Module: Japanese::VerbIdentifier

Included in:
JayVerb
Defined in:
lib/japanese/verb_identifier.rb

Constant Summary collapse

CONSONANT_VERBS =

List of consonant stem verbs ending in -iru

%w(脂ぎる びびる 契る 散る どじる 愚痴る 入る 走る 穿る 迸る
熱る いびる 弄る 炒る 要る 限る 齧る 呪る 切る 霧る 切る
きしる 軋る 抉る 参る 混じる　交じる 滅入る 見縊る 漲る
毟る 捩じる 握る 罵る 陥る 思い入る 思い切る せびる 知る
謗る 滾る 魂消る 迸る とちる 野次る 過る 横切る 嘲る 駄弁る
彫る 選る 啁る 耽る 伏せる 侍る 減る 撚る 翻る 火照る 帰る
返る 反る 還る 孵る 陰る 駆ける 蹴る くねる 覆る 練る のめる
滑る 阿る 競る 挵る 喋る 茂る 湿気る そべる 滑る 猛る 照る
抓める 抓る うねる 蘇る 甦る 放る 括る 抉る 捥る 捩る 詰る
)
RU_IRREGULAR_MAPPING = 
{
  "する": "v-suru",
  "来る": "v-kuru",
  "有る": "v-aru",
  "ある": "v-aru",
  "居らっしゃる": "v5r-i",
  "いらっしゃる": "v5r-i"
}
AMBIGUITY_IF_HIRAGANA_ONLY = 
%w(いる きる える へる かえる ねる しめる)
E_HIRAGANA = 
%w(え け せ て へ ね め れ げ ぜ で べ ぺ)
I_HIRAGANA = 
%w(い き し ち ひ に み り ぎ じ ぢぃ び ぴ)

Instance Method Summary collapse

Instance Method Details

#ambiguous? ⇒ Boolean

Returns true if the class of the verb cannot be determined without more information

Returns:

  • (Boolean) 


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# File 'lib/japanese/verb_identifier.rb', line 91

def ambiguous?
  self.kanji == self.hiragana && self.kanji.in?(AMBIGUITY_IF_HIRAGANA_ONLY) ? true : false
end

#ends_in_iru_eru? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/japanese/verb_identifier.rb', line 95

def ends_in_iru_eru?
  self.hiragana[-2].in?(E_HIRAGANA) || self.hiragana[-2].in?(I_HIRAGANA) ? true : false
end

#ends_in_ru? ⇒ Boolean

Include into the word class and use on word instances

Returns:

  • (Boolean) 


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# File 'lib/japanese/verb_identifier.rb', line 82

def ends_in_ru?
  unless self.kanji.blank?
    self.kanji[-1] == "る" ? true : false
  else 
    self.hiragana[-1] == "る" ? true : false
  end
end

#irregular? ⇒ Boolean

Verifies the verb is not a “ru” irregular

Returns:

  • (Boolean) 


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# File 'lib/japanese/verb_identifier.rb', line 106

def irregular?
  irregulars = RU_IRREGULAR_MAPPING.stringify_keys!
  ireg = irregulars.keys
  self.kanji.in?(ireg) ? true : false
end

#is_consonant_verb? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/japanese/verb_identifier.rb', line 99

def is_consonant_verb?
  if self.ends_in_iru_eru? && !ambiguous?
    self.kanji.in?(CONSONANT_VERBS) ? true : false
  end
end

#resolve_ru_verb_class ⇒ Object 



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# File 'lib/japanese/verb_identifier.rb', line 33

def resolve_ru_verb_class
  return nil if ambiguous?
  unless irregular?
    if ends_in_iru_eru? && is_consonant_verb?
      self.part_of_speech = "v5r"
    elsif ends_in_ru? && !ends_in_iru_eru?
      self.part_of_speech = "v5r"
    elsif ends_in_iru_eru? && !is_consonant_verb?
      self.part_of_speech = "v1"
    end
  else
    RU_IRREGULAR_MAPPING.stringify_keys!
    RU_IRREGULAR_MAPPING.each do |k, v|
      self.part_of_speech = v if self.kanji == k
    end
  end
end

#resolve_verb_class ⇒ Object 



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# File 'lib/japanese/verb_identifier.rb', line 51

def resolve_verb_class
  # Check if the word is a special case of "k" or "u" verb
  if self.kanji == "行く"
    self.part_of_speech = "v5k-s"
  elsif self.kanji == "問う"
    self.part_of_speech = "v5u-s"
  else
    case self.kanji[-1]
      when "ぶ"
        self.part_of_speech = "v5b"
      when "ぐ"
        self.part_of_speech = "v5g"
      when "く"
        self.part_of_speech = "v5k" unless self.kanji == "行く"
      when "む"
        self.part_of_speech = "v5m"
      when "ぬ"
        self.part_of_speech = "v5n"
      when "す"
        self.part_of_speech = "v5s"
      when "る"
        resolve_ru_verb_class
      when "つ"
        self.part_of_speech = "v5t"
      when "う"
        self.part_of_speech = "v5u" unless self.kanji == "問う"
    end
  end
end