On Wed, Jan 6, 2010 at 6:15 PM, Reid Barton <rwbar...@math.harvard.edu>wrote:
> On Thu, Jan 07, 2010 at 10:23:35AM +1000, Tony Morris wrote: > > Can I import a module when using ghc -e? > > > > e.g. ghc -e "import Control.Monad; forM [[1,2,3]] reverse" > > One option is to create a file "imports.hs" which contains the text > "import Control.Monad", and then run > > ghc -e "forM [[1,2,3]] reverse" imports.hs > > I use this method in a short shell script "interact" so that I can > apply Haskell functions to files from the command line and don't have > to type the full qualified names of things in modules I use frequently. > Did you know you can put commands in $HOME/.ghci that will be loaded every time you run ghci? So, if you have modules that you commonly use put something like: :m + Control.Monad In your $HOME/.ghci file and then you can use ghci instead of this ghc -e trick. HTH, Jason
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