Class: XmlNode

Inherits:
Object
  • Object
show all
Defined in:
lib/action_controller/vendor/xml_node.rb

Overview

SimpleXML like xml parser. Written by leon breet from the ruby on rails Mailing list

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(node, options = {}) ⇒ XmlNode

Returns a new instance of XmlNode.


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# File 'lib/action_controller/vendor/xml_node.rb', line 7

def initialize(node, options = {})
  @node = node
  @children = {}
  @raise_errors = options[:raise_errors]
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object


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# File 'lib/action_controller/vendor/xml_node.rb', line 47

def method_missing(name, *args)
  name = name.to_s
  nodes = nil
  @node.each_element(name) do |element|
    nodes ||= XmlNodeList.new
    nodes << (@children[element] ||= XmlNode.new(element))
  end
  nodes
end

Instance Attribute Details

#nodeObject (readonly)

Returns the value of attribute node


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# File 'lib/action_controller/vendor/xml_node.rb', line 5

def node
  @node
end

Class Method Details

.from_xml(xml_or_io) ⇒ Object


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# File 'lib/action_controller/vendor/xml_node.rb', line 13

def self.from_xml(xml_or_io)
  document = REXML::Document.new(xml_or_io)
  if document.root 
    XmlNode.new(document.root) 
  else
    XmlNode.new(document) 
  end
end

Instance Method Details

#<<(node) ⇒ Object


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# File 'lib/action_controller/vendor/xml_node.rb', line 57

def <<(node)
  if node.is_a? REXML::Node
    child = node
  elsif node.respond_to? :node
    child = node.node
  end
  @node.add_element child
  @children[child] ||= XmlNode.new(child)
end

#[](name) ⇒ Object


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# File 'lib/action_controller/vendor/xml_node.rb', line 67

def [](name)
  @node.attributes[name.to_s]
end

#[]=(name, value) ⇒ Object


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# File 'lib/action_controller/vendor/xml_node.rb', line 71

def []=(name, value)
  @node.attributes[name.to_s] = value
end

#node_encodingObject


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# File 'lib/action_controller/vendor/xml_node.rb', line 22

def node_encoding
  @node.encoding
end

#node_nameObject


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# File 'lib/action_controller/vendor/xml_node.rb', line 26

def node_name
  @node.name
end

#node_valueObject


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# File 'lib/action_controller/vendor/xml_node.rb', line 30

def node_value
  @node.text
end

#node_value=(value) ⇒ Object


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# File 'lib/action_controller/vendor/xml_node.rb', line 34

def node_value=(value)
  @node.text = value
end

#to_iObject


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# File 'lib/action_controller/vendor/xml_node.rb', line 79

def to_i
  to_s.to_i
end

#to_sObject


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# File 'lib/action_controller/vendor/xml_node.rb', line 75

def to_s
  @node.to_s
end

#xpath(expr) ⇒ Object


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# File 'lib/action_controller/vendor/xml_node.rb', line 38

def xpath(expr)
  matches = nil
  REXML::XPath.each(@node, expr) do |element|
    matches ||= XmlNodeList.new
    matches << (@children[element] ||= XmlNode.new(element))
  end
  matches
end