Class: SuperDiff::Csi::FourBitColor

Inherits:
Object
  • Object
show all
Defined in:
lib/super_diff/csi/four_bit_color.rb

Constant Summary collapse

VALID_TYPES = 
[:fg, :bg].freeze
VALID_CODES_BY_NAME = 
{
  black: { fg: 30, bg: 40 },
  red: { fg: 31, bg: 41 },
  green: { fg: 32, bg: 42 },
  yellow: { fg: 33, bg: 43 },
  blue: { fg: 34, bg: 44 },
  magenta: { fg: 35, bg: 45 },
  cyan: { fg: 36, bg: 46 },
  white: { fg: 37, bg: 47 },
  bright_black: { fg: 90, bg: 100 },
  bright_red: { fg: 91, bg: 101 },
  bright_green: { fg: 92, bg: 102 },
  bright_yellow: { fg: 93, bg: 103 },
  bright_blue: { fg: 94, bg: 104 },
  bright_magenta: { fg: 95, bg: 105 },
  bright_cyan: { fg: 96, bg: 106 },
  bright_white: { fg: 97, bg: 107 },
}.freeze
NAMES_BY_CODE = 
VALID_CODES_BY_NAME.reduce({}) do |hash, (key, value)|
  hash.merge(value[:fg] => key, value[:bg] => key)
end
VALID_NAMES = 
VALID_CODES_BY_NAME.keys
VALID_CODE_RANGES = 
[30..37, 40..47, 90..97, 100..107].freeze

Instance Method Summary collapse

Constructor Details

#initialize(value) ⇒ FourBitColor

Returns a new instance of FourBitColor.



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# File 'lib/super_diff/csi/four_bit_color.rb', line 29

def initialize(value)
  @name =
    if value.is_a?(Symbol)
      interpret_name!(value)
    else
      interpret_code!(value)
    end
end

Instance Method Details

#sequence_for(layer) ⇒ Object 



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# File 'lib/super_diff/csi/four_bit_color.rb', line 38

def sequence_for(layer)
  code = VALID_CODES_BY_NAME.fetch(name).fetch(layer)
  "\e[#{code}m"
end