Lens even supplies this as (&)
On Thu, Jul 11, 2013 at 5:18 PM, Andreas Abel <andreas.a...@ifi.lmu.de>wrote:
> I can do this without extra indentation:
>
> (|>) = flip ($)
>
> f = 5 |> \ x ->
> 6 |> \ y ->
> x + y
>
> Non-recursive let is as superfluous as the do-notation.
>
>
> On 11.07.2013 17:40, Carter Schonwald wrote:
>
>> Yup. Nested cases *are* non recursive lets.
>>
>> (Can't believe I forgot about that )
>>
>> On Thursday, July 11, 2013, Edward Kmett wrote:
>>
>> On Wed, Jul 10, 2013 at 3:47 AM, <o...@okmij.org <javascript:_e({},
>>
>> 'cvml', 'o...@okmij.org');>> wrote:
>>
>>
>> Jon Fairbairn wrote:
>> > It just changes forgetting to use different variable names
>> because of
>> > recursion (which is currently uniform throughout the language)
>> to
>> > forgetting to use non recursive let instead of let.
>>
>> Let me bring to the record the message I just wrote on
>> Haskell-cafe
>> http://www.haskell.org/**pipermail/haskell-cafe/2013-**
>> July/109116.html<http://www.haskell.org/pipermail/haskell-cafe/2013-July/109116.html>
>>
>> and repeat the example:
>>
>> In OCaml, I can (and often do) write
>>
>> let (x,s) = foo 1 [] in
>> let (y,s) = bar x s in
>> let (z,s) = baz x y s in ...
>>
>> In Haskell I'll have to uniquely number the s's:
>>
>> let (x,s1) = foo 1 [] in
>> let (y,s2) = bar x s1 in
>> let (z,s3) = baz x y s2 in ...
>>
>> and re-number them if I insert a new statement.
>>
>>
>> blah = case foo 1 [] of
>> (x, s) -> case bar x s of
>> (y, s) -> case baz x y s of
>> (z, s) -> ...
>>
>> -Edward
>>
>>
>>
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>>
>>
>
> --
> Andreas Abel <>< Du bist der geliebte Mensch.
>
> Theoretical Computer Science, University of Munich
> Oettingenstr. 67, D-80538 Munich, GERMANY
>
> andreas.a...@ifi.lmu.de
> http://www2.tcs.ifi.lmu.de/~**abel/ <http://www2.tcs.ifi.lmu.de/~abel/>
>
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