\usepackage[width=40\zw, lines=40,centering]{geometry}
\usepackage{amsmath,luacode,xcolor,luatexja-adjust}
\begin{document}
-% #1: null(TeX 既定) or profile(行の中身を考慮した行間測定)
-% #2: null(TeX 既定)
-% or step(行送りが \baselineskip で十分でなかった場合,
-% lineskip.step_factor * \baselineskip の倍数だけ広げて
-% 行間が \lineskip 以上になるようにする)
-\def\R#1#2{\directlua{luatexja.lineskip.setting('#1','#2')}%
+\def\R#1#2{\ltjenableadjust[profile=#1,linestep=#2]%
\noindent\fbox{\parbox{25\zw}{%
\baselineskip14pt\noindent
\setbox2=\vtop{\noindent\hsize20\zw\textcolor{cyan!30!white}{%
□□□□■□□□□■□□□□■□□□□■□□□□■□□□□■□□□□■□□□□■
□□□□■□□□□■□□□□■□□□□■
}}\dp2=0pt\rlap{\copy2}\par\vspace*{-\baselineskip}
-\textbf{#1, #2}\\
+\textbf{profile: #1, linestep: #2}\par
\vrule height 2pt depth 0pt width 10\zw\\
\vrule height 2pt depth 0pt width 10\zw\\
\the\baselineskip あああああああああああああああ\\
}}\newpage}
-\R{null}{null}
-\R{profile}{null}
-\R{null}{step}
-\R{profile}{step}
+\R{false}{false}
+\R{true}{false}
+\R{false}{true}
+\R{true}{true}
+
+\ltjgetparameter{linestep_factor}
+
+\ltjdisableadjust
+\def\R#1#2{\ltjenableadjust[profile=#1,priority=#2]%
+\noindent\fbox{\parbox[t]{20\zw}{%
+\baselineskip14pt\noindent
+\textbf{profile: #1, priority: #2}\par
+ \ltjsetparameter{xkanjiskip=.25\zw plus 20pt minus 20pt}
+ ああxあaaaあxあx\vrule height 30pt depth 30pt width 9.7\zw「\break
+ \vrule height 30pt depth 30pt width9.6\zw xあxあxあaaaああ「\break
+}}}
+
+\R{false}{false}%
+\R{true}{false}\\
+\R{false}{true}%
+\R{true}{true}%
+
+\ltjdisableadjust
+\ltjenableadjust[profile]
+
+\def\R#1{%
+ \fbox{\parbox[t]{130pt}{\lineskip1pt\textbf{#1pt (\texttt{lineskip}: \the\lineskip)}\\%
+ \noindent\vrule height 5pt depth 50pt width 45pt\kern30pt%
+ \vrule height 5pt depth 50pt width 30pt\\
+ \textcolor{red}{\kern\dimexpr45pt+#1pt\vrule height 50pt depth 5pt width20pt}%
+ \textcolor{blue}{\kern-40pt\vrule height 5pt depth 5pt width 60pt}%
+ }}\hskip0pt\ignorespaces
+}
+
+\newpage
+\texttt{profile\_hgap\_factor=\ltjgetparameter{profile_hgap_factor}}\par
+\noindent
+\R{0}\R{0.5}\R{1}\R{2}\R{8}\R{9}\R{10}
+
+
+\newpage
+\ltjsetparameter{profile_hgap_factor=2}
+\texttt{profile\_hgap\_factor=\ltjgetparameter{profile_hgap_factor}}\par
+\noindent
+\R{0}\R{0.5}\R{1}\R{2}\R{8}\R{9}\R{10}
\end{document}