Paul questions

Paul answers

• How to retrieve value from optional parser in Parsec?
• What's the alternative to exceptions in a deep Haskell recursion?
• Clearing WinGhci's command prompt (and also its values)
• Optimal declaration of variables with regards to scope
• How to return a char array created in function?
• Haskell and State
• How to catch (and ignore) a call to the error function?