1/*
2 * Copyright (C) 2014 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
17package com.android.inputmethod.keyboard.layout;
18
19import static com.android.inputmethod.keyboard.layout.DevanagariLetterConstants.*;
20
21import com.android.inputmethod.keyboard.KeyboardId;
22import com.android.inputmethod.keyboard.layout.customizer.LayoutCustomizer;
23import com.android.inputmethod.keyboard.layout.expected.ExpectedKey;
24import com.android.inputmethod.keyboard.layout.expected.ExpectedKeyboardBuilder;
25
26/**
27 * The Hindi keyboard.
28 */
29public final class Hindi extends LayoutBase {
30    private static final String LAYOUT_NAME = "hindi";
31
32    public Hindi(final LayoutCustomizer customizer) {
33        super(customizer, HindiSymbols.class, SymbolsShifted.class);
34    }
35
36    @Override
37    public String getName() { return LAYOUT_NAME; }
38
39    @Override
40    ExpectedKey[][] getCommonAlphabetLayout(boolean isPhone) { return ALPHABET_COMMON; }
41
42    @Override
43    ExpectedKey[][] getCommonAlphabetShiftLayout(boolean isPhone, final int elementId) {
44        if (elementId == KeyboardId.ELEMENT_ALPHABET_AUTOMATIC_SHIFTED) {
45            return getCommonAlphabetLayout(isPhone);
46        }
47        return ALPHABET_SHIFTED_COMMON;
48    }
49
50    private static final ExpectedKey[][] ALPHABET_COMMON = new ExpectedKeyboardBuilder()
51            .setKeysOfRow(1,
52                    // U+094C: "ौ" DEVANAGARI VOWEL SIGN AU
53                    // U+094C/U+0902: "ौं" DEVANAGARI VOWEL SIGN AU/DEVANAGARI SIGN ANUSVARA
54                    // U+0967: "१" DEVANAGARI DIGIT ONE
55                    key(VOWEL_SIGN_AU, "\u094C", joinMoreKeys(
56                            moreKey(VOWEL_SIGN_AU + "\u0902", "\u094C\u0902"),
57                            "\u0967", "1")),
58                    // U+0948: "ै" DEVANAGARI VOWEL SIGN AI
59                    // U+0948/U+0902: "ैं" DEVANAGARI VOWEL SIGN AI/DEVANAGARI SIGN ANUSVARA
60                    // U+0968: "२" DEVANAGARI DIGIT TWO
61                    key(VOWEL_SIGN_AI, "\u0948", joinMoreKeys(
62                            moreKey(VOWEL_SIGN_AI + "\u0902", "\u0948\u0902"),
63                            "\u0968", "2")),
64                    // U+093E: "ा" DEVANAGARI VOWEL SIGN AA
65                    // U+093E/U+0902: "ां" DEVANAGARI VOWEL SIGN AA/DEVANAGARI SIGN ANUSVARA
66                    // U+093E/U+0901: "ाँ" DEVANAGARI VOWEL SIGN AA/DEVANAGARI SIGN CANDRABINDU
67                    // U+0969: "३" DEVANAGARI DIGIT THREE
68                    key(VOWEL_SIGN_AA, "\u093E", joinMoreKeys(
69                            moreKey(VOWEL_SIGN_AA + "\u0902", "\u093E\u0902"),
70                            moreKey(VOWEL_SIGN_AA + "\u0901", "\u093E\u0901"),
71                            "\u0969", "3")),
72                    // U+0940: "ी" DEVANAGARI VOWEL SIGN II
73                    // U+0940/U+0902: "ीं" DEVANAGARI VOWEL SIGN II/DEVANAGARI SIGN ANUSVARA
74                    // U+096A: "४" DEVANAGARI DIGIT FOUR
75                    key(VOWEL_SIGN_II, "\u0940", joinMoreKeys(
76                            moreKey(VOWEL_SIGN_II + "\u0902", "\u0940\u0902"),
77                            "\u096A", "4")),
78                    // U+0942: "ू" DEVANAGARI VOWEL SIGN UU
79                    // U+0942/U+0902: "ूं" DEVANAGARI VOWEL SIGN UU/DEVANAGARI SIGN ANUSVARA
