Sha256: 4dfd01fd42c3821533043dba57fa51fe72cd582f23a4910d520a48e69cc1ef53
Contents?: true
Size: 786 Bytes
Versions: 4
Compression:
Stored size: 786 Bytes
Contents
# frozen_string_literal: true
class Shoes
class Color
class HexConverter
def initialize(hex)
@hex = validate(hex) || raise(ArgumentError, "Bad hex color: #{hex}")
@red, @green, @blue = hex_to_rgb(pad_if_necessary(@hex))
end
def to_rgb
[@red, @green, @blue]
end
private
def hex_to_rgb(hex)
hex.chars.each_slice(2).map { |a| a.join.to_i(16) }
end
def pad_if_necessary(hex)
return hex unless hex.length == 3
hex.chars.map { |c| "#{c}#{c}" }.join
end
# Returns a 3- or 6-char hex string for valid input, or nil
# for invalid input.
def validate(hex)
match = /^#?(([0-9a-f]{3}){1,2})$/i.match(hex)
match && match[1]
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems