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\begin{document}
\title{\emph{\epTeX ã«ã¤ã„ã¦}}
\author{åŒ—å· å¼˜å…¸\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\epTeXversionï¼Œ\today}
\maketitle
\tableofcontents

\newpage
\section{ã¯ã˜ã‚ã«}
\epTeX ã¯ï¼Œæ±äº¬å¤§å­¦ç†å­¦éƒ¨æ•°å­¦ç§‘3å¹´ç”Ÿå¯¾è±¡ã®2007å¹´åº¦ã®æŽˆæ¥­ã€Œè¨ˆç®—æ•°å­¦IIã€
\footnote{\url{http://ks.ms.u-tokyo.ac.jp/}ï¼Ž}ã«ãŠã„ã¦åŒ—å·ãŒä½œæˆã—ãŸãƒ—ãƒ­ã‚°
ãƒ©ãƒ&nbsp;ã§ã‚ã‚‹ï¼Žã‚‚ã¨ã‚‚ã¨ã¯\pTeX~3.1.10ã‚’åŸºç›¤ã¨ã—ã¦ï¼Œ\eTeX~2.2ç›¸å½“ã®æ©Ÿèƒ½ã‚„
10é€²21æ¡ã®æµ®å‹•å°æ•°ç‚¹æ¼”ç®—ã‚’è¿½åŠ&nbsp;ã—ãŸã‚‚ã®ã§ã‚ã£ãŸãŒï¼Œä»Šã§ã¯æ¬¡ã®ç‚¹ãŒå¤‰ã‚ã£ã¦ã„ã‚‹
\footnote{æœ¬ç¨¿ã‚‚æœ€æ–°ç‰ˆ\TeX~Liveã«å–ã‚Šè¾¼ã¾ã‚ŒãŸæ©Ÿèƒ½è¿½åŠ&nbsp;ãƒ»æ›´æ–°ã«åˆã‚ã›ã¦æ”¹è¨‚ã—ã¦ã„ã‚‹ï¼Ž}ï¼Ž
\begin{itemize}
  \item \TeX~Live~2011ã«å–ã‚Šè¾¼ã¾ã‚Œã‚‹ã«ã‚ãŸã‚Šï¼Œ
  \eTeX ã‚’ãƒ™ãƒ¼ã‚¹ã«ã—ã¦ï¼Œãã®ä¸Šã«\pTeX æ‹¡å¼µã‚„ãã®ä»–è¿½åŠ&nbsp;æ©Ÿèƒ½ã‚’è¼‰ã›ã‚‹æ–¹é‡ã¸ã¨
  å¤‰æ›´ã•ã‚ŒãŸï¼Ž
  \item æµ®å‹•å°æ•°ç‚¹æ¼”ç®—ã®æ©Ÿèƒ½ã¯\epTeX~090927ã‹ã‚‰å‰Šé™¤ã•ã‚Œã¦ã„ã‚‹
  \footnote{%
  \TeX ã‚½ãƒ¼ã‚¹ä¸­ã§æµ®å‹•å°æ•°ç‚¹æ¼”ç®—ã‚’è¡Œã†æ‰‹æ®µã¨ã—ã¦ã¯ï¼Œä¾‹ãˆã°\LaTeX3ã®
  æ©Ÿèƒ½(\Pkg{l3fp})ã‚„ï¼Œ\Pkg{xint}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ãƒãƒ³ãƒ‰ãƒ«ãŒã‚ã‚‹ã®ã§ï¼Œ
  ãã¡ã‚‰ã‚’åˆ©ç”¨ã—ã¦æ¬²ã—ã„ï¼Ž}ï¼Ž
\end{itemize}

è£½ä½œã®å‹•æ©Ÿã‚„ä½œæ¥­éŽç¨‹ãªã©ã«ã¤ã„ã¦ã¯ï¼Œè©³ã—ãã¯\cite{h7k}ã‚’å‚ç…§ã—ã¦æ¬²ã—ã„ã‘
ã‚Œã©ã‚‚ï¼Œå¤§é›‘æŠŠã«è¨€ã†ã¨ï¼Œå‹•æ©Ÿã¯ä»¥ä¸‹ã®ã‚ˆã†ã«è¦ç´„ã§ãã‚‹ï¼Ž
\begin{itemize}
\item \pTeX ã¯ï¼Œ\TeX ãŒæŒã£ã¦ã„ã‚‹ã€Œãƒ¬ã‚¸ã‚¹ã‚¿1ç¨®é¡žã«ã¤ã256å€‹ã¾ã§ã€ã¨ã„ã†
      åˆ¶é™ã‚’ã²ããšã£ã¦ãŠã‚Šï¼Œç¾çŠ¶ã§ã‚‚éžå¸¸ã«å¤šæ•°ã®ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã‚’èª­ã¿è¾¼ã¾ã›ãŸ
      ã‚Šã™ã‚‹ã¨åˆ¶é™ã«ã¶ã¡å½“ãŸã£ã¦ã—ã¾ã†ï¼Ž
\item ä¸€æ–¹ï¼Œ\eTeX æ‹¡å¼µã§ã¯ã“ã‚ŒãŒã€Œãƒ¬ã‚¸ã‚¹ã‚¿1ç¨®é¡žã«ã¤ã32768å€‹ã¾ã§ã€ã¨ç·©å’Œ
      ã•ã‚Œã¦ãŠã‚Šï¼Œæ¬§æ–‡ã§æ¨™æº–ã¨ãªã£ã¦ã„ã‚‹\hologo{pdfTeX}ã‚„ãã®å¾Œç¶™ã®\hologo{LuaTeX}ï¼Œ
      åŠã³\hologo{XeTeX}ã§ã‚‚
      \eTeX ã®æ©Ÿèƒ½ãŒå–ã‚Šè¾¼ã¾ã‚Œã¦ã„ã‚‹ï¼Ž
\item ãã†ã™ã‚‹ã¨ï¼Œ\pTeX ã&nbsp;ã‘ãŒåˆ¶é™ã‚’ãƒ¬ã‚¸ã‚¹ã‚¿åˆ¶é™ã‚’å¼•ããšã£ã¦ã„ã‚‹ã®ã¯ä¸–ç•Œ
      ã‹ã‚‰å–ã‚Šæ®‹ã•ã‚Œã‚‹ã“ã¨ã«ãªã‚‹ã®ã§ã¯ãªã„ã‹ï¼Ž
\end{itemize}

\section{\eTeX æ‹¡å¼µã«ã¤ã„ã¦}
å‰ã«è¿°ã¹ãŸã‚ˆã†ã«ï¼Œ\eTeX ã¯\TeX ã®æ‹¡å¼µã®ä¸€ã¤ã§ã‚ã‚‹ï¼Ž\eTeX ã®ãƒžãƒ‹ãƒ¥ã‚¢ãƒ«
\cite{etexman}ã«ã¯ï¼Œé–‹ç™ºç›®çš„ãŒä»¥ä¸‹ã®ã‚ˆã†ã«è¿°ã¹ã‚‰ã‚Œã¦ã„ã‚‹ï¼Ž

\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 ãŒã©ã†ãªã£ãŸã®ã‹åƒ•ã¯çŸ¥ã‚‰ãªã„ï¼Žã—ã‹ã—ï¼Œå°‘ãªãã¨ã‚‚\eTeX æ‹¡å¼µè‡ªä½“ã¯å®Ÿç”¨
çš„ãªç‰©ã§ã‚ã‚Šï¼Œãã®ã›ã„ã‹$\aleph$~(Aleph), \hologo{pdfTeX}, \hologo{XeTeX}ãªã©ã®ä»–ã®æ‹¡å¼µ
ã«ã‚‚ãƒžãƒ¼ã‚¸ã•ã‚Œã¦ãŠã‚Šï¼Œã»ã¨ã‚“ã©ã®äººãŒ\eTeX æ‹¡å¼µã‚’ä½¿ã†ã“ã¨ãŒã§ãã‚‹ã‚ˆã†ã«ãªã£
ã¦ã„ã‚‹\footnote{\LaTeXe~2017-01-01ã‹ã‚‰ã¯ï¼Œ\LaTeXe ã®ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆä½œæˆæ®µéšŽã‹ã‚‰
\eTeX æ‹¡å¼µãŒå¿…é&nbsp;ˆã¨ãªã£ãŸ(\cite{l2e26})ï¼Ž}ï¼Ž

\eTeX æ‹¡å¼µã§è¿½åŠ&nbsp;ã•ã‚Œã‚‹æ©Ÿèƒ½ã«ã¤ã„ã¦ï¼Œè©³ã—ãã¯\cite{etexman}ã‚’å‚ç…§ã—ã¦æ¬²ã—
ã„ãŒï¼Œ\cite{h7k}ä¸­ã®4.2ç¯€ã€Œ\eTeX ã®æ©Ÿèƒ½ã€ã‹ã‚‰ä¸€éƒ¨æ”¹å¤‰ã—ã¦å¼•ç”¨ã™ã‚‹ï¼Ž

\begin{quotation}
\eTeX ã«ã¯Compatibility modeã¨Extended modeã®2ã¤ãŒå­˜åœ¨ã—ï¼Œå‰è€…ã§ã¯\eTeX
ç‰¹æœ‰ã®æ‹¡å¼µã¯ç„¡åŠ¹ã«ãªã‚‹ã®ã§ã¤ã¾ã‚‰ãªã„ï¼Žå¾Œè€…ãŒãŠã‚‚ã—ã‚ã„ï¼Ž

æ‹¡å¼µæ©Ÿèƒ½ã‚’ä½¿ã†ã«ã¯ãƒ•ã‚¡ã‚¤ãƒ«åã‚’æ¸¡ã™ã¨ãã«\texttt{*}ã‚’ã¤ã‘ã‚‹ã‹
ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã¨ã—ã¦\texttt{-etex}ã‚¹ã‚¤ãƒƒãƒã‚’ã¤ã‘ã‚Œã°ã„ã„
ãŒï¼Œ\eTeX æ‹¡å¼µã«é–¢ã‚ã‚‹è¿½åŠ&nbsp;ãƒžã‚¯ãƒ­ã¯å½“ç„¶ãªãŒã‚‰ãã‚Œã&nbsp;ã‘ã§
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ã‹ãªï¼‰ã§ã¯è‡ªå‹•çš„ã«è¿½åŠ&nbsp;ãƒžã‚¯ãƒ­ã§ã‚ã‚‹\texttt{etex.src}ãŒå‘¼ã°ã‚Œã‚‹ï¼Ž\LaTeX ä¸‹ã§ã¯
ã¡ã‚‡ã†ã©\texttt{etex.src}ã«å¯¾å¿œã—ãŸ\Pkg{etex}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã‚’èª­ã¿è¾¼ã‚€å¿…è¦ãŒã‚ã‚‹ï¼Ž

\paragraph{ãƒ¬ã‚¸ã‚¹ã‚¿ã®å¢—åŠ&nbsp;}
æœ€åˆã«è¿°ã¹ãŸã‚ˆã†ã«ï¼Œ\TeX ã§ã¯6ç¨®é¡žã®ãƒ¬ã‚¸ã‚¹ã‚¿ãŒå„256å€‹ãšã¤åˆ©ç”¨ã§ãã‚‹ï¼Žãã‚Œ
ãžã‚Œã®ãƒ¬ã‚¸ã‚¹ã‚¿ã«ã¯\.{dimen75}ãªã©ã®ã‚ˆã†ã«0--255ã®ç•ªå·ã§æŒ‡å®šã§ãã‚‹
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ã„ãã¤ã‹ã¯ç‰¹æ®Šãªç”¨é€”ã«ç”¨ã„ã‚‰ã‚Œã‚‹ï¼ˆä¾‹ãˆã°\.{count0}ã¯ãƒšãƒ¼ã‚¸ç•ªå·ãªã©ã®
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\eTeX ã§ã¯ï¼Œè¿½åŠ&nbsp;ã®ãƒ¬ã‚¸ã‚¹ã‚¿ã¨ã—ã¦ç•ªå·ã§è¨€ã†ã¨256--32767ãŒä½¿ç”¨ã§ãã‚‹ã‚ˆ
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\paragraph{å¼ãŒä½¿ç”¨å¯èƒ½ã«}
\TeX ã«ãŠã‘ã‚‹æ•°é‡ã®è¨ˆç®—ã¯å……å®Ÿã—ã¦ã„ã‚‹ã¨ã¯è¨€ã„é›£ã„ï¼Žä¾‹ãˆã°ï¼Œ
\[
\hbox{|\dimen123|}\leftarrow\frac12(\hbox{|\dimen42|}+\hbox{|\@tempdima|})
\]
ã¨ã„ã†è¨ˆç®—ã‚’å…ƒã€…ã®\TeX ã§æ›¸ã“ã†ã¨ã™ã‚‹ã¨ï¼Œ
\begin{verbatim}
\dimen123=\dimen42
\advance\dimen123by\@tempdima
\dimen123=0.5\@tempdima
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æ¼”ç®—ãŒç”¨æ„ã•ã‚Œã¦ã„ãªã„çŠ¶æ…‹ã«ãªã£ã¦ã„ã‚‹ï¼ˆä¸Šã®ã‚³ãƒ¼ãƒ‰ã®ã‚ˆã†ã«ï¼Œ$d_2\mathrel{+\!\!=}
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ã†ãªæ•°å¼ã®è¡¨ç¾ãŒä½¿ãˆã‚‹ã‚ˆã†ã«ãªã£ãŸï¼Žä¸Šã®PDFã§ã¯å®Ÿä¾‹ã¨ã—ã¦
\begin{verbatim}
\ifdim \dimexpr (2pt-5pt)*\numexpr 3-3*13/5\relax + 34pt/2&lt;\wd20
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ãŒæ›¸ã‹ã‚Œã¦ã„ã‚‹ï¼Žã“ã‚Œã¯ï¼Œ\def\mpt{\,\mathrm{pt}}
{\catcode`\&lt;12\[
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+\frac{34\mpt}{2}&lt;\text{{\tt \char'134 box20}ã®å¹…}
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ãŒçœŸã‹å½ã‹ã‚’åˆ¤å®šã—ã¦ã„ã‚‹ã“ã¨ã«ãªã‚‹ï¼Ž