80                    // U+0942/U+0901: "ूँ" DEVANAGARI VOWEL SIGN UU/DEVANAGARI SIGN CANDRABINDU
81                    // U+096B: "५" DEVANAGARI DIGIT FIVE
82                    key(VOWEL_SIGN_UU, "\u0942", joinMoreKeys(
83                            moreKey(VOWEL_SIGN_UU + "\u0902", "\u0942\u0902"),
84                            moreKey(VOWEL_SIGN_UU + "\u0901", "\u0942\u0901"),
85                            "\u096B", "5")),
86                    // U+092C: "ब" DEVANAGARI LETTER BA
87                    // U+092C/U+0952: "ब॒" DEVANAGARI LETTER BA/DEVANAGARI STRESS SIGN ANUDATTA
88                    // U+096C: "६" DEVANAGARI DIGIT SIX
89                    key("\u092C", joinMoreKeys("\u092C\u0952", "\u096C", "6")),
90                    // U+0939: "ह" DEVANAGARI LETTER HA
91                    // U+096D: "७" DEVANAGARI DIGIT SEVEN
92                    key("\u0939", joinMoreKeys("\u096D", "7")),
93                    // U+0917: "ग" DEVANAGARI LETTER GA
94                    // U+091C/U+094D/U+091E:
95                    //     "ज्ञ" DEVANAGARI LETTER JA/DEVANAGARI SIGN VIRAMA/DEVANAGARI LETTER NYA
96                    // U+0917/U+093C: "ग़" DEVANAGARI LETTER GA/DEVANAGARI SIGN NUKTA
97                    // U+0917/U+0952: "ग॒" DEVANAGARI LETTER GA/DEVANAGARI STRESS SIGN ANUDATTA
98                    // U+096E: "८" DEVANAGARI DIGIT EIGHT
99                    key("\u0917", joinMoreKeys("\u091C\u094D\u091E", "\u0917\u093C", "\u0917\u0952",
100                            "\u096E", "8")),
101                    // U+0926: "द" DEVANAGARI LETTER DA
102                    // U+096F: "९" DEVANAGARI DIGIT NINE
103                    key("\u0926", joinMoreKeys("\u096F", "9")),
104                    // U+091C: "ज" DEVANAGARI LETTER JA
105                    // U+091C/U+0952: "ज॒" DEVANAGARI LETTER JA/DEVANAGARI STRESS SIGN ANUDATTA
106                    // U+091C/U+094D/U+091E:
107                    //     "ज्ञ" DEVANAGARI LETTER JA/DEVANAGARI SIGN VIRAMA/DEVANAGARI LETTER NYA
108                    // U+091C/U+093C: "ज़" DEVANAGARI LETTER JA/DEVANAGARI SIGN NUKTA
109                    // U+0966: "०" DEVANAGARI DIGIT ZERO
110                    key("\u091C", joinMoreKeys("\u091C\u0952", "\u091C\u094D\u091E", "\u091C\u093C",
111                            "\u0966", "0")),
112                    // U+0921: "ड" DEVANAGARI LETTER DDA
113                    // U+0921/U+0952: "ड॒" DEVANAGARI LETTER DDA/DEVANAGARI STRESS SIGN ANUDATTA
114                    // U+0921/U+093C: "ड़" DEVANAGARI LETTER DDA/DEVANAGARI SIGN NUKTA
115                    key("\u0921", joinMoreKeys("\u0921\u0952", "\u0921\u093C")))
116            .setKeysOfRow(2,
117                    // U+094B: "ो" DEVANAGARI VOWEL SIGN O
118                    // U+094B/U+0902: "қं" DEVANAGARI VOWEL SIGN O/DEVANAGARI SIGN ANUSVARA
119                    // U+0949: "ॉ" DEVANAGARI VOWEL SIGN CANDRA O
120                    // U+094A: "ॊ" DEVANAGARI VOWEL SIGN SHORT O
121                    key(VOWEL_SIGN_O, "\u094B", joinMoreKeys(
122                            moreKey(VOWEL_SIGN_O + "\u0902", "\u094B\u0902"),
123                            moreKey(VOWEL_SIGN_CANDRA_O, "\u0949"),
124                            moreKey(VOWEL_SIGN_SHORT_O, "\u094A"))),
125                    // U+0947: "े" DEVANAGARI VOWEL SIGN E
