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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /language/japanese/jlreq/jlreq-helpers.sty
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+% エンジン非依存のマクロ集
+
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{jlreq-helpers}[2018/08/15 jlreq-helpers]
+\RequirePackage{xkeyval,etoolbox}
+
+%. helper1
+\newcount\jlreq@tempcnta
+\newcount\jlreq@tempcntb
+\newcount\jlreq@tempcntc
+\newdimen\jlreq@tempdima
+\newdimen\jlreq@tempdimb
+\newdimen\jlreq@tempdimc
+\newskip\jlreq@tempskipa
+\newskip\jlreq@tempskipb
+\newskip\jlreq@tempskipc
+\newif\ifjlreq@tempa
+\newif\ifjlreq@tempb
+\newif\ifjlreq@tempc
+\newbox\jlreq@tempboxa
+\newbox\jlreq@tempboxb
+\newbox\jlreq@tempboxc
+% 計算結果を返すための変数
+\newdimen\jlreq@resultdimen
+\newskip\jlreq@resultskip
+\newbox\jlreq@resultbox
+\newif\ifjlreq@result
+\newcount\jlreq@resultcnt
+
+\def\jlreq@uniqtoken{\jlreq@uniqtoken}
+\def\jlreq@endmark{\jlreq@endmark}
+\long\def\jlreq@deleteuntileendmark#1\jlreq@endmark{}
+
+\def\jlreq@expandafter@ii{\expandafter\expandafter\expandafter}
+\edef\jlreq@expandafter@iii{\expandonce{\jlreq@expandafter@ii}\noexpand\expandafter\expandonce{\jlreq@expandafter@ii}}
+\edef\jlreq@expandtwice#1{\expandonce{\jlreq@expandafter@ii}\noexpand\unexpanded\expandonce{\jlreq@expandafter@ii}{#1}}
+\edef\jlreq@expand@three#1{\expandonce{\jlreq@expandafter@iii}\noexpand\unexpanded\expandonce{\jlreq@expandafter@iii}{#1}}
+
+% \jlreq@getfirsttoken#1\jlreq@uniqtoken{}\jlreq@endmark@の形で使う
+% 二回展開すると,#1の先頭(ただし空白は無視される)を取り出す.#1が空の場合は\jlreq@uniqtoken,先頭が{の場合は\bgroupとなる
+\def\jlreq@endmark@{\jlreq@endmark@} % \jlreq@getfirsttokenだけのためのendmark
+\long\def\jlreq@getfirsttoken#1#{\jlreq@getfirsttoken@#1\bgroup\jlreq@endmark@}
+\long\def\jlreq@getfirsttoken@#1#2\jlreq@endmark@#3\jlreq@endmark@{#1}
+% 与えられたトークン列が空か(展開はしないでチェック)
+\long\def\jlreq@ifempty#1{\expandafter\ifx\expandafter\relax\detokenize{#1}\relax\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi}
+% #1の先頭トークンが#2か(ただし#1が空ならば#2=\jlreq@uniqtoken,#1={ならば#2=\bgroupでTRUEとなる)
+\long\edef\jlreq@iffirsttoken#1#2{%
+ % スペースチェック
+ \unexpanded{\expandafter\expandafter\expandafter\jlreq@deleteuntileendmark\expandafter\ifx\expandafter}\expandonce{\space}\noexpand\detokenize{#1}\unexpanded{\@undefined\jlreq@endmark\expandafter\@firstoftwo\else\jlreq@endmark\expandafter\@secondoftwo\fi}{%
+ \noexpand\ifx\expandonce{\space}#2\unexpanded{\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi}%
+ }{%
+ \noexpand\jlreq@iffirsttoken@ignorespaces{#1}{#2}%
+ }%
+}
+% こちらは先頭のスペースを読み飛ばす
+\long\def\jlreq@iffirsttoken@ignorespaces#1#2{%
+ \expandafter\expandafter\expandafter\ifx\jlreq@getfirsttoken#1\jlreq@uniqtoken{}\jlreq@endmark@#2\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+}
