class 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
()
Create a new Psych::Nodes::Node
# File ext/psych/lib/psych/nodes/node.rb, line 32 def initialize @children = [] end
Public Instance Methods
alias?
()
# File ext/psych/lib/psych/nodes/node.rb, line 67 def alias?; false; end
document?
()
# File ext/psych/lib/psych/nodes/node.rb, line 68 def document?; false; end
each
(&block)
Iterate over each node in the tree. Yields each node to block
depth first.
# File ext/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?
()
# File ext/psych/lib/psych/nodes/node.rb, line 69 def mapping?; false; end
scalar?
()
# File ext/psych/lib/psych/nodes/node.rb, line 70 def scalar?; false; end
sequence?
()
# File ext/psych/lib/psych/nodes/node.rb, line 71 def sequence?; false; end
stream?
()
# File ext/psych/lib/psych/nodes/node.rb, line 72 def stream?; false; end
to_ruby
(symbolize_names: false, freeze: false, strict_integer: false)
Convert this node to Ruby.
See also Psych::Visitors::ToRuby
# File ext/psych/lib/psych/nodes/node.rb, line 48 def to_ruby(symbolize_names: false, freeze: false, strict_integer: false) Visitors::ToRuby.create(symbolize_names: symbolize_names, freeze: freeze, strict_integer: strict_integer).accept(self) end
Also aliased as: transform
yaml
(io = nil, options = {})
Convert this node to YAML
.
See also Psych::Visitors::Emitter
# File ext/psych/lib/psych/nodes/node.rb, line 57 def yaml io = nil, options = {} require "stringio" 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