\paragraph{\.{middle} primitive}
\TeX ã«\.{left}, \.{right}ã¨ã„ã†primitiveãŒã‚ã‚Šï¼Œãã‚Œã‚’ä½¿ãˆã°æ‹¬
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ã•ã‚‰ã«\.{middle}\indcs{middle}\ primitiveãŒè¿½åŠ&nbsp;ã•ã‚ŒãŸï¼Ž

å…·ä½“ä¾‹ã‚’è¿°ã¹ã‚‹ï¼Ž
{\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\}}
\[ \set{n+\frac12}{n\in \omega} \eset{n+\frac12}{n\in \omega} \]}
ã“ã‚Œã¯ä»¥ä¸‹ã®sourceã§å‡ºåŠ›ã—ãŸã‚‚ã®ã§ã‚ã‚‹ï¼š

{\narrowbaselines
\begin{verbatim}
\def\set#1#2{\setbox0=\hbox{$\displaystyle #1,#2$}%
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\def\eset#1#2{\left\{\, #1 \,\middle|\, #2 \,\right\}}
\[ \set{n+\frac12}{n\in \omega} \eset{n+\frac12}{n\in \omega} \]
\end{verbatim}}
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\.{left}, \.{right}ã®çµ„ã§å®Ÿç¾ã•ã›ãªã‘ã‚Œã°ãªã‚‰ãšï¼Œãã®ãŸã‚ã«{\catcode`\|=12$|$}ã®
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\paragraph{\TeXXeT\ \textmd{(\texttt{TeX-{}-XeT})}}
left-to-rightã¨right-to-leftã‚’æ··æ¤ã§ãã‚‹ã¨ã„ã†æ©Ÿèƒ½ã§ã‚ã‚‹ã‚‰ã—ã„ï¼Ž
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\medskip

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\end{quotation}

\epTeX ã§ã¯ã“ã“ã«è¿°ã¹ãŸä»£è¡¨çš„ãªæ©Ÿèƒ½ã‚’å«ã‚ï¼Œã»ã¨ã‚“ã©ã™ã¹ã¦ã®æ©Ÿèƒ½ã‚’å®Ÿè£…ã—ã¦
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\footnote{%
  ã•ã‚‰ã«ï¼Œãƒ¬ã‚¸ã‚¹ã‚¿ã®å€‹æ•°ã«ã¤ã„ã¦ã¯ï¼Œå„ç¨®é¡ž65536å€‹ã¾ã§ä½¿ãˆã‚‹ã‚ˆã†ã«ãªã£ã¦ã„ã‚‹ï¼ˆæ¬¡ç¯€å‚ç…§ï¼‰ï¼Ž
}ï¼ŽãŸã&nbsp;ï¼Œ\TeXXeT ã‚’å’Œæ–‡ã§ä½¿ã†ã¨ç´„ç‰©
ã®ä½ç½®ãŒãšã‚ŒãŸã‚Šç©ºç™½ãŒãŠã‹ã—ã‹ã£ãŸã‚Šã™ã‚‹ã‘ã‚Œã©ã‚‚ï¼Œãã“ã®ä¿®æ­£ã¯å¤§å¤‰ã«æ€ãˆ
ã‚‹ã—ï¼Œè‹¦åŠ´ã—ã¦å®Ÿè£…ã™ã‚‹æ„å‘³ãŒã‚ã‚‹ã®ã‹ç–‘å•ãªã®ã§æ”¾ç½®ã—ã¦ã„ã‚‹ï¼Ž

ä»¥ä¸‹ï¼Œ\eTeX æ‹¡å¼µã‚’\pTeX æ‹¡å¼µã¨ãƒžãƒ¼ã‚¸ã™ã‚‹ã«ã‚ãŸã£ã¦èª¿æ•´ã—ãŸç®‡æ‰€ã‚’è¿°ã¹ã‚‹ï¼Ž
\begin{cslist}
 \csitem[\.{lastnodetype} (read-only integer)]
  \pTeX æ‹¡å¼µã§ã¯ï¼Œ\TeX ã¨æ¯”è¼ƒã—ã¦\node{dir_node}ã¨\node{disp_node}ã¨ã„ã†2ç¨®é¡žã®ãƒŽãƒ¼ãƒ‰ãŒ
  è¿½åŠ&nbsp;ã•ã‚ŒãŸï¼Žå‰è€…ã¯ï¼Œç¾åœ¨ã®ãƒªã‚¹ãƒˆã®ä¸­ã«é•ã†çµ„æ–¹å‘ã®boxã‚’æŒ¿å…¥ã™ã‚‹éš›ã«å¯¸æ³•ã‚’è£œæ­£ã™ã‚‹ãŸã‚ã«ä½œã‚‰ã‚Œï¼Œ
  \.{hbox}ã‚„\.{vbox}ã®ã‚³ãƒ³ãƒ†ãƒŠã¨ãªã£ã¦ã„ã‚‹ï¼Ž
  ã¾ãŸå¾Œè€…ã¯ï¼Œæ¬§æ–‡æ–‡å­—ã®ãƒ™ãƒ¼ã‚¹ãƒ©ã‚¤ãƒ³è£œæ­£ã®ãŸã‚ã«ä½¿ã‚ã‚Œã‚‹ï¼Ž

  \epTeX~110102ã¾ã§ã¯ã“ã‚Œã‚‰ã®ãƒŽãƒ¼ãƒ‰ã‚‚\.{lastnodetype}ã®å€¤ã¨ã—ã¦å‡ºåŠ›ã•ã›ã‚‹ã‚ˆã†ã«ã—ãŸï¼Ž
  ã—ã‹ã—ï¼Œä¸¡è€…ã¨ã‚‚ã«\epTeX ãŒè‡ªå‹•çš„ã«æŒ¿å…¥ã™ã‚‹ï¼ˆãƒ¦ãƒ¼ã‚¶ãƒ¼ãŒæ„è­˜ã™ã‚‹å¿…è¦ã¯ãªã„ï¼‰ãƒŽãƒ¼ãƒ‰ã§ã‚ã‚‹ã“ã¨ã‹ã‚‰ï¼Œ
  \epTeX~110227ä»¥é™ã§ã¯\node{dir_node}ã¨\node{disp_node}ã¯
  \.{lastnodetype}ã®å¯¾è±¡ã¨ã™ã‚‹ã€Œæœ€å¾Œã®ãƒŽãƒ¼ãƒ‰ã€ã¨ã¯ãªã‚‰ãªã„ã‚ˆã†ã«ã—ã¦ã„ã‚‹
  \footnote{%
    æœ€å¾Œã®ãƒŽãƒ¼ãƒ‰ãŒ\node{dir_node}ã§ã‚ã£ãŸå&nbsp;´åˆï¼Œ\.{lastnodetype}ã¯ãã®ãƒŽãƒ¼ãƒ‰ãŒæ&nbsp;¼ç´ã—ã¦ã„ã‚‹
    \node{hlist_node}ã‹\node{vlist_node}ã®ç¨®é¡žã‚’è¿”ã™ï¼Ž
  }ï¼Ž\\
  \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)]
  æ¡ä»¶åˆ¤æ–­æ–‡ã¨ãã‚Œã‚’è¡¨ã™æ•°å­—ã¨ã®å¯¾å¿œã¯ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã£ã¦ã„ã‚‹
  ï¼ˆ\epTeX~190709ä»¥é™ï¼‰ï¼Ž
  21,~22ã¯\hologo{pdfTeX}ç”±æ¥ã®æ¡ä»¶åˆ¤æ–­æ–‡ï¼ˆå¾Œè¿°ï¼‰ï¼Œ
  23--32ãŒ\pTeX æ‹¡å¼µã§è¿½åŠ&nbsp;ã•ã‚ŒãŸæ¡ä»¶åˆ¤æ–­æ–‡ã«å¯¾å¿œã™ã‚‹ï¼Ž\\
  \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)]
  åŸºæœ¬çš„ã«ãƒ•ã‚©ãƒ³ãƒˆå†…ã®æ–‡å­—ã®å¯¸æ³•ã‚’å†…éƒ¨é•·ã•ã¨ã—ã¦è¿”ã™å‘½ä»¤ã§ã‚ã‚‹ãŒï¼Œ
  æ¬§æ–‡ãƒ•ã‚©ãƒ³ãƒˆã¨å’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆã‚’åˆ¤åˆ¥ã—ï¼Œãã‚Œã«å¿œã˜ã¦å‡¦ç†ãŒåˆ†ã‹ã‚Œã‚‹ï¼Ž
  ãã‚Œã«ä¼´ã„ï¼Œè¨±å®¹ã•ã‚Œã‚‹å¼•æ•°ç¯„å›²ã¨æ„å‘³ãŒç•°ãªã‚‹ã“ã¨ã«æ³¨æ„
  ï¼ˆ\epTeX~190709ä»¥é™ï¼‰ï¼Ž
  ä»¥ä¸‹ï¼Œ|??|ã¯|wd|, |ht|, |dp|, |ic|ã®ã„ãšã‚Œã‹ã‚’è¡¨ã™ï¼Ž
  \begin{itemize}
    \item å’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆã®å&nbsp;´åˆï¼š\.{fontchar??} &lt;Japanese font&gt; &lt;number&gt;\\
      &lt;Japanese font&gt;ã‚’$f$ï¼Œ&lt;number&gt;ã‚’$c$ã¨ãŠãã¨ï¼Œ
      \begin{itemize}
        \item $c \geq 0$ã®å&nbsp;´åˆã¯ï¼Œ$c$ã‚’\emph{æ–‡å­—ã‚³ãƒ¼ãƒ‰}ã¨ã¿ãªã™ï¼Ž
          $c$ãŒå’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦æœ‰åŠ¹ã§ã‚ã‚Œã°ï¼Œ
          å’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆ$f$ã«ãŠã‘ã‚‹æ–‡å­—ã‚³ãƒ¼ãƒ‰$c$ã®å’Œæ–‡æ–‡å­—ã®å¯¸æ³•å€¤ã‚’è¿”ã™ï¼Ž
          å’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦ç„¡åŠ¹ã§ã‚ã‚Œã°0\,ptã‚’è¿”ã™ï¼Ž
        \item $c &lt; 0$ã®å&nbsp;´åˆã¯ï¼Œ$-(c+1)$ã‚’\emph{æ–‡å­—ã‚¿ã‚¤ãƒ—}ã¨ã¿ãªã™ï¼Ž
          å’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆ$f$ã«æ–‡å­—ã‚¿ã‚¤ãƒ—$-(c+1)$ãŒå®šç¾©ã•ã‚Œã¦ã„ã‚Œã°ãã®å¯¸æ³•å€¤ã‚’è¿”ã—ï¼Œ
          æœªå®šç¾©ã§ã‚ã‚Œã°0\,ptã‚’è¿”ã™ï¼Ž
      \end{itemize}
    \item æ¬§æ–‡ãƒ•ã‚©ãƒ³ãƒˆã®å&nbsp;´åˆï¼š\.{fontchar??} &lt;font&gt; &lt;8-bit number&gt;\\
      ã‚ªãƒªã‚¸ãƒŠãƒ«ã®\eTeX ã¨åŒã˜æŒ™å‹•ã§ã‚ã‚‹ï¼Žã™ãªã‚ã¡ï¼Œ
      å¼•æ•°ã«$c \geq 256$ã‚„$c &lt; 0$ã‚’ä¸Žãˆã‚‹ã¨
      \verb+! Bad character code (256).+
      ã®ã‚ˆã†ã«ã‚¨ãƒ©ãƒ¼ãŒå‡ºã‚‹\footnotemark ï¼Ž
  \end{itemize}

