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+% \iffalse
+%
+% chmst-pdf.dtx
+%
+% Copyright (C) 2010 by Shinsaku Fujita All rights reserved.
+%
+% ========================================
+%
+% Modified from the following previous packages:
+%
+% chemist.dtx
+% Copyright (C) 1996, 1999, 2000 by Shinsaku Fujita All rights reserved
+% and
+% chmst-ps.dtx
+% Copyright (C) 2002, 2004, 2009, 2010 by Shinsaku Fujita All rights reserved
+%
+% in order to utilize pgf.
+%
+% This file is part of the ChemSci system
+% ========================================
+%
+% This style file is created for submitting a manuscript to
+% scientific journals. This style file is to be contained in the
+% ``chemist'' directory which is an input directory for TeX.
+%
+% For using this file, see
+% Shinsaku Fujita, ``LaTeX for Chemists and Biochemists''
+% Tokyo Kagaku Dojin, Tokyo (1993), Chapter 16.
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+% The Current Maintainer of this work is Shinsaku Fujita.
+%
+% This work consists of the files chmst-ps.dtx and chmst-ps.ins
+% and the derived file chmst-ps.sty.
+%
+% Please report any bugs, comments, suggestions, etc. to:
+% Shinsaku Fujita,
+% Shonan Institute of Chemoinformatics and
+% Mathematical Chemistry
+% fujita-sicimc@nifmail.jp
+%
+%=======================================
+%
+% This file is a successor to:
+%
+% *********************************************************************
+% * chemist.sty <Sept 29 1991> by Shinsaku Fujita *
+% * counters and related matters for compounds. *
+% * ffboxit: November 2 1991 by S. Fujita *
+% * bslskipchange: November 6 1991 by S. Fujita (deleted) *
+% * chapinitial: 1991 November 7 by S. Fujita *
+% * variable arrows: 1992 May 24 by S. Fujita *
+% * reaction and scheme arrows (revised): 1992 May 24 by S. Fujita *
+% * changespace <=== bslskipchange: Dec 31 1992 by S. Fujita *
+% * (g)rshfboxit and (g)lshfboxit: January 3, 1993 by S. Fujita *
+% *********************************************************************
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Released on January 3, 1993
+% Copyright (C) 1993 by Shinsaku Fujita, all rights reserved.
+% This style file is created for making manuscripts of chemical fields.
+% This option style file is to be contained in the ``chemist'' directory
+% which is an input directory for TeX.
+%
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \def\j@urnalname{chemist}
+% \def\versi@ndate{January 03, 1993}
+% \def\versi@nno{ver1.00}
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Version 1.01
+% --- added the end commands of the \verbatim environment and the
+% \verb command contained in LaTeX 2.09
+% --- \LaTeX, \BibTeX logos etc improved
+% \typeout{verbatim for LaTeX2.09 (and LaTeX2e) in chemist.sty}
+% \typeout{logos for LaTeX2.09 (and LaTeX2e) in chemist.sty}
+% \def\versi@ndate{April 20, 1996}
+% \def\j@urnalname{chemist}
+% \def\versi@ndate{April 20, 1996}
+% \def\versi@nno{ver1.01}
+% \def\copyrighth@lder{SF} % Shinsaku Fujita
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \def\j@urnalname{chemist} \def\journalID{chemist}
+% \def\versi@ndate{June 15, 1996}
+% \def\versi@nno{ver1.01a}
+% \def\copyrighth@lder{SF} % Shinsaku Fujita
+% \typeout{Package `\j@urnalname' (\versi@nno) <\versi@ndate>\space
+% [\copyrighth@lder]}
+% \typeout{chemist.sty ver1.01a (for LaTeX2e) 1996/06/15[SF]}
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \def\j@urnalname{chemist} \def\journalID{chemist}
+% \def\versi@ndate{March 16, 1999}
+% \def\versi@nno{ver2.00}
+% \def\copyrighth@lder{SF} % Shinsaku Fujita
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \def\j@urnalname{chemist} \def\journalID{chemist}
+% \def\versi@ndate{November 3, 2000}
+% \def\versi@nno{ver2.00a}
+% \def\copyrighth@lder{SF} % Shinsaku Fujita
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \def\j@urnalname{chmst-ps} \def\journalID{chmst-ps}
+% \def\versi@ndate{May 30, 2002}
+% \def\versi@nno{ver1.00}
+% \def\copyrighth@lder{SF} % Shinsaku Fujita
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \def\j@urnalname{chmst-ps} \def\journalID{chmst-ps}
+% \def\versi@ndate{August 30, 2004}
+% \def\versi@nno{ver1.01}
+% \def\copyrighth@lder{SF} % Shinsaku Fujita
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \def\j@urnalname{chmst-ps} \def\journalID{chmst-ps}
+% \def\versi@ndate{November 08, 2009}
+% \def\versi@nno{ver1.02}
+% \def\copyrighth@lder{SF} % Shinsaku Fujita
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% \def\j@urnalname{chmst-ps} \def\journalID{chmst-ps}
+% \def\versi@ndate{November 26, 2009}
+% \def\versi@nno{ver1.03}
+% \def\copyrighth@lder{SF} % Shinsaku Fujita
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+%
+% \fi
+% \CheckSum{1429}
+%% \CharacterTable
+%% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+%% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+%% Digits \0\1\2\3\4\5\6\7\8\9
+%% Exclamation \! Double quote \" Hash (number) \#
+%% Dollar \$ Percent \% Ampersand \&
+%% Acute accent \' Left paren \( Right paren \)
+%% Asterisk \* Plus \+ Comma \,
+%% Minus \- Point \. Solidus \/
+%% Colon \: Semicolon \; Less than \<
+%% Equals \= Greater than \> Question mark \?
+%% Commercial at \@ Left bracket \[ Backslash \\
+%% Right bracket \] Circumflex \^ Underscore \_
+%% Grave accent \` Left brace \{ Vertical bar \|
+%% Right brace \} Tilde \~}
+%
+% \iffalse
+%%
+%% `chmst-ps.dtx' ver1.00 (for LaTeX2e) 2002/05/30
+%% `chmst-ps.dtx' ver1.01 (for LaTeX2e) 2004/08/30
+%% `chmst-ps.dtx' ver1.02 (for LaTeX2e) 2009/11/08
+%% `chmst-ps.dtx' ver1.03 (for LaTeX2e) 2009/11/26
+%% `chmst-ps.dtx' ver5.00 (for LaTeX2e) 2010/10/01
+%% by Shinsaku Fujita
+%%
+%
+% \section{Initial declaration}
+%
+% \changes{v1.00}{2002/05/30}{First Version}
+% \changes{v1.01}{2004/08/30}{2nd Version}
+% \changes{v1.02}{2009/11/08}{3rd Version}
+% \changes{v1.03}{2009/11/26}{4th Version, harpoons}
+% \changes{v5.00}{2010/10/01}{For LaTeX Project Public License}
+%
+% \begin{macrocode}
+% \NeedsTeXFormat{LaTeX2e}
+% \end{macrocode}
+%
+% \begin{macrocode}
+% <chmstpdf>\ProvidesFile{chmst-ps.sty}
+%<driver>\ProvidesFile{chmst-ps.drv}
+%<driver> [2010/10/01 v5.00
+% <chmstpdf> ChemSci package ]
+%<driver> ChemSci package driver (English)
+% \end{macrocode}
+%
+%\setcounter{StandardModuleDepth}{1}
+%
+% \section{Driver file for this dtx file}
+%
+% \begin{macrocode}
+%<*driver>
+ ]
+\documentclass{ltxdoc}
+\GetFileInfo{chmst-pdf.drv}
+\title{The chmst-pdf Package \space\fileversion \\
+(Part of the XyMTeX/ChemSci package v5.00)}
+\author{Shinsaku Fujita \\
+Shonan Institute of Chemoinformatics and
+Mathematical Chemistry \\
+Ashigara-Kami-Gun, Kanagawa, 258-0019 Japan
+%% Department of Chemistry and Materials Technology \\
+%% Kyoto Institute of Technology \\
+%% Matsugasaki, Sakyoku, Kyoto, 606-8585 Japan
+%% (old address)
+%% Ashigara Research Laboratories \\
+%% Fuji Photo Film Co. Ltd.
