パッケージやクラスを表す．
%</ja>
%<*en>
-\item In this document, natural numbers start from~0.
+\item In this document, natural numbers start from~zero.
+ $\omega$ denotes the set of all natural numbers.
%</en>
%<*ja>
-\item 本ドキュメントでは，自然数は0から始まる．
+\item 本ドキュメントでは，自然数は0から始まる．自然数全体の集合は$\omega$と表記する．
%</ja>
\end{itemize}
%<*en>
To use standard Japanese font settings easily, one can load \Pkg{luatexja-preset}
package with several options. This package provides functions in a part of
-\Pkg{otf} package and a part of \Pkg{PXchfon} package by Takayuki Yato,
+\Pkg{japanese-otf} package and a part of \Pkg{PXchfon} package by Takayuki Yato,
and loads \Pkg{luatexja-fontspec}, hence \Pkg{fontspec} internally.
If you need to pass some options to \Pkg{fontspec}, load \Pkg{fontspec} manually
%<*en>
-\subsection{\texttt{\textbackslash CID}, \texttt{\textbackslash UTF}, and macros in \Pkg{otf} package}
-Under \pLaTeX, \Pkg{otf} package (developed by Shuzaburo Saito) is
+\subsection{\texttt{\textbackslash CID}, \texttt{\textbackslash UTF}, and macros in \Pkg{japanese-otf} package}
+Under \pLaTeX, \Pkg{japanese-otf} package (developed by Shuzaburo Saito) is
used for typesetting characters which is in Adobe-Japan1-6 CID but not
in JIS~X~0208. Since this package is widely used, \LuaTeX-ja
-supports some of functions in \Pkg{otf} package.
+supports some of functions in \Pkg{japanese-otf} package.
If you want to use these functions, load \Pkg{luatexja-otf} package.
%</en>
%<*ja>
\end{verbatim}
%<*en>
The argument to \textsf{jacharrange} parameter is a list of non-zero integer.
-Negative integer $-n$ in the list means that ``each character in the range~$n$ is a \textbf{ALchar}'', and positive integer $+n$ means
-that ``\dots\ is a \textbf{JAchar}''.
+Negative integer $-n$ in the list means that ``each character in the range~$n$ is an
+\textbf{ALchar}'',
+and positive integer $+n$ meansthat ``\dots\ is a \textbf{JAchar}''.
%</en>
%<*ja>
\textsf{jacharrange}パラメータの引数は非零の整数のリストである．
and \LuaTeX-ja can control these four kinds separately:
\begin{itemize}
\item
-\emph{Distinction between\textbf{JAchar} or \textbf{ALchar}}
+\emph{Distinction between \textbf{JAchar} or \textbf{ALchar}}
is controlled by using the character range, see Subsection~\ref{ssec-setrange}.
\item
\emph{Whether the character can be used in a control word}
{\large\char"#1#2#3#4}}\ (\texttt{U+#1#2#3#4})} %"
\leavevmode\hbox to 0pt{\hss\begin{tabular}{cccccc}
\toprule
-%<en>&\bf row&\bf column&\bf \pTeX&\bf \upTeX&\bf\LuaTeX-ja\\
+%<en>&\bf row&\bf col.&\bf \pTeX&\bf \upTeX&\bf\LuaTeX-ja\\
%<ja>&\bf 区&\bf 点&\bf \pTeX&\bf \upTeX&\fontseries{b}\selectfont\LuaTeX-ja\\
\midrule
\D 3000&1&1&N&N&Y\\
\end{tabular}\qquad
\begin{tabular}{cccccc}
\toprule
-%<en>&\bf row&\bf column&\bf \pTeX&\bf \upTeX&\bf\LuaTeX-ja\\
+%<en>&\bf row&\bf col.&\bf \pTeX&\bf \upTeX&\bf\LuaTeX-ja\\
%<ja>&\bf 区&\bf 点&\bf \pTeX&\bf \upTeX&\fontseries{b}\selectfont\LuaTeX-ja\\
\midrule
\D FF0F&1&31&N&N&Y\\
``GothicBBB-Medium''.
\emph{OpenType font features, such as ``{\tt +jp90}'',
-have no meaning in name-only fonts using this ``{\tt psft:}''\ prefix.
