1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef LATINIME_ADDITIONAL_PROXIMITY_CHARS_H
18 #define LATINIME_ADDITIONAL_PROXIMITY_CHARS_H
19 
20 #include <cstring>
21 #include <vector>
22 
23 #include "defines.h"
24 
25 namespace latinime {
26 
27 class AdditionalProximityChars {
28  private:
29     DISALLOW_IMPLICIT_CONSTRUCTORS(AdditionalProximityChars);
30     static const int LOCALE_EN_US_SIZE = 2;
31     static const int LOCALE_EN_US[LOCALE_EN_US_SIZE];
32     static const int EN_US_ADDITIONAL_A_SIZE = 4;
33     static const int EN_US_ADDITIONAL_A[];
34     static const int EN_US_ADDITIONAL_E_SIZE = 4;
35     static const int EN_US_ADDITIONAL_E[];
36     static const int EN_US_ADDITIONAL_I_SIZE = 4;
37     static const int EN_US_ADDITIONAL_I[];
38     static const int EN_US_ADDITIONAL_O_SIZE = 4;
39     static const int EN_US_ADDITIONAL_O[];
40     static const int EN_US_ADDITIONAL_U_SIZE = 4;
41     static const int EN_US_ADDITIONAL_U[];
42 
isEnLocale(const std::vector<int> * locale)43     AK_FORCE_INLINE static bool isEnLocale(const std::vector<int> *locale) {
44         const int NCHARS = NELEMS(LOCALE_EN_US);
45         if (locale->size() < NCHARS) {
46             return false;
47         }
48         for (int i = 0; i < NCHARS; ++i) {
49             if ((*locale)[i] != LOCALE_EN_US[i]) {
50                 return false;
51             }
52         }
53         return true;
54     }
55 
56  public:
getAdditionalCharsSize(const std::vector<int> * locale,const int c)57     static int getAdditionalCharsSize(const std::vector<int> *locale, const int c) {
58         if (!isEnLocale(locale)) {
59             return 0;
60         }
61         switch (c) {
62         case 'a':
63             return EN_US_ADDITIONAL_A_SIZE;
64         case 'e':
65             return EN_US_ADDITIONAL_E_SIZE;
66         case 'i':
67             return EN_US_ADDITIONAL_I_SIZE;
68         case 'o':
69             return EN_US_ADDITIONAL_O_SIZE;
70         case 'u':
71             return EN_US_ADDITIONAL_U_SIZE;
72         default:
73             return 0;
74         }
75     }
76 
getAdditionalChars(const std::vector<int> * locale,const int c)77     static const int *getAdditionalChars(const std::vector<int> *locale, const int c) {
78         if (!isEnLocale(locale)) {
79             return 0;
80         }
81         switch (c) {
82         case 'a':
83             return EN_US_ADDITIONAL_A;
84         case 'e':
85             return EN_US_ADDITIONAL_E;
86         case 'i':
87             return EN_US_ADDITIONAL_I;
88         case 'o':
89             return EN_US_ADDITIONAL_O;
90         case 'u':
91             return EN_US_ADDITIONAL_U;
92         default:
93             return 0;
94         }
95     }
96 };
97 } // namespace latinime
98 #endif // LATINIME_ADDITIONAL_PROXIMITY_CHARS_H
99