[Haskell-cafe] Need help with learning Parsec
C K Kashyap
ckkashyap at gmail.com
Thu Jul 19 17:01:36 CEST 2012
Thank you so much ... I've updated my monad version here -
and the Applicative version here -
The applicative version however does not seem to work.
Is there a good tutorial that I can look up for Parsec - I am checking out
http://legacy.cs.uu.nl/daan/download/parsec/parsec.html but I am looking
for a tutorial where a complex parser would be built ground up.
Next I'd like to take care of escaped angular brackets.
On Thu, Jul 19, 2012 at 7:40 PM, Christian Maeder
<Christian.Maeder at dfki.de>wrote:
> Am 19.07.2012 15:41, schrieb Simon Hengel:
> On Thu, Jul 19, 2012 at 03:34:47PM +0200, Simon Hengel wrote:
>>> openTag :: Parser String
>>> openTag = char '<' *> many (noneOf ">") <* char '>'
> if you disallow empty tags and "/" within tags, then you can avoid the
> notFollowedBy construct by:
> openTag = try (char '<' *> many1 (noneOf "/>")) <* char '>'
>>> endTag :: String -> Parser String
>>> endTag str = string "</" *> string str <* char '>'
>> Well yes, modified to what Christian Maeder just suggested.
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