On 4 October 2010 23:54, c8h10n4o2 <asaferibeiro4@ymail.com> wrote:

By the way, there is a parser that returns [String] for my case?

If you are trying to parse strings (of alphaNum's) separated by commas, you can use "many alphaNum" (or "many1 alphaNum" depending on what you want) instead of simply using alphaNum. The type of the complete parser will then be Parser [String].

alphaNum :: Parser Char

alphaNums :: Parser String

alphaNums = many alphaNum

alphaNums1 :: Parser String

alphaNums1 = many1 alphaNum

Ozgur