From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcin Borkowski <mbork@wmi.amu.edu.pl>
Subject: Re: Replace EMAIL keyword by some LaTeX command
Date: Tue, 15 Oct 2013 21:19:53 +0200
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Dnia 2013-10-15, o godz. 02:11:53
Rasmus <rasmus@gmx.us> napisa=C5=82(a):

> Hi Xavier,
>=20
> Xavier Garrido <xavier.garrido@gmail.com> writes:
>=20
> But you have to be certain that this command is present.
>=20
> You could use etoolbox to test it.  That brings in another dependency,
> tho.

Not really.

\providecommand{\email}[1]{whatever you like}

works like \newcommand, but if \email is defined, it doesn't change
it's definition.

Just my 2c.

--=20
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Adam Mickiewicz University