Re: [Haskell-cafe] minor refactoring problem

Martin,

Quick question: what's the difference between

importFile ed = readfile >=> fromRawFile >=> setEditor ed

and

importFile = readfile >=> fromRawFile >=> setEditor

that the former compiles but the latter doesn't?

Note that, in Haskell, function application has higher priority then any other infix operation. So, importFile ed = readfile >=> fromRawFile >=> setEditor ed is the same as importFile ed = readfile >=> fromRawFile >=> (setEditor ed) If you write importFile = readfile >=> fromRawFile >=> setEditor then this is (via eta expansion) more or less equivalent to importFile ed = (readfile >=> fromRawFile >=> setEditor) ed which is clearly not the same as the original definition. HTH, Stefan