Class REXML::XPath
In: lib/rexml/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]

ruby-doc.org is hosted and maintained by James Britt and Happy Camper Studios, a Ruby application development company in Phoenix, Arizona. The site was created in 2002 as part of the Ruby Documentation Project to promote the Ruby language and to help other Ruby hackers.

Documentation content on ruby-doc.org is provided by remarkable members of the Ruby community.

For more information on the Ruby programming language, visit ruby-lang.org.

Want to help improve Ruby's API docs? See Ruby Documentation Guidelines.