module Psych::Comments

# File lib/psych/comments/emitter.rb, line 312
def self.emit_yaml(node)
  emitter = Emitter.new
  emitter.emit(node)
  emitter.out
end

# File lib/psych/comments/parsing.rb, line 85
def self.parse(yaml, filename: nil)
  parse_stream(yaml, filename: filename) do |node|
    return node
  end
  false
end

# File lib/psych/comments/parsing.rb, line 92
def self.parse_file(filename)
  File.open filename, 'r:bom|utf-8' do |f|
    parse f, filename: filename
  end
end

# File lib/psych/comments/parsing.rb, line 98
def self.parse_stream(yaml, filename: nil, &block)
  filename ||= yaml.respond_to?(:path) ? yaml.path : "<unknown>"
  yaml = yaml.read if yaml.respond_to?(:read)
  ast = Psych.parse_stream(yaml, filename: filename)
  Analyzer.new(yaml).visit(ast)
  if block_given?
    ast.children.each do |doc|
      block.(doc)
    end
    nil
  else
    ast
  end
end