+
+% #1が\jlreq@endmarkか
+\long\def\jlreq@ifendmark#1{\jlreq@iffirsttoken{#1}{\jlreq@endmark}}
+
+% 条件.\jlreq@if{ifnum\@count=1 \fi}{<TRUE>}{<FALSE>}みたいに使う
+\def\jlreq@if@endmark{\jlreq@if@endmark}
+\def\jlreq@if#1{\jlreq@if@#1\jlreq@if@endmark}
+\@gobbletwo\if\if
+\def\jlreq@if@#1\fi\jlreq@if@endmark{#1\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi}
+
+% #1の先頭が引数なしのマクロか
+\long\def\jlreq@ifmacro@noargument#1{%
+ \jlreq@ifempty{#1}{\@secondoftwo}{%
+ \jlreq@iffirsttoken{#1}{ }{\@secondoftwo}{%
+ \expandafter\expandafter\expandafter\jlreq@ifmacro@noargument@\jlreq@getfirsttoken#1\jlreq@uniqtoken{}\jlreq@endmark@
+}}}
+\long\def\jlreq@ifmacro@noargument@#1{\expandafter\jlreq@ifmacro@noargument@@\expandafter{\meaning #1}}
+\edef\jlreq@do{%
+ \unexpanded{\def\jlreq@ifmacro@noargument@@}##1{\noexpand\jlreq@ifmacro@noargument@@@##1\expandonce{\detokenize{macro:->}}\noexpand\jlreq@endmark}
+ \unexpanded{\def\jlreq@ifmacro@noargument@@@}##1\expandonce{\detokenize{macro:->}}##2\noexpand\jlreq@endmark{\noexpand\jlreq@ifempty{##1}}
+}
+\jlreq@do
+
+% #1(skipレジスタ)が0か(展開不可).
+\newcommand*\jlreq@ifgluezero[1]{%
+ \begingroup
+ \edef\@tempa{\the#1}%
+ \edef\@tempb{\detokenize{0.0pt}}%
+ \edef\jlreq@do{\ifx\@tempa\@tempb\noexpand\@firstoftwo\else\noexpand\@secondoftwo\fi}%
+ \expandafter\endgroup
+ \jlreq@do
+}
+
+% #1が#2で終わるか(展開不可)
+\newcommand*{\jlreq@ifendswith}[2]{%
+ \jlreq@ifempty{#2}{\@firstoftwo}{%
+ \begingroup
+ \def\jlreq@tempa##1#2\jlreq@uniqtoken##2\jlreq@endmark{%
+ \edef\jlreq@do{\jlreq@ifempty{##2}{\noexpand\@secondoftwo}{\noexpand\@firstoftwo}}%
+ }%
+ \jlreq@tempa#1\jlreq@uniqtoken#2\jlreq@uniqtoken\jlreq@endmark
+ \expandafter\endgroup
+ \jlreq@do
+ }%
+}
+% #1が#2で始まるか(展開不可)
+\newcommand*{\jlreq@ifstartswith}[2]{%
+ \jlreq@ifempty{#2}{\@firstoftwo}{%
+ \jlreq@ifempty{#1}{\@secondoftwo}{%
+ \begingroup
+ \def\jlreq@tempa##1#2##2\jlreq@endmark{%
+ \edef\jlreq@do{\jlreq@ifempty{##1}{\noexpand\@firstoftwo}{\noexpand\@secondoftwo}}%
+ }%
+ \jlreq@tempa#1#2\jlreq@endmark
+ \expandafter\endgroup
+ \jlreq@do
+ }%
+ }%
+}
+% #1が#2を含むか(展開不可){}内に#2があってもFALSE判定.
+\newcommand*{\jlreq@ifcontains}[2]{%
+ \jlreq@ifempty{#2}{\@firstoftwo}{%
+ \begingroup
+ \def\jlreq@tempa##1#2##2\jlreq@endmark{%
+ \edef\jlreq@do{\jlreq@ifempty{##2}{\noexpand\@secondoftwo}{\noexpand\@firstoftwo}}%
+ }%
+ \jlreq@tempa#1#2\jlreq@endmark
+ \expandafter\endgroup
+ \jlreq@do
+ }%
+}
+
+% @removeelementの括弧があっても動くかもしれない版
+% #2から#1を消して#3に入れる
+\newcommand*{\jlreq@helper@removeelement}[3]{%
+ \begingroup
+ \edef\jlreq@tempa{\unexpanded{#1}}% 消したいやつ
+ \def\jlreq@tempb{}% 消していない分を放り込んでいく
+ \jlreq@tempatrue% 最初の\jlreq@tempbへの追加か.