+}
+\date{\filedate}
+\begin{document}
+\maketitle
+\tableofcontents
+\DocInput{chmst-pdf.dtx}
+\end{document}
+%</driver>
+% \end{macrocode}
+%
+% \fi
+%
+% \StopEventually{}
+%
+% \section{{\sc docstrip} options}
+%
+% This dtx file provides the {\sffamily chmst-pdf} package
+% by docstrip processing.
+%
+% \DeleteShortVerb{\|}
+% \begin{center}
+% \begin{tabular}{|l|l|}
+% \hline
+% argument & package name \\
+% \hline
+% chmstpdf & chmst-pdf.sty \\
+% driver & a documentation driver file \\
+% \hline
+% \end{tabular}
+% \end{center}
+% \MakeShortVerb{\|}
+%
+% \section{Version information}
+%
+% The old process for typing out version information remains active.
+% \begin{macrocode}
+%<chmstpdf>\def\j@urnalname{chmst-pdf} \def\journalID{chmst-pdf}
+\def\versi@ndate{October 01, 2010}
+\def\versi@nno{ver5.00}
+\def\copyrighth@lder{SF} % Shinsaku Fujita
+%<*chmstpdf>
+\typeout{Package `\j@urnalname' (\versi@nno) <\versi@ndate>\space
+[\copyrighth@lder]}
+\typeout{chmst-pdf.sty ver5.00 (for LaTeX2e) 2010/10/01[SF]}
+%</chmstpdf>
+% \end{macrocode}
+%
+% \begin{macrocode}
+%<*chmstpdf>
+\@ifundefined{if@@@chemtimes}{\newif\if@@@chemtimes}{}
+\@ifundefined{if@@chemtimes}{\newif\if@@chemtimes}{}%from chemtimes
+\DeclareOption{chemtimes}{\@@@chemtimestrue}
+\@@@chemtimesfalse
+\ProcessOptions
+\if@@@chemtimes\if@@chemtimes\else
+ \PackageError{chmst-pdf}
+ {The option ``chemtimes'' is not permitted}
+ {You should use this option after the chemtimes package is loaded.}
+\fi\fi
+\if@@@chemtimes
+\RequirePackage[chemtimes]{chemist}%
+\else
+\RequirePackage{chemist}%
+\fi
+\RequirePackage{xymtx-pdf}%
+% \end{macrocode}
+%
+% \section{Cross-references of compounds}
+% (Deleted)
+% \section{Boxes for placing compounds}
+% (Deleted)
+% \section{Arrows}
+% \subsection{Arrows with variable length}
+% (Deleted)
+% \subsection{Reaction arrows with variable length}
+%
+% The {\sffamily chmst-pdf} package defines arrows with variable length
+% for drawing chemical equations, where additional information
+% can be written on the upper and/or downward sides of each arrow.
+% \changes{v1.00}{2002/05/30}{First Version for PostScript mode}
+% \changes{v5.00}{2010/10/01}{For PDF mode}
+%
+% Several elements for drawing horizontal reaction arrows within the scope of
+% pstricks package are defined first.
+%
+% \begin{macro}{\rArrow@Element}
+% \begin{macro}{\lArrow@Element}
+% \begin{macro}{\lrArrow@Element}
+% \begin{macro}{\eqArrow@Element}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\newdimen\@tempdimX
+\newdimen\@tempdimY
+\def\rArrow@Element#1{\begingroup\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[>=stealth,->,line width=0.4pt]%
+(0pt,0pt) coordinate (X) (0pt,0.28em) -- (#1,0.28em);}%
+\hss}\endgroup}
+\let\Arrow@Element=\rArrow@Element
+\def\lArrow@Element#1{\begingroup\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-,line width=0.4pt]%
+(0pt,0pt) coordinate (X) (0pt,0.28em) -- (#1,0.28em);}%
+\hss}\endgroup}
+\def\lrArrow@Element#1{\begingroup\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-stealth,line width=0.4pt]%
+(0pt,0pt) coordinate (X) (0pt,0.28em) -- (#1,0.28em);}%
+\hss}\endgroup}
+\def\eqArrow@Element#1{\begingroup\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(0pt,0.43em) -- (#1,0.43em);
+\draw[stealth-,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(0pt,0.13em) -- (#1,0.13em);}%
+\hss}\endgroup}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\eqHarpoon@Element}
+% \changes{v1.03}{2009/11/26}{Harpoons added as PostScript procedures}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\eqHarpoon@Element#1{\begingroup\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[-left to,line width=0.4pt]%
+(0pt,0.43em) -- (#1,0.43em);
+\draw[left to-,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(0pt,0.13em) -- (#1,0.13em);}%
+\hss}\endgroup}
+% \end{macrocode}
+% \end{macro}
+%
+% Equilibirum arrows with uneven lengths are defined by using the \verb/\draw/ command
+% of the pgf package.
