teratail
回答率
85.48%
質問するログイン新規登録
トップRubyに関する質問[Ruby] 複数形を単数系に変換

編集履歴

回答編集履歴

11

修正

2017/07/11 13:36

投稿

退会済みユーザー
test CHANGED
File without changes

10

修正

2017/07/11 13:36

投稿

退会済みユーザー
test CHANGED
@@ -128,7 +128,7 @@
128
128
 
129
129
  'opuses' => 'opus',
130
130
 
131
- 'penises' => 'penis',
131
+ 'penises' => 'penis',
132
132
 
133
133
  'equipment' => 'equipment',
134
134
 

9

修正

2017/07/11 13:34

投稿

退会済みユーザー
test CHANGED
@@ -198,7 +198,7 @@
198
198
 
199
199
  '(^analy)ses$' => '\1sis',
200
200
 
201
- '(analy|ba|diagno|parenthe|progno|synop|the)ses$' => '\1sis',
201
+ '(analy|ba|diagno|parenthe|progno|synop|the)ses$' => '\1sis',
202
202
 
203
203
  '([ti])a$' => '\1um',
204
204
 

8

修正

2017/07/11 13:29

投稿

退会済みユーザー
test CHANGED
@@ -60,7 +60,7 @@
60
60
 
61
61
  def singularize
62
62
 
63
- P2S.new.singularByPlural(self)
63
+ P2S.singular_by_plural(self)
64
64
 
65
65
  end
66
66
 
@@ -74,7 +74,7 @@
74
74
 
75
75
 
76
76
 
77
- @@irregular_rules = {
77
+ @irregular_rules = {
78
78
 
79
79
  'men' => 'man',
80
80
 
@@ -156,7 +156,7 @@
156
156
 
157
157
 
158
158
 
159
- @@singular_rules = {
159
+ @singular_rules = {
160
160
 
161
161
  '(quiz)zes$' => '\1',
162
162
 
@@ -210,19 +210,15 @@
210
210
 
211
211
 
212
212
 
213
- def singularByPlural(prural)
213
+ def self.singular_by_plural(prural)
214
-
214
+
215
- return @@irregular_rules[prural] if @@irregular_rules.key?(prural)
215
+ return @irregular_rules[prural] if @irregular_rules.key?(prural)
216
-
217
-
218
-
216
+
217
+
218
+
219
- @@singular_rules.each do |key, value|
219
+ @singular_rules.each do |key, value|
220
-
221
- if prural =~ /#{key}/
220
+
222
-
223
- return prural.sub(/#{key}/, value)
221
+ return prural.sub(/#{key}/, value) if prural =~ /#{key}/
224
-
225
- end
226
222
 
227
223
  end
228
224
 

7

修正

2017/07/11 13:27

投稿

退会済みユーザー
test CHANGED
@@ -228,7 +228,7 @@
228
228
 
229
229
 
230
230
 
231
- 'Not found'
231
+ nil
232
232
 
233
233
  end
234
234
 

6

修正

2017/07/11 13:15

投稿

退会済みユーザー
test CHANGED
@@ -236,7 +236,7 @@
236
236
 
237
237
 
238
238
 
239
- puts 'computer'.singularize # => computer
239
+ puts 'computers'.singularize # => computer
240
240
 
241
241
 
242
242
 

5

修正

2017/07/11 11:24

投稿

退会済みユーザー
test CHANGED
@@ -236,7 +236,7 @@
236
236
 
237
237
 
238
238
 
239
- puts 'progress'.singularize # => computer
239
+ puts 'computer'.singularize # => computer
240
240
 