+ \jlreq@helper@removeelement@#2,\jlreq@endmark,%
+ \edef\jlreq@do{\unexpanded{\def#3}{\expandonce{\jlreq@tempb}}}%
+ \expandafter\endgroup
+ \jlreq@do
+}
+\def\jlreq@helper@removeelement@#1,{%
+ \jlreq@ifendmark{#1}{}{%
+ \edef\@tempa{\unexpanded{#1}}%
+ \ifx\jlreq@tempa\@tempa\expandafter\@gobble\else\expandafter\@firstofone\fi{%
+ \eappto\jlreq@tempb{\ifjlreq@tempa\else,\fi\unexpanded{#1}}%
+ \jlreq@tempafalse
+ }%
+ \jlreq@helper@removeelement@
+ }%
+}
+
+% 空白を無視しない\@ifnextchar
+\newcommand{\jlreq@ifnextchar}[3]{%
+ \let\reserved@d=#1%
+ \edef\reserved@a{\unexpanded{#2}}%
+ \edef\reserved@b{\unexpanded{#3}}%
+ \futurelet\jlreq@nextchar\jlreq@ifnextchar@
+}
+\def\jlreq@ifnextchar@{%
+ \ifx\jlreq@nextchar\reserved@d\let\reserved@b\reserved@a\fi
+ \reserved@b
+}
+% 空白を無視しない\@ifsart
+\newcommand*{\jlreq@ifstar}[2]{\jlreq@ifnextchar *{\edef\reserved@a*{\unexpanded{#1}}\reserved@a}{#2}}
+% カンマで区切って,その前と後ろを\jlreq@resulta,\jlreq@resultbに入れる
+% もしカンマがない場合は\ifjlreq@resultがfalseになる.
+\newcommand*{\jlreq@helper@dividebycomma}[1]{\jlreq@helper@dividebycomma@#1,\jlreq@endmark}
+\def\jlreq@helper@dividebycomma@#1,#2\jlreq@endmark{%
+ \jlreq@helper@trim{#1}{\jlreq@resulta}%
+ \jlreq@helper@trim{#2}{\jlreq@resultb}%
+ \jlreq@if{\ifx\jlreq@resultb\@empty\fi}{%
+ \jlreq@resultfalse
+ }{%
+ \jlreq@resulttrue
+ \expandafter\def\expandafter\jlreq@resultb\expandafter{\jlreq@helper@removelastcomma#2\jlreq@endmark}%
+ \expandafter\jlreq@helper@trim\expandafter{\jlreq@resultb}{\jlreq@resultb}%
+ }%
+}
+\def\jlreq@helper@removelastcomma#1,\jlreq@endmark{#1}
+
+% vbox #1の最後を\jlreq@resultboxに入れる
+% #1の最後の行は消える
+\newcommand*{\jlreq@getlastbox}[1]{%
+ \setbox#1=\vbox{\unvbox#1\relax
+ \unskip\unskip\unpenalty\global\setbox\jlreq@resultbox=\lastbox}%
+ \ifhbox\jlreq@resultbox
+ \global\setbox\jlreq@resultbox=\hbox{%
+ \unhbox\jlreq@resultbox\unskip\unskip\unpenalty}%
+ \else
+ \global\setbox\jlreq@resultbox=\copy\voidb@x
+ \fi
+}
+
+% 簡易なkeyvalのパース.
+% \jlreq@parsekeyval*[family=jlreq@key]{ % *ありは\setkeys*を使う
+% {key}{\def\val{#1}}
+% {key1,key2}{\def\val{#1}} % key1=valとkey2=valを受け付けるようになる
+% *{key}{\def\val{#1}} % デフォルト値を空文字列にする
+% {key}[choice1,choice2]{\def\valchoice{#1}}
+%}{parse対象}
+\newcommand*{\jlreq@parsekeyval}{%
+ \@ifstar{\jlreq@helper@parsekeyval@{*}}{\jlreq@helper@parsekeyval@{}}%
+}
+\def\jlreq@helper@parsekeyval@#1{%
+ \@ifnextchar[{\jlreq@helper@parsekeyval@@{#1}}{\jlreq@helper@parsekeyval@@{#1}[jlreq@key]}%
+}
+\long\def\jlreq@helper@parsekeyval@@#1[#2]#3#4{%
+ \begingroup
+ \def\jlreq@do{}% \setkeysの結果処理がここに入れられる(よってループ内で利用不可)
+ \jlreq@helper@parsekeyval@@@{#2}#3{\jlreq@endmark}%
+ \setkeys#1{#2}{#4}%
+ \expandafter\endgroup
+ \jlreq@do
+}
+\def\jlreq@helper@parsekeyval@@@#1#2#{%
+ \jlreq@iffirsttoken@ignorespaces{#2}{*}{%
+ \jlreq@helper@parsekeyval@@@definekeywithdefault{#1}%
+ }{%
+ \jlreq@helper@parsekeyval@@@@{#1}%
+ }%
+}
+\long\def\jlreq@helper@parsekeyval@@@@#1#2{%
+ \jlreq@ifendmark{#2}{}{%
+ \@ifnextchar[{\jlreq@helper@parsekeyval@@@choicekey{#1}{#2}}{\jlreq@helper@parsekeyval@@@definekey{#1}{#2}}%
