Class REXML::XPath
In: temp/xpath.rb
Parent: Object

Wrapper class. Use this class to access the XPath functions.

Methods

each   first   match  

Included Modules

Functions

Constants

EMPTY_HASH = {}

Public Class methods

each(element, path=nil, namespaces=nil, variables={})

Itterates over nodes that match the given path, calling the supplied block with the match.

element:The context element
path:The xpath to search for. If not supplied or nil, defaults to ’*’
namespaces:If supplied, a Hash which defines a namespace mapping 
 XPath.each( node ) { |el| ... }
 XPath.each( node, '/*[@attr='v']' ) { |el| ... }
 XPath.each( node, 'ancestor::x' ) { |el| ... }
first(element, path=nil, namespaces=nil, variables={})

Finds and returns the first node that matches the supplied xpath.

element:The context element
path:The xpath to search for. If not supplied or nil, returns the first node matching ’*’.
namespaces:If supplied, a Hash which defines a namespace mapping. 
 XPath.first( node )
 XPath.first( doc, "//b"} )
 XPath.first( node, "a/x:b", { "x"=>"http://doofus" } )
match(element, path=nil, namespaces=nil, variables={})

Returns an array of nodes matching a given XPath.

[Validate]