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Diffstat (limited to 'Master/texmf-dist/tex/latex/jlreq/jlreq-helpers.sty')
-rw-r--r-- | Master/texmf-dist/tex/latex/jlreq/jlreq-helpers.sty | 454 |
1 files changed, 454 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/latex/jlreq/jlreq-helpers.sty b/Master/texmf-dist/tex/latex/jlreq/jlreq-helpers.sty new file mode 100644 index 00000000000..880622c4963 --- /dev/null +++ b/Master/texmf-dist/tex/latex/jlreq/jlreq-helpers.sty @@ -0,0 +1,454 @@ +% エンジン非依存のマクロ集 + +\NeedsTeXFormat{LaTeX2e} +\ProvidesPackage{jlreq-helpers}[2018/04/12 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}} + +% #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{% + \def\jlreq@resulta{#1}% + \def\jlreq@resultb{#2}% + \ifx\jlreq@resultb\@empty\jlreq@resultfalse\else\jlreq@resulttrue\expandafter\def\expandafter\jlreq@resultb\expandafter{\jlreq@helper@removelastcomma#2\jlreq@endmark}\fi +} +\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}} +% *{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{}% + \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{% + \define@choicekey{#1}{#2}{#3}{\eappto\jlreq@do{\unexpanded{#4}}}% + \jlreq@helper@parsekeyval@@@{#1}% +} +\long\def\jlreq@helper@parsekeyval@@@definekeywithdefault#1#2#3{% + \define@key{#1}{#2}[]{\eappto\jlreq@do{\unexpanded{#3}}}% + \jlreq@helper@parsekeyval@@@{#1}% +} +\long\def\jlreq@helper@parsekeyval@@@definekey#1#2#3{% + \define@key{#1}{#2}{\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 +\newcommand{\jlreq@parsekeyval@nokey}[2]{% + \begingroup + \def\jlreq@do{}% + \def\jlreq@parsekeyval@nokey@execute##1##2{#1}% + \expandafter\jlreq@parsekeyval@nokey@#2,\jlreq@endmark,% + \expandafter\endgroup + \jlreq@do +} +\long\def\jlreq@parsekeyval@nokey@#1,{% + \jlreq@ifendmark{#1}{}{\jlreq@parsekeyval@nokey@@#1=\jlreq@endmark}% +} +\long\def\jlreq@parsekeyval@nokey@@#1=#2\jlreq@endmark{% + \jlreq@ifempty{#2}{\jlreq@parsekeyval@nokey@@@{}{#1}}{\expandafter\jlreq@parsekeyval@nokey@@@\expandafter{\jlreq@parsekeyval@nokey@@@@#2\jlreq@endmark}{#1}}% +} +\long\def\jlreq@parsekeyval@nokey@@@#1#2{% + \eappto\jlreq@do{\expandonce{\jlreq@parsekeyval@nokey@execute{#2}{#1}}}% + \jlreq@parsekeyval@nokey@ +} +\long\def\jlreq@parsekeyval@nokey@@@@#1=\jlreq@endmark{#1} + +% \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 +% 文字列比較→\edefして比較する +% 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}[2]{% + \begingroup + \let\jlreq@do\@undefined + \edef\jlreq@tempa{#1}% ループ中ずっと保存する + \jlreq@helper@switch@#2\jlreq@endmark + \ifx\jlreq@do\@undefined + \def\jlreq@do{\@ifnextchar[{\jlreq@helper@switch@executeoption{#1}}{}}% + \else + \appto\jlreq@do{\@ifnextchar[{\jlreq@helper@removeoption}{}}% + \fi + \expandafter\endgroup + \jlreq@do +} +\long\def\jlreq@helper@switch@#1{% + \jlreq@ifendmark{#1}{}{\jlreq@helper@switch@@{#1}}% +} + +\long\def\jlreq@helper@switch@@#1#2{% + \jlreq@ifendmark{#2}{% + \edef\jlreq@do{\unexpanded{#1}}% + }{% + \edef\jlreq@tempb{#1}% + \ifx\jlreq@tempa\jlreq@tempb\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi{% + \edef\jlreq@do{\unexpanded{#2}}% + \jlreq@deleteuntileendmark + }{% + \jlreq@helper@switch@ + }% + }% +} + + +\RequirePackage[savepos]{zref} +\newcount\jlreq@zref@reference@count +\jlreq@zref@reference@count=0 +% 現在のページを得る +\zref@newprop*{jlreq@page}[0]{\number\c@page} +\zref@addprop{main}{jlreq@page} +\newcount\jlreq@currentpage +% \jlreq@setcurrentpageをすると,\jlreq@currentpageにこの場所のページ数が入る +\newcommand*{\jlreq@setcurrentpage}{% + \global\advance\jlreq@zref@reference@count by 1 + \zref@labelbyprops{jlreq@currentpage.\the\jlreq@zref@reference@count}{jlreq@page}% + \global\jlreq@currentpage=\zref@extractdefault{jlreq@currentpage.\the\jlreq@zref@reference@count}{jlreq@page}{\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}% + {% + \ifnum0#1{#2}>0 \expandafter\@firstoftwo\else\expandafter\@secondoftwo\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 +} + +\endinput + |