126                    // U+0947/U+0902: "ें" DEVANAGARI VOWEL SIGN E/DEVANAGARI SIGN ANUSVARA
127                    key(VOWEL_SIGN_E, "\u0947",
128                            moreKey(VOWEL_SIGN_E + "\u0902", "\u0947\u0902")),
129                    // U+094D: "्" DEVANAGARI SIGN VIRAMA
130                    key(SIGN_VIRAMA, "\u094D"),
131                    // U+093F: "ि" DEVANAGARI VOWEL SIGN I
132                    // U+093F/U+0902: "िं" DEVANAGARI VOWEL SIGN I/DEVANAGARI SIGN ANUSVARA
133                    key(VOWEL_SIGN_I, "\u093F",
134                            moreKey("\u093F" + SIGN_ANUSVARA, "\u093F\u0902")),
135                    // U+0941: "ु" DEVANAGARI VOWEL SIGN U
136                    // U+0941/U+0902: "ुं" DEVANAGARI VOWEL SIGN U/DEVANAGARI SIGN ANUSVARA
137                    // U+0941/U+0901: "ुँ" DEVANAGARI VOWEL SIGN U/DEVANAGARI SIGN CANDRABINDU
138                    key(VOWEL_SIGN_U, "\u0941", joinMoreKeys(
139                            moreKey(VOWEL_SIGN_U + "\u0902", "\u0941\u0902"),
140                            moreKey(VOWEL_SIGN_U + "\u0901", "\u0941\u0901"))),
141                    // U+092A: "प" DEVANAGARI LETTER PA
142                    "\u092A",
143                    // U+0930: "र" DEVANAGARI LETTER RA
144                    // U+090B: "ऋ" DEVANAGARI LETTER VOCALIC R
145                    // U+0930/U+093C: "ऱ" DEVANAGARI LETTER RA/DEVANAGARI SIGN NUKTA
146                    // U+0960: "ॠ" DEVANAGARI LETTER VOCALIC RR
147                    key("\u0930", joinMoreKeys("\u090B", "\u0930\u093C", "\u0960")),
148                    // U+0915: "क" DEVANAGARI LETTER KA
149                    // U+0915/U+093C: "क़" DEVANAGARI LETTER KA/DEVANAGARI SIGN NUKTA
150                    key("\u0915", moreKey("\u0915\u093C")),
151                    // U+0924: "त" DEVANAGARI LETTER TA
152                    // U+0924/U+094D/U+0930:
153                    //     "त्र" DEVANAGARI LETTER TA/DEVANAGARI SIGN VIRAMA/DEVANAGARI LETTER RA
154                    key("\u0924", moreKey("\u0924\u094D\u0930")),
155                    // U+091A: "च" DEVANAGARI LETTER CA
156                    // U+091F: "ट" DEVANAGARI LETTER TTA
157                    "\u091A","\u091F")
158            .setKeysOfRow(3,
159                    // U+0949: "ॉ" DEVANAGARI VOWEL SIGN CANDRA O
160                    key(VOWEL_SIGN_CANDRA_O, "\u0949"),
161                    // U+0902: "ं" DEVANAGARI SIGN ANUSVARA
162                    key(SIGN_ANUSVARA, "\u0902"),
163                    // U+092E: "म" DEVANAGARI LETTER MA
164                    // U+0950: "ॐ" DEVANAGARI OM
165                    key("\u092E", moreKey("\u0950")),
166                    // U+0928: "न" DEVANAGARI LETTER NA
167                    // U+091E: "ञ" DEVANAGARI LETTER NYA
168                    // U+0919: "ङ" DEVANAGARI LETTER NGA
169                    // U+0928/U+093C: "ऩ" DEVANAGARI LETTER NA/DEVANAGARI SIGN NUKTA
170                    key("\u0928", joinMoreKeys("\u091E", "\u0919", "\u0928\u093C")),
171                    // U+0935: "व" DEVANAGARI LETTER VA
172                    "\u0935",
173                    // U+0932: "ल" DEVANAGARI LETTER LA
174                    // U+090C: "ऌ" DEVANAGARI LETTER VOCALIC L
175                    // U+0961: "ॡ" DEVANAGARI LETTER VOCALIC LL
176                    key("\u0932", joinMoreKeys("\u090C", "\u0961")),
177                    // U+0938: "स" DEVANAGARI LETTER SA
