# Does LaTeX support the sarcmark?

Does LaTeX have an escape sequence for the open source sarcmark?

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\textexclamdown is an inverted exclamation point:

(found via Detexify)

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Writing ! (exclamation point followed by a backtick) is very easy:

\documentclass{article}
\begin{document}
Example: !
\end{document}


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Interesting. Didn't know the backtick had that effect. –  EricR Dec 17 '10 at 4:37
I'm stumped; I've got no idea what's happening. Can you please explain? –  Hendrik Vogt Dec 17 '10 at 10:47
@Hendrik: It's treated by TeX as a ligature. LaTeX defines \textexclamdown as alias (in OT1) in ot1enc.def: \DeclareTextCommand{\textexclamdown}{OT1}{!'}. –  Stefan Kottwitz Dec 17 '10 at 14:45
Thanks, now I understand: It's not TeX but depends on the font. –  Hendrik Vogt Dec 17 '10 at 19:46
of course it depends on the font! the glyph has to be there, after all. but latex will support \textexclamdown for any font it directly supports (e.g., t1-encoded ones, in which the glyph exists. –  wasteofspace Mar 7 '12 at 12:52