+\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}
+