Those are excellent examples!
I have just added them to HaskellWiki on the following page, and
credited them to you:
Common Misunderstandings - HaskellWiki
http://www.haskell.org/haskellwiki/Common_Misunderstandings
Good work!
-- Benjamin L. Russell
On Wed, 4 Mar 2009 21:54:05 +0000 (UTC), 7stud
Here are my top three:
1) Putting an equals sign after a function name when using guards:
myfunction x y = | x < 2 = "a" | y > 20 = "b" | otherwise = "c"
dhask.hs:2:4: parse error on input `|' Failed, modules loaded: none.
2) Writing "if" in front of the guard conditions:
myfunction x y = | if x < 2 = "a" | if y > 20 = "b" | otherwise = "c"
dhask.hs:2:25: parse error on input `=' Failed, modules loaded: none.
3) Not putting parentheses around arguments of the form x:xs
dosomething x:xs = head xs
dhask.hs:1:0: Parse error in pattern Failed, modules loaded: none.
In all three cases, the error messages don't help spot the problem. -- Benjamin L. Russell / DekuDekuplex at Yahoo dot com http://dekudekuplex.wordpress.com/ Translator/Interpreter / Mobile: +011 81 80-3603-6725 "Furuike ya, kawazu tobikomu mizu no oto." -- Matsuo Basho^