+% \changes{v1.02}{2009/11/08}{2nd Version fro PostScript mode (due to PSTricks)}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode (due to pgf)}
+%
+% \begin{macro}{\reqArrow@Element}
+% \begin{macro}{\leqArrow@Element}
+% \begin{macrocode}
+\def\reqArrow@Element#1{\begingroup%
+\dimen1=#1%
+\dimen0=\eqlbarrowstretch\dimen1%
+\dimen1=#1 \advance\dimen1 by-\dimen0 \divide\dimen1 by2\relax
+\dimen2=\dimen1 \advance\dimen2 by\dimen0
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(0pt,0.43em) -- (#1,0.43em);
+\draw[stealth-,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(\the\dimen1,0.13em) -- (\the\dimen2,0.13em);}%
+\endgroup}
+\def\leqArrow@Element#1{\begingroup%
+\dimen1=#1%
+\dimen0=\eqlbarrowstretch\dimen1%
+\dimen1=#1 \advance\dimen1 by-\dimen0 \divide\dimen1 by2\relax
+\dimen2=\dimen1 \advance\dimen2 by\dimen0
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(\the\dimen1,0.43em) -- (\the\dimen2,0.43em);
+\draw[stealth-,line width=0.4pt]%
+(0pt,0pt) coordinate (X) (0pt,0.13em) -- (#1,0.13em);}%
+\endgroup}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\reqHarpoon@Element}
+% \begin{macro}{\leqHarpoon@Element}
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v1.03}{2009/11/26}{Harpoons added as PostScript procedures}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\reqHarpoon@Element#1{\begingroup%
+\dimen1=#1%
+\dimen0=\eqlbarrowstretch\dimen1%
+\dimen1=#1 \advance\dimen1 by-\dimen0 \divide\dimen1 by2\relax
+\dimen2=\dimen1 \advance\dimen2 by\dimen0
+\tikz[baseline=(X.base)]{%
+\draw[-left to,line width=0.4pt]%
+(0pt,0.43em) -- (#1,0.43em);
+\draw[left to-,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(\the\dimen1,0.13em) -- (\the\dimen2,0.13em);}%
+\endgroup}
+\def\leqHarpoon@Element#1{\begingroup%
+\dimen1=#1%
+\dimen0=\eqlbarrowstretch\dimen1%
+\dimen1=#1 \advance\dimen1 by-\dimen0 \divide\dimen1 by2\relax
+\dimen2=\dimen1 \advance\dimen2 by\dimen0
+\tikz[baseline=(X.base)]{%
+\draw[-left to,line width=0.4pt]%
+(\the\dimen1,0.43em) -- (\the\dimen2,0.43em);
+\draw[left to-,line width=0.4pt]%
+(0pt,0pt) coordinate (X) (0pt,0.13em) -- (#1,0.13em);
+}%
+\endgroup}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% Each arrow element is used in the following common command for drawing
+% horizontal reaction arrows.
+% \changes{v1.02}{2009/11/08}{changed definition;
+% added \cs{reactarrowsep} and \cs{reactarrowseprate}}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+%
+% \begin{verbatim}
+% \reactarrowsep (dimension) for adjusting the two vertical spaces (default value 0pt)
+% \reactarrowseprate (string) for adjusting the lower vertical space (default 1.0)
+% \end{verbatim}
+%
+% \begin{macro}{\react@@rlarrow}
+% \begin{macrocode}
+\newdimen\@tempdimX
+\def\react@@rlarrow[#1]#2#3#4#5{\ensuremath{\mathrel{%
+\hskip#1\raisebox{#2}{\begingroup\@tempdimX=#3\relax%
+ \parbox{#3}{\centering
+ \baselineskip=.8\normalbaselineskip \ChemStrut{#4}\par%
+ \vskip-0.2\normalbaselineskip\vskip\reactarrowsep%
+ \noindent
+ \Arrow@Element{\the\@tempdimX}
+ \par%
+ \vskip\reactarrowseprate\reactarrowsep%
+ \vskip-0.1\normalbaselineskip\ChemStrut{#5}}\endgroup}}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\reactrarrow}
+% \begin{macro}{\reactlarrow}
+% \begin{macro}{\reactlrarrow}
+% \begin{macro}{\reactEqarrow}%2009/11/19 renamed from \verb/\reacteqarrow/
+% \begin{macro}{\reacteqarrow}%2009/11/19
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macrocode}
+% ******************* 1991 Oct 4 S. Fujita
+% * reaction arrows * Revised 1992 May 24 S.Fujita%1999/02/02 SF
+% ******************* Redifined 2002 May 30 S. Fujita for pstricks
+% After Chapter 9 of ``LaTeX for (Bio)Chemists'' by Shinsaku Fujita
+%
+% #1 yoko #2 ue, #3 haba, #4 ya no ue, #5 ya no shita
+%
+\def\newreactrarrow{%
+\@ifnextchar[{\newreact@rarrow}{\newreact@rarrow[0pt]}}
+\def\newreact@rarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\rArrow@Element%
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactlarrow{%
+\@ifnextchar[{\newreact@larrow}{\newreact@larrow[0pt]}}
+\def\newreact@larrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\lArrow@Element%
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactlrarrow{%
+\@ifnextchar[{\newreact@lrarrow}{\newreact@lrarrow[0pt]}}
+\def\newreact@lrarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\lrArrow@Element%
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%2009/11/19
+\def\newreactEqarrow{%
+\@ifnextchar[{\newreact@Eqarrow}{\newreact@Eqarrow[0pt]}}
+\def\newreact@Eqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\eqArrow@Element%
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreacteqarrow{%
+\@ifnextchar[{\newreact@eqarrow}{\newreact@eqarrow[0pt]}}
+\def\newreact@eqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\eqHarpoon@Element%
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%%2009/11/19
+%\let\reactrarrow=\newreactrarrow
+%\let\reactlarrow=\newreactlarrow
+%\let\reactlrarrow=\newreactlrarrow
+%\let\reactEqarrow=\newreactEqarrow
+%\let\reacteqarrow=\newreacteqarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\reactREqarrow}%%renamed 2009/11/19
+% \begin{macro}{\reactLEqarrow}%%renamed 2009/11/19
+% \begin{macro}{\reactreqarrow}
+% \begin{macro}{\reactleqarrow}
+%
+% These commands have been added for the XyMTeX version 4.05.
+% The {\sffamily chemist} package additionally defines arrows with variable length
+% for drawing chemical equilibrium, where additional information
+% can be written on the upper and/or downward sides of each arrow.
+% The length of either one of arrows can be reduced by \verb/\eqlbarrowstretch/.
+%
+% \changes{v4.05}{2009/11/08}{added \cs{reactreqarrow} and \cs{reactleqarrow}}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+%
+% \begin{macrocode}
+\def\newreactREqarrow{%
+\@ifnextchar[{\newreact@REqarrow}{\newreact@REqarrow[0pt]}}
+\def\newreact@REqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\reqArrow@Element
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactLEqarrow{%
+\@ifnextchar[{\newreact@LEqarrow}{\newreact@LEqarrow[0pt]}}
+\def\newreact@LEqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\leqArrow@Element
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%%2009/11/19
+\def\newreactreqarrow{%
+\@ifnextchar[{\newreact@reqarrow}{\newreact@reqarrow[0pt]}}
+\def\newreact@reqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\reqHarpoon@Element
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactleqarrow{%
+\@ifnextchar[{\newreact@leqarrow}{\newreact@leqarrow[0pt]}}
+\def\newreact@leqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\leqHarpoon@Element
+\react@@rlarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%%2009/11/19
+%\let\reactREqarrow=\newreactREqarrow
+%\let\reactLEqarrow=\newreactLEqarrow
+%\let\reactreqarrow=\newreactreqarrow
+%\let\reactleqarrow=\newreactleqarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% Several elements for drawing vertical reaction arrows within the scope of
+% pstricks package are defined first.
