class Cucumber::Core::Gherkin::AstBuilder::Builder

def children
  []
end

def description
  attributes[:description] ||= ""
end

def handle_comments(comments)
  remaining_comments = []
  comments.each do |comment|
    if line > comment.location.line
      @comments << comment
    else
      remaining_comments << comment
    end
  end
  children.each { |child| remaining_comments = child.handle_comments(remaining_comments) }
  remaining_comments
end

def initialize(file, attributes)
  @file = file
  @attributes = rubify_keys(attributes.dup)
  @comments = []
  @line = @attributes[:location][:line]
end

def keyword
  attributes[:keyword]
end

def location
  Ast::Location.new(file, attributes[:location][:line])
end

def name
  attributes[:name]
end

def rubify_keys(hash)
  hash.keys.each do |key|
    if key.downcase != key
      hash[underscore(key).to_sym] = hash.delete(key)
    end
  end
  return hash
end

def tags
  attributes[:tags].map do |tag|
    Ast::Tag.new(
      Ast::Location.new(file, tag[:location][:line]),
      tag[:name])
  end
end

def underscore(string)
  string.to_s.gsub(/::/, '/').
    gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
    gsub(/([a-z\d])([A-Z])/,'\1_\2').
    tr("-", "_").
    downcase
end