| Jordan Liu | 5e17455 | 2019-11-07 11:54:10 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2006 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 | package com.android.cellbroadcastservice; |
| 18 | |
| 19 | import android.annotation.UnsupportedAppUsage; |
| 20 | import android.util.Log; |
| 21 | import android.util.SparseIntArray; |
| 22 | |
| 23 | /** |
| 24 | * This class implements the character set mapping between |
| 25 | * the GSM SMS 7-bit alphabet specified in TS 23.038 6.2.1 |
| 26 | * and UTF-16 |
| 27 | * |
| 28 | * {@hide} |
| 29 | */ |
| 30 | public class GsmAlphabet { |
| 31 | private static final String TAG = "GSM"; |
| 32 | |
| 33 | private GsmAlphabet() { |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * This escapes extended characters, and when present indicates that the |
| 38 | * following character should be looked up in the "extended" table. |
| 39 | * |
| 40 | * gsmToChar(GSM_EXTENDED_ESCAPE) returns 0xffff |
| 41 | */ |
| 42 | public static final byte GSM_EXTENDED_ESCAPE = 0x1B; |
| 43 | |
| 44 | /** |
| 45 | * User data header requires one octet for length. Count as one septet, because |
| 46 | * all combinations of header elements below will have at least one free bit |
| 47 | * when padding to the nearest septet boundary. |
| 48 | */ |
| 49 | public static final int UDH_SEPTET_COST_LENGTH = 1; |
| 50 | |
| 51 | /** |
| 52 | * Using a non-default language locking shift table OR single shift table |
| 53 | * requires a user data header of 3 octets, or 4 septets, plus UDH length. |
| 54 | */ |
| 55 | public static final int UDH_SEPTET_COST_ONE_SHIFT_TABLE = 4; |
| 56 | |
| 57 | /** |
| 58 | * Using a non-default language locking shift table AND single shift table |
| 59 | * requires a user data header of 6 octets, or 7 septets, plus UDH length. |
| 60 | */ |
| 61 | public static final int UDH_SEPTET_COST_TWO_SHIFT_TABLES = 7; |
| 62 | |
| 63 | /** |
| 64 | * Multi-part messages require a user data header of 5 octets, or 6 septets, |
| 65 | * plus UDH length. |
| 66 | */ |
| 67 | public static final int UDH_SEPTET_COST_CONCATENATED_MESSAGE = 6; |
| 68 | |
| 69 | /** Reverse mapping from Unicode characters to indexes into language tables. */ |
| 70 | @UnsupportedAppUsage |
| 71 | private static SparseIntArray[] sCharsToGsmTables; |
| 72 | |
| 73 | /** Reverse mapping from Unicode characters to indexes into language shift tables. */ |
| 74 | @UnsupportedAppUsage |
| 75 | private static SparseIntArray[] sCharsToShiftTables; |
| 76 | |
| 77 | /** |
| 78 | * GSM default 7 bit alphabet plus national language locking shift character tables. |
| 79 | * Comment lines above strings indicate the lower four bits of the table position. |
| 80 | */ |
| 81 | @UnsupportedAppUsage |
| 82 | private static final String[] sLanguageTables = { |
| 83 | /* 3GPP TS 23.038 V9.1.1 section 6.2.1 - GSM 7 bit Default Alphabet |
| 84 | 01.....23.....4.....5.....6.....7.....8.....9.....A.B.....C.....D.E.....F.....0.... |
| 85 | .1 */ |
| 86 | "@\u00a3$\u00a5\u00e8\u00e9\u00f9\u00ec\u00f2\u00c7\n\u00d8\u00f8\r\u00c5\u00e5\u0394_" |
| 87 | // 2.....3.....4.....5.....6.....7.....8.....9.....A.....B.....C.....D.....E. |
| 88 | // .... |
| 89 | + "\u03a6\u0393\u039b\u03a9\u03a0\u03a8\u03a3\u0398\u039e\uffff\u00c6\u00e6" |
| 90 | + "\u00df" |
| 91 | // F.....012.34.....56789ABCDEF0123456789ABCDEF0.....123456789ABCDEF0123456789A |
| 92 | + "\u00c9 !\"#\u00a4%&'()*+,-./0123456789:;<=>?\u00a1ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| 93 | // B.....C.....D.....E.....F.....0.....123456789ABCDEF0123456789AB.....C.... |
| 94 | // .D..... |
| 95 | + "\u00c4\u00d6\u00d1\u00dc\u00a7\u00bfabcdefghijklmnopqrstuvwxyz\u00e4\u00f6" |
| 96 | + "\u00f1" |
| 97 | // E.....F..... |
| 98 | + "\u00fc\u00e0", |
| 99 | |
| 100 | /* A.3.1 Turkish National Language Locking Shift Table |
| 101 | 01.....23.....4.....5.....6.....7.....8.....9.....A.B.....C.....D.E.....F.....0.... |
| 102 | .1 */ |
| 103 | "@\u00a3$\u00a5\u20ac\u00e9\u00f9\u0131\u00f2\u00c7\n\u011e\u011f\r\u00c5\u00e5\u0394_" |
| 104 | // 2.....3.....4.....5.....6.....7.....8.....9.....A.....B.....C.....D.....E. |
| 105 | // .... |
| 106 | + "\u03a6\u0393\u039b\u03a9\u03a0\u03a8\u03a3\u0398\u039e\uffff\u015e\u015f" |
| 107 | + "\u00df" |
| 108 | // F.....012.34.....56789ABCDEF0123456789ABCDEF0.....123456789ABCDEF0123456789A |