178                    "\u0938",
179                    // U+092F: "य" DEVANAGARI LETTER YA
180                    // U+095F: "य़" DEVANAGARI LETTER YYA
181                    key("\u092F", moreKey("\u095F")),
182                    // U+093C: "़" DEVANAGARI SIGN NUKTA
183                    // U+097D: "ॽ" DEVANAGARI LETTER GLOTTAL STOP
184                    // U+0970: "॰" DEVANAGARI ABBREVIATION SIGN
185                    // U+093D: "ऽ" DEVANAGARI SIGN AVAGRAHA
186                    key(SIGN_NUKTA, "\u093C", joinMoreKeys(
187                            moreKey(LETTER_GLOTTAL_STOP, "\u097D"),
188                            moreKey(ABBREVIATION_SIGN, "\u0970"),
189                            moreKey(SIGN_AVAGRAHA, "\u093D"))))
190            .build();
191
192    private static final ExpectedKey[][] ALPHABET_SHIFTED_COMMON = new ExpectedKeyboardBuilder()
193            .setKeysOfRow(1,
194                    // U+0914: "औ" DEVANAGARI LETTER AU
195                    // U+0912/U+0902: "ऒं" DEVANAGARI LETTER SHORT O//DEVANAGARI SIGN ANUSVARA
196                    key("\u0914", moreKey("\u0912\u0902")),
197                    // U+0910: "ऐ" DEVANAGARI LETTER AI
198                    // U+0910/U+0902: "ऐं" DEVANAGARI LETTER AI/DEVANAGARI SIGN ANUSVARA
199                    key("\u0910", moreKey("\u0910\u0902")),
200                    // U+0906: "आ" DEVANAGARI LETTER AA
201                    // U+0906/U+0902: "आं" DEVANAGARI LETTER AA/DEVANAGARI SIGN ANUSVARA
202                    // U+0906/U+0901: "आँ" DEVANAGARI LETTER AA/DEVANAGARI SIGN CANDRABINDU
203                    key("\u0906", joinMoreKeys("\u0906\u0902", "\u0906\u0901")),
204                    // U+0908: "ई" DEVANAGARI LETTER II
205                    // U+0908/U+0902: "ईं" DEVANAGARI LETTER II/DEVANAGARI SIGN ANUSVARA
206                    key("\u0908", moreKey("\u0908\u0902")),
207                    // U+090A: "ऊ" DEVANAGARI LETTER UU
208                    // U+090A/U+0902: "ऊं" DEVANAGARI LETTER UU/DEVANAGARI SIGN ANUSVARA
209                    // U+090A/U+0901: "ऊँ" DEVANAGARI LETTER UU/DEVANAGARI SIGN CANDRABINDU
210                    key("\u090A", joinMoreKeys("\u090A\u0902", "\u090A\u0901")),
211                    // U+092D: "भ" DEVANAGARI LETTER BHA
212                    // U+0903: "ः" DEVANAGARI SIGN VISARGA
213                    // U+0918: "घ" DEVANAGARI LETTER GHA
214                    "\u092D", key(SIGN_VISARGA, "\u0903"), "\u0918",
215                    // U+0927: "ध" DEVANAGARI LETTER DHA
216                    // U+0915/U+094D/U+0937:
217                    //     "क्ष" DEVANAGARI LETTER KA/DEVANAGARI SIGN VIRAMA/DEVANAGARI LETTER SSA
218                    // U+0936/U+094D/U+0930:
219                    //     "श्र" DEVANAGARI LETTER SHA/DEVANAGARI SIGN VIRAMA/DEVANAGARI LETTER RA
220                    key("\u0927", joinMoreKeys("\u0915\u094D\u0937", "\u0936\u094D\u0930")),
221                    // U+091D: "झ" DEVANAGARI LETTER JHA
222                    // U+0922: "ढ" DEVANAGARI LETTER DDHA
223                    "\u091D", "\u0922")
224            .setKeysOfRow(2,
225                    // U+0913: "ओ" DEVANAGARI LETTER O
226                    // U+0913/U+0902: "ओं" DEVANAGARI LETTER O/DEVANAGARI SIGN ANUSVARA
227                    // U+0911: "ऑ" DEVANAGARI LETTER CANDRA O
