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\RequirePackage{expl3}
\ProvidesExplPackage{emotion}{2024/02/13}{0.2}{LaTeX emoji}
\RequirePackage { fontspec }
\ExplSyntaxOn
% add emotion command
\newfontface \emotionfont: { Twemoji~Mozilla } [ Renderer = Harfbuzz ]
% enable update emoji font
\newcommand{\emotionsetup}[1]{
\renewfontface \emotionfont: {#1} [ Renderer = HarfBuzz]
}
% define emoji with unicode
% 1: id
% 2: unicode value
\newcommand{\emotiondef}[2]{
\tl_const:cn{l__emotion_ #1}{#2}
}
% import pre-defined emotion
\file_input:n { emotion.def }
\tl_set:Nn \l__emotion_nodef_tl {❓}
\newcommand{\emotion}[1]{
\ifcsname l__emotion_#1\endcsname
{\emotionfont:{\tl_use:c {l__emotion_ #1}}}
\else
{\emotionfont:#1}
\fi
}
\ExplSyntaxOff
\endinput
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