Te form

src/verb.rb

@@ -1,5 +1,13 @@
-GUYS = {
+U_VOWEL_CHANGES = {
+  "る" => { "a" => "ら", "i" => "り", "u" => "る", "e" => "れ", "o" => "ろ" },
+  "う" => { "a" => "あ", "i" => "い", "u" => "う", "e" => "え", "o" => "お" },
+  "つ" => { "a" => "た", "i" => "ち", "u" => "つ", "e" => "て", "o" => "と" },
+  "す" => { "a" => "さ", "i" => "し", "u" => "す", "e" => "せ", "o" => "そ" },
+  "く" => { "a" => "か", "i" => "き", "u" => "く", "e" => "け", "o" => "こ" },
+  "ぐ" => { "a" => "が", "i" => "ぎ", "u" => "ぐ", "e" => "げ", "o" => "ご" },
+  "ぶ" => { "a" => "ば", "i" => "び", "u" => "ぶ", "e" => "べ", "o" => "ぼ" },
   "む" => { "a" => "ま", "i" => "み", "u" => "む", "e" => "め", "o" => "も" },
+  "ぬ" => { "a" => "な", "i" => "に", "u" => "ぬ", "e" => "ね", "o" => "の" },
 }
 
 class KanaKanji
@@ -17,8 +25,9 @@ class KanaKanji
     self.class.new kana + other, kanji + other
   end
 
-  def last_character
-    GUYS[kana[-1]]
+  def last_character(new_form=nil)
+    return kana[-1] unless new_form
+    U_VOWEL_CHANGES[kana[-1]][new_form]
   end
 
   def all_but_last_character
@@ -36,8 +45,8 @@ class Verb
     @definition_english = definition_english
   end
 
-  def last_character
-    dict.last_character
+  def last_character(new_form=nil)
+    dict.last_character(new_form)
   end
 
   def all_but_last_character
@@ -57,40 +66,66 @@ class IchidanVerb < Verb
   def long_form_present_positive
     all_but_last_character + "ます"
   end
+
+  def te
+    all_but_last_character + "て"
+  end
 end
 
 class GodanVerb < Verb
   def long_form_present_positive
-    all_but_last_character + last_character["i"] + "ます"
+    all_but_last_character + last_character("i") + "ます"
+  end
+
+  def te
+    p last_character
+    case last_character
+    when "う"
+      all_but_last_character + "って"
+    when "る"
+      all_but_last_character + "って"
+    when "つ"
+      all_but_last_character + "って"
+    when "す"
+      all_but_last_character + "して"
+    when "く"
+      all_but_last_character + "いて"
+    when "ぐ"
+      all_but_last_character + "いで"
+    when "ぶ"
+      all_but_last_character + "んで"
+    when "む"
+      all_but_last_character + "んで"
+    when "ぬ"
+      all_but_last_character + "んで"
+    end
   end
 end
 
 class SuruVerb < Verb
+  def prefix
+    dict[..-3]
+  end
+
   def long_form_present_positive
-    dict[..-3] + "します"
+    prefix + "します"
+  end
+
+  def te
+    prefix + "して"
   end
 end
 
 見る = IchidanVerb.new("見る", "みる", "to look")
-p 見る.dictionary.kanji
-p 見る.dictionary.kana
-p 見る.long_form_present_positive.kanji
-p 見る.long_form_present_positive.kana
-
 飲む = GodanVerb.new("飲む", "のむ", "to drink")
-p 飲む.dictionary.kanji
-p 飲む.dictionary.kana
-p 飲む.long_form_present_positive.kanji
-p 飲む.long_form_present_positive.kana
-
 する = SuruVerb.new("する", "する", "to do")
-p する.dictionary.kanji
-p する.dictionary.kana
-p する.long_form_present_positive.kanji
-p する.long_form_present_positive.kana
-
 勉強する = SuruVerb.new("勉強する", "べんきょうする", "to study")
-p 勉強する.dictionary.kanji
-p 勉強する.dictionary.kana
-p 勉強する.long_form_present_positive.kanji
-p 勉強する.long_form_present_positive.kana
+verbs = [見る,飲む,する,勉強する]
+verbs.each do |verb|
+  p verb.dictionary.kanji
+  p verb.dictionary.kana
+  p verb.long_form_present_positive.kanji
+  p verb.long_form_present_positive.kana
+  p verb.te.kanji
+  p verb.te.kana
+end