Am Sonntag, 17. Februar 2008 14:41 schrieb Neil Mitchell:
Hi
2) You would hope there is a quick way to search those symbols. But most search engines do not treate symbols friendly, often just ignore them. I typed ~> in Hoogle, it also returned nothing. 3) If the module defining the symbol is not in standard library, it is not possible to look up the symbol in the core library index.
The next version of Hoogle will allow you to search all the modules on Hackage, i.e. it will find ~>. A month after I have written my thesis this will all be done :-)
Thanks
Neil
I think, it won’t find it. As Cale said, it’s a type variable. It’s like the “a” in the following definition: data T a = T a a I think, Conal Elliott used an operator type variable in order to make his code more readable. The (~>) is a type parameter which stands for an arrow type. Best wishes, Wolfgang