Contents

module Vedeu

  # Represents an invisible escape character sequence.
  #
  class Escape

    # @!attribute [r] value
    # @return [String]
    attr_reader :value

    # Returns a new instance of Vedeu::Escape.
    #
    # @param attributes [String]
    # @option attributes position [Vedeu::Geometry::Position|Array<Fixnum>]
    # @option attributes value [String]
    # @return [Vedeu::Escape]
    def initialize(attributes = {})
      defaults.merge!(attributes).each do |key, value|
        instance_variable_set("@#{key}", value)
      end
    end

    # @return [NilClass]
    def null
      nil
    end
    alias_method :background, :null
    alias_method :colour,     :null
    alias_method :foreground, :null
    alias_method :style,      :null

    # An object is equal when its values are the same.
    #
    # @param other [Vedeu::Views::Char]
    # @return [Boolean]
    def eql?(other)
      self.class == other.class && value == other.value
    end
    alias_method :==, :eql?

    # @return [String]
    def position
      Vedeu::Geometry::Position.coerce(@position)
    end

    # @return [String]
    def to_s
      "#{position}#{value}"
    end
    alias_method :to_str, :to_s

    private

    # @return [Hash]
    def defaults
      {
        position: [1, 1],
        value:    '',
      }
    end

  end # Escape

end # Vedeu

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
vedeu-0.6.7	lib/vedeu/models/escape.rb
vedeu-0.6.6	lib/vedeu/models/escape.rb
vedeu-0.6.5	lib/vedeu/models/escape.rb