Method: Color::RGB.from_html

Defined in:
lib/color/rgb.rb

.from_html(html_colour) ⇒ Object

Creates an RGB colour object from an HTML colour descriptor (e.g., "fed" or "#cabbed;".

Color::RGB.from_html("fed")
Color::RGB.from_html("#fed")
Color::RGB.from_html("#cabbed")
Color::RGB.from_html("cabbed")



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# File 'lib/color/rgb.rb', line 48

def from_html(html_colour)
  html_colour = html_colour.gsub(%r{[#;]}, '')
  case html_colour.size 
  when 3
    colours = html_colour.scan(%r{[0-9A-Fa-f]}).map { |el| (el * 2).to_i(16) }
  when 6
    colours = html_colour.scan(%r<[0-9A-Fa-f]{2}>).map { |el| el.to_i(16) }
  else
    raise ArgumentError
  end

  Color::RGB.new(*colours)
end