  \addtocounter{footnote}{-2}
 \csitem[\.{iffontchar} &lt;font&gt; &lt;number&gt;]
  \begin{itemize}
    \item å’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆã®å&nbsp;´åˆï¼š \.{iffontchar} &lt;Japanese font&gt; &lt;number&gt;\\
      &lt;Japanese font&gt;ã‚’$f$ï¼Œ&lt;number&gt;ã‚’$c$ã¨ãŠãã¨ï¼Œ
      \begin{itemize}
        \item $c \geq 0$ã®å&nbsp;´åˆã¯$c$ã‚’\emph{æ–‡å­—ã‚³ãƒ¼ãƒ‰}ã¨ã¿ãªã—ï¼Œ
          $c$ãŒå’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦æœ‰åŠ¹ã‹ã©ã†ã‹ã‚’åˆ¤å®šã™ã‚‹
          \footnote{\pTeX ã§ã¯ã€Œä»»æ„ã®å’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆã«ã¯ï¼Œå’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦æœ‰åŠ¹ãª
          å…¨ã¦ã®æ–‡å­—ãŒå­˜åœ¨ã™ã‚‹ã€ã¨ã„ã†æ‰±ã„ã§ã‚ã‚‹ãŸã‚ï¼Œå’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆ$f$ã«ã‚ˆã‚‰ãªã„ï¼Ž}ï¼Ž
        \item $c &lt; 0$ã®å&nbsp;´åˆã¯$-(c+1)$ã‚’\emph{æ–‡å­—ã‚¿ã‚¤ãƒ—}ã¨ã¿ãªã—ï¼Œ
          å’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆ$f$ã«æ–‡å­—ã‚¿ã‚¤ãƒ—$-(c+1)$ãŒå®šç¾©ã•ã‚Œã¦ã„ã‚‹ã‹ã©ã†ã‹ã‚’åˆ¤å®šã™ã‚‹ï¼Ž
      \end{itemize}
    \item æ¬§æ–‡ãƒ•ã‚©ãƒ³ãƒˆã®å&nbsp;´åˆï¼š \.{iffontchar} &lt;font&gt; &lt;8-bit number&gt;\\
      ã‚ªãƒªã‚¸ãƒŠãƒ«ã®\eTeX ã¨åŒã˜æŒ™å‹•ã§ã‚ã‚‹ï¼Žã™ãªã‚ã¡ï¼Œ
      å¼•æ•°ã«$c \geq 256$ã‚„$c &lt; 0$ã‚’ä¸Žãˆã‚‹ã¨
      \verb+! Bad character code (256).+
      ã®ã‚ˆã†ã«ã‚¨ãƒ©ãƒ¼ãŒå‡ºã‚‹\footnotemark ï¼Ž
  \end{itemize}
\end{cslist}
  \footnotetext{\epTeX~241020 (\upTeX~2.00, \TeX~Live~2025)ä»¥é™ï¼Œ
    \.{kcatcode}ã®å€¤ãŒ14ã®ã¨ãã®æ¬§æ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®æœ‰åŠ¹ãªæ–‡å­—ã‚³ãƒ¼ãƒ‰ã®æœ€å¤§å€¤ã¯0x2E7Fã§ã‚ã‚Šï¼Œ
    $c \geq \textrm{0x2E80}$ã§ã‚¨ãƒ©ãƒ¼ãŒå‡ºã‚‹(\cite{tjb170})ï¼Ž}
\begin{dangerous}
  ä¸Šè¨˜ã§ã€Œå’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦æœ‰åŠ¹ã‹ã©ã†ã‹ã€ã¯ï¼Œé–¢æ•°|is_char_kanji|ã‚’å‚ç…§ï¼Ž
  ã“ã®é–¢æ•°ã¯å†…éƒ¨ã‚³ãƒ¼ãƒ‰ã«ã‚ˆã£ã¦ç•°ãªã‚‹ãŸã‚ï¼Œãƒžã‚¯ãƒ­ã§å®Ÿè£…ã™ã‚‹ã®ã¯é¢å€’ã§ã‚ã‚‹ãŒï¼Œ
  \epTeX~190709ä»¥é™ã§ã¯\.{iffontchar}ã§å®¹æ˜“ã«å®Ÿç¾ã§ãã‚‹ï¼Ž
  ãªãŠï¼Œå†…éƒ¨Unicodeã®\upTeX ã§ã¯0ä»¥ä¸Š0xFFFFFFä»¥ä¸‹ã®å€¤ãŒå’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦
  æœ‰åŠ¹ã§ã‚ã‚‹ï¼Ž% https://github.com/texjporg/tex-jp-build/issues/160
\end{dangerous}


\section{\OMEGA ç”±æ¥ã®æ©Ÿèƒ½ï¼ˆæ—§åç§°ï¼š\texttt{FAM256}ãƒ‘ãƒƒãƒï¼‰}
\epTeX ã«ã¯ï¼ŒæŽ²ç¤ºæ¿\TeX\ Q\ \&amp;\ Aã®å±±æœ¬æ°ã®æ›¸ãè¾¼ã¿
\cite{yamamoto}ã«åˆºæ¿€ã•ã‚Œã¦ä½œã£ãŸï¼Œæœ¬ç¯€ã§èª¬æ˜Žã™ã‚‹\OMEGA ã®ä¸€éƒ¨
æ©Ÿèƒ½ã‚’ä½¿ãˆã‚‹ã‚ˆã†ã«ã™ã‚‹ãƒ‘ãƒƒãƒãŒå­˜åœ¨ã™ã‚‹ï¼Ž
ã“ã‚Œã¯\texttt{FAM256}ãƒ‘ãƒƒãƒã¨å‘¼ã°ã‚Œï¼Œä»Šã¾ã§ã¯
ã€Œ\epTeX æœ¬ä½“ã¨ã¯ä¸€å¿œåˆ¥æ‰±ã„ã§ï¼Œ\epTeX ã®é…å¸ƒï¼ŒåŠã³
W32\TeX, \TeX~Liveã®ãƒã‚¤ãƒŠãƒªã§ã¯æ¨™æº–ã§æœ‰åŠ¹ã«ãªã£ã¦ã„ãŸã&nbsp;ã‘ã€ã¨ã„ã†æ‰±ã„ã§ã‚ã£ãŸãŒï¼Œ
ãã‚Œã§ã¯åˆ©ç”¨è€…ãŒæ··ä¹±ã™ã‚‹ã®ã§
\emph{ã€Œ\texttt{FAM256}ãƒ‘ãƒƒãƒã¯\epTeX~160201ä»¥é™ã‹ã‚‰ã¯åˆ‡ã‚Šé›¢ã•ãªã„ã€}
ã¨ã“ã“ã§å®£è¨€ã™ã‚‹ï¼Ž
æœ¬ãƒ‰ã‚­ãƒ¥ãƒ¡ãƒ³ãƒˆã®æœ€å¾Œã®ãƒšãƒ¼ã‚¸\footnote{ãŸã&nbsp;ã—ï¼Œã‚½ãƒ¼ã‚¹ãƒ•ã‚¡ã‚¤ãƒ«ã§è¨€ãˆã°
\texttt{fam256d.tex}ï¼ˆæœ¬æ–‡ï¼‰ã¨\texttt{fam256p.tex}ï¼ˆpreambleéƒ¨ï¼‰ã«å¯¾å¿œã™ã‚‹ï¼Ž}ã«
ã¡ã‚‡ã£ã¨ã—ãŸã‚µãƒ³ãƒ—ãƒ«ã‚’è¼‰ã›ã¦ã‚ã‚‹ï¼Ž

æœ¬ç¯€ã§è¿°ã¹ã‚‹è¿½åŠ&nbsp;æ©Ÿèƒ½ã¯extended modeã§ãªãã¦ã‚‚æœ‰åŠ¹ã«ãªã£ã¦ã„ã‚‹ï¼Ž
ãŸã&nbsp;ã—ï¼Œå¾Œã«èª¬æ˜Žã™ã‚‹ã€Œãƒ¬ã‚¸ã‚¹ã‚¿ãŒå„ç¨®é¡ž65536å€‹ã¾ã§ã€ã¯ï¼Œ
extended modeã®æ™‚ã«é™ã‚Šæœ‰åŠ¹ã«ãªã‚‹ï¼Ž

\paragraph{æ•°å¼ãƒ•ã‚©ãƒ³ãƒˆåˆ¶é™ã®ç·©å’Œ}
\OMEGA ã®å¤§ããªç‰¹å¾´ã¨ã—ã¦ã¯ï¼Œ\TeX å†…éƒ¨ã®ãƒ‡ãƒ¼ã‚¿æ§‹é€&nbsp;ã‚’æ”¹å¤‰ã—
\footnote{è©³ã—ãã¯\texttt{texk/web2c/texmfmem.h}ä¸­ã®å…±ç”¨ä½“%
\texttt{memoryword}ã®å®šç¾©ã‚’å‚ç…§ï¼Žå¤§é›‘æŠŠã«è¨€ã†ã¨ï¼Œ
1ã¤ã®ã€Œãƒ¡ãƒ¢ãƒªè¦ç´&nbsp;ã€ã«2ã¤ã®32\,bitæ•´æ•°ã‚’åŒæ™‚ã«æ&nbsp;¼ç´ã§ãã‚‹ã‚ˆã†ã«ãªã£ã¦ã„ã‚‹ï¼Ž
ãªãŠï¼Œå°‘ãªãã¨ã‚‚tetex3ä»¥é™ã§ã¯\texttt{memoryword}ã¯8ãƒã‚¤ãƒˆã§ã‚ã‚‹ãŒï¼Œ
\TeX 82ã§ã¯1ã¤ã®ã€Œãƒ¡ãƒ¢ãƒªè¦ç´&nbsp;ã€ã‚’2ã¤ã®32\,bitæ•´æ•°ã¨ã—ã¦ä½¿ã†ã“ã¨ã¯ã—ã¦ã„ãªã„ï¼Ž
%  [TODO] æ­£ç¢ºã«ã¯ "big TeX" ã‹ã‚‰ã&nbsp;ãŒï¼Œ
%  ãƒ»big TeX ã¯ã„ã¤ã‹ã‚‰ã‚ã‚‹ã®ã‹ï¼Ÿ ãƒ»ãã‚ŒãŒæ¨™æº–ã«ãªã£ãŸã®ã¯ã„ã¤ã‹ã‚‰ï¼Ÿ
}ï¼Œ
\TeX ã«å¾“æ¥ã‹ã‚‰å­˜åœ¨ã—ã¦ã„ãŸã„ãã¤ã‹ã®ã€Œ256å€‹åˆ¶é™ã€ã‚’$2^{16}$å€‹ã«ã¾ã§ç·©å’Œã—ãŸã“ã¨ãŒæŒ™ã’ã‚‰ã‚Œã‚‹ï¼Ž
åŒæ§˜ã«ï¼Œ\OMEGA ã§ã¯ï¼ˆ\cite{yamamoto}ã«ã‚‚ã‚ã‚‹ã‚ˆã†ã«ï¼‰æ•°å¼ãƒ•ã‚©ãƒ³ãƒˆã‚’
åŒæ™‚ã«256å€‹ã¾ã§ç”¨ã„ã‚‹ã“ã¨ãŒã§ãï¼Œå„ãƒ•ã‚©ãƒ³ãƒˆã‚‚65536æ–‡å­—ã¾ã§è¨±ã•ã‚Œã‚‹ã‚ˆã†ã«ãªã£ã¦ã„ã‚‹ï¼Ž

\medskip

\epTeX ã§ã¯ï¼Œä¸­é€”åŠç«¯ã&nbsp;ãŒï¼Œæ•°å¼ãƒ•ã‚©ãƒ³ãƒˆ1ã¤ã‚ãŸã‚Š
ã®ä½¿ç”¨å¯èƒ½æ–‡å­—æ•°ã¯256å€‹ã®ã¾ã¾ã§ï¼ŒåŒæ™‚ã«æ•°å¼ãƒ•ã‚©ãƒ³ãƒˆã‚’256å€‹ã¾ã§ä½¿ãˆã‚‹ã‚ˆã†
ã«ã—ã¦ã„ã‚‹ï¼ŽåŸºæœ¬çš„ã«ã¯\OMEGA ã¨åŒæ§˜ã®æ–¹æ³•ã‚’ç”¨ã„ã¦ã„ã‚‹ãŒï¼Œ
å†…éƒ¨ã§ã®ãƒ‡ãƒ¼ã‚¿æ§‹é€&nbsp;ã«é•ã„ãŒã‚ã‚‹ï¼ˆæ•°å­—ã¯ã™ã¹ã¦bitå¹…ï¼‰ï¼š
\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;}
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\section{\epTeX ã®è¿½åŠ&nbsp;ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–}

\subsection{ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç•ªå·}
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\subsection{\.{lastnodechar}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–}
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 \csitem[\.{lastnodechar} (read-only integer)]
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\end{verbatim}
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abcfi\the\lastnodechar, abc\char"1C \the\lastnodechar
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\begin{verbatim}
### yoko direction, horizontal mode entered at line 465
\hbox(0.0+0.0)x9.24683
\JY1/hmc/m/it/10 ã“
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\penalty 10000(for kinsoku)
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\glue(refer from jfm) 4.62341 minus 4.62341
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\end{dangerous}

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\epTeX å†…éƒ¨ã§ä½¿ç”¨ã—ã¦ã„ã‚‹subtypeã®å€¤ã‚’ãã®ã¾ã¾è¿”ã™ã&nbsp;ã‘ã§ã‚ã‚‹ã®ã§ï¼Œ
å…·ä½“çš„ãªæ•°å€¤ã¯å°†æ¥å¤‰ã‚ã‚‹æã‚ŒãŒã‚ã‚‹ï¼Žãã®ãŸã‚ï¼Œ
\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}
ã®ã‚ˆã†ã«\TeX ã‚½ãƒ¼ã‚¹å†…ã‹ã‚‰å–å¾—ãƒ»ä¿å­˜ã—ã¦ãŠãã“ã¨ãŒæœ›ã¾ã—ã„ï¼Ž

