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.text.TextUtils; 20 import android.util.Log; 21 import android.util.SparseIntArray; 22 23 import java.nio.ByteBuffer; 24 import java.nio.charset.Charset; 25 26 /** 27 * This class implements the character set mapping between 28 * the GSM SMS 7-bit alphabet specified in TS 23.038 6.2.1 29 * and UTF-16 30 * 31 * {@hide} 32 */ 33 public class GsmAlphabet { 34 private static final String TAG = "GSM"; 35 GsmAlphabet()36 private GsmAlphabet() { 37 } 38 39 /** 40 * This escapes extended characters, and when present indicates that the 41 * following character should be looked up in the "extended" table. 42 * 43 * gsmToChar(GSM_EXTENDED_ESCAPE) returns 0xffff 44 */ 45 public static final byte GSM_EXTENDED_ESCAPE = 0x1B; 46 47 /** 48 * User data header requires one octet for length. Count as one septet, because 49 * all combinations of header elements below will have at least one free bit 50 * when padding to the nearest septet boundary. 51 */ 52 public static final int UDH_SEPTET_COST_LENGTH = 1; 53 54 /** 55 * Using a non-default language locking shift table OR single shift table 56 * requires a user data header of 3 octets, or 4 septets, plus UDH length. 57 */ 58 public static final int UDH_SEPTET_COST_ONE_SHIFT_TABLE = 4; 59 60 /** 61 * Using a non-default language locking shift table AND single shift table 62 * requires a user data header of 6 octets, or 7 septets, plus UDH length. 63 */ 64 public static final int UDH_SEPTET_COST_TWO_SHIFT_TABLES = 7; 65 66 /** 67 * Multi-part messages require a user data header of 5 octets, or 6 septets, 68 * plus UDH length. 69 */ 70 public static final int UDH_SEPTET_COST_CONCATENATED_MESSAGE = 6; 71 72 /** Reverse mapping from Unicode characters to indexes into language tables. */ 73 private static SparseIntArray[] sCharsToGsmTables; 74 75 /** Reverse mapping from Unicode characters to indexes into language shift tables. */ 76 private static SparseIntArray[] sCharsToShiftTables; 77 78 /** 79 * GSM default 7 bit alphabet plus national language locking shift character tables. 80 * Comment lines above strings indicate the lower four bits of the table position. 81 */ 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 private static final String[] sLanguageShiftTables = new String[]{ 395 /* 6.2.1.1 GSM 7 bit Default Alphabet Extension Table 396 0123456789A.....BCDEF0123456789ABCDEF0123456789ABCDEF 397 .0123456789ABCDEF0123456789ABCDEF */ 398 " \u000c ^ {} \\ [~] | " 399 // 0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF 400 + " \u20ac ", 401 402 /* A.2.1 Turkish National Language Single Shift Table 403 0123456789A.....BCDEF0123456789ABCDEF0123456789ABCDEF.0123456789ABCDEF01234567.....8 */ 404 " \u000c ^ {} \\ [~] | \u011e " 405 // 9.....ABCDEF0123.....456789ABCDEF0123.....45.....67.....89.....ABCDEF0123. 406 // .... 407 + "\u0130 \u015e \u00e7 \u20ac \u011f \u0131 " 408 + "\u015f" 409 // 456789ABCDEF 410 + " ", 411 412 /* A.2.2 Spanish National Language Single Shift Table 413 0123456789.....A.....BCDEF0123456789ABCDEF0123456789ABCDEF.0123456789ABCDEF01.....23 */ 414 " \u00e7\u000c ^ {} \\ [~] |\u00c1 " 415 // 456789.....ABCDEF.....012345.....6789ABCDEF01.....2345.....6789.....ABCDEF 416 // .....012 417 + " \u00cd \u00d3 \u00da \u00e1 \u20ac \u00ed " 418 + "\u00f3 " 419 // 345.....6789ABCDEF 420 + " \u00fa ", 421 422 /* A.2.3 Portuguese National Language Single Shift Table 423 012345.....6789.....A.....B.....C.....DE.....F.....012.....3.....45.....6.....7.... 424 .8....*/ 425 " \u00ea \u00e7\u000c\u00d4\u00f4 \u00c1\u00e1 " 426 + "\u03a6\u0393^\u03a9\u03a0\u03a8\u03a3" 427 // 9.....ABCDEF.....0123456789ABCDEF.0123456789ABCDEF01.....23456789.....ABCDE 428 + "\u0398 \u00ca {} \\ [~] |\u00c0 \u00cd " 429 // F.....012345.....6789AB.....C.....DEF01.....2345.....6789.....ABCDEF.... 