-This is because we can't expect what fonts are actually used by the PDF reader.}
+have no meaning in name-only fonts using ``{\tt psft:}''\ prefix,
+because we can't expect what fonts are actually used by the PDF reader.}
Note that \texttt{extend}~and~\texttt{slant} settings (see~above) are supported
with \texttt{psft} prefix, because they are only simple linear transformations.
%</en>
\end{itemize}
%</ja>
%<*en>
+\
+
Specifies the width of kern or glue which will be inserted
between characters in character class~$i$ and those in character class~$j$.
(see Subsection~\ref{ssec-adj}). Higher value means the glue is easy to shretch,
and is also easy to shrink.
-<ratio> is \dots
+<ratio> is also an optional value between $-1$ and 1. For example,
+Thw width of a glue between an ideographic full stop ``。''
+and a fullwidth middle dot ``・'' is three-fourth of fullwidth,
+namely halfwidth from the ideographic full stop, and
+quarter-width from the fullwidth middle dot. In this case,
+we specify <ratio> to
+\[
+ -1\cdot \frac{0.5}{0.5+0.25} + 1 \cdot \frac{0.25}{0.5+0.25} = -\frac13.
+\]
%</en>
% ToDo: English version.
%<*en>
-\ldots
+See Japanese version of this manual.
%</en>
%<*ja>
%<ja>\subsection{コールバック}
%<*en>
-Like \LuaTeX\ itself, \LuaTeX-ja also has callbacks. These callbacks can
+\LuaTeX-ja also has several callbacks. These callbacks can
be accessed via \verb+luatexbase.add_to_callback+ function and so on, as other callbacks.
%</en>
%<*ja>
%<en>\item[\texttt{luatexja.define\_jfont} callback]
%<ja>\item[\texttt{luatexja.define\_jfont}コールバック]
%<*en>
-This callback and the next callback form a pair, and you can assign letters which don't have
- fixed code points in Unicode to non-zero character classes.
+This callback and the next callback form a pair, and you can assign characters
+ which do not have fixed code points in Unicode to non-zero character classes.
This \texttt{luatexja.define\_font} callback is called just when new Japanese font is loaded.
%</en>
%<*ja>
%<*en>
The argument \verb+shift_info+ and the returned \verb+new_shift_info+ have
\texttt{down} and \texttt{left} fields, which are the amount of shifting
- down/left the character in a scaled-point.
+ down/left the character in a scaled point.
%</en>
%<*ja>
引数 \verb+shift_info+ と戻り値の \verb+new_shift_info+ は
\texttt{down}と\texttt{left}のフィールドを持ち，これらの値は
-文字の下／左へのシフト量（スケールド・ポイント単位）である．
+文字の下／左へのシフト量（sp単位）である．
%</ja>
%<*en>
to prevent a line ends with this character.
\pTeX\ has following restrictions on \verb+\prebreakpenalty+ and \verb+\postbreakpenalty+,
but they don't exist in \LuaTeX-ja:
-\dots
+\begin{itemize}
+ \item Both \verb+\prebreakpenalty+ and \verb+\postbreakpenalty+ cannot be set
+for the same character.
+ \item We can set \verb+\prebreakpenalty+ and \verb+\postbreakpenalty+ up to 256~characters.
+\end{itemize}
%</en>
\item[\Param{jatextfont}\,=\{<jfam>,<jfont\_cs>\}$^\ast$]
ある．
%</ja>
-\begin{LTXexample}
+\begin{LTXexample}[width=0.4\textwidth]
\jfont\g=file:KozMinPr6N-Regular.otf:jfm=test \g
\fbox{\hbox{あウあ\inhibitglue ウ}}
\inhibitglue\par\noindent あ1
\end{verbatim}
does
\begin{quote}
-If the current Japanese font is \verb+\hoge+, \texttt{U+3000}-\texttt{U+30FF}
+If the current Japanese font is \verb+\hoge+, \texttt{U+3000}--\texttt{U+30FF}
and characters in class~1 (ideographic opening brackets)
are typeset by \verb+\piyo+.
