[Haskell-cafe] XML Validation and Digestion in Haskell

[Andrew Wagner]

Hi Arun,
Your problem description seems a little vague - which is
understandable, considering how embedded in your business model it is.
As for general recommendations, I'm no guru, but I would suggest
looking at the existing XML libraries in Haskell [1], and if that's
not powerful enough, check out parsec[2] for building a custom parser.
I think to get more specific recommendations, you would need to give
more details about the problem. Hope this helps somewhat. Andrew

[1]: http://www.haskell.org/haskellwiki/Libraries_and_tools/Web_programming#XML_2
[2]: http://www.cs.uu.nl/people/daan/download/parsec/parsec.html


On 3/22/07, Arun Suresh <arun.suresh at gmail.com> wrote:
> Hi..
>
> I am currently working on a project where basically we do a lot of XML
> validation and digestion. For example :
> We recieve an XML document A, if the document passes schema validation, we
> do some business level validations, then from A, we create XML digests B, C
> and D.
> Our code-base is written completely in Java. We had earlier tried using
> XSLT, but it became too unwieldy to manage (we ended up making calls to
> other Java classes from the XSLT engine)
>
> The problem we are facing right now is that we have huge hierarchies of
> Validators, Digestors and Contexts. It just doesnt look right. I just cant
> help but wonder if theres a better way of doing this...
>
> I have been trying to get my hands dirty with Haskell for a couplo weeks
> now. all the while keeping the problem at hand in the back of my mind.. I
> just dont seem to be see how applying functional programming concepts can
> help in this scenario.. Was wondering if somebody could probably give me
> some pointers..
>
> Regards
> Arun
>
>
>
>
>
>
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