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77 lines
2.1 KiB
77 lines
2.1 KiB
%%
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%% This is file `chemarr.sty',
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%% generated with the docstrip utility.
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%%
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%% The original source files were:
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%%
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%% chemarr.dtx (with options: `package')
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%%
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%% This is a generated file.
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%%
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%% Project: chemarr
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%% Version: 2016/05/16 v1.3
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%%
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%% Copyright (C)
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%% 2001, 2006 Heiko Oberdiek
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%% 2016-2019 Oberdiek Package Support Group
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%%
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%% This work may be distributed and/or modified under the
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%% conditions of the LaTeX Project Public License, either
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%% version 1.3c of this license or (at your option) any later
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%% version. This version of this license is in
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%% https://www.latex-project.org/lppl/lppl-1-3c.txt
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%% and the latest version of this license is in
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%% https://www.latex-project.org/lppl.txt
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%% and version 1.3 or later is part of all distributions of
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%% LaTeX version 2005/12/01 or later.
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%%
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%% This work has the LPPL maintenance status "maintained".
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%%
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%% The Current Maintainers of this work are
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%% Heiko Oberdiek and the Oberdiek Package Support Group
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%% https://github.com/ho-tex/oberdiek/issues
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%%
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%%
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%% This work consists of the main source file chemarr.dtx
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%% and the derived files
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%% chemarr.sty, chemarr.pdf, chemarr.ins, chemarr.drv,
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%% chemarr-example.tex.
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%%
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\NeedsTeXFormat{LaTeX2e}
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\ProvidesPackage{chemarr}%
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[2016/05/16 v1.3 Arrows for chemical reactions (HO)]
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\RequirePackage{amsmath}
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\newcommand{\xrightleftharpoons}[2][]{%
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\ensuremath{%
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\mathrel{%
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\settoheight{\dimen@}{\raise 2pt\hbox{$\rightharpoonup$}}%
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\setlength{\dimen@}{-\dimen@}%
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\edef\CA@temp{\the\dimen@}%
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\settoheight\dimen@{$\rightleftharpoons$}%
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\addtolength{\dimen@}{\CA@temp}%
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\raisebox{\dimen@}{%
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\rlap{%
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\raisebox{2pt}{%
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$%
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\ext@arrow 0359\rightharpoonupfill@{\hphantom{#1}}{#2}%
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$%
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}%
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}%
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\hbox{%
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$%
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\ext@arrow 3095\leftharpoondownfill@{#1}{\hphantom{#2}}%
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$%
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}%
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}%
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}%
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}%
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}
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\newcommand*{\leftharpoondownfill@}{%
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\arrowfill@\leftharpoondown\relbar\relbar
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}
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\newcommand*{\rightharpoonupfill@}{%
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\arrowfill@\relbar\relbar\rightharpoonup
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}
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\endinput
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%%
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%% End of file `chemarr.sty'.
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