Class: Foruiman::ANSI::Styles

Inherits:
Object
  • Object
show all
Defined in:
lib/foruiman/ansi.rb

Overview

A bounded style snapshot makes each retained row independently renderable.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Styles

Returns a new instance of Styles.



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# File 'lib/foruiman/ansi.rb', line 9

def initialize
  @values = {}
end

Instance Method Details

#apply(sequence) ⇒ Object 



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# File 'lib/foruiman/ansi.rb', line 13

def apply(sequence)
  values = sequence.delete_prefix("\e[").delete_suffix("m").split(";")
  values = ["0"] if values.empty?
  until values.empty?
    value = values.shift
    code = value.to_i
    case code
    when 0 then @values.clear
    when 1, 2 then @values[:intensity] = value
    when 3 then @values[:italic] = value
    when 4, 21 then @values[:underline] = value
    when 5, 6 then @values[:blink] = value
    when 7 then @values[:inverse] = value
    when 8 then @values[:conceal] = value
    when 9 then @values[:strike] = value
    when 22 then @values.delete(:intensity)
    when 23 then @values.delete(:italic)
    when 24 then @values.delete(:underline)
    when 25 then @values.delete(:blink)
    when 27 then @values.delete(:inverse)
    when 28 then @values.delete(:conceal)
    when 29 then @values.delete(:strike)
    when 30..37, 90..97 then @values[:foreground] = value
    when 40..47, 100..107 then @values[:background] = value
    when 38, 48 then color(code, value, values)
    when 39 then @values.delete(:foreground)
    when 49 then @values.delete(:background)
    end
  end
end

#prefix ⇒ Object 



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# File 'lib/foruiman/ansi.rb', line 44

def prefix
  @values.empty? ? "" : "\e[#{@values.values.join(';')}m"
end