\end{quote}
\ltjdeclarealtfont\hoge\piyo{"3000-"30FF, {-1}-{-1}}
\end{verbatim}
は「\verb+\hoge+ を利用しているとき，
-\texttt{U+3000}-\texttt{U+30FF}と
+\texttt{U+3000}--\texttt{U+30FF}と
文字クラス1（開き括弧類）中の文字だけは \verb+\piyo+ を用いる」
ことを設定する．\verb+{-1}-{-1}+ という変わった指定の仕方をしているのは，
普通に \texttt{-1} と指定したのでは正しく$-1$と読み取られないという
%</ja>
\begin{cslist}%
+\par\smallskip\par\hskip-\leftskip{\bfseries%
+%<ja>追加の長さ変数達
+%<en>additonal dimensions
+}\par
+
+%<*en>
+Like \pLaTeXe, \LuaTeX-ja defines the following dimensions
+for information of current Japanese font:
+%</en>
+%<*ja>
+\pLaTeXe と同様に，\LuaTeX-jaは「現在の和文フォントの情報」を格納する長さ変数
+%</ja>
+{\let\item=\origitem
+\begin{quote}
+ \verb+\cht+~(height), \verb+\cdp+~(depth), \verb+\cHT+~(sum of former two),\\
+ \verb+\cwd+~(width), \verb+\cvs+~(lineskip), \verb+\chs+~(equals to \verb+\cwd+)
+\end{quote}}
+%<en>and its \verb+\normalsize+ version:
+%<ja>と，その \verb+\normalsize+ 版である
+{\let\item=\origitem
+\begin{quote}
+ \verb+\Cht+~(height), \verb+\Cdp+~(depth),
+ \verb+\Cwd+~(width), \\\verb+\Cvs+~(equals to \verb+\baselineskip+),
+ \verb+\Chs+~(equals to \verb+\cwd+)%
+%<en>.
+\end{quote}}
+%<*ja>
+を定義している．なお，\verb+\cwd+ と \verb+\zw+，また
+\verb+\cHT+ と \verb+\zh+ は一致しない可能性がある．なぜなら，
+\verb+\cwd+,~\verb+\cHT+ は「あ」の寸法から決定されるのに対し，
+\verb+\zw+ と \verb+\zh+ はJFMに指定された値に過ぎないからである．
+%</ja>
+%<*en>
+Note that \verb+\cwd+~and~\verb+\cHT+ may differ from \verb+\zw+~and~\verb+\zh+
+respectively.
+On the one hand the former dimensions are determined from the character ``あ'',
+but on the other hand \verb+\zw+~and~\verb+\zh+ are specified by JFM.
+%</en>
+
+
\item[DeclareYokoKanjiEncoding\{<encoding>\}\{<text-settings>\}\{<math-settings>\}]
%<*en>
The above 3~commands are just the counterparts for \verb+\DeclareFontEncodingDefaults+ and~others.
%</en>
%<*ja>
-上記3つのコマンドはちょうど \verb+DeclareFontEncodingDefaults+ などに対応するものである．
+上記3つのコマンドはちょうど \verb+\DeclareFontEncodingDefaults+ などに対応するものである．
%</ja>
\item[reDeclareMathAlphabet\{<unified-cmd>\}\{<al-cmd>\}\{<ja-cmd>\}]
\item <al-cmd>,~<ja-cmd>は既に定義されていなければならない．
\verb+\reDeclareMathAlphabet+\\の後に
両命令の内容を再定義しても，<unified-cmd>の内容にそれは反映されない．
-\item <al-cmd>,~<ja-cmd>に\verb+\@mathrm+などと\texttt{@}をつけた命令を指定した時の動作は保証できない．
+\item <al-cmd>,~<ja-cmd>に\verb+\@mathrm+などと \texttt{@} をつけた命令を指定した時の動作は保証できない．
\end{itemize}}
%</ja>
-\item[DeclareRelationFont\{<ja-encoding>\}\{<ja-family>\}\{<ja-series>\}\{<ja-shape>\}\\
+\item[DeclareRelationFont\{<ja-encoding>\}\{<ja-family>\}\{<ja-series>\}\{<ja-shape>\}\\*
\null\hfill\{<al-encoding>\}\{<al-family>\}\{<al-series>\}\{<al-shape>\}]
%<*en>
This command sets the ``accompanied'' alphabetic font family (given by the latter 4~arguments)
Like \verb+\fontfamily+, \verb+\selectfont+ is required to take an effect.
