Or for a bit of variety: selectPlus s = [cs | ('+':cs) <- lines s] --Ben On 4 Sep 2009, at 20:40, Martijn van Steenbergen wrote:
Hi Serge,
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.
Martijn.
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