Ideas.Common.Traversal.Iterator

Contents

• Iterator type class
• List iterator

Description

Synopsis

• class Iterator a where
  • next :: a -> Maybe a
  • previous :: a -> Maybe a
  • first :: a -> a
  • final :: a -> a
  • position :: a -> Int
• isFirst :: Iterator a => a -> Bool
• isFinal :: Iterator a => a -> Bool
• hasNext :: Iterator a => a -> Bool
• hasPrevious :: Iterator a => a -> Bool
• searchForward :: Iterator a => (a -> Bool) -> a -> Maybe a
• searchBackward :: Iterator a => (a -> Bool) -> a -> Maybe a
• searchNext :: Iterator a => (a -> Bool) -> a -> Maybe a
• searchPrevious :: Iterator a => (a -> Bool) -> a -> Maybe a
• searchWith :: (a -> Maybe a) -> (a -> Bool) -> a -> Maybe a
• data ListIterator a

Iterator type class

List iterator