%</en>
%<*ja>
-現在の欧文フォントエンコーディング／ファミリ／…… を，
+ç\8f¾å\9c¨ã\81®æ¬§æ\96\87ã\83\95ã\82©ã\83³ã\83\88ã\81®ã\82¨ã\83³ã\82³ã\83¼ã\83\87ã\82£ã\83³ã\82°ï¼\8fã\83\95ã\82¡ã\83\9fã\83ªï¼\8fâ\80¦â\80¦ ã\82\92ï¼\8c
\verb+\DeclareRelationFont+ か \verb+\SetRelationFont+ で指定された
現在の和文フォントファミリに対応する「従属欧文」フォントファミリに変更する．
\verb+\fontfamily+ のように，有効にするためには \verb+\selectfont+ が必要である．
%</ja>
\item[adjustbaseline]
-\ldots
+%<*en>
+In \pLaTeXe, \verb+\adjustbaseline+ sets \verb+\tbaselineshift+
+to match the vertical center of ``M'' and that of ``あ'' in vertical typesetting:
+\[
+\text{\ttfamily \textbackslash tbaselineshift} \leftarrow
+\frac{(h_{\text{M}}+d_{\text{M}}) - (h_{\text{あ}}+d_{\text{あ}})}2
+ + d_{\text{あ}} - d_{\text{M}},
+\]
+where $h_{a}$~and~$d_{a}$ denote the height of ``$a$'' and the depth, respectively.
+
+Current \LuaTeX-ja does not support vertical typesetting, so
+this \verb+\adjustbaseline+ has almost no effect.
+%</en>
+%<*ja>
+\pLaTeXe では，\verb+\adjustbaseline+ は縦書時に「M」と「あ」の中心線を一致させるために，
+\verb+\tbaselineshift+ を設定する役割を持っていた：
+\[
+\text{\ttfamily \textbackslash tbaselineshift} \leftarrow
+\frac{(h_{\text{M}}+d_{\text{M}}) - (h_{\text{あ}}+d_{\text{あ}})}2
+ + d_{\text{あ}} - d_{\text{M}},
+\]
+ここで，$h_{a}$,~$d_{a}$はそれぞれ「$a$」の高さ・深さを表す．
+
+現在の\LuaTeX-jaは縦書きをサポートしていないので，この \verb+\adjustbaseline+ は
+ほとんど何もしていない．
+%</ja>
\item[fontfamily\{<family>\}]
%<*en>
\section{Addons}
\LuaTeX-ja has several addon packages.
These addons are written as \LaTeX\ packages, but
-\Pkg{luatexja-otf}~and~\Pkg{luatexja-adjust} can be loaded in plain \LuaTeX
+\Pkg{luatexja-otf} and~\Pkg{luatexja-adjust} can be loaded in plain \LuaTeX\
by \verb+\input+.
%</en>
%<*ja>
\item[JFM-var=<name>] \
%<*en>
-These 3 font features correspond to \texttt{cid}, \texttt{jfm} and
+These 3 keys correspond to \texttt{cid}, \texttt{jfm} and
\texttt{jfmvar} keys for \verb+\jfont+ respectively.
\texttt{CID} is effective only when with \texttt{NoEmbed}
described below.
\item[NoEmbed]
%<*en>
-By specifying this font feature, one can use ``name-only'' Japanese font which
+By specifying this key, one can use ``name-only'' Japanese font which
will not be embedded in the output PDF file. See Subsection~\ref{ssec-psft}.
%</en>
%<*ja>
%<*en>
-...
+(see Japanese version of this manual)
%</en>
%<*ja>
\pTeX では，行長調整において優先度の概念が存在しなかったため，図
\item[\textbackslash ltjenableadjust]
優先順位付きの行長調整を有効化する．
-\item[\textsf{adjust}=<bool>] \verb+\ltjsetparameter+ で指定可能な追加パラメータであり，
+\item[\textsf{adjust}\,=<bool>] \verb+\ltjsetparameter+ で指定可能な追加パラメータであり，
<bool>が\textit{true}なら \verb+\ltjenableadjust+ を，
そうでなければ \verb+\ltjdisableadjust+ を実行する．
\dim{ltj@zw}
%<*en>
A temporal register for the ``full-width'' of current Japanese font.