| 109 | + "\u00c9 !\"#\u00a4%&'()*+,-./0123456789:;<=>?\u0130ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| 110 | // B.....C.....D.....E.....F.....0.....123456789ABCDEF0123456789AB.....C.... |
| 111 | // .D..... |
| 112 | + "\u00c4\u00d6\u00d1\u00dc\u00a7\u00e7abcdefghijklmnopqrstuvwxyz\u00e4\u00f6" |
| 113 | + "\u00f1" |
| 114 | // E.....F..... |
| 115 | + "\u00fc\u00e0", |
| 116 | |
| 117 | /* A.3.2 Void (no locking shift table for Spanish) */ |
| 118 | "", |
| 119 | |
| 120 | /* A.3.3 Portuguese National Language Locking Shift Table |
| 121 | 01.....23.....4.....5.....6.....7.....8.....9.....A.B.....C.....D.E.....F.....0.... |
| 122 | .1 */ |
| 123 | "@\u00a3$\u00a5\u00ea\u00e9\u00fa\u00ed\u00f3\u00e7\n\u00d4\u00f4\r\u00c1\u00e1\u0394_" |
| 124 | // 2.....3.....4.....5.....67.8.....9.....AB.....C.....D.....E.....F.....012 |
| 125 | // .34..... |
| 126 | + "\u00aa\u00c7\u00c0\u221e^\\\u20ac\u00d3|\uffff\u00c2\u00e2\u00ca\u00c9 " |
| 127 | + "!\"#\u00ba" |
| 128 | // 56789ABCDEF0123456789ABCDEF0.....123456789ABCDEF0123456789AB.....C.....D.. |
| 129 | // ...E..... |
| 130 | + "%&'()*+,-./0123456789:;<=>?\u00cdABCDEFGHIJKLMNOPQRSTUVWXYZ\u00c3\u00d5" |
| 131 | + "\u00da\u00dc" |
| 132 | // F.....0123456789ABCDEF0123456789AB.....C.....DE.....F..... |
| 133 | + "\u00a7~abcdefghijklmnopqrstuvwxyz\u00e3\u00f5`\u00fc\u00e0", |
| 134 | |
| 135 | /* A.3.4 Bengali National Language Locking Shift Table |
| 136 | 0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A.B.....CD.EF.....0..... */ |
| 137 | "\u0981\u0982\u0983\u0985\u0986\u0987\u0988\u0989\u098a\u098b\n\u098c \r \u098f\u0990" |
| 138 | // 123.....4.....5.....6.....7.....8.....9.....A.....B.....C.....D.....E.... |
| 139 | // .F..... |
| 140 | + " \u0993\u0994\u0995\u0996\u0997\u0998\u0999\u099a\uffff\u099b\u099c\u099d" |
| 141 | + "\u099e" |
| 142 | // 012.....3.....4.....5.....6.....7.....89A.....B.....CD.....EF.... |
| 143 | // .0123456789ABC |
| 144 | + " !\u099f\u09a0\u09a1\u09a2\u09a3\u09a4)(\u09a5\u09a6,\u09a7" |
| 145 | + ".\u09a80123456789:; " |
| 146 | // D.....E.....F0.....1.....2.....3.....4.....56.....789A.....B.....C.....D..... |
| 147 | + "\u09aa\u09ab?\u09ac\u09ad\u09ae\u09af\u09b0 \u09b2 " |
| 148 | + "\u09b6\u09b7\u09b8\u09b9" |
| 149 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....789.....A.....BCD... |
| 150 | // ..E..... |
| 151 | + "\u09bc\u09bd\u09be\u09bf\u09c0\u09c1\u09c2\u09c3\u09c4 \u09c7\u09c8 " |
| 152 | + "\u09cb\u09cc" |
| 153 | // F.....0.....123456789ABCDEF0123456789AB.....C.....D.....E.....F..... |
| 154 | + "\u09cd\u09ceabcdefghijklmnopqrstuvwxyz\u09d7\u09dc\u09dd\u09f0\u09f1", |
| 155 | |
| 156 | /* A.3.5 Gujarati National Language Locking Shift Table |
| 157 | 0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A.B.....C.....D.EF.....0 |
| 158 | .....*/ |
| 159 | "\u0a81\u0a82\u0a83\u0a85\u0a86\u0a87\u0a88\u0a89\u0a8a\u0a8b\n\u0a8c\u0a8d\r " |
| 160 | + "\u0a8f\u0a90" |
| 161 | // 1.....23.....4.....5.....6.....7.....8.....9.....A.....B.....C.....D.....E |
| 162 | // ..... |
| 163 | + "\u0a91 \u0a93\u0a94\u0a95\u0a96\u0a97\u0a98\u0a99\u0a9a\uffff\u0a9b\u0a9c" |
| 164 | + "\u0a9d" |
| 165 | // F.....012.....3.....4.....5.....6.....7.....89A.....B.....CD.....EF.... |
| 166 | // .0123456789AB |
| 167 | + "\u0a9e !\u0a9f\u0aa0\u0aa1\u0aa2\u0aa3\u0aa4)(\u0aa5\u0aa6,\u0aa7" |
| 168 | + ".\u0aa80123456789:;" |
| 169 | // CD.....E.....F0.....1.....2.....3.....4.....56.....7.....89.....A.....B... |
| 170 | // ..C..... |
| 171 | + " \u0aaa\u0aab?\u0aac\u0aad\u0aae\u0aaf\u0ab0 \u0ab2\u0ab3 " |
| 172 | + "\u0ab5\u0ab6\u0ab7\u0ab8" |
| 173 | // D.....E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89.....A |
| 174 | // ..... |
| 175 | + "\u0ab9\u0abc\u0abd\u0abe\u0abf\u0ac0\u0ac1\u0ac2\u0ac3\u0ac4\u0ac5 " |
| 176 | + "\u0ac7\u0ac8" |
| 177 | // B.....CD.....E.....F.....0.....123456789ABCDEF0123456789AB.....C.....D.... |
| 178 | // .E..... |
| 179 | + "\u0ac9 \u0acb\u0acc\u0acd\u0ad0abcdefghijklmnopqrstuvwxyz\u0ae0\u0ae1" |
| 180 | + "\u0ae2\u0ae3" |
| 181 | // F..... |
| 182 | + "\u0af1", |
| 183 | |
| 184 | /* A.3.6 Hindi National Language Locking Shift Table |
| 185 | 0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A.B.....C.....D.E.....F. |
| 186 | ....*/ |
| 187 | "\u0901\u0902\u0903\u0905\u0906\u0907\u0908\u0909\u090a\u090b\n\u090c\u090d\r\u090e" |
| 188 | + "\u090f" |