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\dArrow@Element}
+% \begin{macro}{\uArrow@Element}
+% \begin{macro}{\veqArrow@Element}
+% \begin{macro}{\duArrow@Element}
+% \begin{macrocode}
+\def\dArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(0pt,#1) coordinate (X) -- (0pt,0pt);}}
+\def\uArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-,line width=0.4pt]%
+(0pt,#1) coordinate (X) -- (0pt,0pt);}}
+\def\veqArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(-0.15em,#1) -- (-0.15em,0pt);
+\draw[stealth-,line width=0.4pt]%
+(0.15em,#1) -- (0.15em,0pt);}}
+\def\duArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-stealth,line width=0.4pt]%
+(0pt,#1) coordinate (X) -- (0pt,0pt);}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\veqHarpoon@Element}
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v1.03}{2009/11/26}{Harpoons added as PostScript procedures}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\veqHarpoon@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[-left to,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(-0.15em,#1) -- (-0.15em,0pt);
+\draw[left to-,line width=0.4pt]%
+(0.15em,#1) -- (0.15em,0pt);}}
+% \end{macrocode}
+% \end{macro}
+%
+% Each arrow element is used in the following common command for drawing
+% vertical reaction arrows.
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\react@@duarrow}
+% \begin{macrocode}
+\def\react@@duarrow[#1]#2#3#4#5{\hskip#1\raisebox{#2}{%
+\@tempdimY=#3\def\arraystretch{0.8}%
+\begin{tabular}{l}#4\end{tabular}%
+{\tabcolsep=0pt\begin{tabular}{c}%
+\Arrow@Element{\the\@tempdimY}%
+\end{tabular}}%
+\begin{tabular}{l}#5\end{tabular}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\reactdarrow}
+% \begin{macro}{\reactuarrow}
+% \begin{macro}{\reactduarrow}
+% \begin{macro}{\reactVEqarrow}%%renamed 2009/11/19
+% \begin{macro}{\reactveqarrow}%%renamed 2009/11/19
+% Vertical reaction arrows has been added.
+% \changes{v1.00}{2002/05/30}{First Version}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macrocode}
+\def\newreactdarrow{%
+\@ifnextchar[{\newreact@darrow}{\newreact@darrow[0pt]}}
+\def\newreact@darrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\dArrow@Element
+\react@@duarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactuarrow{%
+\@ifnextchar[{\newreact@uarrow}{\newreact@uarrow[0pt]}}
+\def\newreact@uarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\uArrow@Element
+\react@@duarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactduarrow{%
+\@ifnextchar[{\newreact@duarrow}{\newreact@duarrow[0pt]}}
+\def\newreact@duarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\duArrow@Element
+\react@@duarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%%2009/11/19
+\def\newreactVEqarrow{%
+\@ifnextchar[{\newreact@VEqarrow}{\newreact@VEqarrow[0pt]}}
+\def\newreact@VEqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\veqArrow@Element
+\react@@duarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactveqarrow{%
+\@ifnextchar[{\newreact@veqarrow}{\newreact@veqarrow[0pt]}}
+\def\newreact@veqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\veqHarpoon@Element
+\react@@duarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%%2009/11/19
+%\let\reactdarrow=\newreactdarrow
+%\let\reactuarrow=\newreactuarrow
+%\let\reactduarrow=\newreactduarrow
+%\let\reactVEqarrow=\newreactVEqarrow
+%\let\reactveqarrow=\newreactveqarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% Several elements for drawing down-sloped reaction arrows within the scope of
+% pgf package are defined first.
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\seArrow@Element}
+% \begin{macrocode}
+\def\seArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(0pt,#1) coordinate (X) -- (#1,0pt);}}
+\def\nwArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-,line width=0.4pt]%
+(0pt,#1) coordinate (X) -- (#1,0pt);}}
+% \end{macrocode}
+% \end{macro}
+%
+% Each arrow element is used in the following common command for drawing
+% down-sloped reaction arrows.
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\react@@decrarrow}
+% \begin{macrocode}
+\def\react@@decrarrow[#1]#2#3#4#5{\hskip#1\raisebox{#2}{%
+\@tempdimX=#3\divide\@tempdimX by2\relax
+\@tempdimY=#3\relax\def\arraystretch{0.8}%
+\begin{tabular}{l}#4\end{tabular}\kern1em%
+{\tabcolsep=0pt\begin{tabular}{c}
+\Arrow@Element{\the\@tempdimY}%
+\end{tabular}}\kern1em%
+\begin{tabular}{l}#5\end{tabular}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\reactsearrow}
+% \begin{macro}{\reactnwrarrow}
+% Further reaction arrows have been added.
+% \changes{v1.00}{2002/05/30}{First Version for PostScript}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macrocode}
+\def\newreactsearrow{%
+\@ifnextchar[{\newreact@searrow}{\newreact@searrow[0pt]}}
+\def\newreact@searrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\seArrow@Element
+\react@@decrarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactnwarrow{%
+\@ifnextchar[{\newreact@nwarrow}{\newreact@nwarrow[0pt]}}
+\def\newreact@nwarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\nwArrow@Element
+\react@@decrarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%%2009/11/19
+%\let\reactsearrow=\newreactsearrow
+%\let\reactnwarrow=\newreactnwarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% Several elements for drawing up-sloped reaction arrows within the scope of
+% pgf package are defined first.
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\neArrow@Element}
+% \begin{macrocode}
+\def\neArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(0pt,0pt) coordinate (X) -- (#1,#1);}}
+\def\swArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-,line width=0.4pt]%
+(0pt,0pt) coordinate (X) -- (#1,#1);}}
+% \end{macrocode}
+% \end{macro}
+%
+% Each arrow element is used in the following common command for drawing
+% up-sloped reaction arrows.
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\react@@incrarrow}
+% \begin{macrocode}
+\def\react@@incrarrow[#1]#2#3#4#5{\hskip#1\raisebox{#2}{%
+\@tempdimX=#3 \divide\@tempdimX by2
+\@tempdimY=#3%
+\def\arraystretch{0.8}%
+\begin{tabular}{l}#4\end{tabular}\kern1em%
+{\tabcolsep=0pt
+\begin{tabular}{c}
+\Arrow@Element{\the\@tempdimY}%
+\end{tabular}}\kern1em%
+\begin{tabular}{l}#5\end{tabular}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\reactnearrow}
+% \begin{macro}{\reactswarrow}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macrocode}
+\def\newreactnearrow{%
+\@ifnextchar[{\newreact@nearrow}{\newreact@nearrow[0pt]}}
+\def\newreact@nearrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\neArrow@Element
+\react@@incrarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactswarrow{%
+\@ifnextchar[{\newreact@swarrow}{\newreact@swarrow[0pt]}}
+\def\newreact@swarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\swArrow@Element
+\react@@incrarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%%2009/11/19
+%\let\reactnearrow=\newreactnearrow
+%\let\reactswarrow=\newreactswarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% Additional elements for drawing down- and up-sloped equilibrium arrows within the scope of
+% pgf package are defined first.