+ }%
+}
+\long\def\jlreq@helper@parsekeyval@@@choicekey#1#2[#3]#4{%
+ \@for\@tempa:=#2\do{%
+ \edef\jlreq@next{\unexpanded{\define@choicekey{#1}}{\expandonce{\@tempa}}}%
+ \jlreq@next{#3}{\eappto\jlreq@do{\unexpanded{#4}}}%
+ }%
+ \jlreq@helper@parsekeyval@@@{#1}%
+}
+\long\def\jlreq@helper@parsekeyval@@@definekeywithdefault#1#2#3{%
+ \@for\@tempa:=#2\do{%
+ \edef\jlreq@next{\unexpanded{\define@key{#1}}{\expandonce{\@tempa}}}%
+ \jlreq@next[]{\eappto\jlreq@do{\unexpanded{#3}}}%
+ }%
+ \jlreq@helper@parsekeyval@@@{#1}%
+}
+\long\def\jlreq@helper@parsekeyval@@@definekey#1#2#3{%
+ \@for\@tempa:=#2\do{%
+ \edef\jlreq@next{\unexpanded{\define@key{#1}}{\expandonce{\@tempa}}}%
+ \jlreq@next{\eappto\jlreq@do{\unexpanded{#3}}}%
+ }%
+ \jlreq@helper@parsekeyval@@@{#1}%
+}
+
+% キー指定しないkeyval(独自実装)
+% \jlreq@parsekeyval@nokey{<action>}{<parse対象>}
+% action内では#1=key, #2=val
+% \ifjlreq@parsekeyval@nokey@novalue{<true code>}{<false code>}でvalueがないか判定できる.
+% *つきは<parse対象>を一回だけ展開する.
+\def\jlreq@parsekeyval@nokey{\@ifstar{\jlreq@parsekeyval@nokey@{*}}{\jlreq@parsekeyval@nokey@{}}}
+\newcommand{\jlreq@parsekeyval@nokey@}[3]{%
+ \begingroup
+ \long\def\jlreq@do{}%
+ \long\def\jlreq@parsekeyval@nokey@execute##1##2{#2}%
+ \jlreq@ifempty{#1}{%
+ \jlreq@parsekeyval@nokey@i@wuniq\jlreq@uniqtoken#3,\jlreq@endmark,%
+ }{%
+ \expandafter\jlreq@parsekeyval@nokey@i@wuniq\expandafter\jlreq@uniqtoken#3,\jlreq@endmark,%
+ }%
+ \expandafter\endgroup
+ \jlreq@do
+}
+\long\def\jlreq@parsekeyval@nokey@i@wuniq#1,{\expandafter\jlreq@parsekeyval@nokey@i\expandafter{\@gobble#1}}
+\long\def\jlreq@parsekeyval@nokey@i#1{\jlreq@ifendmark{#1}{}{\jlreq@parsekeyval@nokey@ii@wuniq\jlreq@uniqtoken#1=\jlreq@endmark}}
+\long\def\jlreq@parsekeyval@nokey@ii@wuniq#1=#2\jlreq@endmark{\expandafter\jlreq@parsekeyval@nokey@ii\expandafter{\@gobble#1}{#2}}%
+\long\def\jlreq@parsekeyval@nokey@ii#1#2{%
+ \jlreq@ifempty{#2}{\jlreq@parsekeyval@nokey@iii{*}{#2}{#1}}{%
+ \edef\jlreq@tempa{%
+ \noexpand\jlreq@parsekeyval@nokey@iii{}{\jlreq@parsekeyval@nokey@removeequal{#2}}{\unexpanded{#1}}%
+ }%
+ \jlreq@tempa
+ }%
+}
+% valueが与えられていない場合は#1=*になる.そうでなければ#1は空
+\long\def\jlreq@parsekeyval@nokey@iii#1#2#3{%
+ \jlreq@remove@spaceandbracket{#2}{\jlreq@tempa}%
+ \jlreq@remove@spaceandbracket{#3}{\jlreq@tempb}%
+ \ifx\jlreq@tempb\@empty\else
+ \edef\@tempa{\noexpand\jlreq@parsekeyval@nokey@iv{#1}{\expandonce{\jlreq@tempb}}{\expandonce{\jlreq@tempa}}}%
+ \@tempa
+ \fi
+ \jlreq@parsekeyval@nokey@i@wuniq\jlreq@uniqtoken
+}
+\long\def\jlreq@parsekeyval@nokey@iv#1#2#3{%
+ \eappto\jlreq@do{%
+ \unexpanded{\let\ifjlreq@parsekeyval@nokey@novalue}\jlreq@ifempty{#1}{\noexpand\@secondoftwo}{\noexpand\@firstoftwo}%
+ \expandonce{\jlreq@parsekeyval@nokey@execute{#2}{#3}}%
+ }%
+}
+\long\def\jlreq@parsekeyval@nokey@removeequal#1{\jlreq@parsekeyval@nokey@removeequal@\jlreq@uniqtoken#1\jlreq@endmark}
+\long\def\jlreq@parsekeyval@nokey@removeequal@#1=\jlreq@endmark{\expandafter\unexpanded\expandafter{\@gobble#1}}
+
+% #1の先頭のスペースを削除し,#2に入れる.
