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%%
%% This is file `chemarr.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% chemarr.dtx (with options: `package')
%%
%% This is a generated file.
%%
%% Copyright (C) 2001, 2006 by
%% Heiko Oberdiek <heiko.oberdiek at googlemail.com>
%%
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either
%% version 1.3c of this license or (at your option) any later
%% version. This version of this license is in
%% http://www.latex-project.org/lppl/lppl-1-3c.txt
%% and 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".
%%
%% This Current Maintainer of this work is Heiko Oberdiek.
%%
%% This work consists of the main source file chemarr.dtx
%% and the derived files
%% chemarr.sty, chemarr.pdf, chemarr.ins, chemarr.drv,
%% chemarr-example.tex.
%%
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{chemarr}%
[2006/02/20 v1.2 Chemical reaction arrows (HO)]
\RequirePackage{amsmath}
\newcommand{\xrightleftharpoons}[2][]{%
\ensuremath{%
\mathrel{%
\settoheight{\dimen@}{\raise 2pt\hbox{$\rightharpoonup$}}%
\setlength{\dimen@}{-\dimen@}%
\edef\CA@temp{\the\dimen@}%
\settoheight\dimen@{$\rightleftharpoons$}%
\addtolength{\dimen@}{\CA@temp}%
\raisebox{\dimen@}{%
\rlap{%
\raisebox{2pt}{%
$%
\ext@arrow 0359\rightharpoonupfill@{\hphantom{#1}}{#2}%
$%
}%
}%
\hbox{%
$%
\ext@arrow 3095\leftharpoondownfill@{#1}{\hphantom{#2}}%
$%
}%
}%
}%
}%
}
\newcommand*{\leftharpoondownfill@}{%
\arrowfill@\leftharpoondown\relbar\relbar
}
\newcommand*{\rightharpoonupfill@}{%
\arrowfill@\relbar\relbar\rightharpoonup
}
\endinput
%%
%% End of file `chemarr.sty'.
|
