[Haskell-cafe] Is this Parsec code idiomatic?
Martijn van Steenbergen
martijn at van.steenbergen.nl
Fri Sep 4 15:40:36 EDT 2009
Serge LE HUITOUZE wrote:
> I'm asking some advice on a small piece of code representing a
> simplified version of a treatment I need to perform.
> I have a line-oriented string/file, from which I want to extract
> only a substring of those lines starting with char '+' (the detail
> of the extraction is irrelevant here, I'll just return what follows
> the '+').
This isn't really answering your question, but I thought I'd share
anyway: why use Parsec to retrieve those lines? It seems a simple
function is a lot easier:
selectPlus :: String -> [String]
selectPlus = map tail . filter ((== '+') . head) . lines
I hope this helps you.
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