Class: Langue::Japanese::Structurer

Inherits:
Object
  • Object
show all
Includes:
Logging
Defined in:
lib/langue/japanese/structurer.rb

Constant Summary collapse

WORD_CLASSES = 
%w(
  period
  verb
  adjective
  adjective_noun
  pronoun
  noun
).map do |word_name|
  require "langue/japanese/words/#{word_name}"
  Langue::Japanese.const_get(word_name.camelize)
end

Instance Method Summary collapse

Methods included from Logging

#null_logger

Constructor Details

#initialize(options = {}) ⇒ Structurer

Returns a new instance of Structurer.



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# File 'lib/langue/japanese/structurer.rb', line 25

def initialize(options = {})
  @logger = options[:logger] || null_logger
end

Instance Method Details

#structure(morphemes) ⇒ Object 



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# File 'lib/langue/japanese/structurer.rb', line 29

def structure(morphemes)
  sentences = []
  words = []
  arrived = false
  index = 0
  length = morphemes.length

  while index < length
    word_class = nil
    size = 0

    WORD_CLASSES.each do |wc|
      s = wc.take(morphemes, index)

      if s > 0
        word_class = wc
        size = s
        break
      end
    end

    if word_class.nil?
      word_class = Word
      size = 1
    end

    word = word_class.new(morphemes[index, size])

    if arrived && !word.instance_of?(Period)
      sentences << Sentence.new(words)
      words.clear
      arrived = false
    elsif word.instance_of?(Period)
      arrived = true
    end

    words << word
    index += size
  end

  sentences << Sentence.new(words) unless words.empty?
  Text.new(sentences)
end