| 189 | // 0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A.....B.....C. |
| 190 | // ....D..... |
| 191 | + "\u0910\u0911\u0912\u0913\u0914\u0915\u0916\u0917\u0918\u0919\u091a\uffff" |
| 192 | + "\u091b\u091c" |
| 193 | // E.....F.....012.....3.....4.....5.....6.....7.....89A.....B.....CD.....EF. |
| 194 | // ....012345 |
| 195 | + "\u091d\u091e !\u091f\u0920\u0921\u0922\u0923\u0924)(\u0925\u0926,\u0927" |
| 196 | + ".\u0928012345" |
| 197 | // 6789ABC.....D.....E.....F0.....1.....2.....3.....4.....5.....6.....7.....8 |
| 198 | // ..... |
| 199 | + "6789:;\u0929\u092a\u092b?\u092c\u092d\u092e\u092f\u0930\u0931\u0932\u0933" |
| 200 | + "\u0934" |
| 201 | // 9.....A.....B.....C.....D.....E.....F.....0.....1.....2.....3.....4.....5. |
| 202 | // ....6..... |
| 203 | + "\u0935\u0936\u0937\u0938\u0939\u093c\u093d\u093e\u093f\u0940\u0941\u0942" |
| 204 | + "\u0943\u0944" |
| 205 | // 7.....8.....9.....A.....B.....C.....D.....E.....F.....0.... |
| 206 | // .123456789ABCDEF012345678 |
| 207 | + "\u0945\u0946\u0947\u0948\u0949\u094a\u094b\u094c\u094d" |
| 208 | + "\u0950abcdefghijklmnopqrstuvwx" |
| 209 | // 9AB.....C.....D.....E.....F..... |
| 210 | + "yz\u0972\u097b\u097c\u097e\u097f", |
| 211 | |
| 212 | /* A.3.7 Kannada National Language Locking Shift Table |
| 213 | NOTE: TS 23.038 V9.1.1 shows code 0x24 as \u0caa, corrected to \u0ca1 (typo) |
| 214 | 01.....2.....3.....4.....5.....6.....7.....8.....9.....A.B.....CD.E.....F.....0.... |
| 215 | .1 */ |
| 216 | " \u0c82\u0c83\u0c85\u0c86\u0c87\u0c88\u0c89\u0c8a\u0c8b\n\u0c8c \r\u0c8e\u0c8f\u0c90 " |
| 217 | // 2.....3.....4.....5.....6.....7.....8.....9.....A.....B.....C.....D.....E. |
| 218 | // ....F..... |
| 219 | + "\u0c92\u0c93\u0c94\u0c95\u0c96\u0c97\u0c98\u0c99\u0c9a\uffff\u0c9b\u0c9c" |
| 220 | + "\u0c9d\u0c9e" |
| 221 | // 012.....3.....4.....5.....6.....7.....89A.....B.....CD.....EF.... |
| 222 | // .0123456789ABC |
| 223 | + " !\u0c9f\u0ca0\u0ca1\u0ca2\u0ca3\u0ca4)(\u0ca5\u0ca6,\u0ca7" |
| 224 | + ".\u0ca80123456789:; " |
| 225 | // D.....E.....F0.....1.....2.....3.....4.....5.....6.....7.....89.....A.... |
| 226 | // .B..... |
| 227 | + "\u0caa\u0cab?\u0cac\u0cad\u0cae\u0caf\u0cb0\u0cb1\u0cb2\u0cb3 " |
| 228 | + "\u0cb5\u0cb6\u0cb7" |
| 229 | // C.....D.....E.....F.....0.....1.....2.....3.....4.....5.....6.....78.....9 |
| 230 | // ..... |
| 231 | + "\u0cb8\u0cb9\u0cbc\u0cbd\u0cbe\u0cbf\u0cc0\u0cc1\u0cc2\u0cc3\u0cc4 " |
| 232 | + "\u0cc6\u0cc7" |
| 233 | // A.....BC.....D.....E.....F.....0.....123456789ABCDEF0123456789AB.....C.... |
| 234 | // .D..... |
| 235 | + "\u0cc8 \u0cca\u0ccb\u0ccc\u0ccd\u0cd5abcdefghijklmnopqrstuvwxyz\u0cd6" |
| 236 | + "\u0ce0\u0ce1" |
| 237 | // E.....F..... |
| 238 | + "\u0ce2\u0ce3", |
| 239 | |
| 240 | /* A.3.8 Malayalam National Language Locking Shift Table |
| 241 | 01.....2.....3.....4.....5.....6.....7.....8.....9.....A.B.....CD.E.....F.....0.... |
| 242 | .1 */ |
| 243 | " \u0d02\u0d03\u0d05\u0d06\u0d07\u0d08\u0d09\u0d0a\u0d0b\n\u0d0c \r\u0d0e\u0d0f\u0d10 " |
| 244 | // 2.....3.....4.....5.....6.....7.....8.....9.....A.....B.....C.....D.....E. |
| 245 | // ....F..... |
| 246 | + "\u0d12\u0d13\u0d14\u0d15\u0d16\u0d17\u0d18\u0d19\u0d1a\uffff\u0d1b\u0d1c" |
| 247 | + "\u0d1d\u0d1e" |
| 248 | // 012.....3.....4.....5.....6.....7.....89A.....B.....CD.....EF.... |
| 249 | // .0123456789ABC |
| 250 | + " !\u0d1f\u0d20\u0d21\u0d22\u0d23\u0d24)(\u0d25\u0d26,\u0d27" |
| 251 | + ".\u0d280123456789:; " |
| 252 | // D.....E.....F0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A |
| 253 | // ..... |
| 254 | + "\u0d2a\u0d2b?\u0d2c\u0d2d\u0d2e\u0d2f\u0d30\u0d31\u0d32\u0d33\u0d34\u0d35" |
| 255 | + "\u0d36" |
| 256 | // B.....C.....D.....EF.....0.....1.....2.....3.....4.....5.....6.....78.... |
| 257 | // .9..... |
| 258 | + "\u0d37\u0d38\u0d39 \u0d3d\u0d3e\u0d3f\u0d40\u0d41\u0d42\u0d43\u0d44 " |
| 259 | + "\u0d46\u0d47" |
| 260 | // A.....BC.....D.....E.....F.....0.....123456789ABCDEF0123456789AB.....C.... |
| 261 | // .D..... |
| 262 | + "\u0d48 \u0d4a\u0d4b\u0d4c\u0d4d\u0d57abcdefghijklmnopqrstuvwxyz\u0d60" |
| 263 | + "\u0d61\u0d62" |
| 264 | // E.....F..... |
| 265 | + "\u0d63\u0d79", |
| 266 | |
| 267 | /* A.3.9 Oriya National Language Locking Shift Table |
| 268 | 0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A.B.....CD.EF.....0.... |
| 269 | .12 */ |
| 270 | "\u0b01\u0b02\u0b03\u0b05\u0b06\u0b07\u0b08\u0b09\u0b0a\u0b0b\n\u0b0c \r \u0b0f\u0b10 " |