+\long\def\jlreq@helper@trim#1#2{\edef#2{\jlreq@helper@trim@i{#1}}}
+\def\jlreq@do#1{% #1 = " "として後で実行
+ \long\def\jlreq@helper@trim@i##1{%
+ \jlreq@iffirsttoken{##1}{#1}%
+ % 先頭スペースの除去.{}を外さないために\jlreq@uniqtokenを前後にいったん挟む.
+ {\jlreq@helper@trim@ii##1\jlreq@uniqtoken\jlreq@endmark}%
+ % 後方スペースの除去.先頭に\jlreq@uniqtokenを加えて{}が外れるのを防ぐ.
+ {\jlreq@helper@trim@iii\jlreq@uniqtoken##1\jlreq@uniqtoken#1\jlreq@uniqtoken\jlreq@endmark}%
+ }
+ \long\def\jlreq@helper@trim@ii#1##1\jlreq@endmark{%
+ \expandafter\expandafter\expandafter\jlreq@helper@trim@i\jlreq@helper@trim@vi\jlreq@uniqtoken##1\jlreq@endmark
+ }
+ \long\def\jlreq@helper@trim@iii##1#1\jlreq@uniqtoken##2\jlreq@endmark{%
+ \jlreq@ifempty{##2}%
+ {\expandafter\jlreq@helper@trim@iv\jlreq@helper@trim@v##1\jlreq@endmark}%
+ {\jlreq@helper@trim@iii##1\jlreq@uniqtoken#1\jlreq@uniqtoken\jlreq@endmark}%
+ }%
+ \long\def\jlreq@helper@trim@iv##1{\expandafter\unexpanded\expandafter{\@gobble ##1}}
+ \long\def\jlreq@helper@trim@v##1\jlreq@uniqtoken\jlreq@endmark{{##1}}
+ \long\def\jlreq@helper@trim@vi##1\jlreq@uniqtoken\jlreq@endmark{\expandafter{\@gobble ##1}}
+}
+\jlreq@do{ }
+
+\long\def\jlreq@remove@spaceandbracket#1#2{%
+ \begingroup
+ \jlreq@helper@trim{#1}{\jlreq@tempa}%
+ \edef\jlreq@do{\unexpanded{\jlreq@remove@spaceandbracket@{#2}}\expandonce{\jlreq@tempa}\noexpand\jlreq@endmark}%
+ \expandafter\endgroup
+ \jlreq@do
+}
+\long\def\jlreq@remove@spaceandbracket@#1#2\jlreq@endmark{\edef#1{\unexpanded{#2}}}
+
+% \jlreq@switch{str}{
+% {str}{abcd}
+% {str1}{xyz}
+%}[default: input = #1] -> abcd
+%または
+%
+% \jlreq@switch{str}{
+% {str}{abcd}
+% {str1}{xyz}
+% {default} % ここは#1を受け付けない(パラメータトークンを受け付けたい場合のため).
+%} -> abcd
+% strは\edefで展開されるが,\jlreq@switch*の場合は展開されない.
+% 第一引数は\jlreq@tempaに入れておく.