241
241
 
242
242
 

4

修正

2017/07/11 11:23

投稿

退会済みユーザー
test CHANGED
@@ -78,75 +78,75 @@
78
78
 
79
79
  'men' => 'man',
80
80
 
81
- 'seamen' => 'seaman',
82
-
83
- 'snowmen' => 'snowman',
84
-
85
- 'women' => 'woman',
86
-
87
- 'people' => 'person',
88
-
89
- 'children' => 'child',
90
-
91
- 'sexes' => 'sex',
92
-
93
- 'moves' => 'move',
94
-
95
- 'databases' => 'database',
96
-
97
- 'feet' => 'foot',
98
-
99
- 'cruces' => 'crux',
100
-
101
- 'oases' => 'oasis',
102
-
103
- 'phenomena' => 'phenomenon',
104
-
105
- 'teeth' => 'tooth',
106
-
107
- 'geese' => 'goose',
108
-
109
- 'atlases' => 'atlas',
110
-
111
- 'corpuses' => 'corpus',
112
-
113
- 'genies' => 'genie',
114
-
115
- 'genera' => 'genus',
116
-
117
- 'graffiti' => 'graffito',
118
-
119
- 'loaves' => 'loaf',
120
-
121
- 'mythoi' => 'mythos',
122
-
123
- 'niches' => 'niche',
124
-
125
- 'numina' => 'numen',
126
-
127
- 'octopuses' => 'octopus',
128
-
129
- 'opuses' => 'opus',
130
-
131
- 'penises' => 'penis',
132
-
133
- 'equipment' => 'equipment',
134
-
135
- 'information' => 'information',
136
-
137
- 'rice' => 'rice',
138
-
139
- 'money' => 'money',
140
-
141
- 'species' => 'species',
142
-
143
- 'series' => 'series',
144
-
145
- 'fish' => 'fish',
146
-
147
- 'sheep' => 'sheep',
148
-
149
- 'swiss' => 'swiss',
81
+ 'seamen' => 'seaman',
82
+
83
+ 'snowmen' => 'snowman',
84
+
85
+ 'women' => 'woman',
86
+
87
+ 'people' => 'person',
88
+
89
+ 'children' => 'child',
90
+
91
+ 'sexes' => 'sex',
92
+
93
+ 'moves' => 'move',
94
+
95
+ 'databases' => 'database',
96
+
97
+ 'feet' => 'foot',
98
+
99
+ 'cruces' => 'crux',
100
+
101
+ 'oases' => 'oasis',
102
+
103
+ 'phenomena' => 'phenomenon',
104
+
105
+ 'teeth' => 'tooth',
106
+
107
+ 'geese' => 'goose',
108
+
109
+ 'atlases' => 'atlas',
110
+
111
+ 'corpuses' => 'corpus',
112
+
113
+ 'genies' => 'genie',
114
+
115
+ 'genera' => 'genus',
116
+
117
+ 'graffiti' => 'graffito',
118
+
119
+ 'loaves' => 'loaf',
120
+
121
+ 'mythoi' => 'mythos',
122
+
123
+ 'niches' => 'niche',
124
+
125
+ 'numina' => 'numen',
126
+
127
+ 'octopuses' => 'octopus',
128
+
129
+ 'opuses' => 'opus',
130
+
131
+ 'penises' => 'penis',
132
+
133
+ 'equipment' => 'equipment',
134
+
135
+ 'information' => 'information',
136
+
137
+ 'rice' => 'rice',
138
+
139
+ 'money' => 'money',
140
+
141
+ 'species' => 'species',
142
+
143
+ 'series' => 'series',
144
+
145
+ 'fish' => 'fish',
146
+
147
+ 'sheep' => 'sheep',
148
+
149
+ 'swiss' => 'swiss',
150
150
 
