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+\ProvidesPackage{recipe}[2020/01/30 Recipe Typesetting for OpenCookbook]
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+
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+\ProcessOptions\relax
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+
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+\RequirePackage{etoolbox}
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+\RequirePackage{nicefrac}
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+\RequirePackage{booktabs}
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+\RequirePackage{changepage}
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+
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+\newcommand\half{\nicefrac{1}{2}}
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+\newcommand\quarter{\nicefrac{1}{4}}
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+\newcommand\third{\nicefrac{1}{3}}
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+\newcommand\twothirds{\nicefrac{2}{3}}
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+\newcommand\threequarters{\nicefrac{3}{4}}
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+
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+\newcommand\recipe@ingredient[2]{#1 & #2 \\}
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+\newcommand\recipe@serving[1]{\ifempty{#1}{}{\textit{#1 servings}}}
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+\newcommand\recipe@contributor[1]{\ifempty{#1}{}{Courtesy of #1}}
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+
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+\newenvironment{recipe}[1]{%
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+ \bigskip%
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+ \begin{adjustwidth}{4em}{4em}%
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+ \centerline{\textbf{#1}}%
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+ \recipe@contributor{#2}\hfill\recipe@servings{#3}\\
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+ \newenvironment{note}{\textit{Note:}}{}
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+ \newenvironment{ingredients}{%
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+ \smallskip%
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+ \begin{center}%
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+ \let\ingredient=\recipe@ingredient
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+ \begin{tabular}{lr}
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+ \toprule%
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+ }{%
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+ \bottomrule%
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+ \end{tabular}%
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+ \end{center}%
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+ \smallskip%
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+ }%
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+ \smallskip
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+ }{%
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+ \end{adjustwidth}%
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+ \bigskip%
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+}
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+
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+\endinput
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