+The command \verb+\zw+ sets this register to the correct value, and
+``return'' this register itself.
%</en>
%<*ja>
現在の和文フォントの「全角幅」を保持する一時レジスタ．
+\verb+\zw+ 命令は，このレジスタを適切な値に設定した後，
+「このレジスタ自体を返す」．
%</ja>
\dim{ltj@zh}
%<*en>
A temporal register for the ``full-height'' (usually the sum of height of imaginary body and its depth) of current Japanese font.
+The command \verb+\zh+ sets this register to the correct value, and
+``return'' this register itself.
%</en>
%<*ja>
現在の和文フォントの「全角高さ」（通常，高さと深さの和）を保持する一時レジスタ．
+\verb+\zh+ 命令は，このレジスタを適切な値に設定した後，
+「このレジスタ自体を返す」．
%</ja>
\attr{jfam}
Penalties inserted for the word-wrapping process (\emph{kinsoku shori}) of Japanese characters.
%</en>
%<ja>禁則処理のために挿入されたペナルティ．
-\item[$(\textit{from\_jfm}-2)$--$(\textit{from\_jfm}+2)$~(4--8)]
+\item[\mathversion{bold}$(\textit{from\_jfm}-2)$--$(\textit{from\_jfm}+2)$~(4--8)]
%<en>Glues/kerns from JFM.
%<ja>JFM由来のグルー／カーン．
\item[\textit{kanji\_skip}~(9), \textit{kanji\_skip\_jfm}~(10)]
\item[save\_cache\_luc(<filename>, <data>{[, <serialized\_data>]})]\
Same as \texttt{save\_cache}, except that only the binary cache is updated.
-The third argument <serialized data> is not usually given.
+The third argument <serialized\_data> is not usually given.
But if this is given, it is treated as a string representation of <data>.
\item[load\_cache(<filename>, <outdate>)]
if and only if the updated cache is found.
\end{list}
%</en>
+%<*ja>
+\subsection{内部命令}
+\LuaTeX-jaにおけるキャッシュ管理は，\texttt{luatexja.base}~(\texttt{ltj-base.lua})に
+実装しており，以下の3関数が公開されている．
+ここで，<filename>は保存するキャッシュのファイル名を\emph{拡張子なしで}指定する．
+\begin{list}{}%
+{\def\makelabel#1{\ttfamily#1}}
+\item[save\_cache(<filename>, <data>)]
+nilでない<data>をキャッシュ<filename>に保存する．
+テキスト形式の<filename>\texttt{.lua}のみならず，
+そのバイナリ版も作成/更新される．
+
+\item[save\_cache\_luc(<filename>, <data>{[, <serialized\_data>]})]\
+
+\texttt{save\_cache}と同様だが，バイナリキャッシュのみが更新される．
+第3引数<serialized\_data>が与えられた場合，それを
+<data>の文字列化表現として使用する．
+そのため，<serialized\_data>は普通は指定しないことになるだろう．
+
+\item[load\_cache(<filename>, <outdate>)]
+キャッシュ<filename>を読み込む．
+<outdate>は1引数（キャッシュの中身）をとる関数であり，
+その戻り値は「キャッシュの更新が必要」かどうかを示すブール値でないといけない．
+
+\texttt{load\_cache}は，まずバイナリキャッシュ<filename>\texttt{.\{luc|lub\}}を
+読みこむ．もしその内容が「新しい」，つまり<outdate>の評価結果が \texttt{false} なら
+\texttt{load\_cache}はこのバイナリキャッシュの中身を返す．
+もしバイナリキャッシュが見つからなかったか，「古すぎる」ならばテキスト版
+ <filename>\texttt{.lua}を読み込み，その値を返す．
+
+以上より，\texttt{load\_cache}自体がnilでない値を返すのは，ちょうど「新しい」キャッシュが
+見つかった場合である．
+\end{list}
+%</ja>
\begin{thebibliography}{99}
\addcontentsline{toc}{section}{\refname}
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