Hi Rodrigo,
> I´m just starting with HXT. My question is, how can I expose a "use case"
> from the main function below (the XmlPickler for UseCase has been already
> defined):
>
> main :: IO ()
> main = do
> runX ( xunpickleDocument xpUseCase [ (a_validate,v_0) ], "uc.xml" )
> return ()
>
> For example, if I just want to show the use case contents, how can I call
> "show" for a retrived use case.
-------------------------------------
1. version
main :: IO ()
main = do
[x] <- runX ( xunpickleDocument xpUseCase [ (a_validate,v_0) ],
"uc.xml" )
print x
return ()
x is processed outside the arrow
-------------------------------------
2. version
main :: IO ()
main = do
runX ( xunpickleDocument xpUseCase [ (a_validate,v_0) ], "uc.xml"
>>>
arrIO print
)
return ()
x is processed within an arrow by lifting the print function to then arrow
level.
------------------------------------
There is a new wiki page about picklers
http://www.haskell.org/haskellwiki/HXT/Conversion_of_Haskell_data_from/to_XML
Cheers,
Uwe
--
Uwe Schmidt
Web: http://www.fh-wedel.de/~si/
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