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\deqArrow@Element}
+% \begin{macro}{\ueqArrow@Element}
+% \begin{macrocode}
+\def\deqArrow@Element#1{%
+\begingroup
+\@tempdima=#1 \advance\@tempdima by1.2pt
+\@tempdimb=#1 \advance\@tempdimb by-1.2pt
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(1.2pt,\the\@tempdima) coordinate (X) -- (\the\@tempdima,1.2pt);%
+\draw[stealth-,line width=0.4pt]%
+(-1.2pt,\the\@tempdimb) -- (\the\@tempdimb,-1.2pt);}
+\endgroup}
+\def\ueqArrow@Element#1{%
+\begingroup
+\@tempdima=#1 \advance\@tempdima by-1.2pt
+\@tempdimb=#1 \advance\@tempdimb by1.2pt
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,line width=0.4pt]%
+(-1.2pt,1.2pt) coordinate (X) -- (\the\@tempdima,\the\@tempdimb);%
+\draw[stealth-,line width=0.4pt]%
+(1.2pt,-1.2pt) -- (\the\@tempdimb,\the\@tempdima);}
+\endgroup}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% Additional elements for drawing down- and up-sloped equilibrium harpoons within the scope of
+% pgf package are defined.
+% \changes{v1.02}{2009/11/19}{Added}
+%
+% \begin{macro}{\deqHarpoon@Element}
+% \begin{macro}{\ueqHarpoon@Element}
+% \changes{v1.03}{2009/11/26}{Harpoons added as PostScript procedures}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\deqHarpoon@Element#1{%
+\begingroup
+\@tempdima=#1 \advance\@tempdima by1.2pt
+\@tempdimb=#1 \advance\@tempdimb by-1.2pt
+\tikz[baseline=(X.base)]{%
+\draw[-left to,line width=0.4pt]%
+(1.2pt,\the\@tempdima) coordinate (X) -- (\the\@tempdima,1.2pt);%
+\draw[left to-,line width=0.4pt]%
+(-1.2pt,\the\@tempdimb) -- (\the\@tempdimb,-1.2pt);}
+\endgroup}
+\def\ueqHarpoon@Element#1{%
+\begingroup
+\@tempdima=#1 \advance\@tempdima by-1.2pt
+\@tempdimb=#1 \advance\@tempdimb by1.2pt
+\tikz[baseline=(X.base)]{%
+\draw[-left to,line width=0.4pt]%
+(-1.2pt,1.2pt) coordinate (X) -- (\the\@tempdima,\the\@tempdimb);%
+\draw[left to-,line width=0.4pt]%
+(1.2pt,-1.2pt) -- (\the\@tempdimb,\the\@tempdima);}
+\endgroup}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\reactDEqarrow}
+% \begin{macro}{\reactUEqarrow}
+% \begin{macro}{\reactdeqarrow}
+% \begin{macro}{\reactueqarrow}
+% Further reaction arrows have been added.
+% \changes{v1.00}{2002/05/30}{First Version}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macrocode}
+\def\newreactDEqarrow{\@ifnextchar[%]
+{\newreact@DEqarrow}{\newreact@DEqarrow[0pt]}}
+\def\newreact@DEqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\deqArrow@Element
+\react@@decrarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactUEqarrow{\@ifnextchar[%]
+{\newreact@UEqarrow}{\newreact@UEqarrow[0pt]}}
+\def\newreact@UEqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\ueqArrow@Element
+\react@@decrarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%2009/11/19
+\def\newreactdeqarrow{\@ifnextchar[%]
+{\newreact@deqarrow}{\newreact@deqarrow[0pt]}}
+\def\newreact@deqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\deqHarpoon@Element
+\react@@decrarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactueqarrow{\@ifnextchar[%]
+{\newreact@ueqarrow}{\newreact@ueqarrow[0pt]}}
+\def\newreact@ueqarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\ueqHarpoon@Element
+\react@@decrarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%2009/11/19
+%\let\reactDEqarrow=\newreactDEqarrow
+%\let\reactUEqarrow=\newreactUEqarrow
+%\let\reactdeqarrow=\newreactdeqarrow
+%\let\reactueqarrow=\newreactueqarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% Additional elements for drawing down- and up-sloped double-headed arrows
+% within the scope of pgf package are defined first.
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\ulrArrow@Element}
+% \begin{macro}{\dlrArrow@Element}
+% \begin{macrocode}
+\def\ulrArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-stealth,line width=0.4pt]%
+(0pt,0pt) coordinate (X) -- (#1,#1);}}
+\def\dlrArrow@Element#1{%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-stealth,line width=0.4pt]%
+(0pt,#1) coordinate (X) -- (#1,0pt);}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\reactulrarrow}
+% \begin{macro}{\reactdlrarrow}
+% \changes{v5.00}{2010/10/01}{Maitained for PDF mode}
+% \begin{macrocode}
+\def\newreactulrarrow{\@ifnextchar[%]
+{\newreact@ulrarrow}{\newreact@ulrarrow[0pt]}}
+\def\newreact@ulrarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\ulrArrow@Element
+\react@@incrarrow[#1]{#2}{#3}{#4}{#5}}
+\def\newreactdlrarrow{\@ifnextchar[%]
+{\newreact@dlrarrow}{\newreact@dlrarrow[0pt]}}
+\def\newreact@dlrarrow[#1]#2#3#4#5{%
+\let\Arrow@Element=\dlrArrow@Element
+\react@@decrarrow[#1]{#2}{#3}{#4}{#5}}
+%%%%2009/11/19
+%\let\reactulrarrow=\newreactulrarrow
+%\let\reactdlrarrow=\newreactdlrarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% A new command \verb/\electronshiftAH/ is added to defining bent (curved) arrows
+% and harpoons.
+% \changes{v1.03}{2009/12/01}{Added}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\electronshiftAH}
+% \begin{macrocode}
+\def\electronshiftAH#1(#2,#3)(#4,#5)(#6,#7){%
+\@ifnextchar(%
+{\electr@nshiftAH{#1}(#2,#3)(#4,#5)(#6,#7)}%
+{\electr@nshiftAH{#1}(#2,#3)(#4,#5)(#4,#5)(#6,#7)}}
+\def\electr@nshiftAH#1(#2,#3)(#4,#5)(#6,#7)(#8,#9){%
+%\tikz[baseline=(X.base)]{%
+%\draw [#1,line width=0.4pt] (0pt,0pt) coordinate (X)
+%(#2\unitlength,#3\unitlength) ..
+%controls (#4\unitlength,#5\unitlength)
+%and (#6\unitlength,#7\unitlength) ..
+%(#8\unitlength,#9\unitlength);}
+\tikznodimension{%
+\draw [#1,line width=0.4pt]%%(0pt,0pt) coordinate (X)
+(#2\unitlength,#3\unitlength) ..
+controls (#4\unitlength,#5\unitlength)
+and (#6\unitlength,#7\unitlength) ..