+\long\def\jlreq@helper@switch@executeoption#1[#2]{%
+ \begingroup
+ \def\jlreq@do##1{#2}%
+ \expandafter\endgroup
+ \jlreq@do{#1}%
+}
+\long\def\jlreq@helper@removeoption[#1]{}
+\newcommand{\jlreq@switch}{\@ifstar{\jlreq@switch@{*}}{\jlreq@switch@{}}}
+\newcommand{\jlreq@switch@}[3]{%
+ \begingroup
+ \let\jlreq@do\@undefined
+ \edef\jlreq@tempa{\jlreq@ifempty{#1}{#2}{\unexpanded{#2}}}% ループ中ずっと保存する
+ \jlreq@helper@switch@{#1}#3\jlreq@endmark
+ \ifx\jlreq@do\@undefined
+ \edef\jlreq@do{\unexpanded{\jlreq@ifnextchar[{\jlreq@helper@switch@executeoption{#2}}{}}}%
+ \else
+ \appto\jlreq@do{\@ifnextchar[{\jlreq@helper@removeoption}{}}%
+ \fi
+ \expandafter\endgroup
+ \jlreq@do
+}
+\long\def\jlreq@helper@switch@#1#2{%
+ \jlreq@ifendmark{#2}{}{\jlreq@helper@switch@@{#1}{#2}}%
+}
+
+\long\def\jlreq@helper@switch@@#1#2#3{%
+ \jlreq@ifendmark{#3}{%
+ \edef\jlreq@do{\unexpanded{#2}}%
+ }{%
+ \edef\jlreq@tempb{\jlreq@ifempty{#1}{#2}{\unexpanded{#2}}}%
+ \jlreq@if{\ifx\jlreq@tempa\jlreq@tempb\fi}{%
+ \edef\jlreq@do{\unexpanded{#3}}%
+ \jlreq@deleteuntileendmark
+ }{%
+ \jlreq@helper@switch@{#1}%
+ }%
+ }%
+}
+
+% オレオレラベル……
+% \jlreq@reference@ref{ラベル名}{デフォルト値}
+\def\jlreq@reference@ref#1{\jlreq@if{\expandafter\ifx\csname jlreq@reference@#1\endcsname\fi}{\csname jlreq@reference@#1\endcsname}}
+% \jlreq@reference@label{ラベル名}{値}
+\def\jlreq@reference@label#1#2{\protected@write\@auxout{}{\string\@newl@bel{jlreq@reference}{#1}{#2}}}%
+\def\jlreq@reference@immediate@write#1#2{\immediate\write\@auxout{\string\@newl@bel{jlreq@reference}{#1}{#2}}}%
+\def\jlreq@reference@ifexist#1{\jlreq@if{\expandafter\ifx\csname jlreq@reference@#1\endcsname\fi}}
+
+% 自動生成されるラベル用の番号
+\newcount\jlreq@reference@count
+\jlreq@reference@count=0
+
+% 現在のページを得る
+\newcount\jlreq@currentpage
+\newcommand*{\jlreq@setcurrentpage}{%
+ \global\advance\jlreq@reference@count by 1
+ \jlreq@reference@label{jlreq@currentpage.\the\jlreq@reference@count}{\noexpand\arabic{page}}%
+ \global\jlreq@currentpage=\jlreq@reference@ref{jlreq@currentpage.\the\jlreq@reference@count}{\the\c@page}\relax
+}
+
+% 先頭にあるマクロを展開しまくった結果の先頭を#2に入れる.
+\newcommand{\jlreq@getfirsttoken@expandmacros}[2]{%
+ \jlreq@iffirsttoken{#1}{ }{\def#2{ }}{%
+ \jlreq@ifempty{#1}{\def#2{}}{%
+ \jlreq@ifmacro@noargument{#1}{%
+ \expandafter\jlreq@getfirsttoken@expandmacros\expandafter{#1}{#2}%
+ }{%
+ \expandafter\expandafter\expandafter\jlreq@getfirsttoken@expandmacros@\jlreq@getfirsttoken#1\jlreq@uniqtoken{}\jlreq@endmark@{#2}%
+ }%
+ }%
+ }%
+}
+\def\jlreq@getfirsttoken@expandmacros@#1#2{\def#2{#1}}
+
+\def\jlreq@helper@checktokenlist#1#2{%
+ \jlreq@ifendmark{#2}{\@firstoftwo}%
+ {%
+ \jlreq@if{\ifnum0#1{#2}>0 \fi}%
+ {\jlreq@helper@checktokenlist{#1}}%
+ {\expandafter\@secondoftwo\jlreq@deleteuntileendmark}%
+ }%
+}
+\def\jlreq@helper@chknumlist#1{\ifx#101\fi\ifx#111\fi\ifx#121\fi\ifx#131\fi\ifx#141\fi\ifx#151\fi\ifx#161\fi\ifx#171\fi\ifx#181\fi\ifx#191\fi}
+\def\jlreq@helper@chkfloatlist#1{\jlreq@helper@chknumlist{#1}\ifx#1.1\fi}
+% #1が[0-9\.]*に当てはまるか.
