Thanks. [s|_0 + _1|] = \x y->x+y is supported. I simply like [s|_+_|] better personally. And [s|_+_ı|] is for \x->x+x. I have to admit that 'ı' character is not very recognizable though. Any suggestions of another 'Letter, Lowercase' unicode character that no one would use as a variable name and can be easily input in vim are welcome. At 2014-04-08 05:12:26,"Alois Cochard" <alois.cochard@gmail.com> wrote: In order to give a more constructive feedback, why not simply indexing arguments by position and use the `_N` syntax? The second example would be: _0 : _1 : _1 : _2 : _2 : _2 : _0 : [] One could just use `_` if there is only one arg: _ + _ (which mean what Kim thought it would mean) and use: _0 + _1 (for the case you wanted to support) Cheers On 7 April 2014 22:01, Alois Cochard <alois.cochard@gmail.com> wrote: I just want to add that I find the syntax extremely confusing and counter intuitive. I thought it was just me, or that I was missed something. But it looks like I'm not the only one. On 7 April 2014 21:58, Kim-Ee Yeoh <ky3@atamo.com> wrote: On Mon, Apr 7, 2014 at 11:02 PM, ducis <ducis_cn@126.com> wrote: It lets your write lambdas with 'slots' without inventing names for the parameters. [s| ı + ı |] = \x y -> x+y I have no background in this 'slot lambda' and a search reveals this package as the only hit. Which may explain why I find the example given confusing. Why would [s| 1+1 |] not be equivalent to \x->x+x ? -- Kim-Ee _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Alois Cochard http://aloiscochard.blogspot.com http://twitter.com/aloiscochard http://github.com/aloiscochard -- Alois Cochard http://aloiscochard.blogspot.com http://twitter.com/aloiscochard http://github.com/aloiscochard