| 271 | // 3.....4.....5.....6.....7.....8.....9.....A.....B.....C.....D.....E.....F. |
| 272 | // ....01 |
| 273 | + "\u0b13\u0b14\u0b15\u0b16\u0b17\u0b18\u0b19\u0b1a\uffff\u0b1b\u0b1c\u0b1d" |
| 274 | + "\u0b1e !" |
| 275 | // 2.....3.....4.....5.....6.....7.....89A.....B.....CD.....EF.... |
| 276 | // .0123456789ABCD..... |
| 277 | + "\u0b1f\u0b20\u0b21\u0b22\u0b23\u0b24)(\u0b25\u0b26,\u0b27" |
| 278 | + ".\u0b280123456789:; \u0b2a" |
| 279 | // E.....F0.....1.....2.....3.....4.....56.....7.....89.....A.....B.....C.... |
| 280 | // .D..... |
| 281 | + "\u0b2b?\u0b2c\u0b2d\u0b2e\u0b2f\u0b30 \u0b32\u0b33 " |
| 282 | + "\u0b35\u0b36\u0b37\u0b38\u0b39" |
| 283 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....789.....A.....BCD... |
| 284 | // ..E..... |
| 285 | + "\u0b3c\u0b3d\u0b3e\u0b3f\u0b40\u0b41\u0b42\u0b43\u0b44 \u0b47\u0b48 " |
| 286 | + "\u0b4b\u0b4c" |
| 287 | // F.....0.....123456789ABCDEF0123456789AB.....C.....D.....E.....F..... |
| 288 | + "\u0b4d\u0b56abcdefghijklmnopqrstuvwxyz\u0b57\u0b60\u0b61\u0b62\u0b63", |
| 289 | |
| 290 | /* A.3.10 Punjabi National Language Locking Shift Table |
| 291 | 0.....1.....2.....3.....4.....5.....6.....7.....8.....9A.BCD.EF.....0.....123.....4. |
| 292 | ....*/ |
| 293 | "\u0a01\u0a02\u0a03\u0a05\u0a06\u0a07\u0a08\u0a09\u0a0a \n \r \u0a0f\u0a10 " |
| 294 | + "\u0a13\u0a14" |
| 295 | // 5.....6.....7.....8.....9.....A.....B.....C.....D.....E.....F.....012.... |
| 296 | // .3..... |
| 297 | + "\u0a15\u0a16\u0a17\u0a18\u0a19\u0a1a\uffff\u0a1b\u0a1c\u0a1d\u0a1e " |
| 298 | + "!\u0a1f\u0a20" |
| 299 | // 4.....5.....6.....7.....89A.....B.....CD.....EF.....0123456789ABCD.....E.. |
| 300 | // ...F0..... |
| 301 | + "\u0a21\u0a22\u0a23\u0a24)(\u0a25\u0a26,\u0a27.\u0a280123456789:; " |
| 302 | + "\u0a2a\u0a2b?\u0a2c" |
| 303 | // 1.....2.....3.....4.....56.....7.....89.....A.....BC.....D.....E.....F0... |
| 304 | // ..1..... |
| 305 | + "\u0a2d\u0a2e\u0a2f\u0a30 \u0a32\u0a33 \u0a35\u0a36 \u0a38\u0a39\u0a3c " |
| 306 | + "\u0a3e\u0a3f" |
| 307 | // 2.....3.....4.....56789.....A.....BCD.....E.....F.....0.... |
| 308 | // .123456789ABCDEF012345678 |
| 309 | + "\u0a40\u0a41\u0a42 \u0a47\u0a48 " |
| 310 | + "\u0a4b\u0a4c\u0a4d\u0a51abcdefghijklmnopqrstuvwx" |
| 311 | // 9AB.....C.....D.....E.....F..... |
| 312 | + "yz\u0a70\u0a71\u0a72\u0a73\u0a74", |
| 313 | |
| 314 | /* A.3.11 Tamil National Language Locking Shift Table |
| 315 | 01.....2.....3.....4.....5.....6.....7.....8.....9A.BCD.E.....F.....0.....12.....3.. |
| 316 | ... */ |
| 317 | " \u0b82\u0b83\u0b85\u0b86\u0b87\u0b88\u0b89\u0b8a \n \r\u0b8e\u0b8f\u0b90 " |
| 318 | + "\u0b92\u0b93" |
| 319 | // 4.....5.....6789.....A.....B.....CD.....EF.....012.....3456.....7.... |
| 320 | // .89ABCDEF..... |
| 321 | + "\u0b94\u0b95 \u0b99\u0b9a\uffff \u0b9c \u0b9e !\u0b9f \u0ba3\u0ba4)( " |
| 322 | + ", .\u0ba8" |
| 323 | // 0123456789ABC.....D.....EF012.....3.....4.....5.....6.....7.....8.....9... |
| 324 | // ..A..... |
| 325 | + "0123456789:;\u0ba9\u0baa ? " |
| 326 | + "\u0bae\u0baf\u0bb0\u0bb1\u0bb2\u0bb3\u0bb4\u0bb5\u0bb6" |
| 327 | // B.....C.....D.....EF0.....1.....2.....3.....4.....5678.....9.....A.....BC. |
| 328 | // ....D..... |
| 329 | + "\u0bb7\u0bb8\u0bb9 \u0bbe\u0bbf\u0bc0\u0bc1\u0bc2 \u0bc6\u0bc7\u0bc8 " |
| 330 | + "\u0bca\u0bcb" |
| 331 | // E.....F.....0.....123456789ABCDEF0123456789AB.....C.....D.....E.....F..... |
| 332 | + "\u0bcc\u0bcd\u0bd0abcdefghijklmnopqrstuvwxyz\u0bd7\u0bf0\u0bf1\u0bf2\u0bf9", |
| 333 | |
| 334 | /* A.3.12 Telugu National Language Locking Shift Table |
| 335 | 0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A.B.....CD.E.....F.....0 |
| 336 | .....*/ |
| 337 | "\u0c01\u0c02\u0c03\u0c05\u0c06\u0c07\u0c08\u0c09\u0c0a\u0c0b\n\u0c0c " |
| 338 | + "\r\u0c0e\u0c0f\u0c10" |
| 339 | // 12.....3.....4.....5.....6.....7.....8.....9.....A.....B.....C.....D.....E |
| 340 | // ..... |
| 341 | + " \u0c12\u0c13\u0c14\u0c15\u0c16\u0c17\u0c18\u0c19\u0c1a\uffff\u0c1b\u0c1c" |
| 342 | + "\u0c1d" |
| 343 | // F.....012.....3.....4.....5.....6.....7.....89A.....B.....CD.....EF.... |
| 344 | // .0123456789AB |
| 345 | + "\u0c1e !\u0c1f\u0c20\u0c21\u0c22\u0c23\u0c24)(\u0c25\u0c26,\u0c27" |
| 346 | + ".\u0c280123456789:;" |
| 347 | // CD.....E.....F0.....1.....2.....3.....4.....5.....6.....7.....89.....A.... |
| 348 | // .B..... |
