺ·ť ĺĽĺ…¸ďĽŚă€Śăă‚¤ăĺ—ă¨ĺ’Ść–‡ć–‡ĺ­—ăăĽă‚Żăłă®ĺŚşĺĄă€ŤďĽŚ2019/06/08ďĽŽ\\
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 \bibitem{tjb94} aminophenďĽŚă€Śe(u)ptex: add |\current(x)spacingmode|, |\currentcjktoken|ă€ŤďĽŚ%
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  \url{https://github.com/texjporg/tex-jp-build/pull/94}ďĽŽ
 \bibitem{tjb95} ĺŚ—ĺ·ť ĺĽĺ…¸ďĽŚă€Ś[eptex] |\Uchar| and |\Ucharcat|ă€ŤďĽŚ2019/10/30ďĽŽ\\
  \url{https://github.com/texjporg/tex-jp-build/issues/95}ďĽŽ
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 \bibitem{tjb115} aminophenďĽŚă€Śe(u)ptex: Add |\vadjust pre|ă€ŤďĽŚ2021/05/22ďĽŽ\\
  \url{https://github.com/texjporg/tex-jp-build/pull/115}
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