In Files

  • psych/lib/psych/nodes/node.rb

Psych::Nodes::Node

The base class for any Node in a YAML parse tree. This class should never be instantiated.

Attributes

children[R]

The children of this node

end_column[RW]

The column number where this node ends

end_line[RW]

The line number where this node ends

start_column[RW]

The column number where this node start

start_line[RW]

The line number where this node start

tag[R]

An associated tag

Public Class Methods

new() click to toggle source

Create a new Psych::Nodes::Node

 
               # File psych/lib/psych/nodes/node.rb, line 32
def initialize
  @children = []
end

Public Instance Methods

alias?() click to toggle source 
 
               # File psych/lib/psych/nodes/node.rb, line 66
def alias?;    false; end
document?() click to toggle source 
 
               # File psych/lib/psych/nodes/node.rb, line 67
def document?; false; end
each(&block) click to toggle source

Iterate over each node in the tree. Yields each node to block depth first.

 
               # File psych/lib/psych/nodes/node.rb, line 39
def each &block
  return enum_for :each unless block_given?
  Visitors::DepthFirst.new(block).accept self
end
mapping?() click to toggle source 
 
               # File psych/lib/psych/nodes/node.rb, line 68
def mapping?;  false; end
scalar?() click to toggle source 
 
               # File psych/lib/psych/nodes/node.rb, line 69
def scalar?;   false; end
sequence?() click to toggle source 
 
               # File psych/lib/psych/nodes/node.rb, line 70
def sequence?; false; end
stream?() click to toggle source 
 
               # File psych/lib/psych/nodes/node.rb, line 71
def stream?;   false; end
to_ruby() click to toggle source

Convert this node to Ruby.

See also Psych::Visitors::ToRuby

 
               # File psych/lib/psych/nodes/node.rb, line 48
def to_ruby
  Visitors::ToRuby.create.accept(self)
end
Also aliased as: transform
to_yaml(io = nil, options = {}) click to toggle source
Alias for: yaml
transform() click to toggle source
Alias for: to_ruby
yaml(io = nil, options = {}) click to toggle source

Convert this node to YAML.

See also Psych::Visitors::Emitter

 
               # File psych/lib/psych/nodes/node.rb, line 57
def yaml io = nil, options = {}
  real_io = io || StringIO.new(''.encode('utf-8'))

  Visitors::Emitter.new(real_io, options).accept self
  return real_io.string unless io
  io
end
Also aliased as: to_yaml