+(#8\unitlength,#9\unitlength);}%
+}%
+% \end{macrocode}
+% \end{macro}
+%
+% Several commmands for drawing curved harpoons are defined as follows:
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macro}{\electronshiftHru}
+% \begin{macro}{\electronshiftHrd}
+% \begin{macro}{\electronshiftHlu}
+% \begin{macro}{\electronshiftHld}
+% \begin{macrocode}
+\def\electronshiftHru{\electronshiftAH{-left to}}
+\def\electronshiftHrd{\electronshiftAH{-right to}}
+\def\electronshiftHlu{\electronshiftAH{right to-}}
+\def\electronshiftHld{\electronshiftAH{left to-}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% Several commmands for drawing curved arrows are defined as follows:
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macro}{\electronshiftArrowr}
+% \begin{macro}{\electronshiftArrowl}
+% \begin{macrocode}
+\def\electronshiftArrowr{\electronshiftAH{-stealth}}
+\def\electronshiftArrowl{\electronshiftAH{stealth-}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% The {\sffamily chmst-pdf} package defines double-line arrows with variable
+% length for drawing reaction schemes, where additional information
+% can be written on the upper and/or downward sides of each arrow.
+% \changes{v1.00}{2002/05/30}{First Version}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% Several elements for drawing horizontal scheme arrows within the scope of
+% pgf package are defined first.
+%
+% \begin{macro}{\lSchemeArrow@Element}
+% \begin{macrocode}
+\def\lSchemeArrow@Element#1{\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-,double distance=0.16em,line width=0.4pt]%
+(0pt,0.28em) coordinate (X) -- (#1,0.28em);}%
+\hss}}
+\def\rSchemeArrow@Element#1{\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[-stealth,double distance=0.16em,line width=0.4pt]%
+(0pt,0.28em) coordinate (X) -- (#1,0.28em);}%
+\hss}}
+\def\lrSchemeArrow@Element#1{\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[stealth-stealth,double distance=0.16em,line width=0.4pt]%
+(0pt,0.28em) coordinate (X) -- (#1,0.28em);}%
+\hss}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\schemelarrow}
+% \begin{macro}{\schemerarrow}
+% \begin{macro}{\schemelrarrow}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+%
+% \begin{macrocode}
+% ********************************
+% * scheme arrows *
+% * 1991 OCT 4 S. Fujita *
+% * Revised 1992 May 24 S.Fujita * 1999/02/02 by S. Fujita
+% ******************************** Redefined 2002/05/30 by SF
+% After Chapter 9 of ``LaTeX for (Bio)Chemists'' by Shinsaku Fujita
+\def\newschemelarrow#1#2#3#4{%
+\let\Arrow@Element=\lSchemeArrow@Element
+\react@@rlarrow[0pt]{#1}{#2}{#3}{#4}}
+\def\newschemerarrow#1#2#3#4{%
+\let\Arrow@Element=\rSchemeArrow@Element
+\react@@rlarrow[0pt]{#1}{#2}{#3}{#4}}
+\def\newschemelrarrow#1#2#3#4{%
+\let\Arrow@Element=\lrSchemeArrow@Element
+\react@@rlarrow[0pt]{#1}{#2}{#3}{#4}}
+%%%%2009/11/19
+%\let\schemelarrow=\newschemelarrow
+%\let\schemerarrow=\newschemerarrow
+%\let\schemelrarrow=\newschemelrarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \section{Redefinition of verbatim}
+% (Deleted)
+%
+% \section{Shadowed Boxes}
+% (Deleted)
+%
+% \section{Further boxes}
+% (Deleted)
+%
+% \section{Symbols for instant photography}
+% (Deleted)
+%
+% \section{Various arrows with fixed length}
+%
+% Because various arrows with a fixed length have been defined in the \textsf{chemist} package,
+% the corresponding codes for the \textsf{chmst-pdf} package are described here.
+%
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+%
+% \begin{macro}{\llongrightarrow}
+% \begin{macro}{\llongleftarrow}
+% \begin{macro}{\Equilibarrow}
+%
+% \begin{macrocode}
+\def\newllongrightarrow{\ensuremath{\mathrel{%
+\hbox to28pt{\hss\rArrow@Element{28pt}\hss}}}}
+\def\newllongleftarrow{\ensuremath{\mathrel{%
+\hbox to28pt{\hss\lArrow@Element{28pt}\hss}}}}
+\def\newllongleftrightarrow{\ensuremath{\mathrel{%
+\hbox to28pt{\hss\lrArrow@Element{28pt}\hss}}}}
+\def\newEquilibarrow{\ensuremath{\mathrel{%
+\hbox to28pt{\hss\eqArrow@Element{28pt}\hss}}}}
+%\let\llongrightarrow=\newllongrightarrow
+%\let\llongleftarrow=\newllongleftarrow
+%\let\llongleftrightarrow=\newllongleftrightarrow
+%\let\Equilibarrow=\newEquilibarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macro}{\Llongrightarrow}
+% \begin{macro}{\Llongleftarrow}
+% \begin{macro}{\Llongleftrightarrow}
+%
+% \begin{macrocode}
+\def\newLlongrightarrow{\ensuremath{\mathrel{%
+\hbox to28pt{\hss\rSchemeArrow@Element{28pt}\hss}}}}
+\def\newLlongleftarrow{\ensuremath{\mathrel{%
+\hbox to28pt{\hss\lSchemeArrow@Element{28pt}\hss}}}}
+\def\newLlongleftrightarrow{\ensuremath{%
+\mathrel{\hbox to28pt{\hss\lrSchemeArrow@Element{28pt}\hss}}}}
+%\let\Llongrightarrow=\newLlongrightarrow
+%\let\Llongleftarrow=\newLlongleftarrow
+%\let\Llongleftrightarrow\newLlongleftrightarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macro}{\lllongrightarrow}
+% \begin{macro}{\lllongleftarrow}
+% \begin{macro}{\lllongleftrightarrow}
+% \begin{macro}{\Equiliblongarrow}
+%
+% \begin{macrocode}
+\def\newlllongrightarrow{\ensuremath{\mathrel{%
+\hbox to35pt{\hss\rArrow@Element{35pt}\hss}}}}
+\def\newlllongleftarrow{\ensuremath{\mathrel{%
+\hbox to35pt{\hss\lArrow@Element{35pt}\hss}}}}
+\def\newlllongleftrightarrow{\ensuremath{\mathrel{%
+\hbox to35pt{\hss\lrArrow@Element{35pt}\hss}}}}
+\def\newEquiliblongarrow{\ensuremath{\mathrel{%
+\hbox to35pt{\hss\eqArrow@Element{35pt}\hss}}}}
+%\let\lllongrightarrow=\newlllongrightarrow
+%\let\lllongleftarrow=\newlllongleftarrow
+%\let\lllongleftrightarrow=\newlllongleftrightarrow
+%\let\Equiliblongarrow=\newEquiliblongarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macro}{\Lllongrightarrow}
+% \begin{macro}{\Lllongleftarrow}
+% \begin{macro}{\Lllongleftrightarrow}
+%
+% \begin{macrocode}
+\def\newLllongrightarrow{\ensuremath{\mathrel{%
+\hbox to35pt{\hss\rSchemeArrow@Element{35pt}\hss}}}}
+\def\newLllongleftarrow{\ensuremath{\mathrel{%
+\hbox to35pt{\hss\lSchemeArrow@Element{35pt}\hss}}}}
+\def\newLllongleftrightarrow{\ensuremath{%
+\mathrel{\hbox to35pt{\hss\lrSchemeArrow@Element{35pt}\hss}}}}
+%\let\Lllongrightarrow=\newLllongrightarrow
+%\let\Lllongleftarrow=\newLllongleftarrow
+%\let\Lllongleftrightarrow\newLllongleftrightarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% Several elements for drawing horizontal harpoons within the scope of
+% pgf package are defined first.