\medskip
ãªãŠ\pLaTeX~2018-04-01ä»¥é™ã§ã¯ï¼Œä¸Šè¨˜ã®ã‚³ãƒ¼ãƒ‰ã‚’åˆ©ç”¨ã—ã¦
ã€Œæœ€å¾Œã®ã‚°ãƒ«ãƒ¼ãŒJFMã‚°ãƒ«ãƒ¼ã®ã¨ãã&nbsp;ã‘æ¶ˆã™ã€å‘½ä»¤|\removejfmglue|ã‚’
\begin{verbatim}
\protected\def\removejfmglue{%
  \ifnum\lastnodetype=\pltx@gluetype\relax
    \ifnum\lastnodesubtype=\pltx@jfmgluesubtype\relax
      \unskip
    \fi\fi}
\end{verbatim}
ã¨ã—ã¦å®šç¾©ã—ã¦ã„ã‚‹ï¼Ž

\paragraph{\epTeX~210701ä»¥é™ã®æ³¨æ„}
ä¸Šã§ã‚‚è¿°ã¹ãŸã‚ˆã†ã«ï¼Œæ•°å¼å†…ã®ãƒŽãƒ¼ãƒ‰ã«ã¤ã„ã¦ã¯subtypeå€¤ã¯ã»ã¨ã‚“ã©æ„å‘³ã‚’æŒãŸãªã„ã®ã§ï¼Œ
ã“ã‚Œã‚‰ã«å¯¾ã™ã‚‹\.{lastnodesubtype}ã§ã¯subtypeå€¤ã§ãªãä»¥ä¸‹ã®å€¤ã‚’è¿”ã™ã‚ˆã†ã«ã—ãŸï¼š
\begin{description}
  \item[æœ€å¾Œã®ãƒŽãƒ¼ãƒ‰ãŒæ•°å¼å†…ã®ãƒŽãƒ¼ãƒ‰($\.{lastnodetype}=15$)]
  \begin{multilist}{3}{\hfil\hskip1.5em#:&amp;\quad#\hfil}
    \item 0&amp;æ˜Žç¤ºçš„ãªã‚¹ã‚¿ã‚¤ãƒ«æŒ‡å®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;åˆ†æ•°ï¼ˆ\.{over}ãªã©ï¼‰\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}.}
  ãªãŠï¼Œ\verb+\left...[\middle]...\right+ã®ç›´å¾Œã§\.{lastnodesubtype}ã‚’ä½¿ç”¨ã—ã¦ã‚‚ï¼Œ
  \verb+\left...[\middle]...\right+å…¨ä½“ãŒä¸€ã¤ã®å†…éƒ¨æ•°å¼(\.{mathinner})ã¨ãªã‚‹ã®ã§ï¼Œ
  \.{right}ã«ã€Œå¯¾å¿œã™ã‚‹ã€\.{lastnodesubtype}ã®å€¤ã¯å–å¾—ã§ããªã„ï¼Ž
  \.{over}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ãªã©ã«ã‚ˆã‚‹åˆ†æ•°ã«ã¤ã„ã¦ã‚‚é¡žä¼¼ã®äº‹æƒ…ãŒã‚ã‚‹ï¼Ž
\end{description}


\subsection{\.{epTeXinputencoding}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–}
ç¾åœ¨èª­ã¿è¾¼ã‚“ã§ã„ã‚‹ãƒ•ã‚¡ã‚¤ãƒ«ã®æ–‡å­—ã‚³ãƒ¼ãƒ‰ã‚’åˆ‡ã‚Šæ›¿ãˆã‚‹ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã§ã‚ã‚Šï¼Œ
2016/02/01ã«é˜¿éƒ¨ç´€è¡Œã•ã‚“ã«ã‚ˆã£ã¦å®Ÿè£…ã•ã‚ŒãŸï¼Žè©³ç´°ã¯å®Ÿè£…è€…ã®è§£èª¬è¨˜äº‹
\cite{eptexinputenc}ã‚’å‚ç…§ã—ã¦ã»ã—ã„ãŒï¼ŒãŠãŠã¾ã‹ã«è¿°ã¹ã‚‹ã¨ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã‚‹ã&nbsp;ã‚ã†ï¼Ž

\begin{cslist}
 \csitem[\.{epTeXinputencoding} &lt;encoding&gt;]
  ç¾åœ¨èª­ã¿è¾¼ã‚“ã§ã„ã‚‹ãƒ•ã‚¡ã‚¤ãƒ«ã®æ–‡å­—ã‚³ãƒ¼ãƒ‰ã‚’&lt;encoding&gt;ã«å¤‰æ›´ã™ã‚‹ï¼Ž
  å®Ÿéš›ã«å¤‰æ›´ã•ã‚Œã‚‹ã®ã¯ã€Œæ¬¡ã®è¡Œã€ã§ã‚ã‚Šï¼Œã¾ãŸç¾åœ¨ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‹ã‚‰ã•ã‚‰ã«\.{input}ç­‰ã§
  èª­ã¾ã‚ŒãŸãƒ•ã‚¡ã‚¤ãƒ«ã«ã¯åŠ¹åŠ›ã‚’åŠã¼ã•ãªã„ï¼Ž

  å¼•æ•°&lt;encoding&gt;ã®èª­ã¿å–ã‚Šã¯ï¼Œ
  ï¼ˆ\LaTeX ã§å®šç¾©ãŒä¸Šæ›¸ãã•ã‚Œã¦ã„ãªã„ï¼Œãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã®ï¼‰\.{input}ã®å¼•æ•°ï¼ˆãƒ•ã‚¡ã‚¤ãƒ«åï¼‰ã‚’
  å–å¾—ã™ã‚‹ã®ã¨åŒã˜ãƒ«ãƒ¼ãƒãƒ³ãŒç”¨ã„ã‚‰ã‚Œã‚‹ï¼Ž
  ãã®ãŸã‚ï¼Œ
\begin{verbatim}
\epTeXinputencoding sjis
\end{verbatim}
  ã®ã‚ˆã†ã«ï¼Œ&lt;encoding&gt;ã¯|{}|ã§å›²ã¾ãªã„ã“ã¨\footnote{\TeX~Live 2020ä»¥é™ï¼Œ
  \.{input}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã§ãƒ–ãƒ¬ãƒ¼ã‚¹ã§å›²ã¾ã‚ŒãŸãƒ•ã‚¡ã‚¤ãƒ«åæŒ‡å®šãŒå¯èƒ½ã«
  ãªã£ãŸ(r53729)ã“ã¨ã«ä»˜éšã—ã¦ï¼Œ\.{epTeXinputencoding}ã§ã‚‚ãƒ–ãƒ¬ãƒ¼ã‚¹ã§
  å›²ã‚“ã&nbsp;&lt;encoding&gt;ã®æŒ‡å®šãŒå¯èƒ½ã¨ãªã£ãŸï¼Ž}ï¼Ž
  &lt;encoding&gt;ã®æœ«å°¾ã¯ï¼Œç©ºç™½ãƒˆãƒ¼ã‚¯ãƒ³ã‚„å±•é–‹ä¸èƒ½ãƒˆãƒ¼ã‚¯ãƒ³ã«ã‚ˆã£ã¦åŒºåˆ‡ã‚‰ã‚Œã‚‹ï¼Ž
  % scan_file_name ã§&lt;encoding&gt; ã‚’å–å¾—ã—ã¦ã„ã‚‹ã®ã§ï¼Œ
  % \epTeXinputencoding "euc" \epTeXinputencoding ""e""u""c"" ã‚‚ OK.

  &lt;encoding&gt;ã®å€¤ã¯ï¼ŒåŸºæœ¬çš„ã«ã¯\pTeX ã®\texttt{-kanji}ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã§æŒ‡å®šã§ãã‚‹å€¤
  (\texttt{euc}, \texttt{sjis}, \texttt{jis}, \texttt{utf8})ã§ã‚ã‚‹ï¼Ž
  å¤§æ–‡å­—å°æ–‡å­—ã¯è€ƒæ…®ã—ãªã„ï¼ˆ\TeX ã®\.{uccode}, \.{lccode}ã¯å‚ç…§ã—ãªã„ï¼‰ï¼Ž
  % BINARY, ISO-2022-JP, EUC-JP, Shift_JIS, UTF-8 (, uptex) ã‚‚ OK
  % ptexenc å´ã§ strcasecmp ã§æ¯”è¼ƒã—ã¦ã„ã‚‹ã®ã§ï¼Œå¤§æ–‡å­—ãƒ»å°æ–‡å­—ã®åŒºåˆ¥ã¯ã—ãªã„
  % ï¼ˆ\uccode, \lccode ã¯å‚ç…§ã—ãªã„ï¼‰
\end{cslist}


\subsection{ç”¨ç´™ã®åŽŸç‚¹ä½ç½®ã®è¨­å®šï¼Œ\.{readpapersizespecial}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–}\label{readpss}
\pTeX ç³»åˆ—ã§ã¯ï¼Œç”¨ç´™ã‚µã‚¤ã‚ºã®æŒ‡å®šã«ã¯ä¼çµ±çš„ã«papersize specialãŒåˆ©ç”¨ã•ã‚Œã¦ããŸï¼Ž
ãã‚Œã‚’è€ƒæ…®ã—ã¦ï¼Œ\epTeX ã§ã¯ã€Œç‰¹å®šæ›¸å¼ã®papersize specialã‚’èª­ã¿å–ã£ã¦
\.{pdflastxpos}, \.{pdflastypos}ï¼ˆç¬¬\ref{pdfsavepos}ç¯€ã‚’å‚ç…§ï¼‰ã®åŽŸç‚¹ä½ç½®ã‚’è¨­å®šã™ã‚‹ã€ã¨
ã„ã†æ©Ÿèƒ½ã‚’ä»˜åŠ&nbsp;ã—ã¦ã„ã‚‹ï¼Ž
\begin{dangerous}
  dviwareã«ã‚ˆã£ã¦æ­£ç¢ºãªæ›¸å¼ã¯ç•°ãªã‚‹ã‚ˆã†ã&nbsp;ãŒï¼Œ\epTeX~180901ãŒè§£é‡ˆã™ã‚‹papersize specialã¯
  ä»¥ä¸‹ã®æ–‡æ³•ã«æ²¿ã£ãŸã‚‚ã®ã«ãªã£ã¦ã„ã‚‹\footnote{%
  papersize specialã§æŒ‡å®šã—ãŸé•·ã•ã¯å¸¸ã«\texttt{true}ä»˜ãã§è§£é‡ˆã™ã‚‹ã®ãŒæ…£ç¿’ã¨
  ãªã£ã¦ã„ã‚‹ãŒï¼Œ\epTeX~180901ã‚ˆã‚Šå‰ã§ã¯\texttt{true}ãªã—ã®å¯¸æ³•ã¨ã—ã¦è§£é‡ˆã™ã‚‹ã¨ã„ã†
  ãƒã‚°ãŒå­˜åœ¨ã—ãŸï¼Ž}ï¼Ž
  ãªãŠï¼Œ\Pkg{jsclasses}ã®|papersize|ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã‚„2016å¹´ä»¥é™ã®
  \Pkg{graphics}/\Pkg{color}ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã®ãƒ‰ãƒ©ã‚¤ãƒã‚ªãƒ—ã‚·ãƒ§ãƒ³ãŒç™ºè¡Œã™ã‚‹æ›¸å¼ã¯ï¼Œã“ã‚Œã«åˆè‡´ã™ã‚‹ï¼Ž
\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*}
  è²&nbsp;ã®ç¬¦å·ã‚„å°æ•°ç‚¹ã¨ã—ã¦ã®ã€Œ\texttt{,}ã€ï¼Œãã—ã¦ä¸€åˆ‡ã®ç©ºç™½ã‚’è¨±å®¹ã—ãªã„ã¨ã“ã‚ã«
  æ³¨ç›®ã—ã¦ã»ã—ã„ï¼Žã¾ãŸï¼Œ\texttt{zw},~\texttt{zh},~\texttt{em},~\texttt{ex}ã¨ã„ã†
  ç¾åœ¨ã®ãƒ•ã‚©ãƒ³ãƒˆã«ä¾å­˜ã™ã‚‹å˜ä½ã‚‚ä½¿ç”¨ä¸å¯èƒ½ã§ã‚ã‚‹ï¼Ž
\end{dangerous}

