+
+% lowest level
+\newif\if@ltj@lst@kanji
+\lst@AddToHook{InitVars}{\@ltj@lst@kanjifalse}
+
+\def\lst@AppendLetter{%
+ \ltj@lst@setletterflag\lst@Append}
+\def\lst@AppendOther{%
+ \lst@ifletter\lst@Output\lst@letterfalse\fi\@ltj@lst@kanjifalse
+ \futurelet\lst@lastother\lst@Append}
+
+\def\ltj@lst@setletterflag{%
+ \lst@ifletter
+ \if@ltj@lst@kanji\lst@Output\@ltj@lst@kanjifalse\fi
+ \else
+ \lst@lettertrue\if@ltj@lst@kanji\@ltj@lst@kanjifalse\else\lst@OutputOther\fi
+ \fi}
+
+\def\ltj@lst@setkanjiflag{%
+ \lst@ifletter
+ \lst@Output
+ \else
+ \if@ltj@lst@kanji\else\lst@OutputOther\fi\lst@lettertrue
+ \fi}
+
+\def\ltj@lst@setopenflag{%
+ \lst@ifletter
+ \lst@letterfalse\lst@Output
+ \else
+ \if@ltj@lst@kanji\else\lst@OutputOther\fi
+ \fi\@ltj@lst@kanjitrue}
+
+\def\ltj@lst@setcloseflag{%
+ \lst@ifletter\else\lst@lettertrue\fi\@ltj@lst@kanjitrue}
+
+% Processing Japanese characters
+\def\ltj@lst@ProcessJALetter#1{%
+ \lst@whitespacefalse
+ \ifnum\ltjgetparameter{jacharrange}{\ltjgetparameter{chartorange}{`#1}}=0
+ \ifnum\ltjgetparameter{postbreakpenalty}{`#1}>0
+ \ltj@lst@setopenflag % 開き括弧類
+ \else
+ \ifnum\ltjgetparameter{prebreakpenalty}{`#1}>0
+ \ltj@lst@setcloseflag % 閉じ括弧類,句読点
+ \else
+ \ltj@lst@setkanjiflag % 通常の和文文字
+ \fi\fi
+ \advance\lst@length\@ne % 和文文字は通常の2倍の幅
+ \else
+ \ltj@lst@setletterflag
+ \fi
+ \lst@Append#1}
+
+% 半角カナ処理命令
+\def\ltj@lst@ProcessJALetterHalf#1{%
+ \lst@whitespacefalse
+ \ifnum\ltjgetparameter{jacharrange}{\ltjgetparameter{chartorange}{`#1}}=0
+ \ifnum\ltjgetparameter{postbreakpenalty}{`#1}>0
+ \ltj@lst@setopenflag % 開き括弧類
+ \else
+ \ifnum\ltjgetparameter{prebreakpenalty}{`#1}>0
+ \ltj@lst@setcloseflag % 閉じ括弧類
+ \else
+ \ltj@lst@setkanjiflag % 通常の和文文字
+ \fi\fi
+ % 半角カナは欧文文字と同じ幅
+ \else
+ \ltj@lst@setletterflag
+ \fi
+ \lst@Append#1}
+
+% 漢字用異体字セレクタ命令
+\def\ltj@lst@ProcessIVS#1{%
+ \lst@whitespacefalse
+ \if@ltj@lst@vsraw
+ \lst@Append#1\advance\lst@length\m@ne
+ \else
+ \lst@TrackNewLines\lst@OutputLostSpace \lst@PrintToken
+ \setbox\@tempboxa\hbox to 2\lst@width{\hss
+ \expandafter\expandafter\expandafter\ltj@lst@vscmd
+ \expandafter{\the\numexpr`#1-"E00EF\relax}%"
+ \hss}%
+ \lst@CalcLostSpaceAndOutput\lst@whitespacefalse
+ \fi
+}
+
+% Variation Selector
+\def\ltj@lst@ProcessVS#1{%
+ \lst@whitespacefalse
+ \if@ltj@lst@vsraw
+ \lst@Append#1\advance\lst@length\m@ne
+ \else
+ \lst@TrackNewLines\lst@OutputLostSpace \lst@PrintToken
+ \setbox\@tempboxa\hbox to 2\lst@width{\hss
+ \expandafter\expandafter\expandafter\ltj@lst@vscmd
+ \expandafter{\the\numexpr`#1-"FDFF\relax}%"
+ \hss}%
+ \lst@CalcLostSpaceAndOutput\lst@whitespacefalse
+ \fi
+}
+
+
+% 半角カナ,異体字セレクタはアクティブ化
+\def\ltj@@listing@jpsetN#1#2#3{% for (not large) range
+ \@tempcnta=\numexpr#1-1\relax\@tempcntb=\numexpr 1+#2\relax