Don't spend too much time on the various libraries though. I tried
some simple things with Haskell and XML, but I found it really hard
to actually parse a simple document. You really don't want to write
your own parser.
The only tool that worked for me was HXT, which is based on arrows.
These are pretty hard to grasp right away, but really powerful. I
really like the way they are used in HXT, but it still feels a bit
weird sometimes.
Good luck, and keep us posted.
-chris
On Mar 22, 2007, at 7:52 AM, Andrew Wagner wrote:
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 <[EMAIL PROTECTED]> 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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