ã¾ãŸï¼Œ\epTeX~180901ä»¥é™ã§ã¯\.{readpapersizespecial}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã«ã‚ˆã£ã¦
æœ¬æ©Ÿèƒ½ã®æœ‰åŠ¹ãƒ»ç„¡åŠ¹ã‚’åˆ¶å¾¡ã§ãã‚‹ï¼Ž
ãã‚Œã‚ˆã‚Šå‰ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã¯ï¼Œæœ¬æ©Ÿèƒ½ã¯å¸¸ã«æœ‰åŠ¹ã§ã‚ã£ãŸï¼Ž

\begin{cslist}
 \csitem[\.{readpapersizespecial} (integer)]
  ã“ã®å†…éƒ¨æ•´æ•°ã®å€¤ãŒæ­£ã®å&nbsp;´åˆï¼Œ\epTeX ã¯
  papersize specialãŒdviä¸­ã«æ›¸ãå‡ºã•ã‚Œã‚‹æ™‚ã«ãã®å†…å®¹ã‚’è§£é‡ˆã—ï¼Œ
  è‡ªå‹•çš„ã«\.{pdfpagewidth}, \.{pdfpageheight}ã®å€¤ã‚’è¨­å®šã™ã‚‹ï¼Ž
  \epTeX~180901ã§è¿½åŠ&nbsp;ã•ã‚Œï¼Œæ—¢å®šå€¤ã¯1ã§ã‚ã‚‹ï¼Ž
\end{cslist}


\subsection{\.{current[x]spacingmode}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–}
ã‚‚ã¨ã‚‚ã¨\pTeX ç³»åˆ—ã§ã¯ï¼Œ\.{kanjiskip},~\.{xkanjiskip}ã®æŒ¿å…¥ãŒæœ‰åŠ¹ã«ãªã£ã¦ã„ã‚‹ã‹
ç›´æŽ¥çš„ã«çŸ¥ã‚‹æ–¹æ³•ãŒ\.{showmode}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã—ã‹ãªã‹ã£ãŸï¼Ž
ã“ã‚Œã§ã¯ä½¿ã„å‹æ‰‹ãŒæ‚ªã„ã®ã§ï¼Œ
\.{currentspacingmode}, \.{currentxspacingmode}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ãŒ2019/10/28ã«
å±±ä¸‹ã•ã‚“ã«ã‚ˆã£ã¦å®Ÿè£…ã•ã‚ŒãŸ(\cite{tjb94})ï¼Ž

\begin{cslist}
 \csitem[\.{currentspacingmode} (read-only integer)]
  \pTeX ã®ã€Œæ¨™æº–ã§\.{kanjiskip}ã‚’æŒ¿å…¥ã™ã‚‹ã€æ©Ÿèƒ½ãŒæœ‰åŠ¹(\.{autospacing})ãªã‚‰ã°1ï¼Œ
  ç„¡åŠ¹(\.{noautospacing})ãªã‚‰ã°0ã‚’è¿”ã™ï¼Ž
 \csitem[\.{currentxspacingmode} (read-only integer)]
  \pTeX ã®ã€Œæ¨™æº–ã§\.{xkanjiskip}ã‚’æŒ¿å…¥ã™ã‚‹ã€æ©Ÿèƒ½ãŒæœ‰åŠ¹(\.{autoxspacing})ãªã‚‰ã°1ï¼Œ
  ç„¡åŠ¹(\.{noautoxspacing})ãªã‚‰ã°0ã‚’è¿”ã™ï¼Ž
\end{cslist}

åŒæ§˜ã«ï¼Œ\eupTeX ã§ã‚‚\.{currentcjktoken}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ãŒ2019/10/28ã«å®Ÿè£…ã•ã‚ŒãŸï¼Ž
% e-pTeX ã®è¿½åŠ&nbsp;ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã§ã¯ãªã„ãŒï¼Œãƒ‰ã‚­ãƒ¥ãƒ¡ãƒ³ãƒˆåŒ–ã®éƒ½åˆä¸Šã“ã“ã«æ›¸ã„ãŸï¼Ž

\begin{cslist}
 \csitem[\.{currentcjktoken}ï¼ˆread-only integerï¼Œ\emph{\eupTeX ã®ã¿}ï¼‰]
  \upTeX ã®ã€Œå’Œæ–‡(CJK)æ–‡å­—ã¨æ¬§æ–‡æ–‡å­—ã‚’åŒºåˆ¥ã™ã‚‹ã€æ©Ÿèƒ½ã«ã¤ã„ã¦ï¼Œ
  \.{enablecjktoken}ã®çŠ¶æ…‹ãªã‚‰ã°0ï¼Œ
  \.{disablecjktoken}ã®çŠ¶æ…‹ãªã‚‰ã°1ï¼Œ
  \.{forcecjktoken}ã®çŠ¶æ…‹ãªã‚‰ã°2ã‚’è¿”ã™ï¼Ž
\end{cslist}


\section{Unicode \TeX ç”±æ¥ã®æ©Ÿèƒ½}

\subsection{\.{Uchar}, \.{Ucharcat}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–}
\hologo{XeTeX}, \hologo{LuaTeX}ã«ã¯ï¼Œæ–‡å­—ã‚³ãƒ¼ãƒ‰&lt;character code&gt;ã‚’å¼•æ•°ã«ã¨ã‚Š
\emph{æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³}ã«å±•é–‹ã•ã‚Œã‚‹ã€Œ\.{Uchar} &lt;character code&gt;ã€ã¨ã„ã†ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ãŒå­˜åœ¨ã™ã‚‹
\footnote{\.{char}ã¯å±•é–‹ä¸èƒ½ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã§ã‚ã‚‹ã“ã¨ã«æ³¨æ„ï¼Ž}ï¼Žã¾ãŸ\hologo{XeTeX}ã«ã¯ï¼Œ
æ–‡å­—ã‚³ãƒ¼ãƒ‰ãƒ»ã‚«ãƒ†ã‚´ãƒªãƒ¼ã‚³ãƒ¼ãƒ‰ãŒãã‚Œãžã‚Œ&lt;character code&gt;, &lt;category code&gt;ã§ã‚ã‚‹
æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã‚’ä½œã‚‹ã€Œ\.{Ucharcat}~&lt;character code&gt;~&lt;category code&gt;ã€ã¨ã„ã†ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã‚‚
å­˜åœ¨ã™ã‚‹\footnote{\hologo{LuaTeX}ã§ã¯Luaã«ã‚ˆã‚‹ä»£æ›¿ç‰©ãŒã‚ã‚‹ï¼Ž}ï¼Ž

% pTeX ã®ã€ŒæŠœã‘é“ã€ã®å…·ä½“çš„ãªã‚³ãƒ¼ãƒ‰ï¼Ÿ
\pTeX ã§ã€Œå’Œæ–‡ç‰ˆ\.{Uchar}ã€ã«ç›¸å½“ã™ã‚‹ã“ã¨ã¯\TeX~Live 2019ä»¥å‰ã®\pTeX ã§ã¯ãƒžã‚¯ãƒ­ã§å®Ÿç¾ã™ã‚‹ã“ã¨ãŒå¯èƒ½ã&nbsp;ãŒï¼Œ
å°†æ¥ã®\pTeX ã®æ”¹ä¿®ã§ä¸å¯èƒ½ã«ãªã‚‹æã‚Œ(\cite{tjb81,tjb95})ãŒã‚ã‚‹ã®ã§ï¼Œ
\epTeX~191112ã§å‰æ®µè½ã§è¿°ã¹ãŸ\.{Uchar}, \.{Ucharcat}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã‚’è¿½åŠ&nbsp;ã™ã‚‹ã“ã¨ã«ã—ãŸï¼Ž

\begin{cslist}
 \csitem[\.{Uchar} &lt;character code&gt;]
  æ–‡å­—ã‚³ãƒ¼ãƒ‰ãŒ&lt;character code&gt;ã®æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã«å±•é–‹ã•ã‚Œã‚‹ï¼Ž
  æŒ‡å®šã—ãŸå€¤ã¨å¾—ã‚‰ã‚Œã‚‹æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®å¯¾å¿œè¡¨ã¯æ¬¡ã®é€šã‚Šï¼Ž

  \begin{center}
	\small\medskip
	\begin{tabular}{lccc}
	  \toprule
	  &lt;character code&gt;&amp;å’Œæ–‡ãƒ»æ¬§æ–‡&amp;\multicolumn{2}{c}{category code}\\\cmidrule(lr){3-4}
	  &amp;&amp;\epTeX&amp;\eupTeX\\
	  \midrule
	  0--31, 33--255\footnotemark%
	                &amp;æ¬§æ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³&amp;12&amp;12\\
	  32            &amp;æ¬§æ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³&amp;10&amp;10\\
	  256ä»¥ä¸Šã®&lt;kanji code&gt;&amp;å’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³&amp;---ï¼ˆéƒ½åº¦å–å¾—ï¼‰&amp;ãã®æ™‚ã®\.{kcatcode}\footnotemark\\
	  \bottomrule
	\end{tabular}
  \end{center}
  \addtocounter{footnote}{-2}\stepcounter{footnote}
  \footnotetext{\epTeX~241020 (\upTeX~2.00, \TeX~Live~2025)ä»¥é™ï¼Œ
	\.{kcatcode}ã®å€¤ãŒ14ã®ã¨ãã®æ¬§æ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®æœ‰åŠ¹ãªæ–‡å­—ã‚³ãƒ¼ãƒ‰ã®æœ€å¤§å€¤ã¯0x2E7F(\cite{tjb170})ï¼Ž}

  \stepcounter{footnote}
  \footnotetext{ã‚‚ã—\.{kcatcode}ã®å€¤ãŒ15ã&nbsp;ã£ãŸã¨ãã¯ï¼Œå¾—ã‚‰ã‚Œã‚‹å’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®
	\.{kcatcode}ã¯18ã¨ãªã‚‹ï¼Ž}
  \addtocounter{footnote}{-2}

 \csitem[\.{Ucharcat} &lt;character code&gt; &lt;category code&gt;]
  æ–‡å­—ã‚³ãƒ¼ãƒ‰ãƒ»ã‚«ãƒ†ã‚´ãƒªãƒ¼ã‚³ãƒ¼ãƒ‰ãŒãã‚Œãžã‚Œ&lt;character code&gt;, &lt;category code&gt;ã®æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã«å±•é–‹ã•ã‚Œã‚‹ï¼Ž

  \epTeX ã§ã¯å’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã«ã¯ã‚«ãƒ†ã‚´ãƒªãƒ¼ã‚³ãƒ¼ãƒ‰ã®æƒ…å&nbsp;±ã¯ä¿å­˜ã•ã‚Œãªã„ãŸã‚ï¼Œ
  \epTeX ã®\.{Ucharcat}ã¯æ¬§æ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®ç”Ÿæˆã—ã‹ã‚µãƒãƒ¼ãƒˆã—ãªã„ï¼Ž
  å…·ä½“çš„ã«ã¯ï¼Œ
  æŒ‡å®šå¯èƒ½ãªå€¤ã¯&lt;character code&gt;ãŒ0--255\footnotemarkï¼Œ&lt;category code&gt;ãŒ1--4, 6--8, 10--13ã®ã¿ã§ã‚ã‚‹ï¼Ž
\end{cslist}
  \addtocounter{footnote}{1}
\begin{dangerous}
  \eupTeX ã§ã¯ï¼Œ\.{Ucharcat}ã§å’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®ç”Ÿæˆã‚‚ã‚µãƒãƒ¼ãƒˆã—ã¦ã„ã‚‹ï¼Ž

  \medskip
  \begin{itemize}
	\item &lt;character code&gt;ãŒ0--127ã®ã¨ãã¯ï¼Œæ¬§æ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®ã¿ç”Ÿæˆå¯èƒ½ã§ã‚ã‚‹ï¼Žå¾“ã£ã¦
	&lt;category code&gt;ã®æŒ‡å®šå¯èƒ½å€¤ã¯1--4, 6--8, 10--13ï¼Ž
	\item &lt;character code&gt;ãŒ128--255ã®ã¨ãã¯ï¼Œæ¬§æ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ãƒ»å’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®
	ã©ã¡ã‚‰ã‚‚ç”Ÿæˆå¯èƒ½ã§ã‚ã‚‹ï¼Ž
	&lt;category code&gt;ã®æŒ‡å®šå¯èƒ½å€¤ã¯1--4, 6--8, 10--13ï¼ˆä»¥ä¸Šæ¬§æ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã‚’ç”Ÿæˆï¼‰ï¼Œ
	ãŠã‚ˆã³16--20\footnotemark ï¼ˆå’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã‚’ç”Ÿæˆï¼‰ï¼Ž
	\addtocounter{footnote}{-1}
	\item &lt;character code&gt;ãŒ256ä»¥ä¸Šã®ã¨ãã¯ï¼Œå’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã®ã¿ç”Ÿæˆå¯èƒ½ã§ã‚ã‚‹ï¼Žå¾“ã£ã¦
	&lt;category code&gt;ã®æŒ‡å®šå¯èƒ½å€¤ã¯16--20\footnotemark ï¼Ž
  \end{itemize}
\end{dangerous}
  \footnotetext{\upTeX~1.35ä»¥é™(\TeX~Live~2025ä»¥é™)ï¼Œ
	å’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã‚’ç”Ÿæˆã™ã‚‹\.{kcatcode}ã®æœ€å¤§å€¤ã¯19ã‹ã‚‰20ã«æ‹¡å¼µã•ã‚ŒãŸ(\cite{tjb46})ï¼Ž}
\begin{dangerous}
  \.{Uchar}ã§å’Œæ–‡æ–‡å­—ãƒˆãƒ¼ã‚¯ãƒ³ã‚’ç”Ÿæˆã™ã‚‹ã«ã¯ï¼Œãã®å’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã‚’
  ä¸Žãˆã‚‹å¿…è¦ãŒã‚ã‚‹ãŒï¼Œãã®å€¤ã¯å†…éƒ¨æ¼¢å­—ã‚³ãƒ¼ãƒ‰ã«ä¾ã‚‹ã®ã§ï¼Œ
  |\jis|ã‚„|\euc|ç­‰ã®æ–‡å­—ã‚³ãƒ¼ãƒ‰å¤‰æ›ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã‚’ä½¿ã†ã®ãŒä¾¿åˆ©ã§ã‚ã‚‹
  ï¼ˆä¾‹ãˆã°|\Uchar\jis"3441|ã§ã€Œ\Uchar\jis"3441ã€ã‚’å¾—ã‚‹ï¼‰ï¼Ž

