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+% Copyright (C) 2009 Michał Masłowski
+
+% This file is free software: you can redistribute it and/or modify it
+% under the terms of the GNU General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% This file is distributed in the hope that it will be useful, but
+% WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+% General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this program. If not, see <http://www.gnu.org/licenses/>.
+%
+% As a special exception, when this file is read by TeX when
+% processing a TeX source document, you may use the result without
+% restriction.
+
+
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{onedash}[2009/05/09 language-dependent dashes]
+
+% Declare option #1 providing quotes consisting of #2 space, #3
+% character and #4 space after it.
+\newcommand{\onedash@declare}[4]{%
+ \DeclareOption{#1}{%
+ \def\onedash@makeit{%
+ \newcommand{\dash}{#2#3#4}
+ \newcommand{\pdash}{#3#4}}}}
+
+\onedash@declare{american}{}{\textemdash}{\hskip0pt}
+\onedash@declare{british}{~}{\textendash}{\ }
+\onedash@declare{polish}{~}{\textendash}{\ }
+\onedash@declare{polish-emdash}{~}{\textemdash}{\ }
+
+\ExecuteOptions{american}\relax % The default.
+\ProcessOptions\relax
+\onedash@makeit
+
+% Hyphen used in Polish.
+\newcommand\hyph{\kern0pt\discretionary{-}{-}{-}\penalty10000\hskip0pt\relax}