[Haskell-beginners] subRegex https? with anchor href tags

[Daniel Fischer]

On Saturday 12 November 2011, 11:30:39, Shakthi Kannan wrote:
> I then tried a simpler example:
> 
> Prelude Text.Regex> subRegex (mkRegex "e") "hello" "\\1"
> "h*** Exception: Ix{Int}.index: Index (1) out of range ((0,0))
> 
> What could I be missing?

Maybe the backreferences numbering starts at 0?
Worth a try.