  ãŸã&nbsp;ã—ï¼Œ\eupTeX ã®\.{Ucharcat}ã§ã¯&lt;character code&gt;ã¨&lt;category code&gt;ã‚’
  ç©ºç™½ãƒˆãƒ¼ã‚¯ãƒ³ã§åŒºåˆ‡ã‚‹å¿…è¦ãŒã‚ã‚Šï¼Œæ³¨æ„ã‚’è¦ã™ã‚‹ï¼Ž
  ä¾‹ãˆã°ï¼Œã‚«ãƒ†ã‚´ãƒªãƒ¼ã‚³ãƒ¼ãƒ‰17ã®ã€Œæ¼¢ã€ã‚’å¾—ã‚ˆã†ã¨ã—ã¦ï¼Œ
  å˜ã«
  \begin{quote}
	\verb+\Ucharcat\jis"3441 17 % ã‚¨ãƒ©ãƒ¼+
  \end{quote}
  ã¨æ›¸ãã¨ã‚¨ãƒ©ãƒ¼\footnote{%
    \.{jis}ã®å±•é–‹æ™‚ã«å¾Œã‚ã®ç©ºç™½ãƒˆãƒ¼ã‚¯ãƒ³ãŒé£Ÿã‚ã‚Œã¦ã—ã¾ã„ï¼Œ\.{Uchar}ã«ã¯
    æ–‡å­—ã‚³ãƒ¼ãƒ‰2845017ï¼ˆ$\text{æ¼¢}=\text{U+6F22}\rightarrow 28450$ã¨17ãŒ
    ç¹‹ãŒã£ãŸçµæžœï¼‰ãŒæ¸¡ã£ã¦ã—ã¾ã†ï¼Ž
  }ãŒç™ºç”Ÿã™ã‚‹ï¼Žæ¬¡ã®ã‚ˆã†ã«æ›¸ã‘ã°ã‚¨ãƒ©ãƒ¼ãŒå›žé¿ã§ãã‚‹ã‚ˆã†ã§ã‚ã‚‹ï¼Ž
  \begin{quote}
	\verb+\Ucharcat\jis"3441\noexpand\space17 % ã‚¨ãƒ©ãƒ¼å›žé¿+
  \end{quote}
  ã‚ã‚‹ã„ã¯ï¼š
  \begin{quote}
	\verb+\Ucharcat\numexpr\jis"3441\relax 17 % ã‚¨ãƒ©ãƒ¼å›žé¿+
  \end{quote}
\end{dangerous}


\subsection{ã‚¨ãƒ©ãƒ¼æŠ‘åˆ¶(\.{suppress...error})}\label{suppress}
\hologo{LuaTeX}ã«å®Ÿè£…ã•ã‚Œã¦ã„ã‚‹ã‚¨ãƒ©ãƒ¼ç™ºç”Ÿã‚’æŠ‘æ­¢ã™ã‚‹ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ãŸã¡ã®ã†ã¡
ã„ãã¤ã‹ã‚’ï¼Œ\epTeX~211207ã§è¿½åŠ&nbsp;ã—ãŸï¼Ž
% èª¬æ˜Žæ–‡ã¯ https://github.com/texjporg/tex-jp-build/pull/127 ã‚ˆã‚Š
\begin{cslist}
 \csitem[\.{suppresslongerror} (integer)]
  ã“ã®å†…éƒ¨æ•´æ•°ãŒéžã‚¼ãƒ­ã®ã¨ãï¼Œ\.{long}ãªã—ã§å®šç¾©ã•ã‚ŒãŸãƒžã‚¯ãƒ­ã®å¼•æ•°ã«\.{par}ãŒå…¥ã£ãŸ
  å&nbsp;´åˆã® \texttt{! Paragraph ended before \.{...} was complete.} ã¨ã„ã†ã‚¨ãƒ©ãƒ¼ã‚’æŠ‘æ­¢ã™ã‚‹ï¼Ž
 \csitem[\.{suppressoutererror} (integer)]
  ã“ã®å†…éƒ¨æ•´æ•°ãŒéžã‚¼ãƒ­ã®ã¨ãï¼Œ\.{outer}ç”±æ¥ã®ã‚¨ãƒ©ãƒ¼ã‚’æŠ‘æ­¢ã™ã‚‹ï¼Ž
 \csitem[\.{suppressmathparerror} (integer)]
  ã“ã®å†…éƒ¨æ•´æ•°ãŒéžã‚¼ãƒ­ã®ã¨ãï¼Œæ•°å¼ãƒ¢ãƒ¼ãƒ‰ä¸­ã®\.{par}ã«ç”±æ¥ã™ã‚‹ã‚¨ãƒ©ãƒ¼ã‚’æŠ‘æ­¢ã™ã‚‹ï¼Ž
\end{cslist}


\section{\TeX~Liveã«ã‚ˆã‚‹æ‹¡å¼µ}
2021å¹´ä»¥é™ã®\epTeX/\eupTeX ã«ã¯ï¼Œ\TeX~Liveãƒãƒ¼ãƒ&nbsp;ã«ã‚ˆã£ã¦
\hologo{pdfTeX}åŠã³\hologo{XeTeX}ã¨å…±é€šã®
ã‚¯ãƒ­ã‚¹ã‚¨ãƒ³ã‚¸ãƒ³ãªæ‹¡å¼µæ©Ÿèƒ½ãŒã„ãã¤ã‹è¿½åŠ&nbsp;ã•ã‚Œã¦ã„ã‚‹ï¼Ž
% å®Ÿã¯
%   * tracingstacklevels.ch (add |\tracingstacklevels| since TL2021)
%   * partokenname.ch (add |\tracingstacklevels| since TL2022)
% ã® change file ã¯ e-(u)pTeX ã®ã¿ãªã‚‰ãšï¼Œç´&nbsp;ã®\pTeX ã«ã‚‚é©ç”¨ã•ã‚Œã¦ã„ã‚‹ï¼Ž
% æ®‹ã‚Šã®
%   * char-warning-eptex.ch (enhance |\tracinglostchars| since TL2021)
%   * showstream.ch (add |\showstream| since TL2022)
% ã® change file ã¯ e-TeX ã‹ã‚‰ã®å¤‰æ›´ã§ã‚ã‚‹ãŸã‚ï¼Œç´&nbsp;ã®\pTeX ã«ã¯é©ç”¨ã•ã‚Œãªã„ï¼Ž

\subsection{ãƒ‡ãƒãƒƒã‚°æ©Ÿèƒ½(\.{tracing...})}
\begin{cslist}
 \csitem[\.{tracinglostchars} (integer)]
  ç¾åœ¨ã®ãƒ•ã‚©ãƒ³ãƒˆ(TFM)ã«å­˜åœ¨ã—ãªã„æ–‡å­—ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ãŸã¨ãã®ãƒˆãƒ¬ãƒ¼ã‚¹æƒ…å&nbsp;±ã‚’
  ã©ã®ã‚ˆã†ã«è¡¨ç¤ºã™ã‚‹ã‹ã‚’æ±ºå®šã™ã‚‹å†…éƒ¨æ•´æ•°ã§ã‚ã‚‹ï¼Ž
  \TeX82ã¯ï¼Œå€¤ãŒæ­£ï¼ˆ1ä»¥ä¸Šï¼‰ã®å&nbsp;´åˆã«
\begin{verbatim}
  Missing character: There is no æ–‡å­— in font ãƒ•ã‚©ãƒ³ãƒˆå!
\end{verbatim}
  ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’ãƒ­ã‚°ãƒ•ã‚¡ã‚¤ãƒ«ã«å‡ºåŠ›ã™ã‚‹ï¼Ž
  ã¾ãŸ\eTeX ã¯ï¼Œå€¤ãŒ2ä»¥ä¸Šã®å&nbsp;´åˆã«åŒã˜ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’\.{tracingonline}ã®å€¤ã«
  ã‹ã‹ã‚ã‚‰ãšã‚¿ãƒ¼ãƒŸãƒŠãƒ«ã«ã‚‚å‡ºåŠ›ã™ã‚‹ï¼Ž

  \TeX~Live 2021ä»¥é™ã§ã¯ã•ã‚‰ã«ï¼Œå€¤ãŒ3ä»¥ä¸Šã®å&nbsp;´åˆã«ã‚¨ãƒ©ãƒ¼ã‚’ç™ºç”Ÿã•ã›ï¼Œ
  å½“è©²æ–‡å­—ã‚³ãƒ¼ãƒ‰ã‚’16é€²æ•°ã§è¡¨ç¤ºã™ã‚‹ã‚ˆã†ã«æ‹¡å¼µã•ã‚Œã¦ã„ã‚‹ï¼Žä¾‹ãˆã°ä»¥ä¸‹ã®ã¨ãŠã‚Šï¼š
\begin{verbatim}
  ! Missing character: There is no æ–‡å­— ("XX) in font ãƒ•ã‚©ãƒ³ãƒˆå.
\end{verbatim}

  ãªãŠï¼Œ\pTeX ç³»åˆ—ã§ã¯ã€Œå…¨ã¦ã®å’Œæ–‡ãƒ•ã‚©ãƒ³ãƒˆã«ã¯ï¼Œå’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦æœ‰åŠ¹ãª
  å…¨ã¦ã®æ–‡å­—ãŒå­˜åœ¨ã™ã‚‹ã€ã¨ã„ã†æ‰±ã„ã§ã‚ã‚‹ãŸã‚ï¼Œå’Œæ–‡æ–‡å­—ã‚³ãƒ¼ãƒ‰ã«ã¤ã„ã¦
  ã“ã®ãƒˆãƒ¬ãƒ¼ã‚¹æƒ…å&nbsp;±ãŒå‡ºåŠ›ã•ã‚Œã‚‹ã“ã¨ã¯ãªã„ï¼Ž

 \csitem[\.{tracingstacklevels} (integer)]
  \.{tracingstacklevels}ã®å€¤ãŒæ­£ï¼Œã‹ã¤\.{tracingmacros}ã®å€¤ã‚‚æ­£ã®å&nbsp;´åˆï¼Œ
  ãƒžã‚¯ãƒ­å±•é–‹ã®æ·±ã•ã‚’ç¤ºã™prefixã‚’å‡ºåŠ›ã™ã‚‹ï¼Žä¾‹ãˆã°ï¼Œæ·±ã•2ã®ã¨ãã¯ |~..| ãŒè¡¨ç¤ºã•ã‚Œã‚‹ï¼Ž
  ãªãŠï¼ŒæŒ‡å®šã•ã‚ŒãŸæ•°å€¤ä»¥ä¸Šã®æ·±ã•ã«ã¤ã„ã¦ã¯ãƒžã‚¯ãƒ­å±•é–‹ã®ãƒˆãƒ¬ãƒ¼ã‚¹ã‚’åˆ‡ã‚Šæ¨ã¦ã‚‹ï¼Ž
  \TeX~Live 2021ã§è¿½åŠ&nbsp;ã•ã‚ŒãŸï¼Ž
\end{cslist}


