Class: LibXmlNode

Inherits:
Object
  • Object
show all
Defined in:
lib/libxml_to_hash.rb

Overview

This class is required to represent Nodes that contain attributes as well as other content, for example: <karin zak=“lebt”>schon</karin> We cannot non-ambigiously represent this node as a hash because Hashes may contain arbitrary keys. Having a separate class for representing such nodes allows for easy testing for the class (which we have to do anyway since hash values may be Strings, Arrays or other Hashes already) Update: No need for testing when using the iterable method. Usage: LibXmlNode.new(“karin”, “zak”)

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LibXmlNode

Returns a new instance of LibXmlNode.



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# File 'lib/libxml_to_hash.rb', line 25

def initialize
  @subnodes = {}
  @attributes = {}
  @text = ""
end

Instance Attribute Details

#attributes ⇒ Object

Returns the value of attribute attributes.



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# File 'lib/libxml_to_hash.rb', line 22

def attributes
  @attributes
end

#subnodes ⇒ Object

Returns the value of attribute subnodes.



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# File 'lib/libxml_to_hash.rb', line 21

def subnodes
  @subnodes
end

#text ⇒ Object

Returns the value of attribute text.



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# File 'lib/libxml_to_hash.rb', line 23

def text
  @text
end

Class Method Details

.create(n, a, t) ⇒ Object 



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# File 'lib/libxml_to_hash.rb', line 31

def self.create(n, a, t)
  l = LibXmlNode.new
  l.subnodes = n
  l.attributes = a
  l.text = t
  l
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/libxml_to_hash.rb', line 71

def ==(other)
  if other.class == LibXmlNode
    if @subnodes == other.subnodes and @attributes == other.attributes and @text == other.text
      return true
    end
  end
  false
end

#add_attribute(key, value) ⇒ Object 



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# File 'lib/libxml_to_hash.rb', line 39

def add_attribute(key, value)
  @attributes[key] = value
end

#add_node(key, value) ⇒ Object 



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# File 'lib/libxml_to_hash.rb', line 43

def add_node(key, value)
  if @subnodes[key] 
    if @subnodes[key].is_a? Object::Array
      @subnodes[key] << value
    else
      @subnodes[key] = [@subnodes[key], value]
    end
  else
    @subnodes[key] = value
  end
end

#add_text(t) ⇒ Object 



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# File 'lib/libxml_to_hash.rb', line 55

def add_text(t)
  @text << t
end

#iterable ⇒ Object 



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# File 'lib/libxml_to_hash.rb', line 80

def iterable
  [self]
end

#simplify ⇒ Object 



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# File 'lib/libxml_to_hash.rb', line 59

def simplify
  if @attributes.empty?
    if @text == ""
      return @subnodes
    end
    if @subnodes == {}
      return @text
    end
  end
  return self
end