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Contents
# frozen_string_literal: true
module Vedeu
module Colours
# Validates the value as a valid colour string in HTML/CSS format,
# e.g. '#123456'.
#
# @api private
#
class Validator
include Vedeu::Common
# @param value [String]
# @return [Boolean]
def self.valid?(value)
new(value).valid?
end
# @param value [String]
# @return [Vedeu::Colours::Validator]
def initialize(value)
@value = value
end
# Returns a boolean indicating whether the colour provided is a
# valid named colour.
#
# @return [Boolean]
def named?
Vedeu.esc.valid_name?(value)
end
# Returns a boolean indicating whether the value is within the
# range of valid terminal numbered colours.
#
# @return [Boolean]
def numbered?
numeric?(value) && value >= 0 && value <= 255
end
# Returns a boolean indicated whether the colour is a valid
# HTML/CSS colour.
#
# @return [Boolean]
def rgb?
return true if value =~ /^#([A-Fa-f0-9]{6})$/
false
end
# @return [Boolean]
def valid?
background? || colour? || foreground? || rgb? || named? || numbered?
end
protected
# @!attribute [r] value
# @return [String]
attr_reader :value
private
# @return [Boolean]
def background?
value.is_a?(Vedeu::Colours::Background)
end
# @return [Boolean]
def colour?
value.is_a?(Vedeu::Colours::Colour)
end
# @return [Boolean]
def foreground?
value.is_a?(Vedeu::Colours::Foreground)
end
end # Validator
end # Colours
end # Vedeu
Version data entries
29 entries across 29 versions & 1 rubygems