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# frozen_string_literal: true
require_relative '../errors/must_override_error'
require_relative '../modules/class_name_to_symbol'
module LittleWeasel
module Filters
# This module provides methods/functionality for filtering dictionary words.
class WordFilter
include Modules::ClassNameToSymbol
attr_reader :filter_on
def initialize
filter_on!
end
class << self
# Should return true if this word matches the filter criteria; false,
# otherwise. This class method is unlike the instance method in that it
# does not consider whether or not this filter is "on" or "off"; it
# simply returns true or false based on whether or not the word matches
# the filter.
def filter_match?(_word)
raise Errors::MustOverrideError
end
end
def filter_on=(value)
raise ArgumentError, "Argument value is not true or false: #{value.class}" \
unless [true, false].include? value
@filter_on = value
end
def filter_match?(word)
return false if filter_off?
self.class.filter_match? word
end
def filter_on!
self.filter_on = true
end
def filter_off!
self.filter_on = false
end
def filter_on?
filter_on
end
def filter_off?
!filter_on?
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems