Re: Comments on bibulus.sty

On Sun, 20 Aug 2006 22:36:27 +0200, Thomas Widmann <[email protected]> =20
wrote:

> Morten H=F8gholm <[email protected]> wrote a long time
> ago:

A long time indeed...

>> 1) \cite should be a robust command, so use \DeclareRobustCommand
>> for it.
>
> Hmmmm, bibulus.sty at the moment has the following definition:
>
> \def\cite{%
>   \bgroup% Terminated by \bibulus@cite
>   \@ifnextchar[%]
>   {\bibulus@cite@withafter}%
>   {\bibulus@cite@plain}%
> }
>
> I haven't looked at this for a long time -- what is it doing?  Is it
> just trying to allow an optional argument in square brackets?  How
> does that fit in with \DeclareRobustCommand?

Something using \@ifnextchar or a similar look-ahead should always be =20
robust in case it finds itself in a moving argument, which tends to happe=
n =20
quite often. Using \DeclareRobustCommand to define it instead of \def wil=
l =20
work.
--=20
Morten