hxt-9.3.1.16: A collection of tools for processing XML with Haskell.

CopyrightCopyright (C) 2010 Uwe Schmidt
LicenseMIT
MaintainerUwe Schmidt (uwe\@fh-wedel.de)
Stabilityexperimental
Portabilityportable
Safe HaskellSafe
LanguageHaskell98

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.

Synopsis

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