Method: Dom::Node#add_node

Defined in:
lib/dom/node.rb

#add_node(path, node) ⇒ Object #add_node(node) ⇒ Object

There are three different cases

  1. Last Childnode i.e. “.foo” -> Append node as child

  2. absolute path i.e. “Foo” -> delegate path resolution to Dom.root

  3. relative path i.e. “.bar.foo”

    1. if there is a matching child for first element, delegate adding to this node

    2. create NoDoc node and delegate rest to this NoDoc

Overloads:

  • #add_node(path, node) ⇒ Object

    Parameters:

  • #add_node(node) ⇒ Object

    Parameters:



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# File 'lib/dom/node.rb', line 258

def add_node(*args)      
  
  # Grabbing right overload
  if args.count == 2
    node = args[1]
    path = args[0]        
  elsif args.count == 1
    node = args[0]
            
    path = '.'+node.name
    raise NoPathGiven.new("#{node} has no path.") if path.nil?
  else
    raise ArgumentError.new "Wrong number of arguments #{args.count} for 1 or 2"      
  end      
  
  leaf = LEAF.match path
  
  if leaf
    # node found, lets insert it
    add_child(leaf[:name], node)
    
  else
    matches = RELATIVE.match path
    
    if matches
      name = matches[:first].to_s
      
      # node not found, what to do?
      add_child(name, NoDoc.new(name)) if self[name].nil?
      
      # everything fixed, continue with rest
      self[name].add_node(matches[:rest], node)          
  
    else
      # has to be an absolute path or something totally strange
      raise WrongPath.new(path) unless ABSOLUTE.match path
      
      # begin at top, if absolute
      Dom.add_node '.' + path, node        
    end        
  end      
end