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Re: possibly incorrect indentation or mismatched brackets

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meInvent bbird <jobmattcon@gmail.com> writes:

> in ghci, run code below , it can run without error

It's complicated.  There are two forms of let.  One is an expression and
has in 'in' part:

  let x = 42 in x*x

The other appears in do blocks and list comprehensions and just
introduced a new binding.  This is the form you are using when you type
let at ghci.

> but after put in file test.hs
>
> then :l test.hs
>
> got error
>
> Prelude> :l trees.hs
> [1 of 1] Compiling Main             ( trees.hs, interpreted )
>     parse error (possibly incorrect indentation or mismatched brackets)
> Failed, modules loaded: none.
>
>
> import Data.List
> import Control.Monad
> import Math.Combinat
> import System.IO
> import Data.Map (Map)
> import qualified Data.Map as Map
>
> let allparams = replicateM 2 [0.0, 1.0]
> let a1 = [0.0, 1.0, 1.0, 1.0]
> let a2 = [0.0, 0.0, 0.0, 1.0]
> let a3 = [1.0, 1.0, 0.0, 1.0]

These should be top-level definitions (i.e. just remove the let
keyword).

<snip>
-- 
Ben.

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possibly incorrect indentation or mismatched brackets meInvent bbird <jobmattcon@gmail.com> - 2016-07-18 02:30 -0700
  Re: possibly incorrect indentation or mismatched brackets Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-07-18 15:20 +0100
    Re: possibly incorrect indentation or mismatched brackets meInvent bbird <jobmattcon@gmail.com> - 2016-07-18 20:29 -0700

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