228                    // U+0912: "ऒ" DEVANAGARI LETTER SHORT O
229                    key("\u0913", joinMoreKeys("\u0913\u0902", "\u0911", "\u0912")),
230                    // U+090F: "ए" DEVANAGARI LETTER E
231                    // U+090F/U+0902: "एं" DEVANAGARI LETTER E/DEVANAGARI SIGN ANUSVARA
232                    // U+090F/U+0901: "एँ" DEVANAGARI LETTER E/DEVANAGARI SIGN CANDRABINDU
233                    // U+090D: "ऍ" DEVANAGARI LETTER CANDRA E
234                    // U+090E: "ऎ" DEVANAGARI LETTER SHORT E
235                    key("\u090F", joinMoreKeys("\u090F\u0902", "\u090F\u0901", "\u090D", "\u090E")),
236                    // U+0905: "अ" DEVANAGARI LETTER A
237                    // U+0905/U+0902: "अं" DEVANAGARI LETTER A/DEVANAGARI SIGN ANUSVARA
238                    // U+0905/U+0901: "अँ" DEVANAGARI LETTER A/DEVANAGARI SIGN CANDRABINDU
239                    key("\u0905", joinMoreKeys("\u0905\u0902", "\u0905\u0901")),
240                    // U+0907: "इ" DEVANAGARI LETTER I
241                    // U+0907/U+0902: "इं" DEVANAGARI LETTER I/DEVANAGARI SIGN ANUSVARA
242                    // U+0907/U+0901: "इं" DEVANAGARI LETTER I/DEVANAGARI SIGN CANDRABINDU
243                    key("\u0907", joinMoreKeys("\u0907\u0902", "\u0907\u0901")),
244                    // U+0909: "उ" DEVANAGARI LETTER U
245                    // U+0909/U+0902: "उं" DEVANAGARI LETTER U/DEVANAGARI SIGN ANUSVARA
246                    // U+0909/U+0901: "उँ" DEVANAGARI LETTER U/DEVANAGARI SIGN CANDRABINDU
247                    key("\u0909", joinMoreKeys("\u0909\u0902", "\u0909\u0901")),
248                    // U+092B: "फ" DEVANAGARI LETTER PHA
249                    // U+092B/U+093C: "फ़" DEVANAGARI LETTER PHA/DEVANAGARI SIGN NUKTA
250                    key("\u092B", moreKey("\u092B\u093C")),
251                    // U+0931: "ऱ" DEVANAGARI LETTER RRA
252                    // U+094D/U+0930: "्र" DEVANAGARI SIGN VIRAMA/DEVANAGARI LETTER RA
253                    // U+0930/U+094D: "र्" DEVANAGARI LETTER RA/DEVANAGARI SIGN VIRAMA
254                    key("\u0931", joinMoreKeys("\u094D\u0930", "\u0930\u094D")),
255                    // U+0916: "ख" DEVANAGARI LETTER KHA
256                    // U+0916/U+093C: "ख़" DEVANAGARI LETTER KHA/DEVANAGARI SIGN NUKTA
257                    key("\u0916", moreKey("\u0916\u093C")),
258                    // U+0925: "थ" DEVANAGARI LETTER THA
259                    // U+091B: "छ" DEVANAGARI LETTER CHA
260                    // U+0920: "ठ" DEVANAGARI LETTER TTHA
261                    "\u0925", "\u091B", "\u0920")
262            .setKeysOfRow(3,
263                    // U+0911: "ऑ" DEVANAGARI LETTER CANDRA O
264                    "\u0911",
265                    // U+0901: "ँ" DEVANAGARI SIGN CANDRABINDU
266                    // U+0945: "ॅ" DEVANAGARI VOWEL SIGN CANDRA E
267                    key(SIGN_CANDRABINDU, "\u0901", moreKey(VOWEL_SIGN_CANDRA_E, "\u0945")),
268                    // U+0923: "ण" DEVANAGARI LETTER NNA
269                    // U+0929: "ऩ" DEVANAGARI LETTER NNNA
270                    "\u0923", "\u0929",
271                    // U+0933: "ळ" DEVANAGARI LETTER LLA
272                    // U+0934: "ऴ" DEVANAGARI LETTER LLLA
273                    key("\u0933", moreKey("\u0934")),
274                    // U+0936: "श" DEVANAGARI LETTER SHA
275                    // U+0937: "ष" DEVANAGARI LETTER SSA