151
151
  'progress' => 'progress',
152
152
 
@@ -158,53 +158,53 @@
158
158
 
159
159
  @@singular_rules = {
160
160
 
161
- '(quiz)zes$' => '\1',
161
+ '(quiz)zes$' => '\1',
162
-
162
+
163
- '(matr)ices$' => '\1ix',
163
+ '(matr)ices$' => '\1ix',
164
-
164
+
165
- '(vert|ind)ices$' => '\1ex',
165
+ '(vert|ind)ices$' => '\1ex',
166
-
166
+
167
- '^(ox)en' => '\1',
167
+ '^(ox)en' => '\1',
168
-
168
+
169
- '(alias|status)es$' => '\1',
169
+ '(alias|status)es$' => '\1',
170
-
170
+
171
- '(octop|vir)i$' => '\1us',
171
+ '(octop|vir)i$' => '\1us',
172
-
172
+
173
- '(cris|ax|test)es$' => '\1is',
173
+ '(cris|ax|test)es$' => '\1is',
174
-
174
+
175
- '(shoe)s$' => '\1',
175
+ '(shoe)s$' => '\1',
176
-
176
+
177
- '(o)es$' => '\1',
177
+ '(o)es$' => '\1',
178
-
178
+
179
- '(bus)es$' => '\1',
179
+ '(bus)es$' => '\1',
180
-
180
+
181
- '([m|l])ice$' => '\1ouse',
181
+ '([m|l])ice$' => '\1ouse',
182
-
182
+
183
- '(x|ch|ss|sh)es$' => '\1',
183
+ '(x|ch|ss|sh)es$' => '\1',
184
-
184
+
185
- 'movies$' => 'movie',
185
+ 'movies$' => 'movie',
186
-
186
+
187
- 'series$' => 'series',
187
+ 'series$' => 'series',
188
-
188
+
189
- '([^aeiouy]|qu)ies$' => '\1y',
189
+ '([^aeiouy]|qu)ies$' => '\1y',
190
-
190
+
191
- '([lr])ves$' => '\1f',
191
+ '([lr])ves$' => '\1f',
192
-
192
+
193
- '(tive)s$' => '\1',
193
+ '(tive)s$' => '\1',
194
-
194
+
195
- '(hive)s$' => '\1',
195
+ '(hive)s$' => '\1',
196
-
196
+
197
- '([^f])ves$' => '\1fe',
197
+ '([^f])ves$' => '\1fe',
198
-
198
+
199
- '(^analy)ses$' => '\1sis',
199
+ '(^analy)ses$' => '\1sis',
200
-
200
+
201
- '(analy|ba|diagno|parenthe|progno|synop|the)ses$' => '\1sis',
201
+ '(analy|ba|diagno|parenthe|progno|synop|the)ses$' => '\1sis',
202
-
202
+
203
- '([ti])a$' => '\1um',
203
+ '([ti])a$' => '\1um',
204
-
204
+
205
- '(n)ews$' => '\1ews',
205
+ '(n)ews$' => '\1ews',
206
-
206
+
207
- '(.)s$' => '\1'
207
+ '(.)s$' => '\1'
208
208
 
209
209
  }.freeze
210
210
 
@@ -236,7 +236,9 @@
236
236
 
237
237
 
238
238
 
239
- puts 'computers'.singularize # => computer
239
+ puts 'progress'.singularize # => computer
240
+
241
+
240
242
 
241
243
  ```
242
244
 

3

修正

2017/07/11 11:23

投稿

退会済みユーザー
test CHANGED
@@ -146,7 +146,11 @@
146
146
 
147
147
  'sheep' => 'sheep',
148
148
 
149
- 'swiss' => 'swiss'
149
+ 'swiss' => 'swiss',
150
+
151
+ 'progress' => 'progress',
152
+
153
+ 'nonsense' => 'nonsense'
150
154
 
151
155
  }.freeze
152
156
 
@@ -232,7 +236,7 @@
232
236
 
233
237
 
234
238
 
235
- p 'computers'.singularize # => "computer"
239
+ puts 'computers'.singularize # => computer
236
240
 
237
241
  ```
238
242
 
@@ -241,3 +245,7 @@
241
245
  [【まとめ】インスタンス変数、クラス変数、クラスインスタンス変数](http://qiita.com/mogulla3/items/cd4d6e188c34c6819709)
242
246
 
243
247
  [Rubyで逆ポーランド記法の計算機と変換器を作った](http://qiita.com/siman/items/d72854c4c4aaaf452868)
248
+
249
+
250
+
251
+ progressとnonsenseは追加しました。

