Beautiful, thanks! On Tue, Mar 17, 2015 at 4:02 PM, Michael Sloan wrote:

Hello!

I wrote some code to do this quite recently, as part of an internal tool at FP Complete. I've copied out the relevant functions and written an example of using it here: https://gist.github.com/mgsloan/ac77dd33326322fc6ccd

I hope that helps! -Michael

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G'day!

Is there an easy way to extract a single declaration from an Haskell

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file and print it with the original formatting?

[I could live with pretty printing, but the default prettyPrint gives me a very strange formatting where something like: main = do putStrLn "Hello" becomes: main = do putStrLn "Hello"]

The closest I've got is to parse the file with comments and then get inside Module ...decls and do printExact with an empty comment list for the decl I'm interested in. This gives me the original formatting and empty lines where comments were that I can then remove.

But if there was anything already out there that just take a String for

On Tue, Mar 17, 2015 at 9:12 AM, Maurizio Vitale wrote: source the

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toplevel I'm interested in and convert that only, I'd love to know.

Thanks,

Maurizio

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