| 349 | + " \u0c2a\u0c2b?\u0c2c\u0c2d\u0c2e\u0c2f\u0c30\u0c31\u0c32\u0c33 " |
| 350 | + "\u0c35\u0c36\u0c37" |
| 351 | // C.....D.....EF.....0.....1.....2.....3.....4.....5.....6.....78.....9.... |
| 352 | // .A.....B |
| 353 | + "\u0c38\u0c39 \u0c3d\u0c3e\u0c3f\u0c40\u0c41\u0c42\u0c43\u0c44 " |
| 354 | + "\u0c46\u0c47\u0c48 " |
| 355 | // C.....D.....E.....F.....0.....123456789ABCDEF0123456789AB.....C.....D.... |
| 356 | // .E..... |
| 357 | + "\u0c4a\u0c4b\u0c4c\u0c4d\u0c55abcdefghijklmnopqrstuvwxyz\u0c56\u0c60\u0c61" |
| 358 | + "\u0c62" |
| 359 | // F..... |
| 360 | + "\u0c63", |
| 361 | |
| 362 | /* A.3.13 Urdu National Language Locking Shift Table |
| 363 | 0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A.B.....C.....D.E.....F. |
| 364 | ....*/ |
| 365 | "\u0627\u0622\u0628\u067b\u0680\u067e\u06a6\u062a\u06c2\u067f\n\u0679\u067d\r\u067a" |
| 366 | + "\u067c" |
| 367 | // 0.....1.....2.....3.....4.....5.....6.....7.....8.....9.....A.....B.....C. |
| 368 | // ....D..... |
| 369 | + "\u062b\u062c\u0681\u0684\u0683\u0685\u0686\u0687\u062d\u062e\u062f\uffff" |
| 370 | + "\u068c\u0688" |
| 371 | // E.....F.....012.....3.....4.....5.....6.....7.....89A.....B.....CD.....EF. |
| 372 | // ....012345 |
| 373 | + "\u0689\u068a !\u068f\u068d\u0630\u0631\u0691\u0693)(\u0699\u0632,\u0696" |
| 374 | + ".\u0698012345" |
| 375 | // 6789ABC.....D.....E.....F0.....1.....2.....3.....4.....5.....6.....7.....8 |
| 376 | // ..... |
| 377 | + "6789:;\u069a\u0633\u0634?\u0635\u0636\u0637\u0638\u0639\u0641\u0642\u06a9" |
| 378 | + "\u06aa" |
| 379 | // 9.....A.....B.....C.....D.....E.....F.....0.....1.....2.....3.....4.....5. |
| 380 | // ....6..... |
| 381 | + "\u06ab\u06af\u06b3\u06b1\u0644\u0645\u0646\u06ba\u06bb\u06bc\u0648\u06c4" |
| 382 | + "\u06d5\u06c1" |
| 383 | // 7.....8.....9.....A.....B.....C.....D.....E.....F.....0.... |
| 384 | // .123456789ABCDEF012345678 |
| 385 | + "\u06be\u0621\u06cc\u06d0\u06d2\u064d\u0650\u064f\u0657" |
| 386 | + "\u0654abcdefghijklmnopqrstuvwx" |
| 387 | // 9AB.....C.....D.....E.....F..... |
| 388 | + "yz\u0655\u0651\u0653\u0656\u0670" |
| 389 | }; |
| 390 | |
| 391 | /** |
| 392 | * GSM default extension table plus national language single shift character tables. |
| 393 | */ |
| 394 | @UnsupportedAppUsage |
| 395 | private static final String[] sLanguageShiftTables = new String[]{ |
| 396 | /* 6.2.1.1 GSM 7 bit Default Alphabet Extension Table |
| 397 | 0123456789A.....BCDEF0123456789ABCDEF0123456789ABCDEF |
| 398 | .0123456789ABCDEF0123456789ABCDEF */ |
| 399 | " \u000c ^ {} \\ [~] | " |
| 400 | // 0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF |
| 401 | + " \u20ac ", |
| 402 | |
| 403 | /* A.2.1 Turkish National Language Single Shift Table |
| 404 | 0123456789A.....BCDEF0123456789ABCDEF0123456789ABCDEF.0123456789ABCDEF01234567.....8 */ |
| 405 | " \u000c ^ {} \\ [~] | \u011e " |
| 406 | // 9.....ABCDEF0123.....456789ABCDEF0123.....45.....67.....89.....ABCDEF0123. |
| 407 | // .... |
| 408 | + "\u0130 \u015e \u00e7 \u20ac \u011f \u0131 " |
| 409 | + "\u015f" |
| 410 | // 456789ABCDEF |
| 411 | + " ", |
| 412 | |
| 413 | /* A.2.2 Spanish National Language Single Shift Table |
| 414 | 0123456789.....A.....BCDEF0123456789ABCDEF0123456789ABCDEF.0123456789ABCDEF01.....23 */ |
| 415 | " \u00e7\u000c ^ {} \\ [~] |\u00c1 " |
| 416 | // 456789.....ABCDEF.....012345.....6789ABCDEF01.....2345.....6789.....ABCDEF |
| 417 | // .....012 |
| 418 | + " \u00cd \u00d3 \u00da \u00e1 \u20ac \u00ed " |
| 419 | + "\u00f3 " |
| 420 | // 345.....6789ABCDEF |
| 421 | + " \u00fa ", |
| 422 | |
| 423 | /* A.2.3 Portuguese National Language Single Shift Table |
| 424 | 012345.....6789.....A.....B.....C.....DE.....F.....012.....3.....45.....6.....7.... |
| 425 | .8....*/ |
| 426 | " \u00ea \u00e7\u000c\u00d4\u00f4 \u00c1\u00e1 " |
| 427 | + "\u03a6\u0393^\u03a9\u03a0\u03a8\u03a3" |
| 428 | // 9.....ABCDEF.....0123456789ABCDEF.0123456789ABCDEF01.....23456789.....ABCDE |
| 429 | + "\u0398 \u00ca {} \\ [~] |\u00c0 \u00cd " |
| 430 | // F.....012345.....6789AB.....C.....DEF01.....2345.....6789.....ABCDEF.... |
| 431 | // .01234 |
| 432 | + "\u00d3 \u00da \u00c3\u00d5 \u00c2 \u20ac \u00ed \u00f3 " |
| 433 | + " " |
| 434 | // 5.....6789AB.....C.....DEF..... |
| 435 | + "\u00fa \u00e3\u00f5 \u00e2", |
| 436 | |
| 437 | /* A.2.4 Bengali National Language Single Shift Table |
