Setting whether inserting \Param{xkanjiskip} is allowed before/after a \textbf{JAchar} whose character code is <chr\_code>.
The followings are allowed for <mode>:
\begin{description}
\item[0, \texttt{inhibit}] Insertion of \Param{xkanjiskip} is inhibited before the character, nor after the character.
Setting whether inserting \Param{xkanjiskip} is allowed before/after a \textbf{JAchar} whose character code is <chr\_code>.
The followings are allowed for <mode>:
\begin{description}
\item[0, \texttt{inhibit}] Insertion of \Param{xkanjiskip} is inhibited before the character, nor after the character.