[Haskell-cafe] Better versions of this code

Hey All, I wrote some quick code to change mediawiki preformatted text (adjacent lines begining with a ' ') to nowiki blocks (first line with a ' ' and rest enclosed in <nowiki>...</nowiki> quotes). http://lpaste.net/94688 I frequently find myself pretty unsatisfied with this type of code though. Anyone have any rewrites that would help teach me how to do this more elegantly in the future. Thanks! -Tyson PS: The mediawiki text I was using the above on has no existing <nowiki>...</nowiki> blocks.