| 438 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 439 | .. */ |
| 440 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u09e6\u09e7 \u09e8\u09e9" |
| 441 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... |
| 442 | // .C..... |
| 443 | + "\u09ea\u09eb\u09ec\u09ed\u09ee\u09ef\u09df\u09e0\u09e1\u09e2{}\u09e3\u09f2" |
| 444 | + "\u09f3" |
| 445 | // D.....E.....F.0.....1.....2.....3.....4.....56789ABCDEF0123456789ABCDEF |
| 446 | + "\u09f4\u09f5\\\u09f6\u09f7\u09f8\u09f9\u09fa [~] |ABCDEFGHIJKLMNO" |
| 447 | // 0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF |
| 448 | + "PQRSTUVWXYZ \u20ac ", |
| 449 | |
| 450 | /* A.2.5 Gujarati National Language Single Shift Table |
| 451 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 452 | .. */ |
| 453 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0ae6\u0ae7" |
| 454 | // E.....F.....0.....1.....2.....3.....4.....5.....6789ABCDEF.0123456789ABCDEF |
| 455 | + "\u0ae8\u0ae9\u0aea\u0aeb\u0aec\u0aed\u0aee\u0aef {} \\ [~] " |
| 456 | // 0123456789ABCDEF0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF |
| 457 | + "|ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac ", |
| 458 | |
| 459 | /* A.2.6 Hindi National Language Single Shift Table |
| 460 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 461 | .. */ |
| 462 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0966\u0967" |
| 463 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... |
| 464 | // .C..... |
| 465 | + "\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f\u0951\u0952{}\u0953\u0954" |
| 466 | + "\u0958" |
| 467 | // D.....E.....F.0.....1.....2.....3.....4.....5.....6.....7.....8.....9.... |
| 468 | // .A..... |
| 469 | + "\u0959\u095a\\\u095b\u095c\u095d\u095e\u095f\u0960\u0961\u0962\u0963\u0970" |
| 470 | + "\u0971" |
| 471 | // BCDEF0123456789ABCDEF0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF |
| 472 | + " [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac ", |
| 473 | |
| 474 | /* A.2.7 Kannada National Language Single Shift Table |
| 475 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 476 | .. */ |
| 477 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0ce6\u0ce7" |
| 478 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....BCDEF |
| 479 | // .01234567 |
| 480 | + "\u0ce8\u0ce9\u0cea\u0ceb\u0cec\u0ced\u0cee\u0cef\u0cde\u0cf1{}\u0cf2 \\" |
| 481 | + " " |
| 482 | // 89ABCDEF0123456789ABCDEF0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF |
| 483 | + " [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " |
| 484 | + " ", |
| 485 | |
| 486 | /* A.2.8 Malayalam National Language Single Shift Table |
| 487 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 488 | .. */ |
| 489 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0d66\u0d67" |
| 490 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... |
| 491 | // .C..... |
| 492 | + "\u0d68\u0d69\u0d6a\u0d6b\u0d6c\u0d6d\u0d6e\u0d6f\u0d70\u0d71{}\u0d72\u0d73" |
| 493 | + "\u0d74" |
| 494 | // D.....E.....F.0.....1.....2.....3.....4.... |
| 495 | // .56789ABCDEF0123456789ABCDEF0123456789A |
| 496 | + "\u0d75\u0d7a\\\u0d7b\u0d7c\u0d7d\u0d7e\u0d7f [~] " |
| 497 | + "|ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| 498 | // BCDEF012345.....6789ABCDEF0123456789ABCDEF |
| 499 | + " \u20ac ", |
| 500 | |
| 501 | /* A.2.9 Oriya National Language Single Shift Table |
| 502 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 503 | .. */ |
| 504 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0b66\u0b67" |
| 505 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... |
| 506 | // .C.....DE |
| 507 | + "\u0b68\u0b69\u0b6a\u0b6b\u0b6c\u0b6d\u0b6e\u0b6f\u0b5c\u0b5d{}\u0b5f\u0b70" |
| 508 | + "\u0b71 " |
| 509 | // F.0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345.... |
| 510 | // .6789ABCDEF0123456789A |
| 511 | + "\\ [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " |
| 512 | + " " |
| 513 | // BCDEF |
| 514 | + " ", |
| 515 | |
| 516 | /* A.2.10 Punjabi National Language Single Shift Table |
| 517 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 518 | .. */ |
| 519 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0a66\u0a67" |
| 520 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... |
| 521 | // .C..... |
| 522 | + "\u0a68\u0a69\u0a6a\u0a6b\u0a6c\u0a6d\u0a6e\u0a6f\u0a59\u0a5a{}\u0a5b\u0a5c" |
| 523 | + "\u0a5e" |
