[Haskell-cafe] Need help with learning Parsec

[C K Kashyap]

Thank you so much ... I've updated my monad version here -

https://github.com/ckkashyap/LearningPrograms/blob/master/Haskell/Parsing/xml_1.hs<https://github.com/ckkashyap/LearningPrograms/blob/master/Haskell/Parsing/xml_2.hs>


and the Applicative version here -
https://github.com/ckkashyap/LearningPrograms/blob/master/Haskell/Parsing/xml_2.hs


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.

Regards,
Kashyap


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 '>'
>
> C.
>
>
>
>>>      endTag :: String -> Parser String
>>>      endTag str = string "</" *> string str <* char '>'
>>>
>>
>> Well yes, modified to what Christian Maeder just suggested.
>>
>> Cheers,
>> Simon
>>
>>
>
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