[Haskell-cafe] Indentation woes
stefanor at cox.net
Thu Jul 26 15:23:37 EDT 2007
On Thu, Jul 26, 2007 at 02:56:57PM -0400, anon wrote:
> I wish to be able to indent my code like so:
>> longFunctionName various and sundry arguments
>> | guard1 = body1
>> | guard2 = body2
>> | ...
>> where declarations
> That is, with guards and where clauses indented to the same level as
> the function name.
> This seems like a perfectly reasonable indentation style to me. It
> also happens to be the preferred style in Clean, another
> layout-sensitive functional language. I believe it is not uncommon in
> ML dialects as well. So why is it that I'm not allowed to use it in
Because in Haskell everything that is lined up is a new logical line.
Haskell requires all continuation lines to be indented:
longFunctonName various and sundry arguments
| guard1 = body1
| guard2 = body2
As for "why", it's just a matter of Haskell Committee taste. Nothing
too deep, just an arbitrary set of rules.
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