+% \changes{v1.02}{2009/11/19}{Added}
+%
+% \begin{macro}{\rightharpoonupElement}
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v1.03}{2009/11/26}{Harpoons added as PostScript procedures}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\rightharpoonupElement#1{%
+\leavevmode
+\lower0.2pt\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[-left to,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(0pt,0.28em) -- (#1,0.28em);}%
+\hss}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\rightharpoondownElement}
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v1.03}{2009/11/26}{Harpoons added as PostScript procedures}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\rightharpoondownElement#1{%
+\leavevmode
+\raise0.2pt\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[-right to,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(0pt,0.28em) -- (#1,0.28em);}%
+\hss}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\leftharpoonupElement}
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v1.03}{2009/11/26}{Harpoons added as PostScript procedures}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\leftharpoonupElement#1{%
+\leavevmode
+\lower0.2pt\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[right to-,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(0pt,0.28em) -- (#1,0.28em);}%
+\hss}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\leftharpoondownElement}
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v1.03}{2009/11/26}{Harpoons added as PostScript procedures}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\leftharpoondownElement#1{%
+\leavevmode
+\lower0.2pt\hbox to#1{\hss%
+\tikz[baseline=(X.base)]{%
+\draw[left to-,line width=0.4pt]%
+(0pt,0pt) coordinate (X)
+(0pt,0.28em) -- (#1,0.28em);}%
+\hss}}
+% \end{macrocode}
+% \end{macro}
+%
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macro}{\llongrightharpoonup}
+% \begin{macro}{\llongrightharpoondown}
+% \begin{macro}{\llongleftharpoonup}
+% \begin{macro}{\llongleftharpoondown}
+% \begin{macrocode}
+\def\newllongrightharpoonup{\ensuremath{\mathrel{\rightharpoonupElement{28pt}}}}
+\def\newllongrightharpoondown{\ensuremath{\mathrel{\rightharpoondownElement{28pt}}}}
+\def\newllongleftharpoonup{\ensuremath{\mathrel{\leftharpoonupElement{28pt}}}}
+\def\newllongleftharpoondown{\ensuremath{\mathrel{\leftharpoondownElement{28pt}}}}
+%\let\llongrightharpoonup=\newllongrightharpoonup
+%\let\llongrightharpoondown=\newllongrightharpoondown
+%\let\llongleftharpoonup=\newllongleftharpoonup
+%\let\llongleftharpoondown=\newllongleftharpoondown
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macro}{\lllongrightharpoonup}
+% \begin{macro}{\lllongrightharpoondown}
+% \begin{macro}{\lllongleftharpoonup}
+% \begin{macro}{\lllongleftharpoondown}
+% \begin{macrocode}
+\def\newlllongrightharpoonup{\ensuremath{\mathrel{\rightharpoonupElement{35pt}}}}
+\def\newlllongrightharpoondown{\ensuremath{\mathrel{\rightharpoondownElement{35pt}}}}
+\def\newlllongleftharpoonup{\ensuremath{\mathrel{\leftharpoonupElement{35pt}}}}
+\def\newlllongleftharpoondown{\ensuremath{\mathrel{\leftharpoondownElement{35pt}}}}
+%\let\lllongrightharpoonup=\newlllongrightharpoonup
+%\let\lllongrightharpoondown=\newlllongrightharpoondown
+%\let\lllongleftharpoonup=\newlllongleftharpoonup
+%\let\lllongleftharpoondown\newlllongleftharpoondown
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \changes{v1.02}{2009/11/19}{Added}
+% \changes{v5.00}{2010/10/01}{Maintained for PDF mode}
+% \begin{macro}{\equilibarrow}
+% \begin{macro}{\equiliblongarrow}
+% \begin{macrocode}
+\def\newequilibarrow{\ensuremath{\mathrel{%
+\hbox to28pt{\hss\eqHarpoon@Element{28pt}\hss}}}}
+\def\newequiliblongarrow{\ensuremath{\mathrel{%
+\hbox to35pt{\hss\eqHarpoon@Element{35pt}\hss}}}}
+%\let\equilibarrow=\newequilibarrow
+%\let\equiliblongarrow=\newequiliblongarrow
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \section{Chemical Corrections}
+% (Deleted)
+%
+%
+% \section{XyMcompd and XyMtab Environments}
+% (Deleted)
+%
+% \section{Useful commands}
+% (Deleted)
+%
+% \section{Double and triple bonds}
+% (Deleted)
+%
+% \section{Curved Arrows and Harpoons}
+%
+% To illustrate the mechanisms of organic reactions,
+% curved arrows are used to show an electron shift.
+% First, the macros for drawing them are
+% defined as follows.
+% \changes{v1.01}{2004/08/30}{Added at XyMTeX V4.01}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+%
+% \begin{macro}{\electronAHshift}
+%
+% \begin{macrocode}
+\def\electronAHshift{%
+\@ifnextchar[{\@electronAHshift}{\@electronAHshift[0]}}
+\def\@electronAHshift[#1](#2,#3)(#4,#5)#6{%
+\@tempcntXa=#2 \@tempcntYa=#3
+\@tempcntXb=#4 \@tempcntYb=#5
+\calcontrolpoints{#1}%defined in chemist package
+\tikznodimension{%
+\draw [#6,line width=0.4pt]%%%% (0pt,0pt) coordinate (X)
+(#2\unitlength,#3\unitlength) ..
+controls (\@cnttempa\unitlength,\@cnttempb\unitlength) and
+(\@tempcntXc\unitlength,\@tempcntYc\unitlength) ..
+(#4\unitlength,#5\unitlength);}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% Arrows having a usual arrow head are defined as follows.
+% Keywords for differentiation are: r (right) and l (left),
+% which are contained in the middle of each command name.
+%
+% \begin{macro}{\electronrshiftarrow}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\electronrshiftarrow{%
+\@ifnextchar[{\@electronrshiftarrow}{\@electronrshiftarrow[0]}}
+\def\@electronrshiftarrow[#1](#2,#3)(#4,#5){%
+\ifnum#2<#4\relax
+\electronAHshift[#1](#2,#3)(#4,#5){-stealth}%
+\else
+\ifcase#1\relax
+\electronAHshift[1](#2,#3)(#4,#5){-stealth}%
+\or
+\electronAHshift[0](#2,#3)(#4,#5){-stealth}%
+\fi\fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\electronlshiftarrow}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\electronlshiftarrow{%
+\@ifnextchar[{\@electronlshiftarrow}{\@electronlshiftarrow[0]}}
+\def\@electronlshiftarrow[#1](#2,#3)(#4,#5){%
+\ifnum#2<#4\relax
+\electronAHshift[#1](#2,#3)(#4,#5){stealth-}%
+\else
+\ifcase#1\relax
+\electronAHshift[1](#2,#3)(#4,#5){stealth-}%
+\or
+\electronAHshift[0](#2,#3)(#4,#5){stealth-}%
+\fi\fi}
+\def\futuresubst#1{\kern140\unitlength #1}
+% \end{macrocode}
+% \end{macro}
+%
+% Arrows having a harpoon-type head are defined as follows.