430 // .01234 431 + "\u00d3 \u00da \u00c3\u00d5 \u00c2 \u20ac \u00ed \u00f3 " 432 + " " 433 // 5.....6789AB.....C.....DEF..... 434 + "\u00fa \u00e3\u00f5 \u00e2", 435 436 /* A.2.4 Bengali National Language Single Shift Table 437 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 438 .. */ 439 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u09e6\u09e7 \u09e8\u09e9" 440 // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... 441 // .C..... 442 + "\u09ea\u09eb\u09ec\u09ed\u09ee\u09ef\u09df\u09e0\u09e1\u09e2{}\u09e3\u09f2" 443 + "\u09f3" 444 // D.....E.....F.0.....1.....2.....3.....4.....56789ABCDEF0123456789ABCDEF 445 + "\u09f4\u09f5\\\u09f6\u09f7\u09f8\u09f9\u09fa [~] |ABCDEFGHIJKLMNO" 446 // 0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF 447 + "PQRSTUVWXYZ \u20ac ", 448 449 /* A.2.5 Gujarati National Language Single Shift Table 450 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 451 .. */ 452 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0ae6\u0ae7" 453 // E.....F.....0.....1.....2.....3.....4.....5.....6789ABCDEF.0123456789ABCDEF 454 + "\u0ae8\u0ae9\u0aea\u0aeb\u0aec\u0aed\u0aee\u0aef {} \\ [~] " 455 // 0123456789ABCDEF0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF 456 + "|ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac ", 457 458 /* A.2.6 Hindi National Language Single Shift Table 459 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 460 .. */ 461 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0966\u0967" 462 // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... 463 // .C..... 464 + "\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f\u0951\u0952{}\u0953\u0954" 465 + "\u0958" 466 // D.....E.....F.0.....1.....2.....3.....4.....5.....6.....7.....8.....9.... 467 // .A..... 468 + "\u0959\u095a\\\u095b\u095c\u095d\u095e\u095f\u0960\u0961\u0962\u0963\u0970" 469 + "\u0971" 470 // BCDEF0123456789ABCDEF0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF 471 + " [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac ", 472 473 /* A.2.7 Kannada National Language Single Shift Table 474 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 475 .. */ 476 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0ce6\u0ce7" 477 // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....BCDEF 478 // .01234567 479 + "\u0ce8\u0ce9\u0cea\u0ceb\u0cec\u0ced\u0cee\u0cef\u0cde\u0cf1{}\u0cf2 \\" 480 + " " 481 // 89ABCDEF0123456789ABCDEF0123456789ABCDEF012345.....6789ABCDEF0123456789ABCDEF 482 + " [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " 483 + " ", 484 485 /* A.2.8 Malayalam National Language Single Shift Table 486 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 487 .. */ 488 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0d66\u0d67" 489 // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... 490 // .C..... 491 + "\u0d68\u0d69\u0d6a\u0d6b\u0d6c\u0d6d\u0d6e\u0d6f\u0d70\u0d71{}\u0d72\u0d73" 492 + "\u0d74" 493 // D.....E.....F.0.....1.....2.....3.....4.... 494 // .56789ABCDEF0123456789ABCDEF0123456789A 495 + "\u0d75\u0d7a\\\u0d7b\u0d7c\u0d7d\u0d7e\u0d7f [~] " 496 + "|ABCDEFGHIJKLMNOPQRSTUVWXYZ" 497 // BCDEF012345.....6789ABCDEF0123456789ABCDEF 498 + " \u20ac ", 499 500 /* A.2.9 Oriya National Language Single Shift Table 501 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 502 .. */ 503 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0b66\u0b67" 504 // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... 505 // .C.....DE 506 + "\u0b68\u0b69\u0b6a\u0b6b\u0b6c\u0b6d\u0b6e\u0b6f\u0b5c\u0b5d{}\u0b5f\u0b70" 507 + "\u0b71 " 508 // F.0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345.... 509 // .6789ABCDEF0123456789A 510 + "\\ [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " 511 + " " 512 // BCDEF 513 + " ", 514 515 /* A.2.10 Punjabi National Language Single Shift Table 516 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 517 .. */ 518 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0a66\u0a67" 519 // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... 