class SyntaxTree::CHAR

can use control characters with this as well, as in ?C-a.
In the example above, the CHAR node represents the string literal “a”. You
?a
CHAR irepresents a single codepoint in the script encoding.

def ===(other) 

def ===(other)
  other.is_a?(CHAR) && value === other.value
end

def accept(visitor) 

def accept(visitor)
  visitor.visit_CHAR(self)
end

def child_nodes 

def child_nodes
  []
end

def copy(value: nil, location: nil) 

def copy(value: nil, location: nil)
  node =
    CHAR.new(
      value: value || self.value,
      location: location || self.location
    )
  node.comments.concat(comments.map(&:copy))
  node
end

def deconstruct_keys(_keys) 

def deconstruct_keys(_keys)
  { value: value, location: location, comments: comments }
end

def format(q) 

def format(q)
  if value.length != 2
    q.text(value)
  else
    q.text(q.quote)
    q.text(value[1] == "\"" ? "\\\"" : value[1])
    q.text(q.quote)
  end
end

def initialize(value:, location:) 

def initialize(value:, location:)
  @value = value
  @location = location
  @comments = []
end