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Module: REXML::Node

Overview

Represents a node in the tree. Nodes are never encountered except as superclasses of other objects. Nodes have siblings.

Instance Attribute Summary

Instance Method Summary

Instance Attribute Details

#parent? ⇒ Boolean (readonly)

[ GitHub ] 

  


# File 'lib/rexml/node.rb', line 48



def parent?
  false;
end


  







Instance Method Details



  

    #each_recursive(&block)  
  



  

    

Visit all subnodes of self recursively


  



  [ GitHub ]


  

  


# File 'lib/rexml/node.rb', line 54



def each_recursive(&block) # :yields: node
  stack = []
  each { |child| stack.unshift child if child.node_type == :element }
  until stack.empty?
    child = stack.pop
    yield child
    n = stack.size
    child.each { |grandchild| stack.insert n, grandchild if grandchild.node_type == :element }
  end
end


  








  

    #find_first_recursive(&block)  
  



  

    

Find (and return) first subnode (recursively) for which the block evaluates to true. Returns nil if none was found.


  



  [ GitHub ]


  

  


# File 'lib/rexml/node.rb', line 67



def find_first_recursive(&block) # :yields: node
  each_recursive {|node|
    return node if block.call(node)
  }
  return nil
end


  








  

    #indent(to, ind)  
  

  [ GitHub ]


  

  


# File 'lib/rexml/node.rb', line 39



def indent to, ind
                    if @parent and @parent.context and not @parent.context[:indentstyle].nil? then
                            indentstyle = @parent.context[:indentstyle]
                    else
                            indentstyle = '  '
                    end
                    to << indentstyle*ind unless ind<1
end


  








  

    #index_in_parent  
  



  

    

Returns the position that self holds in its parent’s array, indexed from 1.


  



  [ GitHub ]


  

  


# File 'lib/rexml/node.rb', line 76



def index_in_parent
  parent.index(self)+1
end


  








  

    #next_sibling_node  ⇒ Object 
    Also known as: #next_sibling
  



  

    
  





  
Returns:


    
  
  • 
    
    
    

    the next sibling (nil if unset)
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rexml/node.rb', line 11



def next_sibling_node
  return nil if @parent.nil?
  @parent[ @parent.index(self) + 1 ]
end


  








  

    #previous_sibling_node  ⇒ Object 
    Also known as: #previous_sibling
  



  

    
  





  
Returns:


    
  
  • 
    
    
    

    the previous sibling (nil if unset)
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rexml/node.rb', line 17



def previous_sibling_node
  return nil if @parent.nil?
  ind = @parent.index(self)
  return nil if ind == 0
  @parent[ ind - 1 ]
end


  








  

    #to_s(indent = nil)  
  



  

    
indent




DEPRECATED This parameter is now ignored.  See the formatters in the REXML::Formatters package for changing the output style.




  



  [ GitHub ]


  

  


# File 'lib/rexml/node.rb', line 27



def to_s indent=nil
  unless indent.nil?
    Kernel.warn( "#{self.class.name}.to_s(indent) parameter is deprecated", uplevel: 1)
    f = REXML::Formatters::Pretty.new( indent )
    f.write( self, rv = "" )
  else
    f = REXML::Formatters::Default.new
    f.write( self, rv = "" )
  end
  return rv
end