520 // .C..... 521 + "\u0a68\u0a69\u0a6a\u0a6b\u0a6c\u0a6d\u0a6e\u0a6f\u0a59\u0a5a{}\u0a5b\u0a5c" 522 + "\u0a5e" 523 // D.....EF.0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345.... 524 // .6789ABCDEF01 525 + "\u0a75 \\ [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " 526 + " " 527 // 23456789ABCDEF 528 + " ", 529 530 /* A.2.11 Tamil National Language Single Shift Table 531 NOTE: TS 23.038 V9.1.1 shows code 0x24 as \u0bef, corrected to \u0bee (typo) 532 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 533 .. */ 534 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0964\u0965 \u0be6\u0be7" 535 // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... 536 // .C..... 537 + "\u0be8\u0be9\u0bea\u0beb\u0bec\u0bed\u0bee\u0bef\u0bf3\u0bf4{}\u0bf5\u0bf6" 538 + "\u0bf7" 539 // D.....E.....F.0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345.... 540 // .6789ABC 541 + "\u0bf8\u0bfa\\ [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " 542 + " " 543 // DEF0123456789ABCDEF 544 + " ", 545 546 /* A.2.12 Telugu National Language Single Shift Table 547 NOTE: TS 23.038 V9.1.1 shows code 0x22-0x23 as \u06cc\u06cd, corrected to 548 \u0c6c\u0c6d 549 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789ABC.....D.....E.....F. 550 .... */ 551 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#* " 552 + "\u0c66\u0c67\u0c68\u0c69" 553 // 0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.....C.....D.... 554 // .E.....F. 555 + "\u0c6a\u0c6b\u0c6c\u0c6d\u0c6e\u0c6f\u0c58\u0c59{}\u0c78\u0c79\u0c7a\u0c7b" 556 + "\u0c7c\\" 557 // 0.....1.....2.....3456789ABCDEF0123456789ABCDEF0123456789ABCDEF012345.... 558 // .6789ABCD 559 + "\u0c7d\u0c7e\u0c7f [~] |ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac" 560 + " " 561 // EF0123456789ABCDEF 562 + " ", 563 564 /* A.2.13 Urdu National Language Single Shift Table 565 01.....23.....4.....5.6.....789A.....BCDEF0123.....45.....6789.....A.....BC.....D... 566 .. */ 567 "@\u00a3$\u00a5\u00bf\"\u00a4%&'\u000c*+ -/<=>\u00a1^\u00a1_#*\u0600\u0601 \u06f0\u06f1" 568 // E.....F.....0.....1.....2.....3.....4.....5.....6.....7.....89A.....B.... 569 // .C..... 570 + "\u06f2\u06f3\u06f4\u06f5\u06f6\u06f7\u06f8\u06f9\u060c\u060d{}\u060e\u060f" 571 + "\u0610" 572 // D.....E.....F.0.....1.....2.....3.....4.....5.....6.....7.....8.....9.... 573 // .A..... 574 + "\u0611\u0612\\\u0613\u0614\u061b\u061f\u0640\u0652\u0658\u066b\u066c\u0672" 575 + "\u0673" 576 // B.....CDEF.....0123456789ABCDEF0123456789ABCDEF012345.... 577 // .6789ABCDEF0123456789ABCDEF 578 + "\u06cd[~]\u06d4|ABCDEFGHIJKLMNOPQRSTUVWXYZ \u20ac " 579 + " " 580 }; 581 582 static { 583 int numTables = sLanguageTables.length; 584 int numShiftTables = sLanguageShiftTables.length; 585 if (numTables != numShiftTables) { Log.e(TAG, "Error: language tables array length " + numTables + " != shift tables array length " + numShiftTables)586 Log.e(TAG, "Error: language tables array length " + numTables 587 + " != shift tables array length " + numShiftTables); 588 } 589 590 sCharsToGsmTables = new SparseIntArray[numTables]; 591 for (int i = 0; i < numTables; i++) { 592 String table = sLanguageTables[i]; 593 594 int tableLen = table.length(); 595 if (tableLen != 0 && tableLen != 128) { Log.e(TAG, "Error: language tables index " + i + " length " + tableLen + " (expected 128 or 0)")596 Log.e(TAG, "Error: language tables index " + i + " length " + tableLen 597 + " (expected 128 or 0)"); 598 } 599 600 SparseIntArray charToGsmTable = new SparseIntArray(tableLen); 601 sCharsToGsmTables[i] = charToGsmTable; 602 for (int j = 0; j < tableLen; j++) { 603 char c = table.charAt(j); charToGsmTable.put(c, j)604 charToGsmTable.put(c, j); 605 } 606 } 607 608 sCharsToShiftTables = new