\subsection{parãƒˆãƒ¼ã‚¯ãƒ³ã®åˆ¶å¾¡}
\TeX82ã§ã¯\.{par}ã¨ã„ã†åç§°ã®åˆ¶å¾¡ç¶´ã¯ç‰¹åˆ¥ãªå½¹å‰²ã‚’æŒã£ã¦ã„ã‚‹ï¼Ž
\begin{itemize}
  \item ä»¥ä¸‹ã®å&nbsp;´åˆã«ã¯è‡ªå‹•çš„ã«\.{par}ãŒæŒ¿å…¥ã•ã‚Œã‚‹ï¼š
    \begin{itemize}
      \item å…¥åŠ›ä¸­ã®ç©ºè¡Œï¼ˆ2è¡Œé€£ç¶šã§ç©ºè¡ŒãŒã‚ã£ãŸå&nbsp;´åˆã¯2å›ž\.{par}ãŒç™ºè¡Œã•ã‚Œã‚‹ï¼‰
      \item æ°´å¹³ãƒ¢ãƒ¼ãƒ‰ä¸­ã§\TeX ãŒåž‚ç›´ãƒ¢ãƒ¼ãƒ‰ç”¨ã®å‘½ä»¤(\.{vskip}, \.{hrule},
        \.{unvbox}, \.{unvcopy}, \.{halign}, \.{end}, \.{dump})ã«
        å‡ºãã‚ã—ãŸã¨ãï¼Œãã®ç›´å‰\footnote{ã‚ªãƒªã‚¸ãƒŠãƒ«ã®çŠ¶æ…‹ã§ã¯\.{par}ã¯
        æ®µè½çµ‚äº†ï¼ˆåž‚ç›´ãƒ¢ãƒ¼ãƒ‰ã¸ç§»è¡Œï¼‰ã®æ„å‘³ã‚’æŒã¤ãŒï¼Œ\.{par}ãŒå†å®šç¾©ã•ã‚Œã¦
        åž‚ç›´ãƒ¢ãƒ¼ãƒ‰ã¸ã®ç§»è¡Œã«å¤±æ•—ã™ã‚‹ã¨ç„¡é™ãƒ«ãƒ¼ãƒ—ãŒç™ºç”Ÿã™ã‚‹ï¼Ž}
        % 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}ãªã—ã§å®šç¾©ã•ã‚ŒãŸãƒžã‚¯ãƒ­ä¸­ã®å¼•æ•°ã«ã¯\.{par}ã¯ä½¿ç”¨ã§ããªã„ï¼Ž
\begin{verbatim}
  ! Paragraph ended before \... was complete.
\end{verbatim}
  ã¨ã„ã†ã‚¨ãƒ©ãƒ¼ãŒç™ºç”Ÿã™ã‚‹ï¼Ž
  ãªãŠï¼Œç¦æ­¢ã•ã‚Œã‚‹ã®ã¯\.{par}ã¨ã„ã†\emph{åç§°}ã®åˆ¶å¾¡ç¶´ã§ã‚ã£ã¦ï¼Œ
  \verb+\let\endgraf\par+ãªã©ã®ã‚ˆã†ã«åˆ¥ã®åç§°ã®åˆ¶å¾¡ç¶´ã«
  \.{par}ã®æ„å‘³ã‚’ã‚³ãƒ”ãƒ¼ã—ã¦ç”¨ã„ã‚‹ã®ã¯å•é¡Œãªã„ï¼Ž
\end{itemize}

\LaTeXe~2021-06-01ãªã©ã§ã¯ã€Œæ®µè½çµ‚äº†æ™‚ã®ãƒ•ãƒƒã‚¯ã€ã‚’å®Ÿç¾ã•ã›ã‚‹ãŸã‚ã«
\.{par}ã®è‡ªå‹•æŒ¿å…¥ã¨ã„ã†æŒ™å‹•ã‚’åˆ©ç”¨ã—ã¦ãŠã‚Šï¼Œ\.{par}ã‚’å†å®šç¾©ã—ã¦ã„ã‚‹ï¼Ž

ã—ã‹ã—ï¼Œ\TeX82ã«ã¯ã€Œ\.{par}ã¨ã„ã†åç§°ã®åˆ¶å¾¡ç¶´ã€ã§ã¯ãªãã€Œæš—é»™ã®parã€ã‚’æŒ¿å…¥ã™ã‚‹
ç®‡æ‰€ãŒå­˜åœ¨ã™ã‚‹ï¼Žãã®ä»£è¡¨ãŒã€Œ\.{vbox}ã®ä¸­èº«ãŒæ°´å¹³ãƒ¢ãƒ¼ãƒ‰ã§çµ‚ã‚ã£ãŸå&nbsp;´åˆã€ã§ã‚ã‚Šï¼Œ
ã“ã®å&nbsp;´åˆã¯\.{par}ã¨ã„ã†åç§°ã®åˆ¶å¾¡ç¶´ã‚’å†å®šç¾©ã—ã¦ã‚‚ä½¿ã‚ã‚Œãªã„ï¼Ž
ã™ãªã‚ã¡ï¼Œ\LaTeXe ãªã©ã®ã€Œæ®µè½çµ‚äº†æ™‚ã®ãƒ•ãƒƒã‚¯ã€ãŒæŠœã‘ã¦ã—ã¾ã†ã“ã¨ã«ãªã‚‹ï¼Ž

2021-07-25ã®ã‚³ãƒŸãƒƒãƒˆr60054ï¼ˆ\TeX~Liveã§ã¯2022å¹´ä»¥é™ï¼‰ã§ã¯ï¼Œ
\.{partokenname}ã¨\.{partokencontext}ã¨ã„ã†ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ãŒè¿½åŠ&nbsp;ã•ã‚ŒãŸï¼Ž

\begin{cslist}
 \csitem[\.{partokenname} &lt;control sequence&gt;]
  ä¸Šã§è¿°ã¹ãŸ\.{par}ã¨ã„ã†åç§°ã®åˆ¶å¾¡ç¶´ã®ç‰¹åˆ¥ãªå½¹å‰²ã‚’ï¼Œä»–ã®åˆ¶å¾¡ç¶´ã«ç§»ã™åŠ¹æžœã‚’æŒã¤ï¼Ž
  \begin{quote}
	\verb+\partokenname \hoge+
  \end{quote}
  ã‚’å®Ÿè¡Œã—ãŸéš›ã«èµ·ã“ã‚‹çŠ¶æ³ã§èª¬æ˜Žã™ã‚‹ã¨ï¼Œ
  \begin{itemize}
    \item ä¸Šè¨˜ã§è¿°ã¹ãŸã€Œè‡ªå‹•æŒ¿å…¥ã•ã‚Œã‚‹å‘½ä»¤ã€ãŒ\.{par}ã‹ã‚‰\.{hoge}ã«å¤‰ã‚ã‚‹ï¼Ž
    \item \.{long}ãªã—ã§å®šç¾©ã•ã‚ŒãŸåˆ¶å¾¡ç¶´ã®å¼•æ•°ã«ãŠã„ã¦ï¼Œ\.{par}ã¯è¨±å®¹ã•ã‚Œã‚‹ã‚ˆã†ã«ãªã‚‹ãŒ
    é€†ã«\.{hoge}ãŒè¨±å®¹ã•ã‚Œãªããªã‚‹ï¼Ž
  \end{itemize}
  ãªãŠï¼Œ\.{partokenname}ã®åŠ¹æžœã¯å¸¸ã«ã‚°ãƒ­ãƒ¼ãƒãƒ«ã§ã‚ã‚‹ï¼Ž

 \csitem[\.{partokencontext} (integer)]
  \TeX ãŒ\.{par}\footnote{ã‚ã‚‹ã„ã¯\.{partokenname}ã«ã‚ˆã‚Š
  ä»£ã‚ã‚Šã«åˆ¥ã®åˆ¶å¾¡ç¶´ã«ãªã£ã¦ã„ã‚‹ã‹ã‚‚ã—ã‚Œãªã„ï¼Ž}ã‚’
  è‡ªå‹•æŒ¿å…¥ã™ã‚‹ç®‡æ‰€ã‚’åˆ¶å¾¡ã™ã‚‹å†…éƒ¨æ•´æ•°ã§ã‚ã‚Šï¼Œæ—¢å®šå€¤ã¯0ã§ã‚ã‚‹ï¼Ž

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    \item[$\.{partokencontext}&gt;0$ã®ã¨ãã®ã¿æŒ¿å…¥]
      \.{vbox}, \.{vtop}, \.{vcenter}ãã‚Œãžã‚Œã®æœ«å°¾
    \item[$\.{partokencontext}&gt;1$ã®ã¨ãã®ã¿æŒ¿å…¥]
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      output routineã®æœ«å°¾
  \end{description}
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\end{cslist}

\.{partokencontext}ã®æ—¢å®šå€¤ã¯0ã§ã‚ã‚Šï¼Œã“ã®å&nbsp;´åˆã®æŒ™å‹•ã¯\TeX82ã¨äº’æ›ã§ã‚ã‚‹ï¼Ž
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\subsection{\.{show}ç³»ã‚³ãƒžãƒ³ãƒ‰ã®å‡ºåŠ›åˆ¶å¾¡}
\begin{cslist}
 \csitem[\.{showstream} (integer)]
  é€šå¸¸ï¼Œ\.{show}ç³»ã‚³ãƒžãƒ³ãƒ‰\footnote{å…·ä½“çš„ã«ã¯
  \TeX82ã®\.{show}, \.{showbox}, \.{showlists}, \.{showthe}ã¨
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  ã‚ªãƒ¼ãƒ—ãƒ³ã•ã‚Œã‚‹ï¼‰ã«ä¸€è‡´ã•ã›ã‚‹ã¨ï¼Œç¨®ã€…ã®æƒ…å&nbsp;±ã®å‡ºåŠ›å…ˆãŒãƒªãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆã•ã‚Œï¼Œ
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  æ—¢å®šå€¤ã¯$-1$ã§ã‚ã‚Šï¼Œã“ã‚Œã¯ãƒ•ã‚¡ã‚¤ãƒ«ã¨ä¸€è‡´ã—ãªã„ãŸã‚\TeX82ã¨åŒã˜å‹•ä½œã¨ãªã‚‹ï¼Ž
  2021-11-07ã®ã‚³ãƒŸãƒƒãƒˆr60992ï¼ˆ\TeX~Liveã§ã¯2022å¹´ä»¥é™ï¼‰ã§è¿½åŠ&nbsp;ã•ã‚ŒãŸï¼Ž
\end{cslist}


\subsection{å±•é–‹é…å»¶\.{special}}
\begin{cslist}
 \csitem[\.{special} \texttt{shipout} &lt;general text&gt;]
  \TeX82ã®\.{special}ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã¯ï¼Œ\.{immediate}\.{write}ã¨åŒæ§˜ã«
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  ã§ã¯ï¼Œæ–°ãŸã«ã‚­ãƒ¼ãƒ¯ãƒ¼ãƒ‰|shipout|ã‚’ä»˜ã‘ã‚‹ã¨ãƒˆãƒ¼ã‚¯ãƒ³ã®å±•é–‹ã‚’
  ã€Œãƒšãƒ¼ã‚¸ã‚’DVIãƒ•ã‚¡ã‚¤ãƒ«ã«å‡ºåŠ›ã™ã‚‹æ™‚ç‚¹ã€ã¾ã§é…ã‚‰ã›ã‚‹
  ï¼ˆéž\.{immediate}ãª\.{write}ã¨åŒæ§˜ï¼‰ã“ã¨ãŒã§ãã‚‹ï¼ŽåŒæ§˜ã®æ©Ÿèƒ½ãŒ
  \hologo{pdfTeX}, \hologo{XeTeX}, \hologo{LuaTeX}, Alephã§
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\end{cslist}


\subsection{ã‚¨ãƒ©ãƒ¼æŠ‘åˆ¶(\.{ignoreprimitiveerror})}
\begin{cslist}
 \csitem[\.{ignoreprimitiveerror} (integer)]
  ã‚¨ãƒ³ã‚¸ãƒ³ãƒ¬ãƒ™ãƒ«ã®éžè‡´å‘½çš„ãªã‚¨ãƒ©ãƒ¼ã‚’æŠ‘åˆ¶ã—ï¼Œè­¦å‘Šã«è»½æ¸›ã™ã‚‹
  æ©Ÿèƒ½ã‚’æŒã¤ãƒ“ãƒƒãƒˆãƒ•ãƒ©ã‚°ã§ã‚ã‚‹ï¼Ž
  ç¾åœ¨ã¯ï¼Œ1ãƒ“ãƒƒãƒˆç›®ã‚’ç«‹ã¦ã‚‹ã¨ï¼ˆã¤ã¾ã‚Šå€¤ã‚’å¥‡æ•°ã«è¨­å®šã™ã‚‹ã¨ï¼‰
  ç„¡é™å¤§ã®ç¸®å°åº¦ã‚’æŒã£ãŸã‚°ãƒ«ãƒ¼ãŒå­˜åœ¨ã™ã‚‹ãƒœãƒƒã‚¯ã‚¹ã‚’\.{vsplit}ã§åˆ†å‰²ã—ã‚ˆã†ã¨ã™ã‚‹ã¨ç™ºç”Ÿã™ã‚‹
\begin{verbatim}
! Infinite glue shrinkage found in box being split
\end{verbatim}
  ã®ã‚¨ãƒ©ãƒ¼ãŒæŠ‘åˆ¶ã•ã‚Œã‚‹ï¼Ž
  \LaTeX ãƒãƒ¼ãƒ&nbsp;ã‹ã‚‰ã®è¦æœ›ï¼ˆèƒŒæ™¯ã¯\file{ltnews39.pdf}ã®
  ``Enhancements to the new mark mechanism''ç¯€ã§ã‚ã‚ã†ï¼‰ã§
  \TeX~Live 2025ã®\hologo{pdfTeX}, \hologo{XeTeX}ã«å®Ÿè£…ã•ã‚ŒãŸã®ã§ï¼Œ
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  \hologo{LuaTeX}ã®ã‚¨ãƒ©ãƒ¼æŠ‘åˆ¶ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ï¼ˆ\ref{suppress}ç¯€ï¼‰ã¯
  æ©Ÿèƒ½åˆ¥ã«æ–°ãŸãªãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã‚’å°Žå…¥ã™ã‚‹æ–¹å¼ã&nbsp;ãŒï¼Œ
  æœ¬ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–\.{ignoreprimitiveerror}ã¯å°†æ¥ã®æ‹¡å¼µã«å‚™ãˆãŸ
  ãƒ“ãƒƒãƒˆãƒ•ãƒ©ã‚°ã§ã‚ã‚Šä»–ã®ãƒ“ãƒƒãƒˆã¯ç•™ä¿ã•ã‚Œã¦ã„ã‚‹ï¼Ž
  % https://tug.org/pipermail/pdftex/2025-January/009434.html
\end{cslist}


\begin{comment}
\section{äº’æ›æ€§}
\eTeX, \pTeX ã¨ã®äº’æ›æ€§ã‚’ã¯ã‹ã‚‹ã®ã«æœ‰åŠ¹ãªæ‰‹æ®µã¨ã—ã¦ã¯ï¼Œã¾ãš\texttt{TRIP}
testãŒã‚ã‚‹ï¼Ž\cite{h7k}ã«ã‚‚æ›¸ã„ãŸãŒï¼Œã“ã‚Œã¯\TeX ã®ã‚½ãƒ¼ã‚¹ã®å…¨è¡Œã‚’å®Ÿè¡Œã™ã‚‹
ã‚ˆã†ãªãƒ†ã‚¹ãƒˆã‚½ãƒ¼ã‚¹ã§ã‚ã‚Šï¼Œ\texttt{TRIP} testã®å®Ÿè¡ŒçµæžœãŒé•ãˆã°ï¼Œã©ã“ã‹ã®
å‹•ä½œãŒé•ã£ã¦ã„ã‚‹ã“ã¨ãŒåˆ†ã‹ã‚‹ã¨ã„ã†ä»•æŽ›ã‘ã§ã‚ã‚‹ï¼Ž

