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Showing content from https://ruby-syntax-tree.github.io/syntax_tree/SyntaxTree/CHAR.html below:

class SyntaxTree::CHAR - RDoc Documentation

1. SyntaxTree::
2. CHAR

CHAR irepresents a single codepoint in the script encoding.

?a

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

String

the value of the character literal

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

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

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

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)
  { value: value, location: location, comments: comments }
end

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

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