Haskell Equivalent of OCaml's Format library

Does Haskell have 开发者_如何学JAVAa library that does the same thing that OCaml's (Format library)? Or, what is the easiest way to pretty-print an abstract syntax tree in Haskell?

Thanks.

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I really like using the wl-pprint package. It gives you loads of flexibility in very elegant code. See here for some nice documentation.

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Is Text.PrettyPrint what you are looking for?

http://www.haskell.org/haskellwiki/Applications_and_libraries/Compiler_tools#Pretty_printing

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Text.Printf, i guess.