| 524 | // D.....EF.0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345.... |
| 525 | // .6789ABCDEF01 |
| 526 | + "\u0a75 \\ [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " |
| 527 | + " " |
| 528 | // 23456789ABCDEF |
| 529 | + " ", |
| 530 | |
| 531 | /* A.2.11 Tamil National Language Single Shift Table |
| 532 | NOTE: TS 23.038 V9.1.1 shows code 0x24 as \u0bef, corrected to \u0bee (typo) |
| 533 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 534 | .. */ |
| 535 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0be6\u0be7" |
| 536 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... |
| 537 | // .C..... |
| 538 | + "\u0be8\u0be9\u0bea\u0beb\u0bec\u0bed\u0bee\u0bef\u0bf3\u0bf4{}\u0bf5\u0bf6" |
| 539 | + "\u0bf7" |
| 540 | // D.....E.....F.0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345.... |
| 541 | // .6789ABC |
| 542 | + "\u0bf8\u0bfa\\ [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " |
| 543 | + " " |
| 544 | // DEF0123456789ABCDEF |
| 545 | + " ", |
| 546 | |
| 547 | /* A.2.12 Telugu National Language Single Shift Table |
| 548 | NOTE: TS 23.038 V9.1.1 shows code 0x22-0x23 as \u06cc\u06cd, corrected to |
| 549 | \u0c6c\u0c6d |
| 550 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789ABC.....D.....E.....F. |
| 551 | .... */ |
| 552 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#* " |
| 553 | + "\u0c66\u0c67\u0c68\u0c69" |
| 554 | // 0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.....C.....D.... |
| 555 | // .E.....F. |
| 556 | + "\u0c6a\u0c6b\u0c6c\u0c6d\u0c6e\u0c6f\u0c58\u0c59{}\u0c78\u0c79\u0c7a\u0c7b" |
| 557 | + "\u0c7c\\" |
| 558 | // 0.....1.....2.....3456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345.... |
| 559 | // .6789ABCD |
| 560 | + "\u0c7d\u0c7e\u0c7f [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac" |
| 561 | + " " |
| 562 | // EF0123456789ABCDEF |
| 563 | + " ", |
| 564 | |
| 565 | /* A.2.13 Urdu National Language Single Shift Table |
| 566 | 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... |
| 567 | .. */ |
| 568 | "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0600\u0601 \u06f0\u06f1" |
| 569 | // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... |
| 570 | // .C..... |
| 571 | + "\u06f2\u06f3\u06f4\u06f5\u06f6\u06f7\u06f8\u06f9\u060c\u060d{}\u060e\u060f" |
| 572 | + "\u0610" |
| 573 | // D.....E.....F.0.....1.....2.....3.....4.....5.....6.....7.....8.....9.... |
| 574 | // .A..... |
| 575 | + "\u0611\u0612\\\u0613\u0614\u061b\u061f\u0640\u0652\u0658\u066b\u066c\u0672" |
| 576 | + "\u0673" |
| 577 | // B.....CDEF.....0123456789ABCDEF0123456789ABCDEF012345.... |
| 578 | // .6789ABCDEF0123456789ABCDEF |
| 579 | + "\u06cd[~]\u06d4|ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " |
| 580 | + " " |
| 581 | }; |
| 582 | |
| 583 | static { |
| 584 | int numTables = sLanguageTables.length; |
| 585 | int numShiftTables = sLanguageShiftTables.length; |
| 586 | if (numTables != numShiftTables) { |
| 587 | Log.e(TAG, "Error: language tables array length " + numTables |
| 588 | + " != shift tables array length " + numShiftTables); |
| 589 | } |
| 590 | |
| 591 | sCharsToGsmTables = new SparseIntArray[numTables]; |
| 592 | for (int i = 0; i < numTables; i++) { |
| 593 | String table = sLanguageTables[i]; |
| 594 | |
| 595 | int tableLen = table.length(); |
| 596 | if (tableLen != 0 && tableLen != 128) { |
| 597 | Log.e(TAG, "Error: language tables index " + i + " length " + tableLen |
| 598 | + " (expected 128 or 0)"); |
| 599 | } |
| 600 | |
| 601 | SparseIntArray charToGsmTable = new SparseIntArray(tableLen); |
| 602 | sCharsToGsmTables[i] = charToGsmTable; |
| 603 | for (int j = 0; j < tableLen; j++) { |
| 604 | char c = table.charAt(j); |
| 605 | charToGsmTable.put(c, j); |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | sCharsToShiftTables = new SparseIntArray[numShiftTables]; |
| 610 | for (int i = 0; i < numShiftTables; i++) { |
| 611 | String shiftTable = sLanguageShiftTables[i]; |
| 612 | |
| 613 | int shiftTableLen = shiftTable.length(); |
| 614 | if (shiftTableLen != 0 && shiftTableLen != 128) { |
| 615 | Log.e(TAG, "Error: language shift tables index " + i + " length " + shiftTableLen |
| 616 | + " (expected 128 or 0)"); |
| 617 | } |
| 618 | |
| 619 | SparseIntArray charToShiftTable = new SparseIntArray(shiftTableLen); |
| 620 | sCharsToShiftTables[i] = charToShiftTable; |