276                    "\u0936", "\u0937",
277                    // U+0943: "ृ" DEVANAGARI VOWEL SIGN VOCALIC R
278                    // U+0944: "ॄ" DEVANAGARI VOWEL SIGN VOCALIC RR
279                    key(VOWEL_SIGN_VOCALIC_R, "\u0943", moreKey(VOWEL_SIGN_VOCALIC_RR, "\u0944")),
280                    // U+091E: "ञ" DEVANAGARI LETTER NYA
281                    "\u091E")
282            .build();
283
284    static class HindiSymbols extends Symbols {
285        public HindiSymbols(final LayoutCustomizer customizer) {
286            super(customizer);
287        }
288
289        @Override
290        public ExpectedKey[][] getLayout(final boolean isPhone) {
291            return new ExpectedKeyboardBuilder(super.getLayout(isPhone))
292                    // U+0967: "१" DEVANAGARI DIGIT ONE
293                    // U+00B9: "¹" SUPERSCRIPT ONE
294                    // U+00BD: "½" VULGAR FRACTION ONE HALF
295                    // U+2153: "⅓" VULGAR FRACTION ONE THIRD
296                    // U+00BC: "¼" VULGAR FRACTION ONE QUARTER
297                    // U+215B: "⅛" VULGAR FRACTION ONE EIGHTH
298                    .replaceKeyOfLabel("1", key("\u0967",
299                            joinMoreKeys("1", "\u00B9", "\u00BD", "\u2153", "\u00BC", "\u215B")))
300                    // U+0968: "२" DEVANAGARI DIGIT TWO
301                    // U+00B2: "²" SUPERSCRIPT TWO
302                    // U+2154: "⅔" VULGAR FRACTION TWO THIRDS
303                    .replaceKeyOfLabel("2", key("\u0968", joinMoreKeys("2", "\u00B2", "\u2154")))
304                    // U+0969: "३" DEVANAGARI DIGIT THREE
305                    // U+00B3: "³" SUPERSCRIPT THREE
306                    // U+00BE: "¾" VULGAR FRACTION THREE QUARTERS
307                    // U+215C: "⅜" VULGAR FRACTION THREE EIGHTHS
308                    .replaceKeyOfLabel("3", key("\u0969",
309                            joinMoreKeys("3", "\u00B3", "\u00BE","\u215C")))
310                    // U+096A: "४" DEVANAGARI DIGIT FOUR
311                    // U+2074: "⁴" SUPERSCRIPT FOUR
312                    .replaceKeyOfLabel("4", key("\u096A", joinMoreKeys("4", "\u2074")))
313                    // U+096B: "५" DEVANAGARI DIGIT FIVE
314                    // U+215D: "⅝" VULGAR FRACTION FIVE EIGHTHS
315                    .replaceKeyOfLabel("5", key("\u096B", joinMoreKeys("5", "\u215D")))
316                    // U+096C: "६" DEVANAGARI DIGIT SIX
317                    .replaceKeyOfLabel("6", key("\u096C", moreKey("6")))
318                    // U+096D: "७" DEVANAGARI DIGIT SEVEN
319                    // U+215E: "⅞" VULGAR FRACTION SEVEN EIGHTHS
320                    .replaceKeyOfLabel("7", key("\u096D", joinMoreKeys("7", "\u215E")))
321                    // U+096E: "८" DEVANAGARI DIGIT EIGHT
322                    .replaceKeyOfLabel("8", key("\u096E", moreKey("8")))
323                    // U+096F: "९" DEVANAGARI DIGIT NINE
324                    .replaceKeyOfLabel("9", key("\u096F", moreKey("9")))
325                    // U+0966: "०" DEVANAGARI DIGIT ZERO
326                    // U+207F: "ⁿ" SUPERSCRIPT LATIN SMALL LETTER N
327                    // U+2205: "∅" EMPTY SET
328                    .replaceKeyOfLabel("0", key("\u0966", joinMoreKeys("0", "\u207F", "\u2205")))
329                    .build();
330        }
331    }
332}
333