+\newcommand*{\jlreq@iffloat}[1]{\jlreq@helper@checktokenlist{\jlreq@helper@chkfloatlist}#1\jlreq@endmark}
+\newcommand*{\jlreq@ifnumber}[1]{\jlreq@helper@checktokenlist{\jlreq@helper@chknumlist}#1\jlreq@endmark}
+
+% \jlreq@ifprimitive#1#2#3: #1がprimitiveならば#2を,そうでなければ#3を実行する
+% (\if(pdf)primitiveを避けるようにしている.)
+\newcommand*{\jlreq@ifprimitive}[1]{%
+ \begingroup
+ \edef\@tempa{\string#1}%
+ \edef\@tempb{\meaning#1}%
+ \expandafter\endgroup
+ \ifx\@tempa\@tempb\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+}
+
+\newcommand*{\jlreq@helper@guessengine}{%
+ \jlreq@ifprimitive\directlua{%
+ \let\jlreq@result=l%
+ }{%
+ \jlreq@ifprimitive\ucs{%
+ \let\jlreq@result=u%
+ }{%
+ \let\jlreq@result=p%
+ }%
+ }%
+}
+
+% #1を\@undefinedに,既に\@undefinedならば#2{#1}を呼ぶ
+\newcommand*{\jlreq@helper@undefcs}[2]{%
+ \ifundef{#1}{#2{#1}}{\undef{#1}}%
+}
+% \if版
+\newcommand*{\jlreq@helper@undefif}[2]{%
+ \ifundef{#1}{#2{#1}}{%
+ \edef\@tempa{\expandafter\@gobble\string#1}%
+ \edef\@tempa{\expandafter\@gobbletwo\@tempa}%
+ \undef{#1}%
+ \expandafter\undef\expandafter{\csname\@tempa true\endcsname}%
+ \expandafter\undef\expandafter{\csname\@tempa false\endcsname}%
+ }%
+}
+
+% 紙サイズ一覧
+\@namedef{jlreq@helper@papersizelist@a0}{{841mm}{1189mm}}
+\@namedef{jlreq@helper@papersizelist@a1}{{594mm}{841mm}}
+\@namedef{jlreq@helper@papersizelist@a2}{{420mm}{594mm}}
+\@namedef{jlreq@helper@papersizelist@a3}{{297mm}{420mm}}
+\@namedef{jlreq@helper@papersizelist@a4}{{210mm}{297mm}}
+\@namedef{jlreq@helper@papersizelist@a5}{{148mm}{210mm}}
+\@namedef{jlreq@helper@papersizelist@a6}{{105mm}{148mm}}
+\@namedef{jlreq@helper@papersizelist@a7}{{74mm}{105mm}}
+\@namedef{jlreq@helper@papersizelist@a8}{{52mm}{74mm}}
+\@namedef{jlreq@helper@papersizelist@a9}{{37mm}{52mm}}
+\@namedef{jlreq@helper@papersizelist@a10}{{26mm}{37mm}}
+
+\@namedef{jlreq@helper@papersizelist@b0}{{1030mm}{1456mm}}
+\@namedef{jlreq@helper@papersizelist@b1}{{728mm}{1030mm}}
+\@namedef{jlreq@helper@papersizelist@b2}{{515mm}{728mm}}
+\@namedef{jlreq@helper@papersizelist@b3}{{364mm}{515mm}}
+\@namedef{jlreq@helper@papersizelist@b4}{{257mm}{364mm}}
+\@namedef{jlreq@helper@papersizelist@b5}{{182mm}{257mm}}
+\@namedef{jlreq@helper@papersizelist@b6}{{128mm}{182mm}}
+\@namedef{jlreq@helper@papersizelist@b7}{{91mm}{128mm}}
+\@namedef{jlreq@helper@papersizelist@b8}{{64mm}{91mm}}
+\@namedef{jlreq@helper@papersizelist@b9}{{45mm}{64mm}}
+\@namedef{jlreq@helper@papersizelist@b10}{{32mm}{45mm}}
+
+\@namedef{jlreq@helper@papersizelist@c2}{{458mm}{648mm}}
