[Haskell-cafe] A very nontrivial parser

[Stefan O'Rear]

On Fri, Jul 06, 2007 at 10:56:43AM +1000, Donald Bruce Stewart wrote:
> andrewcoppin:
> > Jonathan Cast wrote:
> > >On Thursday 05 July 2007, Andrew Coppin wrote:
> > >  
> > >>...OK, anybody have a solution that works in Haskell 98?
> > >>    
> > >
> > >Rank-2 types are perhaps /the/ most common, widely accepted extension to 
> > >Haskell 98, after the approved addendum for FFI and the draft addendum for 
> > >hierarchical modules.  I would really be concerned about using them (it's 
> > >certainly not like they're going to just disappear on you one day, like 
> > >say functional dependencies almost certainly will).  But that's just me.
> > >  
> > 
> > Personally, I just try to avoid *all* language extensions - mainly 
> > because most of them are utterly incomprehensible. (But then, perhaps 
> > that's just because they all cover extremely rare edge cases?)
> 
> Some cover edge cases, some are just useful.  What about:
> 
>     * the FFI
>     * bang patterns
>     * pattern guards
>     * newtype deriving
> 
> Surely, fairly simple, useful. Used a lot? :-)

How about . in module names?

Stefan