| 621 | for (int j = 0; j < shiftTableLen; j++) { |
| 622 | char c = shiftTable.charAt(j); |
| 623 | if (c != ' ') { |
| 624 | charToShiftTable.put(c, j); |
| 625 | } |
| 626 | } |
| 627 | } |
| 628 | } |
| 629 | |
| 630 | /** |
| 631 | * Convert a GSM alphabet 7 bit packed string (SMS string) into a |
| 632 | * {@link java.lang.String}. |
| 633 | * |
| 634 | * See TS 23.038 6.1.2.1 for SMS Character Packing |
| 635 | * |
| 636 | * @param pdu the raw data from the pdu |
| 637 | * @param offset the byte offset of |
| 638 | * @param lengthSeptets string length in septets, not bytes |
| 639 | * @return String representation or null on decoding exception |
| 640 | */ |
| 641 | @UnsupportedAppUsage |
| 642 | public static String gsm7BitPackedToString(byte[] pdu, int offset, |
| 643 | int lengthSeptets) { |
| 644 | return gsm7BitPackedToString(pdu, offset, lengthSeptets, 0, 0, 0); |
| 645 | } |
| 646 | |
| 647 | /** |
| 648 | * Convert a GSM alphabet 7 bit packed string (SMS string) into a |
| 649 | * {@link java.lang.String}. |
| 650 | * |
| 651 | * See TS 23.038 6.1.2.1 for SMS Character Packing |
| 652 | * |
| 653 | * @param pdu the raw data from the pdu |
| 654 | * @param offset the byte offset of |
| 655 | * @param lengthSeptets string length in septets, not bytes |
| 656 | * @param numPaddingBits the number of padding bits before the start of the |
| 657 | * string in the first byte |
| 658 | * @param languageTable the 7 bit language table, or 0 for the default GSM alphabet |
| 659 | * @param shiftTable the 7 bit single shift language table, or 0 for the default |
| 660 | * GSM extension table |
| 661 | * @return String representation or null on decoding exception |
| 662 | */ |
| 663 | @UnsupportedAppUsage |
| 664 | public static String gsm7BitPackedToString(byte[] pdu, int offset, |
| 665 | int lengthSeptets, int numPaddingBits, int languageTable, int shiftTable) { |
| 666 | StringBuilder ret = new StringBuilder(lengthSeptets); |
| 667 | |
| 668 | if (languageTable < 0 || languageTable > sLanguageTables.length) { |
| 669 | Log.w(TAG, "unknown language table " + languageTable + ", using default"); |
| 670 | languageTable = 0; |
| 671 | } |
| 672 | if (shiftTable < 0 || shiftTable > sLanguageShiftTables.length) { |
| 673 | Log.w(TAG, "unknown single shift table " + shiftTable + ", using default"); |
| 674 | shiftTable = 0; |
| 675 | } |
| 676 | |
| 677 | try { |
| 678 | boolean prevCharWasEscape = false; |
| 679 | String languageTableToChar = sLanguageTables[languageTable]; |
| 680 | String shiftTableToChar = sLanguageShiftTables[shiftTable]; |
| 681 | |
| 682 | if (languageTableToChar.isEmpty()) { |
| 683 | Log.w(TAG, "no language table for code " + languageTable + ", using default"); |
| 684 | languageTableToChar = sLanguageTables[0]; |
| 685 | } |
| 686 | if (shiftTableToChar.isEmpty()) { |
| 687 | Log.w(TAG, "no single shift table for code " + shiftTable + ", using default"); |
| 688 | shiftTableToChar = sLanguageShiftTables[0]; |
| 689 | } |
| 690 | |
| 691 | for (int i = 0; i < lengthSeptets; i++) { |
| 692 | int bitOffset = (7 * i) + numPaddingBits; |
| 693 | |
| 694 | int byteOffset = bitOffset / 8; |
| 695 | int shift = bitOffset % 8; |
| 696 | int gsmVal; |
| 697 | |
| 698 | gsmVal = (0x7f & (pdu[offset + byteOffset] >> shift)); |
| 699 | |
| 700 | // if it crosses a byte boundary |
| 701 | if (shift > 1) { |
| 702 | // set msb bits to 0 |
| 703 | gsmVal &= 0x7f >> (shift - 1); |
| 704 | |
| 705 | gsmVal |= 0x7f & (pdu[offset + byteOffset + 1] << (8 - shift)); |
| 706 | } |
| 707 | |
| 708 | if (prevCharWasEscape) { |
| 709 | if (gsmVal == GSM_EXTENDED_ESCAPE) { |
| 710 | ret.append(' '); // display ' ' for reserved double escape sequence |
| 711 | } else { |
| 712 | char c = shiftTableToChar.charAt(gsmVal); |
| 713 | if (c == ' ') { |
| 714 | ret.append(languageTableToChar.charAt(gsmVal)); |
| 715 | } else { |
| 716 | ret.append(c); |
| 717 | } |
| 718 | } |
| 719 | prevCharWasEscape = false; |
| 720 | } else if (gsmVal == GSM_EXTENDED_ESCAPE) { |
| 721 | prevCharWasEscape = true; |
| 722 | } else { |
| 723 | ret.append(languageTableToChar.charAt(gsmVal)); |
| 724 | } |
| 725 | } |
| 726 | } catch (RuntimeException ex) { |
| 727 | Log.e(TAG, "Error GSM 7 bit packed: ", ex); |
| 728 | return null; |
| 729 | } |
| 730 | |
| 731 | return ret.toString(); |
| 732 | } |
| 733 | } |