+% Keywords for differentiation are:
+% Hru (harpoon right upward), Hrd (harpoon right downward),
+% Hlu (harpoon left upward), and Hld (harpoon left downward).
+%
+% \begin{macro}{\electronHrushiftarrow}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\electronHrushiftarrow{%
+\@ifnextchar[{\@electronHrushiftarrow}{\@electronHrushiftarrow[0]}}
+\def\@electronHrushiftarrow[#1](#2,#3)(#4,#5){%
+\ifnum#2<#4\relax
+\electronAHshift[#1](#2,#3)(#4,#5){-left to}%
+\else
+\ifcase#1\relax
+\electronAHshift[1](#2,#3)(#4,#5){-left to}%
+\or
+\electronAHshift[0](#2,#3)(#4,#5){-left to}%
+\fi\fi}
+% \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{\electronHrdshiftarrow}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\electronHrdshiftarrow{%
+\@ifnextchar[{\@electronHrdshiftarrow}{\@electronHrdshiftarrow[0]}}
+\def\@electronHrdshiftarrow[#1](#2,#3)(#4,#5){%
+\ifnum#2<#4\relax
+\electronAHshift[#1](#2,#3)(#4,#5){-right to}%
+\else
+\ifcase#1\relax
+\electronAHshift[1](#2,#3)(#4,#5){-right to}%
+\or
+\electronAHshift[0](#2,#3)(#4,#5){-right to}%
+\fi\fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\electronHlushiftarrow}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\electronHlushiftarrow{%
+\@ifnextchar[{\@electronHlushiftarrow}{\@electronHlushiftarrow[0]}}
+\def\@electronHlushiftarrow[#1](#2,#3)(#4,#5){%
+\ifnum#2<#4\relax
+\electronAHshift[#1](#2,#3)(#4,#5){right to-}%
+\else
+\ifcase#1\relax
+\electronAHshift[1](#2,#3)(#4,#5){right to-}%
+\or
+\electronAHshift[0](#2,#3)(#4,#5){right to-}%
+\fi\fi}
+% \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{\electronHrdshiftarrow}
+% \changes{v5.00}{2010/10/01}{Redefined for PDF mode}
+% \begin{macrocode}
+\def\electronHldshiftarrow{%
+\@ifnextchar[{\@electronHldshiftarrow}{\@electronHldshiftarrow[0]}}
+\def\@electronHldshiftarrow[#1](#2,#3)(#4,#5){%
+\ifnum#2<#4\relax
+\electronAHshift[#1](#2,#3)(#4,#5){left to-}%
+\else
+\ifcase#1\relax
+\electronAHshift[1](#2,#3)(#4,#5){left to-}%
+\or
+\electronAHshift[0](#2,#3)(#4,#5){left to-}%
+\fi\fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \section{Initial Setting and Switch to PDF (pgf package) Arrows}
+%
+% \begin{macro}{\chmstpdfsw}
+% \begin{macrocode}
+\def\chmstpdfsw{%setting of the chmst-pdf package
+\let\reactrarrow=\newreactrarrow%
+\let\reactlarrow=\newreactlarrow
+\let\reactlrarrow=\newreactlrarrow
+\let\reactEqarrow=\newreactEqarrow
+\let\reacteqarrow=\newreacteqarrow
+%%%%
+\let\reactREqarrow=\newreactREqarrow%
+\let\reactLEqarrow=\newreactLEqarrow
+\let\reactreqarrow=\newreactreqarrow
+\let\reactleqarrow=\newreactleqarrow
+%%%%
+\let\reactdarrow=\newreactdarrow%
+\let\reactuarrow=\newreactuarrow
+\let\reactduarrow=\newreactduarrow
+\let\reactVEqarrow=\newreactVEqarrow
+\let\reactveqarrow=\newreactveqarrow
+%%%%
+\let\reactnearrow=\newreactnearrow%
+\let\reactswarrow=\newreactswarrow
+%%%%
+\let\reactsearrow=\newreactsearrow%
+\let\reactnwarrow=\newreactnwarrow
+%%%%
+\let\reactDEqarrow=\newreactDEqarrow%
+\let\reactUEqarrow=\newreactUEqarrow
+\let\reactdeqarrow=\newreactdeqarrow
+\let\reactueqarrow=\newreactueqarrow
+%%%%
+\let\reactulrarrow=\newreactulrarrow%
+\let\reactdlrarrow=\newreactdlrarrow
+%%%%
+\let\schemelarrow=\newschemelarrow%
+\let\schemerarrow=\newschemerarrow
+\let\schemelrarrow=\newschemelrarrow
+%%%%
+\let\llongrightarrow=\newllongrightarrow%
+\let\llongleftarrow=\newllongleftarrow
+\let\llongleftrightarrow=\newllongleftrightarrow
+\let\Equilibarrow=\newEquilibarrow
+%%%
+\let\Llongrightarrow=\newLlongrightarrow%
+\let\Llongleftarrow=\newLlongleftarrow
+\let\Llongleftrightarrow\newLlongleftrightarrow
+%%%
+\let\lllongrightarrow=\newlllongrightarrow%
+\let\lllongleftarrow=\newlllongleftarrow
+\let\lllongleftrightarrow=\newlllongleftrightarrow
+\let\Equiliblongarrow=\newEquiliblongarrow
+%%%
+\let\Lllongrightarrow=\newLllongrightarrow%
+\let\Lllongleftarrow=\newLllongleftarrow
+\let\Lllongleftrightarrow\newLllongleftrightarrow
+%%%
+\let\llongrightharpoonup=\newllongrightharpoonup%
+\let\llongrightharpoondown=\newllongrightharpoondown
+\let\llongleftharpoonup=\newllongleftharpoonup
+\let\llongleftharpoondown=\newllongleftharpoondown
+%%%
+\let\lllongrightharpoonup=\newlllongrightharpoonup%
+\let\lllongrightharpoondown=\newlllongrightharpoondown
+\let\lllongleftharpoonup=\newlllongleftharpoonup
+\let\lllongleftharpoondown\newlllongleftharpoondown
+%%%
+\let\equilibarrow=\newequilibarrow%
+\let\equiliblongarrow=\newequiliblongarrow
+%%%
+}
+\let\chmstpspdfsw=\chmstpdfsw%compatibility to postscript mode
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+\chmstpdfsw%initial setting
+%</chmstpdf>
+% \end{macrocode}
+%
+% \Finale
+\endinput