Outlaw tabs

[Cale Gibbard]

2009/1/24 Duncan Coutts <duncan.coutts at worc.ox.ac.uk>:
> A lot of projects use -Wall. If there is consensus on the tabs issue
> then we could ask for -fwarn-tabs to be included in -Wall. That should
> be a good first step. If we cannot achieve consensus within the
> community for having -Wall include -fwarn-tabs then we have no hope of
> banning them in the language definition.
>
> So lets first test test the waters on that proposal.
>
> Duncan

+1 for treating tab characters outside comments as a lexical error,
and of course if you'd like to add -fwarn-tabs to -Wall first that
would be fine with me.

 - Cale