| Copyright | Copyright (C) 2010 Uwe Schmidt |
|---|---|
| License | MIT |
| Maintainer | Uwe Schmidt (uwe\@fh-wedel.de) |
| Stability | experimental |
| Portability | portable |
| Safe Haskell | Safe |
| Language | Haskell98 |
Data.Tree.NavigatableTree.XPathAxis
Description
Navigatable trees need to have operations to move up, down, left and right. With these elementary operations, the XPath axises can be defined.
- maybeStar :: (a -> Maybe a) -> a -> [a]
- maybePlus :: (a -> Maybe a) -> a -> [a]
- parentAxis :: NavigatableTree t => t a -> [t a]
- ancestorAxis :: NavigatableTree t => t a -> [t a]
- ancestorOrSelfAxis :: NavigatableTree t => t a -> [t a]
- childAxis :: NavigatableTree t => t a -> [t a]
- descendantAxis :: NavigatableTree t => t a -> [t a]
- descendantOrSelfAxis :: NavigatableTree t => t a -> [t a]
- revDescendantOrSelfAxis :: NavigatableTree t => t a -> [t a]
- followingSiblingAxis :: NavigatableTree t => t a -> [t a]
- precedingSiblingAxis :: NavigatableTree t => t a -> [t a]
- selfAxis :: NavigatableTree t => t a -> [t a]
- followingAxis :: NavigatableTree t => t a -> [t a]
- precedingAxis :: NavigatableTree t => t a -> [t a]
- mvToRoot :: NavigatableTree t => t a -> t a
- isAtRoot :: NavigatableTree t => t a -> Bool
Documentation
maybeStar :: (a -> Maybe a) -> a -> [a] Source #
collect all trees by moving into one direction, starting tree is included
maybePlus :: (a -> Maybe a) -> a -> [a] Source #
collect all trees by moving into one direction, starting tree is not included
parentAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: parent
ancestorAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: ancestor
ancestorOrSelfAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: ancestor or self
childAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: child
descendantAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: descendant
descendantOrSelfAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: descendant or self
revDescendantOrSelfAxis :: NavigatableTree t => t a -> [t a] Source #
not an official XPath axis but useful: reverse descendant or self, used in preceding axis
followingSiblingAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: following sibling
precedingSiblingAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: preceeding sibling
selfAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: self
followingAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: following
precedingAxis :: NavigatableTree t => t a -> [t a] Source #
XPath axis: preceding
mvToRoot :: NavigatableTree t => t a -> t a Source #
move to the root
isAtRoot :: NavigatableTree t => t a -> Bool Source #