2

修正

2017/07/11 11:10

投稿

退会済みユーザー
test CHANGED
@@ -46,4 +46,198 @@
46
46
 
47
47
 
48
48
 
49
-
49
+ [PHP 複数形を単数形に変換 - サンプルコード](http://pb-times.jp/P_527b395742f17)
50
+
51
+ こちらのページに書いてあるコードをRubyに書き換えてみました。
52
+
53
+ ```Ruby
54
+
55
+ # encoding: utf-8
56
+
57
+
58
+
59
+ class String
60
+
61
+ def singularize
62
+
63
+ P2S.new.singularByPlural(self)
64
+
65
+ end
66
+
67
+ end
68
+
69
+
70
+
71
+ class P2S
72
+
73
+ attr_reader :word
74
+
75
+
76
+
77
+ @@irregular_rules = {
78
+
79
+ 'men' => 'man',
80
+
81
+ 'seamen' => 'seaman',
82
+
83
+ 'snowmen' => 'snowman',
84
+
85
+ 'women' => 'woman',
86
+
87
+ 'people' => 'person',
88
+
89
+ 'children' => 'child',
90
+
91
+ 'sexes' => 'sex',
92
+
93
+ 'moves' => 'move',
94
+
95
+ 'databases' => 'database',
96
+
97
+ 'feet' => 'foot',
98
+
99
+ 'cruces' => 'crux',
100
+
101
+ 'oases' => 'oasis',
102
+
103
+ 'phenomena' => 'phenomenon',
104
+
105
+ 'teeth' => 'tooth',
106
+
107
+ 'geese' => 'goose',
108
+
109
+ 'atlases' => 'atlas',
110
+
111
+ 'corpuses' => 'corpus',
112
+
113
+ 'genies' => 'genie',
114
+
115
+ 'genera' => 'genus',
116
+
117
+ 'graffiti' => 'graffito',
118
+
119
+ 'loaves' => 'loaf',
120
+
121
+ 'mythoi' => 'mythos',
122
+
123
+ 'niches' => 'niche',
124
+
125
+ 'numina' => 'numen',
126
+
127
+ 'octopuses' => 'octopus',
128
+
129
+ 'opuses' => 'opus',
130
+
131
+ 'penises' => 'penis',
132
+
133
+ 'equipment' => 'equipment',
134
+
135
+ 'information' => 'information',
136
+
137
+ 'rice' => 'rice',
138
+
139
+ 'money' => 'money',
140
+
141
+ 'species' => 'species',
142
+
143
+ 'series' => 'series',
144
+
145
+ 'fish' => 'fish',
146
+
147
+ 'sheep' => 'sheep',
148
+
149
+ 'swiss' => 'swiss'
150
+
151
+ }.freeze
152
+
153
+
154
+
155
+ @@singular_rules = {
156
+
157
+ '(quiz)zes$' => '\1',
158
+
159
+ '(matr)ices$' => '\1ix',
160
+
161
+ '(vert|ind)ices$' => '\1ex',
162
+
163
+ '^(ox)en' => '\1',
164
+
165
+ '(alias|status)es$' => '\1',
166
+
167
+ '(octop|vir)i$' => '\1us',
168
+
169
+ '(cris|ax|test)es$' => '\1is',
170
+
171
+ '(shoe)s$' => '\1',
172
+
173
+ '(o)es$' => '\1',
174
+
175
+ '(bus)es$' => '\1',
176
+
177
+ '([m|l])ice$' => '\1ouse',
178
+
179
+ '(x|ch|ss|sh)es$' => '\1',
180
+
181
+ 'movies$' => 'movie',
182
+
183
+ 'series$' => 'series',
184
+
185
+ '([^aeiouy]|qu)ies$' => '\1y',
186
+
187
+ '([lr])ves$' => '\1f',
188
+
189
+ '(tive)s$' => '\1',
190
+
191
+ '(hive)s$' => '\1',
192
+
193
+ '([^f])ves$' => '\1fe',
194
+
195
+ '(^analy)ses$' => '\1sis',
196
+
197
+ '(analy|ba|diagno|parenthe|progno|synop|the)ses$' => '\1sis',
198
+
199
+ '([ti])a$' => '\1um',
200
+
201
+ '(n)ews$' => '\1ews',
202
+
203
+ '(.)s$' => '\1'
204
+
205
+ }.freeze
206
+
207
+
208
+
209
+ def singularByPlural(prural)
210
+
211
+ return @@irregular_rules[prural] if @@irregular_rules.key?(prural)
212
+
213
+
214
+
215
+ @@singular_rules.each do |key, value|
216
+
217
+ if prural =~ /#{key}/
218
+
219
+ return prural.sub(/#{key}/, value)
220
+
221
+ end
222
+
223
+ end
224
+
225
+
226
+
227
+ 'Not found'
228
+
229
+ end
230
+
231
+ end
232
+
233
+
234
+
235
+ p 'computers'.singularize # => "computer"
236
+
237
+ ```
238
+
239
+ 参考にしたページ
240
+
241
+ [【まとめ】インスタンス変数、クラス変数、クラスインスタンス変数](http://qiita.com/mogulla3/items/cd4d6e188c34c6819709)
242
+
243
+ [Rubyで逆ポーランド記法の計算機と変換器を作った](http://qiita.com/siman/items/d72854c4c4aaaf452868)

1

修正

2017/07/11 11:01

投稿

退会済みユーザー
test CHANGED
@@ -37,3 +37,13 @@
37
37
  どうかわかりませんがRuby単体には存在しない
38
38
 
39
39
  機能なのではないかなぁと私は予想しています。
40
+
41
+
42
+
43
+ 私のRubyのバージョンなど
44
+
45
+ Ruby 2.2.6 Windows32bit版
46
+
47
+
48
+
49
+