å¹¸ã„ã«ã‚‚ï¼Œ\epTeX ã®ï¼ˆcompatibility modeã«ãŠã‘ã‚‹ï¼‰\texttt{TRIP} testã®å®Ÿè¡Œçµæžœã¯ï¼Œ\pTeX ã®ãã‚Œã¨ã»ã¨ã‚“
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\begin{itemize}
\item \texttt{Memory usage}ã®é•ã„ï¼š
\begin{alltt}
  Memory usage before: \(x\,\)&amp;\(\,y\); after: \(z\,\)\&amp;\(\,w\); still untouched: \(u\)
\end{alltt}
ã®ã¨ã“ã‚ã§ï¼Œ$x$, $z$ãŒ4å¤šãï¼Œ$u$ãŒ4å°‘ãªã„ï¼Ž
\item ï¼ˆ\texttt{FAM256}ãƒ‘ãƒƒãƒã®ãŠã‹ã’ã§ï¼‰æ•°å¼ãƒ•ã‚©ãƒ³ãƒˆãŒ256å€‹åŒæ™‚ã«
æ‰±ãˆã‚‹ã‚ˆã†ã«ãªã£ãŸã“ã¨ã«ã‚ˆã‚‹ï¼Œã‚¨ãƒ©ãƒ¼ã®æœªç™ºç”Ÿã‚„ã‚¨ãƒ©ãƒ¼ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã®é•ã„ï¼Ž
\item ãƒ­ã‚°ã®æœ€å¾Œã«å‡ºã¦ãã‚‹ï¼Œãƒ¡ãƒ¢ãƒªç·ä½¿ç”¨é‡ï¼Ž
\end{itemize}
ã¾ãŸï¼Œextended modeã¨
compatibility modeã«ã‚ˆã‚‹å‡ºåŠ›ã®é•ã„ã‚’æ¤œè¨¼ã™ã‚‹ã¨ï¼ŒMemory usageã®é•ã„ã‚„ãƒ¡ãƒ¢ãƒªç·ä½¿ç”¨é‡ã®ä»–ã«
ã¯ï¼Œ\texttt{e-TRIP}ã®èª¬æ˜Žæ›¸p.\ 4ã®é&nbsp;…ç›®4.ã«ã‚ã‚‹é•ã„ã—ã‹è¦‹å—ã‘ã‚‰ã‚Œãªã‹ã£ãŸï¼Œ

\par\vskip0.5\baselineskip\par

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\begin{verbatim}
  $ alias sep='sed "s/, yoko direction//;s/yoko direction, //;\
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\end{verbatim}
ã¨ã„ã†aliasã‚’åˆ©ç”¨ã™ã‚‹ã“ã¨ã§log fileã‹ã‚‰é™¤åŽ»ã—ï¼Œãã‚Œã¨\eTeX ã§ã®
\texttt{e-TRIP} testã®å‡ºåŠ›ã¨æ¯”ã¹ãŸçµæžœï¼Œ
\begin{itemize}
\item Memory Usageã®é•ã„ï¼ˆç•¥ï¼‰
\item ãƒ¬ã‚¸ã‚¹ã‚¿ã®ä½¿ç”¨å¯èƒ½å€‹æ•°ã‚’65536å€‹/ç¨®é¡žã¨ã—ãŸã“ã¨ã«ã‚ˆã‚‹ã‚¨ãƒ©ãƒ¼ã®æœªç™ºç”Ÿ
\item ï¼ˆå’Œæ–‡æ–‡å­—ã®ãŸã‚ï¼‰character codeã«256ä»¥ä¸Šã‚‚è¨±ã™ã“ã¨ã«ã‚ˆã‚‹
      ã‚¨ãƒ©ãƒ¼ã®æœªç™ºç”Ÿï¼Ž
\end{itemize}
ã¨ã„ã†é•ã„ã‚’å¾—ãŸï¼Ž

\par\vskip0.5\baselineskip\par

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çŸ¥ã‚‹é™ã‚Šã«ãŠã„ã¦ã¯ï¼Œãã®ã‚ˆã†ãªãƒ†ã‚¹ãƒˆã‚½ãƒ¼ã‚¹ã¯å…¬å¼ã«ã¯å­˜åœ¨ã—ãªã„ã‚ˆã†ã§ã‚ã‚‹ï¼Ž
ã—ã‹ã—ï¼Œã‚„ã¯ã‚Šæ°—ã«ãªã‚‹å•é¡Œã§ã‚ã‚Š{\tiny ï¼ˆã•ã‚‹æ–¹é¢ã‹ã‚‰åœ§åŠ›ã‚‚ããŸã®ã§ï¼‰}ï¼Œ
å€‹äººçš„ã«ä½œã£ã¦ã¿ãŸã‚‚ã®ãŒ\texttt{ptex-qtrip}ã§ã‚ã‚‹ï¼Žè©³ç´°ãªèª¬æ˜Žã¯ãã¡ã‚‰ã®
ãƒ‰ã‚­ãƒ¥ãƒ¡ãƒ³ãƒˆã«è­²ã‚‹ï¼Žã¨ã‚‚ã‹ãï¼Œã“ã‚Œã‚’å‹•ä½œã•ã›ã¦log fileã‚’æ¯”ã¹ã¦ã¿ã‚‹ã¨ï¼Œãƒ¡
ãƒ¢ãƒªé–¢é€£ã‚„\texttt{FAM256}é–¢é€£ä»¥å¤–ã¯
\begin{verbatim}
  -% split2 to -0.01802,6.94444 p=-10000
  +% split2 to -0.01806,6.94444 p=-10000
\end{verbatim}
ä»¥å¤–ã®é•ã„ã—ã‹ãªã‹ã£ãŸï¼Žã‚ãšã‹$0.00004$ã®é•ã„ï¼ˆå˜ä½ãŒã‚‚ã—pointã&nbsp;ã¨ã—ãŸã‚‰
$3$\,spï¼‰ã&nbsp;ãŒï¼Œã©ã“ã‹æ°—ã«ãªã‚‹ã¨ã“ã‚ã§ã‚ã‚‹ï¼Ž

ä¸Šã®ç®‡æ‰€ã‚‚ã‚ã‚‹ã—ï¼Œã¾ãŸ\texttt{ptex-qtrip}è‡ªä½“ãŒã¾ã&nbsp;å®Œå…¨ãªã‚‚ã®ã§ã¯ãªã®ã&nbsp;
ãŒï¼Œ\pTeX ã¨\epTeX ã¯å®Ÿç”¨ä¸Šã«ãŠã„ã¦ã¯äº’æ›ã¨è¨€ãˆãã†ãªæ°—ã‚‚ã—ãªãã‚‚ãªã„ï¼Ž

\end{comment}

\begin{thebibliography}{99}
 \bibitem{h7k} åŒ—å· å¼˜å…¸ï¼Œã€Œè¨ˆç®—æ•°å­¦IIã€€ä½œæ¥­è¨˜éŒ²ã€ï¼Œ2008ï¼Ž\\
  \url{https://osdn.jp/projects/eptex/document/resume/ja/1/resume.pdf}ã»ã‹ï¼Œ
  æœ¬PDFã¨åŒã˜ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã«ã‚ã‚‹\file{eptex_resume.pdf}ãŒãã‚Œã«ã‚ãŸã‚‹ï¼Ž
 \bibitem{yamamoto} å±±æœ¬ å’Œç¾©ï¼Œã€Œæ•°å¼famã®åˆ¶é™ã¨luatexã€ï¼Œ
  æŽ²ç¤ºæ¿ã€Œ\TeX\ Q\ \&amp;\ Aã€ï¼Œ2009/02/12ï¼Ž\\
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/52744.html}
 \bibitem{yamamoto2} å±±æœ¬ å’Œç¾©ï¼Œã€ŒRe: æ•°å¼famã®åˆ¶é™ã¨luatexã€ï¼Œ
  æŽ²ç¤ºæ¿ã€Œ\TeX\ Q\ \&amp;\ Aã€ï¼Œ2009/02/16ï¼Ž
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/52767.html}
 \bibitem{yamamoto3} å±±æœ¬ å’Œç¾©ï¼Œã€Œæ•°å¼famæ‹¡å¼µãƒžã‚¯ãƒ­ for e-pTeXç­‰ã€ï¼Œ
  æŽ²ç¤ºæ¿ã€Œ\TeX\ Q\ \&amp;\ Aã€ï¼Œ2009/02/21ï¼Ž
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/52799.html}
 \bibitem{expl31} æ²³åŽŸï¼Œã€Œãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã¨ãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã«ã¤ã„ã¦ã€ï¼Œ
  æŽ²ç¤ºæ¿ã€Œ\TeX\ Q\ \&amp;\ Aã€ï¼Œ2010/12/16ï¼Ž
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/55464.html}
 \bibitem{expl32} è§’è—¤ äº®ï¼Œã€ŒRe: ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã¨ãƒ‡ã‚£ã‚¹ãƒˆãƒªãƒ“ãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã«ã¤ã„ã¦ã€ï¼Œ
  æŽ²ç¤ºæ¿ã€Œ\TeX\ Q\ \&amp;\ Aã€ï¼Œ2010/12/19ï¼Ž
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/55478.html}
 \bibitem{expl33} zrbabblerï¼Œã€ŒLaTeX3 ã¨ expl3 ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã€ï¼Œ
  ãƒ–ãƒ­ã‚°ã€Œãƒžã‚¯ãƒ­ãƒ„ã‚¤ãƒ¼ã‚¿ãƒ¼ã€å†…ï¼Œ2010/12/22ï¼Ž
  \url{https://zrbabbler.hatenablog.com/entry/20101222/1293050561}
  % æ—§ http://d.hatena.ne.jp/zrbabbler/20101222/1293050561
 \bibitem{strcmp} è§’è—¤ äº®ï¼Œã€ŒRe: e-pTeX 101231ã€ï¼Œ
  æŽ²ç¤ºæ¿ã€Œ\TeX\ Q\ \&amp;\ Aã€ï¼Œ2011/01/01ï¼Ž\\
  \url{https://oku.edu.mie-u.ac.jp/~okumura/texfaq/qa/55528.html}
 \bibitem{pdfse} Dora TeXï¼Œã€ŒRe: |\pdfshellescape|,
  |\lastnodechar| ã®å®Ÿè£…ã€ï¼Œ\TeX~Forumï¼Œ2014/11/19ï¼Ž
  \url{https://okumuralab.org/tex/mod/forum/discuss.php?d=1435#p8053}
 \bibitem{lnc} åŒ—å· å¼˜å…¸ï¼Œã€Œ|\lastnodechar| ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ã«ã¤ã„ã¦ã€ï¼Œ2014/12/15ï¼Ž\\
  \url{https://github.com/h-kitagawa/eptex-wiki/blob/main/lastnodechar/README.md}
 \bibitem{xe5} Joseph Wright, ``[XeTeX] |\(pdf)mdfivesum|'',
  2015/07/01,\\
  \url{http://tug.org/pipermail/xetex/2015-July/026044.html}
 \bibitem{15715} tat tsanï¼Œ
  ã€Œ[expl3 / e(u)ptex] 2015/07/15 ç‰ˆ expl3 ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ãŒã€(u)platex ã§é€šã‚‰ãªã„ã€ï¼Œ
  \TeX~Forumï¼Œ2015/07/26ï¼Ž\\
  \url{https://okumuralab.org/tex/mod/forum/discuss.php?d=1632}
 \bibitem{random} Joseph Wright, ``[tex-live] Random number primitives'',
  2016/11/12,\\
  \url{http://tug.org/pipermail/tex-live/2016-November/039436.html}
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  \url{https://github.com/texjporg/tex-jp-build/issues/170}
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