+\@namedef{jlreq@helper@papersizelist@c3}{{324mm}{458mm}}
+\@namedef{jlreq@helper@papersizelist@c4}{{229mm}{354mm}}
+\@namedef{jlreq@helper@papersizelist@c5}{{162mm}{229mm}}
+\@namedef{jlreq@helper@papersizelist@c6}{{114mm}{162mm}}
+\@namedef{jlreq@helper@papersizelist@c7}{{81mm}{114mm}}
+\@namedef{jlreq@helper@papersizelist@c8}{{57mm}{81mm}}
+
+\@namedef{jlreq@helper@papersizelist@a4var}{{210mm}{283mm}}
+\@namedef{jlreq@helper@papersizelist@b5var}{{182mm}{230mm}}
+
+\@namedef{jlreq@helper@papersizelist@letter}{{8.5in}{11in}}
+\@namedef{jlreq@helper@papersizelist@legal}{{8.5in}{14in}}
+\@namedef{jlreq@helper@papersizelist@executive}{{7.25in}{10.5in}}
+\@namedef{jlreq@helper@papersizelist@hagaki}{{100mm}{148mm}}
+
+% #1÷#2を\jlreq@resultdimenに入れる.(#1,#2は寸法を与える.)
+\newcommand*{\jlreq@helper@divide}[2]{%
+ \begingroup
+ \@tempdima=\dimexpr#1\relax\@tempdimb=\dimexpr#2\relax
+ % 分母を正にする
+ \ifdim\@tempdimb<0pt \@tempdima=-\@tempdima\@tempdimb=-\@tempdimb\fi
+ % \jlreq@tempdima*\@tempdimb <= \@tempdima < (\jlreq@tempdima + 1)*\@tempdimb
+ % となる整数\jlreq@tempdimaを捜し,\jlreq@tempdimb=\jlreq@tempdima + 1とする
+ \jlreq@tempdima=0pt
+ \ifdim\@tempdima<0pt
+ \loop\ifdim\strip@pt\jlreq@tempdima\@tempdimb>\@tempdima\advance\jlreq@tempdima by -1pt\repeat
+ \else
+ \loop\ifdim\strip@pt\jlreq@tempdima\@tempdimb<\@tempdima\advance\jlreq@tempdima by 1pt\repeat
+ \ifdim\strip@pt\jlreq@tempdima\@tempdimb=\@tempdima\else\advance\jlreq@tempdima by -1pt\fi
+ \fi
+ \jlreq@tempdimb=\dimexpr\jlreq@tempdima + 1pt\relax
+ % \jlreq@tempdimaと\jlreq@tempdimbで挟んでいく二分法
+ \jlreq@tempcnta=0 % 無限ループを避けるためのカウンタ
+ \loop\ifnum\numexpr\ifdim\dimexpr\jlreq@tempdimb - \jlreq@tempdima\relax>1sp 1\else0\fi*\ifnum\jlreq@tempcnta<100 1\else 0\fi\relax=1
+ \jlreq@tempdimc=\dimexpr(\jlreq@tempdima+\jlreq@tempdimb)/2\relax
+ \ifdim\strip@pt\jlreq@tempdimc\@tempdimb>\@tempdima\jlreq@tempdimb=\jlreq@tempdimc
+ \else\jlreq@tempdima=\jlreq@tempdimc\fi
+ \advance\jlreq@tempcnta by 1
+ \repeat
+ \edef\jlreq@do{\noexpand\jlreq@resultdimen=\the\jlreq@tempdima\noexpand\relax}%
+ \expandafter\endgroup
+ \jlreq@do
+}
+
+\def\jlreq@for@noexpand#1:={\@for#1:=\@empty}
+
+\def\jlreq@helper@swap#1#2{%
+ \let\jlreq@helper@swaptoken=#1%
+ \let#1=#2%
+ \let#2=\jlreq@helper@swaptoken
+ \let\jlreq@helper@swaptoken=\@undefined
+}
+\def\jlreq@helper@swap@register#1#2{%
+ \edef\jlreq@helper@swaptoken{\the#1}%
+ #1=#2%
+ #2=\jlreq@helper@swaptoken\relax
+ \let\jlreq@helper@swaptoken=\@undefined
+}
+
+\endinput
+