SparseIntArray[numShiftTables]; 609 for (int i = 0; i < numShiftTables; i++) { 610 String shiftTable = sLanguageShiftTables[i]; 611 612 int shiftTableLen = shiftTable.length(); 613 if (shiftTableLen != 0 && shiftTableLen != 128) { Log.e(TAG, "Error: language shift tables index " + i + " length " + shiftTableLen + " (expected 128 or 0)")614 Log.e(TAG, "Error: language shift tables index " + i + " length " + shiftTableLen 615 + " (expected 128 or 0)"); 616 } 617 618 SparseIntArray charToShiftTable = new SparseIntArray(shiftTableLen); 619 sCharsToShiftTables[i] = charToShiftTable; 620 for (int j = 0; j < shiftTableLen; j++) { 621 char c = shiftTable.charAt(j); 622 if (c != ' ') { charToShiftTable.put(c, j)623 charToShiftTable.put(c, j); 624 } 625 } 626 } 627 } 628 629 /** 630 * Convert a GSM alphabet 7 bit packed string (SMS string) into a 631 * {@link java.lang.String}. 632 * 633 * See TS 23.038 6.1.2.1 for SMS Character Packing 634 * 635 * @param pdu the raw data from the pdu 636 * @param offset the byte offset of 637 * @param lengthSeptets string length in septets, not bytes 638 * @return String representation or null on decoding exception 639 */ gsm7BitPackedToString(byte[] pdu, int offset, int lengthSeptets)640 public static String gsm7BitPackedToString(byte[] pdu, int offset, 641 int lengthSeptets) { 642 return gsm7BitPackedToString(pdu, offset, lengthSeptets, 0, 0, 0); 643 } 644 645 /** 646 * Convert a GSM alphabet 7 bit packed string (SMS string) into a 647 * {@link java.lang.String}. 648 * 649 * See TS 23.038 6.1.2.1 for SMS Character Packing 650 * 651 * @param pdu the raw data from the pdu 652 * @param offset the byte offset of 653 * @param lengthSeptets string length in septets, not bytes 654 * @param numPaddingBits the number of padding bits before the start of the 655 * string in the first byte 656 * @param languageTable the 7 bit language table, or 0 for the default GSM alphabet 657 * @param shiftTable the 7 bit single shift language table, or 0 for the default 658 * GSM extension table 659 * @return String representation or null on decoding exception 660 */ gsm7BitPackedToString(byte[] pdu, int offset, int lengthSeptets, int numPaddingBits, int languageTable, int shiftTable)661 public static String gsm7BitPackedToString(byte[] pdu, int offset, 662 int lengthSeptets, int numPaddingBits, int languageTable, int shiftTable) { 663 StringBuilder ret = new StringBuilder(lengthSeptets); 664 665 if (languageTable < 0 || languageTable > sLanguageTables.length) { 666 Log.w(TAG, "unknown language table " + languageTable + ", using default"); 667 languageTable = 0; 668 } 669 if (shiftTable < 0 || shiftTable > sLanguageShiftTables.length) { 670 Log.w(TAG, "unknown single shift table " + shiftTable + ", using default"); 671 shiftTable = 0; 672 } 673 674 try { 675 boolean prevCharWasEscape = false; 676 String languageTableToChar = sLanguageTables[languageTable]; 677 String shiftTableToChar = sLanguageShiftTables[shiftTable]; 678 679 if (languageTableToChar.isEmpty()) { 680 Log.w(TAG, "no language table for code " + languageTable + ", using default"); 681 languageTableToChar = sLanguageTables[0]; 682 } 683 if (shiftTableToChar.isEmpty()) { 684 Log.w(TAG, "no single shift table for code " + shiftTable + ", using default"); 685 shiftTableToChar = sLanguageShiftTables[0]; 686 } 687 688 for (int i = 0; i < lengthSeptets; i++) { 689 int bitOffset = (7 * i) + numPaddingBits; 690 691 int byteOffset = bitOffset / 8; 692 int shift = bitOffset % 8; 693 int gsmVal; 694 695 gsmVal = (0x7f & (pdu[offset + byteOffset] >> shift)); 696 697 // if it crosses a byte boundary 698 if (shift > 1) { 699 // set msb bits to 0 700 gsmVal &= 0x7f >> (shift - 1); 701 702 gsmVal |= 0x7f & (pdu[offset + byteOffset + 1] << (8 - shift)); 703 } 704 705 if (prevCharWasEscape) { 706 if (gsmVal == GSM_EXTENDED_ESCAPE) { 707 ret.append(' '); // display ' ' for reserved double escape sequence 708 } else { 709 char c = shiftTableToChar.charAt(gsmVal); 710 if (c == ' ') { 711 ret.append(languageTableToChar.charAt(gsmVal)); 712 } else { 713 ret.append(c); 714 } 715 } 716 prevCharWasEscape = false; 717 } else if (gsmVal == GSM_EXTENDED_ESCAPE) { 718 prevCharWasEscape = true; 719 } else { 720 ret.append(languageTableToChar.charAt(gsmVal)); 721 } 722 } 723 } catch (RuntimeException ex) { 724 Log.e(TAG, "Error GSM 7 bit packed: ", ex); 725 return null; 726 } 727 728 return ret.toString(); 729 } 730 731 /** 732 * Convert a GSM alphabet string that's stored in 8-bit unpacked 733 * format (as it often appears in SIM records) into a String 734 * 735 * Field may be padded with trailing 0xff's. The decode stops 736 * at the first 0xff encountered. 737 * 738 * @param data the byte array to decode 739 * @param offset array offset for the first character to decode 740 * @param length the number of bytes to decode 741 * @return the decoded string 742 */ gsm8BitUnpackedToString(byte[] data, int offset, int length)743 public static String gsm8BitUnpackedToString(byte[] data, int offset, int length) { 744 return gsm8BitUnpackedToString(data, offset, length, ""); 745 } 746 747 /** 748 * Convert a GSM alphabet string that's stored in 8-bit unpacked 749 * format (as it often appears in SIM records) into a String 750 * 751 * Field may be padded with trailing 0xff's. The decode stops 752 * at the first 0xff encountered. 753 * 754 * Additionally, in some country(ex. Korea), there are non-ASCII or MBCS characters. 755 * If a character set is given, characters in data are treat as MBCS. 756 */ gsm8BitUnpackedToString( byte[] data, int offset, int length, String characterset)757 public static String gsm8BitUnpackedToString( 758 byte[] data, int offset, int length, String characterset) { 759 boolean isMbcs = false; 760 Charset charset = null; 761 ByteBuffer mbcsBuffer = null; 762 763 if (!TextUtils.isEmpty(characterset) 764 && !characterset.equalsIgnoreCase("us-ascii") 765 && Charset.isSupported(characterset)) { 766 isMbcs = true; 767 charset = Charset.forName(characterset); 768 mbcsBuffer = ByteBuffer.allocate(2); 769 } 770 771 // Always use GSM 7 bit default alphabet table for this method 772 String languageTableToChar = sLanguageTables[0]; 773 String shiftTableToChar = sLanguageShiftTables[0]; 774 775 StringBuilder ret = new StringBuilder(length); 776 boolean prevWasEscape = false; 777 for (int i = offset; i < offset + length; i++) { 778 // Never underestimate the pain that can be caused 779 // by signed bytes 780 int c = data[i] & 0xff; 781 782 if (c == 0xff) { 783 break; 784 } else if (c == GSM_EXTENDED_ESCAPE) { 785 if (prevWasEscape) { 786 // Two escape chars in a row 787 // We treat this as a space 788 // See Note 1 in table 6.2.1.1 of TS 23.038 v7.00 789 ret.append(' '); 790 prevWasEscape = false; 791 } else { 792 prevWasEscape = true; 793 } 794 } else { 795 if (prevWasEscape) { 796 char shiftChar = 797 c < shiftTableToChar.length() ? shiftTableToChar.charAt(c) : ' '; 798 if (shiftChar == ' ') { 799 // display character from main table if not present in shift table 800 if (c < languageTableToChar.length()) { 801 ret.append(languageTableToChar.charAt(c)); 802 } else { 803 ret.append(' '); 804 } 805 } else { 806 ret.append(shiftChar); 807 } 808 } else { 809 if (!isMbcs || c < 0x80 || i + 1 >= offset + length) { 810 if (c < languageTableToChar.length()) { 811 ret.append(languageTableToChar.charAt(c)); 812 } else { 813 ret.append(' '); 814 } 815 } else { 816 // isMbcs must be true. So both mbcsBuffer and charset are initialized. 817 mbcsBuffer.clear(); 818 mbcsBuffer.put(data, i++, 2); 819 mbcsBuffer.flip(); 820 ret.append(charset.decode(mbcsBuffer).toString()); 821 } 822 } 823 prevWasEscape = false; 824 } 825 } 826 827 return ret.toString(); 828 } 829 } 830