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module Verbs
class Verb
attr_reader :infinitive, :preterite, :past_participle
def initialize(infinitive, options = {}, &blk)
@infinitive = infinitive
@forms = {}
if block_given?
yield self
else
@preterite = options[:preterite]
@past_participle = options[:past_participle]
end
end
def form(word, options = {})
raise ArgumentError, 'Irregular verb specifications must identify tense and must identify either derivative, mood, or person and plurality' unless options[:tense] and (options[:derivative] or options[:mood] or (options[:person] and options[:plurality]))
tense = options[:tense]
@forms[:present] ||= {}
@forms[:past] ||= {}
if derivative = options[:derivative]
@forms[tense][derivative] = word
elsif mood = options[:mood]
@forms[tense][mood] = word
elsif person = options[:person]
@forms[tense][person] ||= {}
@forms[tense][person][options[:plurality]] = word
end
end
def [](options = {})
tense, person, plurality, derivative, mood = options[:tense], options[:person], options[:plurality], options[:derivative], options[:mood]
if tense and person and plurality and mood
@forms[tense].try(:[], mood) || @forms[tense].try(:[], person).try(:[], plurality)
elsif tense and derivative
@forms[tense].try(:[], derivative)
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems