[Haskell-cafe] Precedence and associativity in a pretty-printer

[Allan Clark]

Edsko de Vries wrote:
> Hi,
>
> Is there a nice way to pretty-print such an expression with the minimal
> number of brackets? I can come up with something, but I'm sure somebody
> thought hard about this problem before and came up with a really nice
> solution :)
>
> Any hints or pointers would be appreciated,
>
> Thanks,
>
>   
You might find Norman Ramsey's paper on unparsing helpful:

http://citeseer.ist.psu.edu/194913.html
or google for
Norman Ramsey Unparsing

regards
allan