[Haskell] state of HaXml?
nr at eecs.harvard.edu
Wed Dec 27 18:11:18 EST 2006
I have some XML things to take care of, and I had hoped to use
a nice functional language with combinators. But I'm having
trouble getting HaXml to do anything useful. Here is a program
that I wrote just to read in the XML and prettyprint it.
But it fails with an error message. The 'expat' tool 'xmlwf'
claims the XML is well formed, and the XML was generated from
gpsbabel, a tool I trust to behave properly. And yet:
: nr at curlycoat 10429 ; xmlwf 2006-12-27-backup.gpx
: nr at curlycoat 10430 ; $AWD/Main 2006-12-27-backup.gpx
Main: Parse error: unexpected EOF
Here is Main.hs:
module Main where
import qualified Text.XML.HaXml as X
import qualified Text.XML.HaXml.Parse as XP
import qualified Text.XML.HaXml.Pretty as XPP
import qualified IO
import qualified System
load :: String -> IO X.Document
load fn = do handle <- IO.openFile fn IO.ReadMode
contents <- IO.hGetContents handle
return $ XP.xmlParse fn contents
main = do [xml] <- System.getArgs
d <- load xml
IO.putStrLn $ show $ XPP.document $ d
I'm using HaXml version 1.13.2-5 as distributed by Debian,
with GHC 6.6.
Does anyone have thoughts or suggestions? Is there software I should
prefer to HaXml? (I notice that HaXml does not understand XML Schema,
which I seem to be stuck with...)
More information about the Haskell